Erratic rainfall and increasing temperatures are already causing crops to fail, threatening African farmersâ ability to ensure household food security, he said. Africa is the region most vulnerable to climate variability and change, according to the UN Intergovernmental Panel on Climate Change.
Small-scale family farmers, who provide the majority of food production in Africa, are set to be among the worst affected. Rusinamhodziâs work includes educating African farmers about the impacts of climate change and working with them to tailor sustainable agriculture solutions to increase their food production in the face of increasingly variable weather.
The worldâs population is projected to reach 9.8 billion by 2050, with 2.1 billion people set to live in sub-Saharan Africa alone. The UN Food and Agriculture Organization estimates farmers will need to increase production by at least 70 percent to meet demand. However, climate change is bringing numerous risks to traditional farming systems challenging the ability to increase production, said Rusinamhodzi.
Graphic created by Gerardo Mejia. Data sourced from the UN Intergovernmental Panel on Climate Change.
Rusinamhodzi believes increasing farmersâ awareness of climate risks and working with them to implement sustainable solutions is key to ensuring they can buffer climate shocks, such as drought and erratic rainfall.
âThe onset of rainfall is starting late and the seasonal dry spells or outright droughts are becoming commonplace,â said Rusinamhodzi. âFarmers need more knowledge and resources on altering planting dates and densities, crop varieties and species, fertilizer regimes and crop rotations to sustainably intensify food production.â
Growing up in Zimbabwe â a country that is now experiencing the impacts of climate change first hand â Rusinamhodzi understands the importance of small-scale agriculture and the damage erratic weather can have on household food security.
He studied soil science and agronomy and began his career as a research associate at the International Center for Tropical Agriculture in Zimbabwe learning how to use conservation agriculture as a sustainable entry point to increase food production.
Conservation agriculture is based on the principles of minimal soil disturbance, permanent soil cover and the use of crop rotation to simultaneously maintain and boost yields, increase profits and protect the environment. It improves soil function and quality, which can improve resilience to climate variability.
It is a sustainable intensification practice, which is aimed at enhancing the productivity of labor, land and capital. Sustainable intensification practices offer the potential to simultaneously address a number of pressing development objectives, unlocking agricultureâs potential to adapt farming systems to climate change and sustainable manage land, soil, nutrient and water resources, while improving food and nutrition.
Tailoring sustainable agriculture to farmers
Smallholder farming systems in Africa are diverse in character and content, although maize is usually the major crop. Within each system, farmers are also diverse in terms of resources and production processes. Biophysically, conditions â such as soil and rainfall â change significantly within short distances.
Given the varying circumstances, conservation agriculture cannot be promoted as rigid or one-size fits all solution as defined by the three principles, said Rusinamhodzi.
The systems agronomist studied for his doctoral at Wageningen University with a special focus on targeting appropriate crop intensification options to selected farming systems in southern Africa. Now, with CIMMYT he works with African farming communities to adapt conservation agriculture to farmersâ specific circumstances to boost their food production.
Rusinamhodziâs focus in the region is to design cropping systems around maize-legume intercropping and conservation agriculture. Intercropping has the added advantage of producing two crops from the same piece of land in a single season; different species such as maize and legumes can increase facilitation and help overcome the negative effects of prolonged dry spells and poor soil quality.
Farmer Elphas Chinyanga inspecting his conservation agriculture plots in Zimbabwe. Photo: Peter Lowe/ CIMMYT
âThe key is to understand the farmers, their resources including the biophysical circumstances and their production systems, and assist in adapting conservation agriculture to local needs,â he said.
Working with CIMMYTâs Sustainable Intensification Program, Rusinamhodzi seeks to understand production constraints and opportunities for increased productivity starting with locally available resources.
Using crop simulation modeling and experimentation, he estimates how the farming system will perform under different conditions and works to formulate a set of options to help farmers. The options can include agroforestry, intercropping, improved varieties resistant to heat and drought, fertilizers and manures along with the principles of conservation agriculture to obtain the best results.
The models are an innovative way assess the success or trade-off farmers could have when adding new processes to their farming system. However, the application of these tools are still limited due to the large amounts of data needed for calibration and the complexity, he added.
Information gathered is shared with farmers in order to offer researched options on how to sustainably boost their food production under their conditions, Rusinamhodzi said.
âMy ultimate goal is to increase farmersâ decision space so that they make choices from an informed position,â he said.
Rusinamhodzi also trains farmers, national governments, non-profit organizations, seed companies and graduate students on the concepts and application of sustainable intensification including advanced analysis to understand system productivity, soil quality, water and nutrient use efficiency and crop pest and disease dynamics.
The paper taps into decades of agricultural research for development conducted by CGIAR research centers to identify the top innovations for climate adaption in agriculture. As world leaders convene for the UN Climate talks in Bonn this week and make a potential decision on agriculture, countries are being encouraged to adopt and advance best practices in their National Adaptation Plans.
Climate change has led to increased incidences of drought, heat and extreme weather events as well as crop pests and diseases, all of which can severely limit the growth of staple crops such as maize, wheat, rice and potato. As the demand for staple crops such as maize is expected to increase by 60 percent by 2050, this poses a grave danger for global food production.
CGIAR Research Centers and Programs have long worked to develop stress tolerant crop varieties that allow smallholder farmers to sustainably increase food security despite climate change. One key example of this work is the Drought Tolerant Maize for Africa project, implemented through the International Maize and Wheat Improvement Center (CIMMYT) and the CGIAR Research Program on Maize (MAIZE) with support from the Bill and Melinda Gates Foundation. From 2010-2016, the project released over 200 stress tolerant maize varieties for smallholder farmers in 13 countries in Africa, which has the potential to generate between $362 million to $590 million over a 7 year period through both yield gains and reduced yield variability.
On-farm trials have found that climate resilient maize varieties yielded up to 20 percent more maize under stress prone conditions, and double in severe stress environments, such as the El Niño event of 2015/16. This can significantly increase household income and food security. A recent study on drought-tolerant maize varieties in Zimbabwe found that climate resilient maize could provide farming families with an additional 9 months of food, or $240 per hectare, in drought-prone regions. Based on these results, drought-resilient crops have been dubbed a Tesla-like innovation for agriculture by Dr. Bruce Campbell, Director of the CGIAR Research Program on Climate Change, Agriculture and Food Security (CCAFS)
The benefits are not limited to Africa aloneâin South Asia, 18 pre-commercial heat tolerant maize hybrids from the Heat Tolerant Maize for Asia (HTMA) have been licensed. Of these, 6 have broad adaptation across agro-ecological zones in South Asia (suggesting they likely possess both heat and drought tolerance) and 12 hybrids had good adaptation to specific mega-environments in Bangladesh, Bhutan, India, Nepal and Pakistan.
To be successful, crop breeding needs to stay several steps ahead of climate change. The paper argues that strengthened breeding systems, using the latest technologies, together with more open international exchange of germplasm, and rapid change in varieties are fundamental components of this adaptation strategy. In addition, strengthened breeding pipelines for climate resilient maize also offer the co-benefit of faster development of maize with pest and disease resistance or enhanced nutrition in addition to tolerance to other stresses. In Malawi, Zambia and Zimbabwe maize varieties are now on the market with both drought tolerance and high pro-vitamin A content, which can prevent blindness in children. Research is currently underway to develop drought and heat tolerant, nutritionally enhanced maize rich in pro-vitamin A and zinc.
CIMMYT, MAIZE and other CGIAR research centers and programs are dedicated to supporting smallholder farmers in climate change adaptation by delivering stress tolerant crop varieties through strengthened breeding systems, cutting-edge technologies and the open exchange of international germplasm. The adaption innovations outlined in this working paper must be considered and supported in the search for a food secure, climate resilient future for all.
For more information on the 10 innovations highlighted in this paper, please click here.
At this year’s UN Climate Talks at COP23 in Bonn, Germany, CIMMYT is highlighting innovations in wheat and maize that can help farmers overcome climate change. Click here to read more stories in this series and follow @CIMMYT on Facebook and Twitter for the latest updates.
Farmer Joyce Mapeto shucks maize after harvesting her crop in in Pindukai village, Shamva district, Zimbabwe. Photo: Peter Lowe/CIMMYT
A new study from scientists with the International Maize and Wheat Improvement Center (CIMMYT) shows that drought tolerant (DT) maize varieties can provide farming families in Zimbabwe an extra 9 months of food at no additional cost. As climate change related weather events such as variable rainfall and drought continue to impact the southern African nation at an increasing rate, these varieties could provide a valuable safety net for farmers and consumers.
The study found that households that grew DT maize were able to harvest 617 kilograms more maize per hectare than households that did not grow DT maize varieties. This translates into $240 per hectare extra income for households that grow DT maize varieties, equivalent to 9 monthsâ worth of additional food security.
As 93 percent of households surveyed grow improved maize varieties using seed purchased from local markets, this shows that by switching to DT varieties local farmers could greatly improve their livelihoods and food security at no additional cost. Currently, only 30 percent of households surveyed grow DT varieties.
Drought susceptible maize variety devastated by drought in Zimbabwe. Photo: Peter Lowe/CIMMYT
Drought is a major limiting factor for maize production and can reduce maize yields by up to nearly 40 percent. In the past 10 years, most farmers in southern Africa have experienced around 1â3 drought years, potentially due to climate change. However, Zimbabwean farmers reported 4â5 years of drought in the past 10 years. Adoption of drought-tolerant maize varieties by farmers is crucial to maintaining food security in the region. Studies have shown that CIMMYT DT maize varieties can increase yields by 40 percent under severe drought conditions compared to local commercial varieties.
The production and productivity of maize in Zimbabwe have been decreasing since the early 1990s, taking the country from its role as a surplus producer of maize to a net food importer. Climate change is contributing significantly to this decline, as Zimbabwe is particularly vulnerable to climate change due to its dependence on rain-fed agriculture. The studyâs authors recommend an increase in the promotion and production of DT maize in order to help reverse this trend and help smallholder farmers in Zimbabwe mitigate the effects of climate change while increasing maize production and yield.
Drought tolerant maize harvested in Zimbabwe. Photo: Peter Lowe/CIMMYT
This research was conducted under the Drought Tolerant Maize for Africa (DTMA) project. Jointly implemented by CIMMYT and the International Institute of Tropical Agriculture (IITA) with funding from the CGIAR Research Program on Maize (MAIZE), the project worked to mitigate drought and other constraints to maize production in sub-Saharan Africa through improved drought-tolerant maize varieties. Millions of farmers in the region benefited from the outputs of this partnership, which included support and training for African seed producers and the promotion of vibrant, competitive seed markets. The project ended in 2015, but DTMA varieties continue to be promoted through the Stress Tolerant Maize for Africa (STMA) project, which will work to develop 70 additional new improved stress-tolerant varieties using innovative modern breeding technologies.
Zimbabwe indicated its intentions to “promote the use of indigenous and scientific knowledge on drought tolerant crop types and varieties” as part of a national action plan on climate change submitted to the UN ahead of the Paris climate talks in 2015. As the next round of climate change negotiations gear up in Bonn this November, negotiators will need to decide how to support countries to take action on agriculture, a decision which was postponed at the May negotiations.
At this year’s UN Climate Talks, CIMMYT is highlighting innovations in wheat and maize that can help farmers overcome climate change. Follow @CIMMYT on Twitter and Facebook for the latest updates.
CIMMYT maize breeder Thokozile Ndhlela (left, and farmer Otilia Chirova of Mutoko district in Mashonaland East province, identifying the fall armyworm in Chirovaâs field in February. Chirova eventually lost almost half of her entire maize crop. Photo: J. Siamachira/CIMMYT.
HARARE, Zimbabwe (CIMMYT) — Smallholder farmers in Zimbabweâs rural areas have grown maize for years both as a staple and as a resource to boost their economy.
However, Zimbabwean farmers rely predominately on rain-fed maize farming, making each planting season a gamble with nature as poor rainfall, pests and diseases constantly threaten this staple crop and farmer livelihoods.
As most smallholders tried to recover from the El Niño-induced drought in southern Africa, affecting 40 million people during the 2015-2016 farming season, according to the Food and Agriculture Organization (FAO) of the United Nations, nothing could have prepared them for the sudden invasion of the fall armyworm in September 2016 that caused irreversible damage on their maize crop.
âWe first noticed it in December 2016,â said Elizabeth Chikono, a smallholder farmer from Mashonaland Central Province, whose maize crop was heavily infested by the fall armyworm. âWe tried to control it through spraying with different pesticides, but to no avail. I had hoped to harvest 10 tons per hectare of maize, but only managed to harvest three tons.â
The fall armyworm has since caused significant damage on over 280,000 hectares of maize in Malawi, Namibia, South Africa, Zambia and Zimbabwe, and can cause up to 70 percent crop loss, or total loss in some cases if unmanaged, says FAO. The level of damage witnessed in the fields is likely to affect maize harvests across the region, which is expected to create more than 200 million food-insecure people who depend on maize for food, said Chimimba Phiri, head of FAO southern Africa sub-regional office.
It has so far been impossible to eradicate the pest, which is known to migrate quickly and breed quite fast, with an entire life cycle between 35 and 61 days.
Zimbabwe established a fall armyworm working group in July this year to bring all stakeholders together and find solutions to manage the impacts of the pest in the country.
Forty-five people representing government ministries, non-governmental organizations, private seed and chemical companies, agricultural research institutions, donors and academic institutions, recently resolved at a meeting to advocate a countrywide response as part of a regional program of integrated management of the fall armyworm. The group recommended strengthening awareness campaigns, building stakeholdersâ capacity in the fight against the fall armyworm, raising funds, strengthening research and development as well as screening of germplasm.
Smallholder farmer Perkins Chimuriwo of Mashonaland East province inspects the fall army worm damage to his maize crop in March. âI had expected to harvest 14 tons of maize on my two-hectare plot, but due to the fall armyworm, Iâve only harvested eight tons,â said Chimuriwo. Photo: J. Siamachira/CIMMYT.
These recommendations have culminated in a new strategy to undertake national assessments to determine the impact of the pest on crop yields and how to manage it.
The FAO is also working to equip southern African countries with the tools to asses and improve understanding of the fall armywormâs threat to the region.
âThe International Maize and Wheat Improvement Center (CIMMYT) will pull its germplasm resources as well as modern breeding platforms to produce maize varieties that are tolerant to fall armyworm,â said Cosmos Magorokosho, CIMMYT country representative for Zimbabwe. Similar efforts have been used by CIMMYT in the past to tackle the effects of Maize Lethal Necrosis in eastern Africa.
However, breeding for fall armyworm resistant elite maize hybrids adapted to sub-Saharan Africa is a lengthy process and would require intensive germplasm screening, working with public and private sector institutions.
To reduce the numbers of fall armyworms and their impact on agricultural production in Zimbabwe, a multi-pronged approach is required that ensures fast registration of appropriate chemicals, strategies to avoid chemical resistance, surveillance and early warning, monitoring, cultural management and breeding.
Acting head of plant protection at the government of Zimbabweâs Department of Research and Specialist Services, Shingirayi Nyamutukwa, said the government had started training field extension staff on proper selection and handling of chemicals as well as raising awareness among the staff and smallholder farmers. Experiments were also underway to determine the best fall armyworm control methods. Nyamutukwa said all of Zimbabweâs 10 provinces had been affected by the caterpillar. He said that no single method or product has been found to completely eradicate the fall armyworm.
Breeding for fall armyworm resistant elite maize hybrids adapted to sub-Saharan Africa was cited as an option but would require intensive germplasm screening, working with public and private sector institutions. Brazil, for example, spends an estimated US$600 million annually to control the fall armyworm.
Artificial inoculation of maize germplasm at the Naivasha MLN screening site, Kenya. (Photo: B.Wawa/CIMMYT)
The new maize lethal necrosis (MLN) online portal provides up-to-date information and surveillance tools to help researchers control and stop the spread of the deadly disease.
MLN was first reported in Kenya in 2011 and has since then been reported in several countries in eastern Africa, especially the Democratic Republic of the Congo, Ethiopia, Kenya, Rwanda, Tanzania and Uganda. The disease kills plants before they can grow, and the pathogens are transmitted by insects or contaminated seed. Serious damage to the regionâs maize production from MLN has impacted household food security.
The online portal, found at mln.cimmyt.org, details the spread of MLN, where the disease has been managed and controlled, and how to identify it in the field. It also provides key MLN publications, surveillance software, MLN incidence maps, information on the MLN Screening Facility, and MLN-tolerant hybrids that are either released or in pipeline.
One tool on the portal is the MLN surveillance and monitoring system that provides real-time data to identify the presence and spread of the disease across five endemic countries in eastern Africa, and three selected non-endemic countries in southern Africa. The system was developed by scientists collaborating with the International Maize and Wheat Improvement Center (CIMMYT), with support from the United States Agency for International Development (USAID).
In 2016, MLN surveillance was successfully conducted in Malawi, Zambia and Zimbabwe â three major seed producing countries in Africa â and the data is presented in the portal, detailing MLNâs status across 652 surveyed maize fields. Future data gathered in other affected countries will also be uploaded to the portal as surveillance teams conduct fieldwork using Global Positioning System online survey tools, to assess the spread and severity of the disease in these countries. Ongoing surveillance in endemic countries allows stakeholders to see real-time updates on the spread of MLN.
MLN susceptible hybrids compared to a CIMMYT-derived MLN-tolerant hybrid. Photo: CIMMYT
Since the disease was first reported, collaborative efforts have resulted in the establishment of a MLN Screening Facility at the Kenya Agricultural & Livestock Research Organization (KALRO) center at Naivasha in 2013. The facility, managed by CIMMYT, has so far screened nearly 100,000 maize germplasm entries — 56 percent from CIMMYT — against MLN under artificial inoculation over the last four years.
Nine CIMMYT-derived MLN-tolerant hybrids have been already released in three countries â seven in Kenya, one in Uganda and one in Tanzania. Eleven second generation hybrids are currently in national performance trials in these countries. Intensive efforts are currently being made by seed companies in Kenya, Tanzania and Uganda to expand the delivery of MLN-tolerant maize seed to the smallholders.
The MLN portal enables researchers to comprehensively assess the situation with regard to MLN, helps strengthen the national disease monitoring and diagnostic systems by providing faster and accurate data, and offers access to CIMMYT-offered MLN phenotyping services.
Mary Sikirwayi of Murewa District in Zimbabwe showing her orange maize cobs in the field. Photo: R. Lunduka/CIMMYT.
HARARE, Zimbabwe (CIMMYT) â More farmers in Zimbabwe are demanding high-yielding, highly nutritious and drought tolerant provitamin A maize.
In Zimbabwe, nearly one in every five children under the age of five years are vitamin A deficient. These deficiencies can lead to lower IQ, stunting and blindness in children, and increased susceptibility to disease across all ages. While vitamin A is available from a variety of sources, such as fruit, green leafy vegetables and animal products, these are often too expensive or unavailable to the more than 10 million people living in Zimbabweâs rural areas.
Zimbabweâs ZS242 â an orange provitamin A maize variety released on the market by the government in October 2015 â is particularly popular with farmers due to its nice aroma and good taste. Â Consuming foods made from orange maize, which is rich in beta-carotene, can provide maize-dependent populations with up to half their daily vitamin A needs, according to HarvestPlus.
Orange vitamin A maize has been conventionally bred to provide higher levels of provitamin A carotenoids, a naturally occurring plant pigment also found in many orange foods such as mangoes, carrots and pumpkins, that the body then converts into vitamin A.
These varieties are also high-yielding, disease resistant and drought tolerant, presenting an opportunity for farmers to not only increase yields but also enhance the availability of vitamins and minerals for people whose diets are dominated by micronutrient-poor staple food crops.
Mary Sikirwayi, a farmer from Murewa District, Zimbabwe, bought provitamin orange maize seed during a seed fair organized by the International Maize and Wheat Improvement Center (CIMMYT), in collaboration with the Technical Centre for Agricultural and Rural Cooperation.
The maize grew and matured so fast that by the time her family wanted to try the fresh cobs for cooking and roasting, they had already started to dry. After harvesting the grain, she decided to make sadza, a porridge-like staple food consumed in Zimbabwe. When her family ate the sadza, everyone was so excited about the good taste and flavor of the food.
In addition to the good taste of the sadza from the provitamin A maize, Sikirwayi said the yield from the orange maize is more than five times higher than the national maize average yield. In the coming year, she plans to double the planted area of orange maize, due to its high demand both on the market and in her household.
CIMMYT and HarvestPlus have been working with Zimbabweâs Department of Research and Specialist Services, Ministry of Health and Child Care, universities, seed companies, processors, retailers and the Food and Agriculture Organization of the United Nations, to demonstrate the benefits of orange maize since 2012. The Zimbabwe government has expressed strong support for enriching the micronutrient content of plants and other crops, including maize.
CIMMYT Director General, Martin Kropff delivers keynote address on âClimate smart resilient systems for Africa.â Photo: J. Siamachira/CIMMYT.
HARARE, Zimbabwe (CIMMYT) â Delegates at a conference in June called for a new focus and increase in investment to ensure eastern and southern Africaâs farming systems can withstand the impacts of climate change.
Africa is likely to be the continent most vulnerable to climate change, according to the UN Framework Convention on Climate Change. Smallholders produce around 80 percent of all food in sub-Saharan Africa, and rely primarily on rainfall for irrigation â a source that is becoming scarcer and unpredictable under climate change. Farming is also often practiced in marginal areas like flood plains or hillsides, where increasing and more intense weather shocks cause severe damage to soil and crops.
Tanzaniaâs Minister for Agriculture, Food Security and Cooperatives Charles Tizeba said during a conference on the future of the Sustainable Intensification of Maize-Legume Based Cropping Systems for Food Security in Eastern and Southern Africa (SIMLESA) project, an initiative led by the International Maize and Wheat Improvement Center (CIMMYT) and funded by the Australian Centre for International Agricultural Research (ACIAR), that a paradigm shift in agricultural development is needed to enable smallholder farmers, especially those in rural areas, to produce enough to feed themselves and to sell.
Sustainable agricultural practices, improved seed varieties, use of fertilizers and better infrastructure are all technologies and practices that have been successfully tested by SIMLESA and have the potential to be expanded across the region, said Tizeba. He also called on governments in eastern and southern Africa to develop agricultural agendas based on farmer needs and opportunities SIMLESA identified through the projectâs research efforts.
Over 100 people representing different governments, research institutions, development agencies and the private sector gathered in Tanzania to participate in the taking stock on sustainable intensification research for impact in eastern and southern Africa conference. Since 2010, SIMLESA has successfully tested locally-adapted sustainable farming systems throughout eastern and southern Africa. The project began its second phase in July 2014 and will focus on expanding climate-resilient technologies and practices throughout the region.
Delegates of the SIMLESA Sustainable Intensification Conference in Arusha, Tanzania. Photo: J. Siamachira/CIMMYT
To date, a total of 268 and 378 maize and legume on-farm participatory variety selections were conducted by SIMLESA, where best performing maize and legume varieties that met farmer preferences were selected and scaled up by partner seed companies. The project has influenced over 235,000 farmers who adopted at least one sustainable intensification technology or practice.
CIMMYT Director General Martin Kropff called for the adoption of âclimate-smart agricultureâ that will make crops more resilient to continuing extreme weather events.
âFor our farmers to be productive and ensure food security, we need to build resilience to climate changeâŠwe need to invest in new agricultural innovation now,â said Kropff.
Andrew Campbell, ACIAR chief executive officer, said climate change has already had a powerful negative effect on agriculture and food security for the worldâs most vulnerable, and that these effects will become even worse in the future.
âItâs critical to integrate research into development initiatives,â said Campbell. âIn this regard, SIMLESAâs work, in partnership with national agricultural research systems, becomes even more critical.â
At the project level, SIMLESA will aim to scale its sustainable intensification technologies to 650,000 farm households by 2023 in eight target countries through different partnership arrangements.
Many of the speakers at last weekâs event said smallholder farmers must be part of discussions on climate change and food security as they are often among those most touched by the impacts of climate change, and they play an integral role in global agriculture systems.
To achieve the best results, SIMLESA will channel its experiences and lessons learned since its inception in 2010 and scale out its work through shared analysis, common research questions and learning through the monitoring, evaluation and learning portfolio, communications and knowledge sharing and a lean project management structure.
SIMLESAâs positive assessment of conservation agriculture-based sustainable intensification in the region suggests that policies that strengthen national and local institutions, build infrastructure for sustainable farming, improve financial investment in agriculture and increase access for innovative private investors, play a key role in alleviating poverty and food insecurity in the region.
The Sustainable Intensification of Maize-Legume Based Cropping Systems for Food Security in Eastern and Southern Africa (SIMLESA) project was launched in 2010. Funded by the Australian Centre for International Agricultural Research (ACIAR), SIMLESA aims to improve the livelihoods of smallholder farming communities in Africa through productive and sustainable maizeâlegume systems and risk management strategies that conserve natural resources. It is managed by CIMMYT and implemented by partners in Ethiopia, Kenya, Malawi, Mozambique and Tanzania.Â
The recent appearance of the fall armyworm, an insect-pest that causes damage to more than 80 crop species in 14 countries in sub-Saharan Africa, poses a serious challenge and significant risk to the regionâs food security.
In a recent interview, B.M. Prasanna, director of the Global Maize Program at International Maize and Wheat Improvement Center (CIMMYT) and the CGIAR Research Program on MAIZE, who is working at the forefront of CGIARâs response, highlights the potential impact of the pest and how CGIAR researchers are contributing to a quick and coordinated response across the region.
Q: What is the fall armyworm and why is it so destructive? Â
The fall armyworm (Spodoptera frugiperda) is an insect-pest which causes major damage to more than 80 crop species, including economically important crops, such as maize, rice, sorghum, wheat, sugarcane, several other vegetable crops and cotton.
It was first officially reported in Nigeria in early 2016 and has been officially confirmed in 11 and suspected in at least 14 other African countries, as of April 2017.
Q: What are the potential impacts of the pest in sub-Saharan Africa?
The fall armyworm poses a serious challenge and a significant, ongoing risk to Africaâs food security.
The pestâs ability to feed on a range of crop species means that smallholder farming systems in Africa, which are based on intercropping, are particularly vulnerable. Also, the rapid damage and migratory capacity of the pest, combined with its capacity to reproduce quickly in the right environmental conditions and its ability to rapidly evolve resistance to synthetic pesticides increase the regionâs vulnerability.
In sub-Saharan Africa, where fall armyworm is currently devastating maize crops, estimates indicate 13.5 million tons of maize valued at $3 billion are at risk in 2017-2018, which is equivalent to over 20 percent of total production for the region (based on data from CABI, April 2017).
Q: What are the key challenges that countries in sub-Saharan Africa will face?
There is no doubt that smallholder farmers, particularly maize farmers, in sub-Saharan Africa will face a significant and ongoing risk from the fall armyworm. In particular, resource-poor smallholders will be severely affected due to their inability to control the pest using synthetic pesticides, currently the only way to effectively respond, which are very costly.
Q: What are three ways that countries in sub-Saharan African can strengthen resilience of food and agricultural systems to the potential effects of Fall Armyworm?
Working groups need to be established quickly to develop and implement strategies to respond to the issue. Â In particular, we need to develop a comprehensive, regional response centered on: Monitoring and early warning; Social and economic assessments of impacts, and forecasting; Integrated Pest Management (IPM); Development and dissemination of low-cost, effective and sustainable solutions and development of appropriate regulatory tools and policies to support the response.
As this process unfolds, gaps, challenges and successes will need to be documented to inform capacity-building needs with a focus on understanding the capacity of individual countries to respond. While fall armyworm outbreaks across Africa is an emergency situation, it should also be an opportunity to review and understand regional food production and food security issues and as an opportunity to improve on systematic approaches to build capacity to prevent and respond to future threats of transboundary pests and pathogens in Africa.
Strong coordination across different levels of government is required: âpolitical coordinationâ (among the local governments, NPPOs, and sub-regional organizations), and âtechnical coordinationâ (fast-tracked testing and deployment of relevant technologies).
Q: What role do CIMMYT and CGIAR have in building capacity in the regionâs ability to respond to Fall Armyworm?
CGIAR institutions, including CIMMYT and the International Institute of Tropical Agriculture (IITA), have significant strengths in building the regionâs ability to respond to trans-boundary pathogens (e.g., previous examples include Maize Lethal Necrosis, wheat rust and insect-pests, such as fall armyworm.
Specific examples of CGIAR/CIMMYT expertise that will be important in the fall armyworm response include:
Development and dissemination of crowd-source based tools and digital surveillance systems and analysis of the data collected across countries for a strong monitoring and early warning system.
Systematic and large-scale assessment of the present and potential socio-economic impact of fall armyworm in Africa, and the development of forecasting tools to understand potential losses
Review of the efficacy of different fall armyworm management options (learning from experiences of the United States, Brazil and Mexico), and adapting this information to the African context
Determining the efficacy of cultural control options against fall armyworm, including early versus late planting of crops like maize, handpicking, soil and habitat management, crop hygiene, etc.
Evaluating the impacts on-going integrated pest management (IPM) initiatives and the impacts of the fall armyworm invasion on the effectiveness of these interventions
Developing and implementing appropriate insect resistance monitoring and management strategy in fall armyworm affected countries
Analysis of the effects of conservation agriculture on fall armyworm management and the influence of fall armyworm incidence on diverse cropping systems
Testing and introgression of conventionally-derived resistance (from identified CIMMYT and U.S. Department of Agriculture-Agricultural Research Service [USDA-ARS] germplasm sources) into Africa-adapted maize germplasm, followed by fast-tracked varietal release, seed scale-up and delivery of improved maize hybrids/varieties through public-private partnerships (e.g., MLN is a great example of this).
Developing a âFall Armyworm Information Portalâ, similar to the MLN Information Portal and Wheat Rust Tracker (led by CIMMYT), as a one-stop portal for relevant information.
Q: CIMMYT recently co-hosted an emergency meeting on the strategy for effective management of fall armyworm in Africa. What were the key outcomes and next steps for the response to this issue?
The emergency meeting was an opportunity to assess the present and potential damage due to fall armyworm and to devise a holistic control strategy.
CIMMYT, Alliance for a Green Revolution in Africa (AGRA) and the U.N. Food and Agriculture Organization (FAO) jointly hosted a Stakeholders Consultation Meeting in Nairobi, Kenya (April 27-28, 2017). About 150 experts and stakeholders from 24 countries in Africa, and five outside Africa (Italy, Spain, Switzerland, Britain and the United States) participated, with participants from government, national plant protection agency, national agricultural research systems in Africa, as well as scientists from international agricultural research organizations, and representatives of service providers, non-governmental organizations, development partners, donor agencies and the media.
Discussions covered the present status of the pest in Africa as well as contingency plans to manage the pest, assessment of current control options being used. Experts from the U.S. and U.K. provided expertise and insight on the response to fall armyworm in the U.S. and Brazil.
Action points and recommendations on four key areas were developed to ensure an effective, coordinated response:
Contingency planning and awareness generation;
Fall armyworm monitoring and early warning;
Socio-economic impact assessments and modeling of potential losses;
Development and Dissemination of fall armyworm management options;
Coordination of Institutional Interventions for fall armyworm management in Africa.
FAO is expected to convene a regional workshop in early June to engage and coordinate with relevant regional organizations who will be involved in the response.
As climate change threatens to increase the incidence of plant pests and diseases, action must be taken to protect smallholder farmers and global food security.
At this yearâs UN Climate Talks, CIMMYT is highlighting innovations in wheat and maize that can help farmers overcome climate change. Follow @CIMMYT on Twitter and Facebook for the latest updates.
An aerial view of the MLN quarantine facility in Zimbabwe. Photo: Mainassara Zaman-Allah/CIMMYT
HARARE, Zimbabwe â The maize lethal necrosis (MLN) quarantine facility in southern Africa was officially opened in Zimbabwe on April 20, 2017 to enable safe introduction and exchange of novel maize germplasm from CIMMYT to partners in southern Africa.
Set up by the International Maize and Wheat Improvement Center (CIMMYT), with the approval of the government of Zimbabwe, the work for establishing the facility at the Plant Quarantine Station at Mazowe, outside Zimbabweâs capital Harare, was initiated in the last quarter of 2015. Â The five hectare MLN quarantine facility funded by the United States Agency for International Development, is the first of its kind in southern Africa and will be used to safely import elite maize breeding materials from CIMMYT to southern Africa.
MLN is a devastating disease that causes huge economic losses if it occurs, particularly for smallholder farmers who frequently do not have means to control it. MLN was first detected in Kenya in 2011, and has since been reported in Democratic Republic of the Congo, Ethiopia, Rwanda, Tanzania, and Uganda. It is caused by a double infection of maize plants by two viruses: the maize chlorotic mottle virus and the sugarcane mosaic virus. Severe infestation can result in total yield loss. MLN-causing viruses are transmitted not only by insect vectors, but also by seed. There is an urgent need to prevent the deadly disease from moving further south.
The MLN quarantine facility is now functional. To date, over two hectares of land have been planted successfully with maize breeding materials imported from Kenya for the purpose of proactively breeding for MLN while at the same time preventing movement of the disease from endemic areas. Personnel have been trained to safely conduct activities at the site. The facility operates under strict quarantine regulations and is closely monitored and approved by Zimbabweâs Plant Quarantine Services to ensure that the maize materials introduced are MLN-free.
âThis modern quarantine facility is expected to uphold safety when importing maize breeding materials to southern Africa, and to facilitate local and regional institutions to proactively breed for resistance against the MLN disease,â said Zimbabweâs Minister for Agriculture, Mechanization and Irrigation Development, Joseph Made, while officially opening the facility.
Dr Made also said “I am confident that the quarantine facility will play a significant role in curbing the spread of MLN, while at the same time facilitating on-going work of developing new maize varieties that are resistant to the disease.”
âThis MLN quarantine facility, and the collaborative efforts between institutions of the government of Zimbabwe, especially the Department of Research and Specialist Services (DR&SS) and CIMMYT-Southern Africa Regional Office, are key to prevent the possible spread of MLN in southern Africa, and to develop and deploy elite maize varieties with MLN resistance and other farmer-preferred traits,” said B.M. Prasanna, Director of the CIMMYT Global Maize Program and CGIAR Research Program MAIZE, while speaking at the same occasion.
CIMMYT Global Maize Program Director and CGIAR Research Program MAIZE Director B.M. Prasanna, shakes hands with Zimbabweâs Minister for Agriculture, Joseph Made, after the official opening of the MLN quarantine facility. Photo: Johnson Siamachira/CIMMYT.
CIMMYT and the government of Zimbabwe have so far conducted two nation-wide MLN surveys. In the first, no incidence of MLN was recorded. Results of the second survey are still being assessed. To strengthen the phytosanitary work at this MLN quarantine facility, CIMMYT will also offer capacity building to DR&SS researchers through trainings, technical assistance, and advisory services.
MLN is a reality that cannot be ignored. Partners have to work together to control its spread through finding practical solutions to tackle this complex challenge, including strengthening MLN disease diagnostic and surveillance capacity. In addition, intensive inter-institutional efforts to develop and deploy improved maize varieties that incorporate MLN resistance should be continued. The commercial seed sector must also play a key role by producing and delivering MLN-free healthy seed to farmers.
Until seed companies in the MLN-endemic countries have produced 100 percent MLN-free, clean commercial seed, and have necessary certification from the national plant protection offices, the potential risk of MLN entering southern Africa and the consequent damage to maize producers from significantly outweighs the benefits of commercial seed trade.
MLN can only be effectively prevented and tackled through concerted inter-institutional and multi-disciplinary action. The key actions include: enforcement of synchronized maize plantings and a maize-free period of at least three to four months in a year in severely affected areas; creation of an extension corps specifically dedicated to creating awareness on MLN management among the farming communities and monitoring and implementation of standard operating procedures for production of MLN-free clean seed at various points along the seed value chain, to be used by all players in the seed industry.
CIMMYT developed and released, through national partners in eastern Africa, nine MLN-tolerant maize hybrids in the last three years. Four among these hybrids are already being seed scaled-up and commercialized by seed company partners in Uganda, Kenya and Tanzania. As many as 19 MLN-tolerant hybrids are under national performance trials in eastern Africa.
EL BATAN, Mexico (CIMMYT) â Small-scale agricultural mechanization is showing signs it has the potential to fuel rural employment for youth in sub-Saharan Africa, according to researchers at the International Maize and Wheat Improvement Center (CIMMYT).
âSmall-scale mechanization is more equitable than other forms of mechanization as even the poorest and most vulnerable have access to it,â he said.
Youth, along with women, are typically subject to labor intensive farm activities causing them to shun agriculture. But with mechanization improving productivity while reducing drudgery, youth are seeing economic opportunity in agribusiness, on rural farms and as service providers, said Rabe Yahaya, a CIM/GIZ integrated expert specialized in mechanization for sustainable agriculture intensification.
As a result, new jobs along the value chain from mechanics to spare parts providers have been created, he added.
Relatively cheap and easy to operate two-wheel tractors can be used for many different applications. On-farm, the tractors are used to speed up crop establishment while conserving soils through reduced tillage and precision fertilizer application. They allow farmers to tap into surface water for irrigation as well as aid shelling grain to reduce the time taken to get to market. The machinery has also been used to start rural commercial hire and transport services.
24-year-old Beyene Abebe from Ethiopia is one youth benefiting from mechanization. Through CIMMYT managed training, Abebe has developed the skills needed to become a mechanization service provider. He now provides transportation services for an average of 200 households annually and ploughing services for 40 farmers in his village using two-wheel tractors. With the income from his service, Abebe can cover his familyâs expenses and he bought farmland with his savings.
National government support for training and innovation is key to bolster agricultural mechanization throughout Africa, said Baudron. By creating a conductive business environment to attract private sector actors, governments can grease the wheels to scale out success.
Both Yahaya and Baudron shared some insights on the opportunities agricultural mechanization can provide rural communities in the following interview.
Q: Why is it important that agricultural research for development targets youth in rural areas?
RY: A growing population and diet change is increasing food demand in Africa, however, the amount of arable land is decreasing. This affects rural areas, where agriculture remains the main source of income and livelihood. Agriculture in the way it is currently practiced in rural areas is no longer attractive to the new generation of youth as it is labor intensive, rudimentary, risky, unproductive and does not support a good livelihood.
In addition, only 2 percent of Africaâs youth are undertaking agricultural curriculum at the university level. Despite young Africans being more literate than their parents, they suffer from increased unemployment. Agriculture could be the solution in tackling youth unemployment in rural areas, therefore providing peace, stability and food security.
FB: Youth unemployment is growing. Agriculture is perceived as a sector that can absorb much of this unemployment, particularly when combined with entrepreneurship.
In my view, an important issue when tackling issues of sustainable development as opposed to simply âdevelopment,â is the issue of equity. We must ensure that the largest amount of people benefit from our interventions. Rural youth represent a large proportion of the vulnerable households in the areas where we work, because they lack capital and other resources, similar to women-headed households.
Q: How is mechanization creating new rural opportunities for youth and women?
RY: In many societies, youth and women are unequally disadvantaged and perform the most labor intensive agricultural activities such as plowing, sowing, weeding, harvesting, shelling, water pumping, threshing and transportation with very rudimentary implements using human and animal power. Therefore, increasing the use of engine power in agriculture will free youth and women from production drudgery discrepancies and most importantly increase farm productivity and consequently improve income generation if an organized value chain exists with a strong private sector involvement.
FB: Mechanization creates rural employment. It creates work for service provider jobs and it also stimulates other businesses along the mechanization value chains. Once demand for mechanization is established, employment opportunities grow for mechanics, fuel providers, savings and loans associations, spare part dealers, etc.
Q: What lessons are there to aid youth to be successful mechanization service providers?
RY: Training in mechanical, agronomic and business skills. Again training and constant follow up is key in order not only to produce successful youth mechanization service provider, but to ensure their continued success. In addition, infrastructure, aftersales — service and spare parts dealerships and financial schemes, promote the adoption of mechanization and support the development of value chain markets are crucial to success.
And remember whatever the technology may be, the farmer has to be able to earn money from it, otherwise they will not use it!
FB: Youth also tend to be better at managing modern technologies. We found consistently, in all countries where we work, that being a successful service provider is highly correlated to be a member of the youth. However, other factors are also important such as being entrepreneurial, educated, able to contribute to the cost of the machinery, and preferably having an experience in similar businesses and particularly in mechanics
Working with CIMMYTâs Farm Mechanization and Conservation Agriculture for Sustainable Intensification (FACASI) project, researchers have sought to promote the delivery and adoption of small-scale machines to make farming practices â including planting, harvesting, water pumping, shelling and transporting â more productive and sustainable in eastern and southern Africa. Funded by the Australian Center for International Agricultural Research, FACASI offers support throughout the supply chain, from importers to manufacturers, service providers and extension workers to ensure mechanization reaches farmers.
CIMMYTâs mechanization team has ongoing collaboration with GIZ/BMZ green innovation center in Ethiopia and works in Namibia with GIZ to provide knowledge, expertise and capacity building on conservation agriculture.
A farmer dries maize on his rooftop in Zimbabwe. CIMMYT/ F. Sipalla
EL BATAN, Mexico (CIMMYT) â A comprehensive study of genetic gains resulting from long term breeding work on improved hybrids and open-pollinated varieties (OPVs) in eastern and southern Africa shows that with appropriate funding, maize yields can continue to increase in extreme heat and drought conditions.
Investments into maize breeding and seed systems must expand to keep up with the capacity to withstand climate variability in the region, said Jill Cairns, one of the authors of the study, emphasizing that maize breeding is on track to meet the challenges of climate change in Africa.
The region is currently experiencing large climate variability, including the 2014-2015 drought; the 2015-2016 El Nino and severe drought and flooding in 2016-2017.
âWe see evidence that increased investment works,â said Cairns, a maize physiologist with the International Maize and Wheat Improvement Center (CIMMYT) in Zimbabwe. âAlthough our breeding work has led to higher genetic gains, yields remain lower, reflecting smaller research investments over time. On the other hand, in countries like the United States and China, which have become the top two maize producers worldwide, we see the beneficial impact of steady investments.â
Varieties released by CIMMYTâs partners in sub-Saharan Africa between the years 2000 and 2010, showed that genetic gains for yields made through this improved maize germplasm compare favorably with similar studies in other regions in better growing conditions — in China and the United States, for example.
On average, under optimal conditions, CIMMYT maize breeders increased yields by 109 kilograms per hectare per year, under managed drought conditions, 33 kilograms per hectare per year and under random drought conditions, 23 kilograms per hectare per year. By comparison, in China, under optimal conditions, gains were estimated at 95 kilograms per hectare per year and in the United States, 65 to 75 kilograms per hectare per year.
âBreeding is a long term investment but it ultimately pays off through improved varieties for smallholder farmers,â said Jill Cairns, a maize physiologist with CIMMYT in Zimbabwe, describing the impact of the breeding program in sub-Saharan Africa, which has been underway for more than 30 years.
âWeâre constantly changing the breeding pipeline to ensure that the genetic gains are continuously increased,â she added. âGains are illustrated by sustained increases in grain yield over time. In fact, we expect to see a higher genetic gain through the more recent hybrids developed by CIMMYT maize breeding team than those reported in the study undertaken on hybrids released between 2000 and 2010 because weâve added a lot of new tools and we are incorporating many new technologies to further increase gains.â
The study confirmed that the lowest genetic gains occurred under low nitrogen conditions where little fertilizer was used, Cairns said, emphasizing the importance of increasing the potential for genetic gains to boost grain yields in areas with poor soil fertility throughout the region.
Scientists working with the CIMMYT maize breeding program primarily focus on developing hybrids, which result from the deliberate crossing of genetically diverse inbred lines that exhibit a wide variety of traits that are relevant for smallholders in the tropics.
Improved OPVs were developed at CIMMYT, using selected sets of inbred lines to reflect traits of the parental lines. Â In general, genetic gains in the OPVs released during the period under review were found to be higher than for the hybrids, although grain yields in the hybrids were certainly higher.
Resource-poor farmers in some African countries tend to use drought-tolerant improved OPVs, especially where the maize seed sector is weak or improved hybrid seeds are unavailable or unaffordable.
âAccessing hybrid seeds can be a real challenge for resource-poor, smallholder farmers in some areas,â Cairns said. âHybrids also pose a conundrum for farmers in extremely drought-prone areas, where the tendency is to minimize the risk by using low-cost improved OPVs rather than investing in relatively higher-cost hybrid seeds.â
Yield gain in the CIMMYT-derived hybrids in eastern and southern Africa during the study period is comparable with gains reported in the United States and China. However, absolute yields in the region are still lower, reflecting the opportunity to further improve the yield potential of tropical maize, including in stress-prone environments.
Additionally, maize yields in sub-Saharan Africa, where maize accounts for 50 percent of cereal production in over 50 percent of countries, are still the lowest in the world. Â National maize yields in 30 countries in the region remain much lower than yields were in the U.S. Corn Belt in 1926 before hybrids were introduced!
Since the CIMMYT breeding program started in Zimbabwe in 1985 (part of the southern Africa region where maize accounts for 45 percent of calories and 43 percent of protein from cereals consumed), scientists have focused on increasing drought tolerance, among other important traits. Currently, the Stress Tolerant Maize for Africa (STMA) project operates in 11 countries across sub-Saharan Africa.
Continual evaluation is a critical component of crop improvement, according to scientists.
âQuantifying genetic gain each year is an integral part of our product development process,â said B.M. Prasanna, director of CIMMYTâs Global Maize Program, and the CGIAR Research Program MAIZE. âThis enables us to measure the progress being made, and to make necessary adjustments for continuous improvement of the performance of our products in the target agro-ecologies we serve.â
The research benefits are far-reaching.
In these two first-ever reviews evaluating genetic gains through CIMMYTâs maize breeding program in eastern and southern Africa, we get a clear understanding of benefits and impact of improved maize hybrids and OPVs released during 2000 to 2010, said Marianne BĂ€nziger, who previously led the CIMMYT maize program, and is now deputy director general of research and partnerships at the organization.
âUse of improved seed has been increasing in sub-Saharan Africa and greater uptake is mostly a question of where the seed sector reaches,â BĂ€nziger said. âThe issue of variety replacement is complex. Working with governments and seed companies is a key part of our role.â
The dissemination and adoption of drought tolerant maize could generate as much as $590 million for farmers over a seven-year period, Cairns said. âAs we take stock of the important role our work has played in this impoverished and environmentally harsh region, weâre grateful for the vital funding we receive from various agencies, especially the Bill & Melinda Gates Foundation, the U.S. Agency for International Development, and the CGIAR research program MAIZE.â
CIMMYT doctoral student and ETH ZĂŒrich graduate Stephanie Cheesman has won the 2017 Hans Vontobel-Preis. Photo: S. Cheesman
MEXICO CITY (CIMMYT) â CIMMYT doctoral student and ETH ZĂŒrich graduate Stephanie Cheesman has won the 2017 Hans Vontobel-Preis.
This ETH prize awards 5,000 Swiss Francs ($4,988) annually to the student with the most outstanding thesis in Agricultural Science. The prize is financed by a private fund set up in 1994 by the late banking doyen Hans Vontobel.
The thesis investigated the effects of conservation agriculture (CA) on maize yields and soil carbon stocks, as well as other plant nutrient stocks in the soil. It is based on data collected on 125 on-farm research sites CIMMYT had established between 2004 and 2009 in Malawi, Mozambique, Zambia and Zimbabwe.
The results showed that yields could quickly increase with CA, whereas soil carbon stocks showed â after up to only seven years of CA practice â limited response under the prevailing conditions of Zimbabwe. Farmers also generally adapt CA systems to their conditions rather than adopt the system, due to the fact that there are many more factors besides improved yields â such as preferences in crops grown, availability of inputs and access to other sources of income â that influence why a farmer adopts a technique.
Cheesman discusses with farmer what data he should be recording from his demonstration field. Photo: Pietro Bomio
The award panel consisted of Maja Baumann, granddaughter of Vontobel, Bruno Studer, professor and chair of the molecular plant breeding group at ETH ZĂŒrich and Sarah Springman, professor and rector of ETH ZĂŒrich.
Baumann cited Cheesmanâs valuable hard data about conservation agriculture â a topic that has been strongly debated in recent years â and contribution to sustainable agriculture as main reasons for her selection. Further the jury appreciated that the thesis investigated both biophysical and socio-economic aspects, allowing for a better understanding of conservation agricultureâs impact.
Cheesman completed her thesis under the supervision of Emmanuel Frossard, professor at ETH ZĂŒrich, CIMMYT Senior Cropping Systems Agronomist Christian Thierfelder and Neal Eash, professor at the University of Tennessee. Professor Johan Six from ETH ZĂŒrich evaluated the work as external examiner.
âStephanie Cheesmanâs collaborative project between CIMMYT and the Swiss institutions funded by SDC highlights the strong interest of all organizations to extend sustainable agriculture intensification, with the aim of increasing food and nutrition security and eradicate poverty amongst smallholder farmers in southern Africa,â said Thierfelder.
CIMMYT maize breeder, Thokozile Ndhlela (left), inspects a maize trial field with smallholder farmer, Otilia Chirova, in Mashonaland East, Zimbabwe. Photo: Johnson Siamachira/CIMMYT
HARARE, Zimbabwe (CIMMYT) – Little did 47-year-old Thokozile Ndhlela know that growing up in a rural area in Zimbabwe would inspire her to become a well-respected agricultural scientist, helping to transform agriculture by developing science-based solutions to some of the complex issues facing African farmers.
Currently a postdoctoral staff member with the International Maize and Wheat Improvement Center (CIMMYT)in Zimbabweâs capital Harare, Ndhlela encourages girls to choose options that lead to careers in agriculture. Most farmers worldwide average an age of over 60, so Ndhlelaâs work is also helping to encourage young people to get involved in agriculture.
“There are many exciting opportunities to further improve agricultural productivity and improve food and nutritional security in my country, and beyond,” she said with a chuckle.
She comes from humble beginnings â growing up on a small farm, through primary and secondary school, and universities â and now she has begun to reap the rewards of her hard-won endeavors.
She credits her farmer father as her inspiration to pursue agricultural science.
âMy father was my greatest source of inspiration for me to venture into agriculture,â Ndhela said. âFrom high school, he encouraged me to study sciences. He used to boast, saying his daughter would be studying agriculture and that Iâd come back and assist him in his plot.â
His dream came true.
âIâm proud now since he is growing improved maize varieties that lâm providing him,â she said, adding that he proudly tells his friends that the varieties are being bred by his daughter.
Thokozile Ndhlela shows pro-vitamin A maize to visiting scientists at CIMMYT southern Africa regional office in Harare, Zimbabwe. Photo: Johnson Siamachira/CIMMYT
For Ndhlela, the journey has at times been long and winding. She has had to burst age-old stereotypes, which doubt womenâs capacity to engage in science and balance career aspirations with family commitments. She started her journey in pursuit of her first desire to become a teacher, but, she changed course to become an agricultural scientist.
She believes making agricultural research a high priority will also attract more skilled professionals to the field — especially women and young people.
âIâm happy to see farmers in my region using results of my research work,” she said.
Her scientific ambition was nurtured by her female secondary school teachers. After finishing secondary school in 1989, she enrolled at Gwebi College of Agriculture outside Harare to study for a national diploma in agriculture. Afterwards, she worked at the Zimbabwe Crop Breeding Institute in the Ministry of Agricultureâs Department of Research and Specialist Services (DRSS). While at DRSS she earned her Bachelor of Science in agriculture at the Zimbabwe Open University and subsequently enrolled for a masterâs degree in plant breeding at the University of Zambia. While at the DRSS, she began her research and earned a doctoral degree at the University of the Free State in South Africa in 2012, with a thesis entitled, âImprovement strategies for yield potential, disease resistance and drought tolerance of Zimbabwean maize inbred lines.â
âMy greatest passion is to see farmers in Zimbabwe and beyond grow improved maize varieties to step up food security and improve their livelihoods,â she said. âAfter becoming qualified, I was thrilled to put my skills to work and worked hard in breeding maize for drought, disease, heat and other stresses.â
Ndhlela has had the good fortune to implement the results of her work. While working for the national research system, she led the crop breeding program and won CIMMYT’s Best Breeding Program Award in southern Africa five years in succession. This success later culminated in winning the Zimbabwe Presidential Award for excellence in agricultural research in 2015. Under her guidance, the program saw the release of seven high yielding, drought tolerant hybrids and two open pollinated varieties in five years.
âThis was no easy feat since it involved a lot of hard work, tolerance,â Ndhlela said. âI used to spend most of the time in the field since plant breeding is done in the field, and not in the office.ââ
CONFRONTING CHALLENGES
Out in the field with other researchers, Thokozile Ndhlela (far right), demonstrates maize breeding work at a CIMMYT southern Africa partner days in Harare, Zimbabwe. Photo: Johnson Siamachira/CIMMYT
In Africa, food and nutritional security remain a major concern. Declining soil fertility is a significant issue in the region, leading to poor crop performance. Climate change could also result in the number of malnourished people in sub-Saharan Africa increasing by 40 percent by 2050 â from 223 million to 355 million people, according to the Alliance for a Green Revolution in Africa. This challenge will require a great deal of innovation and focused scientific effort.
Ndhlela said smallholder farmers should shift agriculture from its current largely informal status in the economy into the formal business sector with a more structured system that targets young women. As a result, women in agriculture will play critical roles in agricultural incomes and employment development. When treated appropriately, added Ndhlela, agriculture can be moulded into an attractive career, especially for youth. In addition, she said, Africa needs more scientists, and especially women scientists.
A mother of four boys, Ndhlela believes she can make a difference to peopleâs lives through her agricultural research in development work. She shares her views on women in agricultural research in the following interview.
Q: Tell us about your early childhood.
A: I was born in Matobo District in Matabeleland South province of Zimbabwe. Iâm the second born in a family of three boys and two girls. I spent most of my early childhood with my paternal grandparents in Matobo rural area. My grandparents earned a living off farming, growing horticultural crops commercially. They were passionate about farming, and l remember when l was in Grade One I would be woken up very early to go and work in the field before going to school. After school, or during weekends, l would also take the responsibility of herding goats. My parents were also passionate farmers and during school holidays we would all help my grandparents with farm work.
Q: What was one of your childhood dreams?
A: My childhood dream was to become a teacher. I was being inspired by my parents, and my many relatives who were in that profession.
Q: Was there any particular female scientist who inspired you when you were at school?
A: I was particularly inspired by my high school biology and chemistry teachers, who were both female. They taught me that what boys could do we girls could do too.
Q: âGirls should not believe that science training at university is a male domain.â Whatâs your comment on this?
A: Girls used to shy away from science especially at college level but with the new generation this seems to have changed as more girls are now doing science- based programs.
Q: Role models are also critical in shaping oneâs future. Who was your inspiration to pursue a doctorate in agriculture?
A: Dr. Marianne Banziger, CIMMYT deputy director general for research and partnerships (then leading CIMMYTâs Global Maize Program, based in Kenya) inspired me to pursue doctorate studies. Doing a doctorate was far-fetched for me until Dr. Banziger asked me if l were interested in pursuing doctoral studies. She assured me that CIMMYT would support me secure a place to study.
Q: Thereâs a general misconception that studying agricultural science only prepares one to work on a farm. Is this the case?
A: This misconception used to be there especially when l was studying for my national diploma. We would play sports with students from other technical colleges whose students would snear at us agriculture students. They thought we could only work on a farm. Even my high school friends never understood why l chose agriculture. They asked me whether l would be able to work on a farm. But this is changing. People are now aware of the opportunities in agricultural science. I have personally had encounters with parents asking me what is required for their children to study agricultural science. I have made a career in science and agriculture and young girls can do it, also.
Q: Tell us about your experiences as a female researcher with DRSS. What does it mean to a female researcher? What are your experiences at CIMMYT?
A: As a female researcher at DRSS, I commanded a lot of respect from both male and female counterparts. This inspired and gave me the zeal to keep aiming higher. I started working at DRSS in 1994 as a diploma holder. With encouragement and inspiration, l ended up with a doctorate in plant breeding.
At DRSS, I led the Crop Breeding Institute to win a national award in maize breeding excellence. Called the âRobert Gabriel Mugabe Awardâ (after the Zimbabwean president), it is presented bi-annually for critical breakthroughs in research. The $15,000 award was presented to the Crop Breeding Instituteâs National Maize Breeding Program, for outstanding research in the production and release of the maize variety ZS265. The variety has excellent tolerance to diseases, drought and low nitrogen and therefore suitable for production under dryland conditions.
In recognition of their sterling effort in using plant breeding to address low maize productivity on smallholder farms, CIMMYTâs Drought Tolerant Maize for Africa project awarded the âBest Maize Breeding Team in southern Africaâ prize to Zimbabwe a record five times from 2008 to 2014.
Food insecurity can be overcome if we can bring together new knowledge and skills to farmers in a very sustainable manner. There will be crop production challenges unless we integrate climate change, soil fertility and water.
Joining CIMMYT as a maize breeder in 2014 was a dream come true for me and l really felt rewarded for my work. As plant breeding is male-dominated at CIMMYT- Southern Africa Regional Office, l feel challenged to do even better and prove that even women can do the job. I believe Iâm an inspiration to other upcoming female scientists.
Q: During training, what was menâs attitude toward you?
A: I used to command respect from some of my male colleagues. However, some would look down on me. These were forced to change their attitude once they realized that I was better than them in our studies. I vividly remember such a scenario at the University of Zambia where l was the only female in a class of 10 Master of Science students.
Q: What was the main output of your agricultural research?
A: The main output of my agricultural research was the successful production of hybrids that are high yielding, drought and disease tolerant.
Q: To what extent are you involved in agricultural innovation at CIMMYT?
A: Iâm particularly working on a special program on pro – vitamin A maize. This research work is both challenging and rewarding as my colleagues respect me because of my achievements. The work seeks to alleviate the problem of vitamin A deficiency that is prevalent in most developing countries, including those in southern Africa. There is very good evidence that vitamin A deficiency leads to an impaired immune system and can even have an impact on brain development. But effective science can make a huge difference here by enriching staple crops such as maize, with pro-vitamin A and providing subsistence farming households with nutritionally enhanced food.
In Zimbabwe, nearly one in every five children under the age of five years are vitamin A deficient. These deficiencies can lead to lower IQ, stunting, and blindness in children, increased susceptibility to disease for both children and adults; and higher health risks to mothers â and their infants â during childbirth. In partnership with HarvestPlus, and other fellow CIMMYT scientists, l have managed to facilitate the research and release of four pro-vitamin A hybrids in Malawi, Tanzania (two), Zambia (six) and Zimbabwe (four).
Q: Has working for CIMMYT in maize biofortification enriched your skills and knowledge?
A: Working at CIMMYT has made me grow in science. Coupled with improved leadership and gradual increase in my communications skills, I have become very confident in my career. Before joining CIMMYT, I had less knowledge on maize biofortification. I have since gained a lot of knowledge so that l can now explain to people what lâm doing with so much confidence and enthusiasm. Iâm loving it!
Q:Â Women face huge challenges daily and often lack the right kind of support. The employment environment can also be hostile to women scientists. Has working for CIMMYT enabled male scientists to view female scientists the same, as equal partners in agricultural research in development?
A: I feel male scientists at CIMMYT are mature and view female scientists as equal partners in agricultural research in development, and l respect them for that.
Maimouna Abass, a plant health inspector at Zambia Agriculture Research Institute collects leave samples to test for MCMV in a practical session during the MLN surveillance and diagnostic workshop held in Harare, Zimbabwe. Photo: D. Hodson/CIMMYT
NAIROBI, Kenya (CIMMYT) â Three major commercial maize-growing and seed exporting countries in southern Africa were found to be so far free from the deadly maize lethal necrosis (MLN) disease. MLN surveillance efforts undertaken by national plant protection organizations (NPPOs) in Malawi, Zambia and Zimbabwe in 2016 have so far revealed no incidence of MLN, including the most important causative agent, maize chlorotic mottle virus (MCMV).
The three countries export an estimated 7,000 metric tons of maize seed to Angola, Botswana, Democratic Republic of Congo, Ethiopia, Kenya, Malawi, Mozambique, Rwanda, Swaziland and Tanzania for commercial cultivation by millions of smallholder farmers whose households rely on maize as a staple food.
MLN surveys were conducted as part of ongoing efforts through a project on MLN Diagnostics and Management, funded by U.S. Department for International Development (USAID) East Africa Mission, to  strengthen the capacity of NPPOs on surveillance and diagnostics. A total of 12 officers were equipped with knowledge on modern sampling and diagnostics techniques to test plants and seed lots for MLN causing viruses; this was done through a training workshop held in Harare, Zimbabwe on March 3 and 4, 2016 facilitated by scientists working with the International Maize and Wheat Improvement Center (CIMMYT).
The NPPO teams from Malawi, Zambia and Zimbabwe then undertook surveys of farmersâ and commercial maize seed production fields, including testing (through MCMV immunostrips) for possible presence of the virus.
âWhen CIMMYT called the first stakeholders awareness meeting we realised we needed to do this surveillance as soon as possible to ascertain MLN status in the country â and so the training was very important and extremely useful,â said Maimouna Abass, a plant health inspector at Zambia Agriculture Research Institute (ZARI). âThe fact that we went to the field and successfully conducted the surveys using the MLN diagnostics and sampling techniques learnt was great.â
Abass and three colleagues who participated in the training, trained 10 other inspectors who took part in the surveillance work.
The results from farmersâ fields, commercial seed production fields and agri-seed dealers, showed negative results for the presence of MCMV and MLN. The MLN surveillance techniques and protocols used across all the three countries were similar, making it possible to effectively compare the results.
âThe harmonization of the protocols, across the teams from Malawi and Zambia, was important for me, since this meant that the three countries were able to do the same surveillance using the same protocols and applying the same design across all the countries,â said Nhamo Mudada, chief research officer from the Plant Quarantine Station in Zimbabwe.
Participants recieve instructions from L.M Suresh, a maize pathologist at CIMMYT, during the MLN surveillance and diagnostic workshop. Photo: D.Hodson/CIMMYT
Although the MLN disease has not been detected in the southern Africa region, the risk of incidence still remains high through various means, including insect vectors, contaminated seed, and cross-border grain transfers. Therefore, continued caution and stringent surveillance, monitoring and diagnostic measures are required to prevent the possible incidence and spread of MLN into the non-endemic countries.
Further surveillance work will be conducted in 2017, so that each team can cover other targeted areas within their respective countries. MLN surveillance using harmonized protocols will also be undertaken in the MLN-endemic countries, namely Ethiopia, Kenya, Rwanda, Tanzania and Uganda. Â Through systematic surveillance efforts, NPPOs, seed companies and policymakers can clearly understand the prevalence of MLN in specific areas in an endemic country for targeted management. Also, seed companies will be able to target production of commercial seed in MLN-free areas.
As this work progresses, B. M. Prasanna, director of the CGIAR Research Program on MAIZE and CIMMYTâs Global Maize Program as well as Leader for the MLN Diagnostics and Management Project, emphasized the need to intensively deploy MLN-tolerant and resistant varieties, not only in the MLN-endemic countries in eastern Africa, but also in the non-endemic countries in sub-Saharan Africa.
âWe have about 22 new, high-yielding, MLN-tolerant or resistant hybridsthat are presently under national performance trials in Kenya, Tanzania and Uganda. We actively encourage seed companies operating in southern Africa to take up promising pre-commercial hybrids with MLN tolerance or resistance from CIMMYT, for release, scale up and deployment to the farmers,â Prasanna said. âDiagnostics and surveillance have to go hand in hand with deployment of new improved varieties that can effectively respond to the MLN challenge.â
In the East African countries of Kenya, Tanzania and Uganda, seed companies have already released  MLN-tolerant varieties. While one hybrid is already being commercialized in Uganda, three more are expected to reach farmers in Kenya and Tanzania from 2017.
âThere is also now a very urgent need to deploy MLN resistant varieties in Rwanda and Ethiopia. We need to convey this message to the government and seed companies and work closely to get the seed of MLN resistant varieties to the farmers as soon as possible,â Prasanna added.
The  MLN diagnostics and management project, which is funded by the U.S. Department for International Development (USAID), supports work aimed at preventing the spread of MCMV from MLN-endemic to non-endemic areas in sub-Saharan Africa. USAID also supports the commercial seed sector and phytosanitary systems in targeted countries (Ethiopia, Kenya, Malawi, Rwanda, Tanzania, Uganda, Zambia and Zimbabwe), in the production of MCMV-free commercial seed, and promotes the use of clean hybrid seed by the farmers.
EL BATAN, Mexico (CIMMYT) â El Niño may have passed, but food security in southern Africa will continue to deteriorate until next year, as farmers struggle to find the resources to rebuild their livelihoods. Currently, around 30 million people in southern Africa require food aid, expected to rise to 50 million people by the end of February 2017.
Two Zimbabwe-based scientists from the International Maize and Wheat Improvement Center (CIMMYT) highlighted predictions that El Niño will become more frequent and severe under climate change, and that heat stress will reduce maize yields in southern Africa by 2050. Research centers, development agencies and governments must work together to respond to climate predictions before food crises develop, they said.
Q: What do climate predictions say and how do they inform CIMMYTâs work?
A new stress-tolerant maize variety compared in Zimbabwe. CIMMYT/Johnson Siamachira
Jill Cairns: Using climate projections we identified what future maize growing environments are going to be like, what traits will be needed for these environments and where the hotspots of vulnerability will be in terms of maize production.
We identified that heat stress is going to become a more important issue for maize in southern Zimbabwe, and southern Africa generally.
Previously we had no heat screening in the whole of Africa for maize breeding, and four years ago we set up heat screening networks. Through that we are starting to get maize varieties that do well under heat and drought.
This was meant to be for 2050, but now we have seen in this last El Niño that heat stress is a real problem. We actually have varieties now, thanks to the identification of the problem and the pre-emptive work towards it.
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Q: What can be done for farmers in drought-stricken areas?
Drought in southern Africa during El Niño. CIMMYT/GIS Lab
Christian Thierfelder: We have systems with adaptation qualities. For example, conservation agriculture increases water infiltration and maintains higher levels of soil moisture. So in times of dry spells, these systems can produce more, and live from the residual moisture in the soil.
Stress-tolerant maize is selected under drought and heat stress besides other biotic and abiotic stresses, and specifically adapted to such circumstances. We know that the varieties themselves can help farmersâ yields by 30 to 50 percent, but if you combine that with other technologies, and we have seen that this last year, you can have yield gains of over 100 percent with conservation agriculture and improved seed for example under drought conditions.
We have seen this year in Malawi, in communities that were heavily affected by El Niño, that we harvested almost two tons more maize per hectare in comparison to the conventional systems. I think this is a huge benefit that we really have to roll out.
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Q: What can be achieved over the next five to seven years?
Christian Thierfelder: Our biggest aim is to improve and increase the resilience of farming systems. We are not looking at a single technology like drought tolerant maize or conservation agriculture in isolation, but looking at it more from livelihoods perspective and a farming systems perspective.
Besides technologies, we also need other climate-smart options and approaches that support farmers to respond to a changing climate. Farmers also need cash if they have failed in a drought year, and small loans or microfinancing will be critical to buy things from scratch and re-initiate farming.
We have the technologies, we have researched them and we know their impact on a small scale. What we want to do now is encourage public and private organizations, including seed companies, that work in that space to come together with us and jointly find solutions.
We as CIMMYT can only tackle a certain proportion of the farming system with our technologies and approaches. We have other CGIAR centers that specialize in legumes, cassava and livestock, and we partner a lot with international NGOs like Concern, Catholic Relief Services, CARE, World Vision, Total LandCare and the national agriculture research and extension systems to help us with scaling.
If we really come together now, if we have a coherent and joint multidisciplinary approach, I think in seven yearsâ time we will have reached many more farmers. We will target 10 million farmers practicing climate-smart agriculture in the next five to seven years.
Food security is at the heart of Africaâs development agenda. However, climate change is threatening the Malabo Commitment to end hunger in the region by 2025, said Leonard Rusinamhodzi, a systems agronomist at the International Maize and Wheat Improvement Center.
