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Location: Democratic Republic of the Congo

Ten years later: CIMMYT facilities in East Africa continue to make a difference

Written by Julian Bañuelos-Uribe on . Posted in News.

CIMMYT and partners in Kenya recently marked the 10th anniversary of two major facilities that have been crucial for maize breeding in sub-Saharan Africa. The Maize Doubled-Haploid (DH) facility and the Maize Lethal Necrosis (MLN) screening facility at the Kenya Agriculture and Livestock Research Organization (KALRO) centers in Naivasha and Kiboko, respectively, have made immense contributions to the rapid development of higher-yielding, climate-resilient and disease-resistant maize varieties for smallholder farmers across the continent.

An aerial photo of the Naivasha Research Center. (Photo: CIMMYT)

“These two facilities have been instrumental in furthering KALRO’s mission to utilize technology in the service of Kenya’s smallholder farmers,” said KALRO Director General/CEO, Eliud Kireger. “They also exhibit the spirit of cooperation and collaboration that is necessary for us to meet all the challenges to our food systems.”

“Deploying a higher yielding maize variety may not be impactful in eastern Africa if that variety does not have resistance to a devastating disease like MLN,” said CIMMYT’s Director General Bram Govaerts. “These two facilities demonstrate the holistic methods which are key to working towards a more productive, inclusive and resilient agrifood system.”

Maize DH facility

Hybrid maize varieties have much higher yields than open-pollinated varieties and are key to unlocking the agricultural potential of maize producing countries. The doubled haploid process is an innovative technology producing within a year genetically true-to-type maize lines that serve as building blocks for improved maize hybrids.

Unlike conventional breeding, which takes at least 7 to 8 generations or crop seasons to develop parental lines, DH lines are generated within two seasons, saving significant time, labor and other resources. DH maize lines are highly uniform, genetically stable, and are more amenable to the application of modern molecular tools, making them perfect resources for breeding elite maize hybrids.

Workers in the Kiboko Double Haploid facility. (Photo: CIMMYT)

The aim of CIMMYT’s maize DH facility is to empower the breeding programs throughout the low-and middle-income countries in Africa by offering a competitive, accessible, not-for-profit DH production service that will accelerate their rate of genetic gain and fast-track development of improved maize varieties for farming communities.

Since 2017, the DH facility has delivered 280,000 DH lines from 1,840 populations of which 20% were delivered to public and private sector partners. CIMMYT maize breeding programs and partner organizations have embraced the use of DH technology, with many of the newest maize hybrids released in Africa being derived from DH lines. The facility has also served as a training ground so far for over 60 scientists and hundreds of undergraduate students in modern breeding technologies.

“Before 2013, DH technology was mainly employed by private, multinational corporations in North America, Europe, Asia and Latin America,” said CIMMYT’s DH Facility Manager, Vijay Chaikam. “But the DH facility operated by CIMMYT at the KALRO Kiboko research station is specifically targeted at strengthening the maize breeding programs by the public sector institutions as well as small-and medium-size enterprise seed companies in Africa.”

The maize DH facility at Kiboko, Kenya, was established with funding support from the Bill & Melinda Gates Foundation and inaugurated in September 2013. The facility includes an administrative building, seed quality laboratory, training resources, artificial seed dyer, a cold-storage seed room, a chromosome doubling laboratory, greenhouse and a state-of-the-art irrigation system to support year-round DH production in the 17-hectare nursery.

MLN screening facility

MLN is a devastating viral disease that can decimate farmers’ fields, causing premature plant death and unfilled, poorly formed maize ears, and can lead to up to 100 percent yield loss in farmers’ fields. Though known in other parts of the world for decades, the disease was first identified in eastern Africa in 2011. By 2015, MLN had rapidly spread across eastern Africa, including Kenya, Uganda, Tanzania, South Sudan, Rwanda, Democratic Republic of Congo and Ethiopia. CIMMYT scientists quickly discovered that almost all the commercial maize cultivars in eastern Africa were highly susceptible to the disease.

Against this backdrop, CIMMYT and KALRO recognized the urgent need for establishing a screening facility to provide MLN phenotyping service and effectively manage the risk of MLN on maize production through screening of germplasm and identifying MLN-resistant sources. The facility was built with funding support from the Bill & Melinda Gates Foundation and the Syngenta Foundation for Sustainable Agriculture, and inaugurated in September 2013.

Resistant and susceptible line at the Maize Lethal Necrosis facility. (Photo: CIMMYT)

“The MLN screening facility is a key regional resource in breeding for resistance to a devastating viral disease. The facility is indeed one of the key factors behind successful management of MLN and helping stem the tide of losses in eastern Africa,” said Director of the Global Maize Program at CIMMYT and One CGIAR Plant Health Initiative, B.M. Prasanna. “Fighting diseases like MLN, which do not respect political boundaries, requires strong regional and local collaboration. The successes achieved through the MLN Screening facility in the past 10 years embody that spirit of collaboration.” Indeed, farmers in the region now have access to over twenty genetically diverse, MLN-tolerant/resistant maize hybrids released in eastern and southern Africa.

The facility is the largest dedicated MLN screening facility in Africa and has evaluated over 230,000 accessions (over 330,000 rows of maize) from CIMMYT and partners, including over 15 national research programs, national and multinational seed companies. The facility covers 20 hectares, of which 17 hectares are used for field screening of germplasm. Dedicated laboratories and screen houses cover the remaining 3 hectares.

“MLN phenotyping service is conducted under stringent quarantine standards and the high-quality data is shared with all the CGIAR and public and private partners. The MLN screening service has helped breeding programs across the continent, aided in undertaking epidemiological research activities, and supported capacity building of students from diverse institutions, and regional stakeholders regarding MLN diagnosis and best management practices,” said CIMMYT’s Maize Pathologist in Africa, L.M. Suresh.

“The output of MLN resistant lines and hybrids has been remarkable,” said Director of Phytosanitary and Biosecurity at the Kenya Plant Health Inspectorate Service (KEPHIS), Isaac Macharia. “And the facility has strictly adhered to quarantine regulations.”

In Uganda, the MLN facility was crucial in the “release of the first-generation MLN tolerant hybrids and dissemination of MLN knowledge products that minimized the economic impact of MLN,” said the Director of Research of the National Crops Resources Research Institute, Godfrey Asea.

Peter Mbogo, maize breeder with Seed Co Group, said, “This is the only quarantine facility in the world where you can screen against MLN under artificial inoculation. It has been an excellent return on investment.”

CGIAR Initiative: Excellence in Agronomy

Written by Sarah McLaughlin on . Posted in Uncategorized.

Smallholdings represent over 80% of the world’s farms, mostly located in the Global South, and supply 50% of global food. Enhanced agronomy management has a great potential to increase productivity, sustainability, efficiency and competitiveness of these smallholdings, which is characterized by low and variable yields and profitability, smallholder farming challenges include water scarcity, climate change, low resource use efficiencies and declining soil health. These result in negative impacts on food and nutrition security, equitable livelihoods and ecosystem health.  

Smallholder farmers seasonally make critical agronomic decisions regarding crop choice, planting dates and pest, disease, weed, soil fertility and water management, often based on suboptimal practices and information. Traditional agronomic research enhances our understanding of basic processes, but with limited connection to stakeholder demand and often based on outdated approaches. The development, deployment and uptake of interventions is hampered by social, economic and institutional constraints, further confounded by adherence to conventional supply-driven innovation strategies.

Objective

This Initiative aims to deliver an increase in productivity and quality per unit of input (agronomic gain) for millions of smallholder farming households in prioritized farming systems by 2030, with an emphasis on women and young farmers, showing a measurable impact on food and nutrition security, income, resource use, soil health, climate resilience and climate change mitigation.  

Activities

This objective will be achieved through:

  • Facilitating the delivery of agronomy-at-scale solutions, including development and technical/user-experience validation and the co-creation and deployment of gender- and youth-responsive solutions to smallholder farmers via scaling partners. 
  • Enabling the creation of value from big data and advanced analytics through the assembly and governance of data and tools; application of existing analytics and solutions for specific use cases; supply of information on climate impacts, inclusivity and sustainability of agronomic solutions; and national agricultural research system capacity strengthening. 
  • Driving the next generation of agronomy-at-scale innovations by addressing key knowledge gaps and facilitating innovation in agronomy research through engagement with partners. 
  • Nurturing internal efficiencies for an agile and demand-driven agronomy research and development community through internal organization and external partnerships for prioritization, demand mapping and foresight. 
Farmers at a demonstration farm field day organized by East African Seed Company. (Photo: Courtesy)

Fighting the stress

Written by Rodrigo Ordóñez on . Posted in Features.

East African Seed Company has a rich history of nearly 50 years, serving farmers with improved climate-resilient seed varieties. Established in 1972, the company produces and sells improved seed, through a wide distribution network in at least 15 countries in sub-Saharan Africa. It also markets agrochemicals and other farm inputs, and has ambitions of expanding to the rest of Africa, trading as Agriscope Africa Limited.

Smallholder farmers in sub-Saharan Africa continue to face multiple biotic and abiotic stresses as they try to improve their farms’ productivity and their livelihoods. Maize seed that guarantees high yield is a key trait, coupled with other key attributes such as drought tolerance, disease and pest resistance, early seedling vigor as well as suitability for food and animal feed.

With the varieties serving both small- and large-scale commercial farmers, challenges such as the fall armyworm, diminishing soil fertility and erratic rains have persisted in recent years and remain as key farming obstacles. “Such challenges diminish crop production and the grain quality thereby, lessening farmers’ profitability,” says Rogers Mugambi, Chief Operating Officer of East African Seed Company.

Scientists at the International Maize and Wheat Improvement Center (CIMMYT), in collaboration with partners in the national agriculture research systems and the commercial seed sector, continue to develop seed varieties that can guarantee decent yield even in times of climatic, disease and pest stress.

General view of the East African Seed warehouse. (Photo: Jerome Bossuet/CIMMYT)
General view of the East African Seed warehouse. (Photo: Jerome Bossuet/CIMMYT)

Top-notch research trickles down to farmers

Over the years, East African Seed has inked partnerships with CIMMYT, national research institutes and other agencies in the countries where it operates. Such partnerships have been the driving force to its success and the impacts within the farming communities in sub-Saharan Africa.

“Our collaboration with CIMMYT began in 2008 with germplasm acquisition. The cooperation has expanded to include testing networks for new hybrids, early-generation seed production and marketing. The overall beneficiary is the smallholder farmer who can access quality seeds and produce more with climate-smart products,” Mugambi says.

Apart from the multi-stress-tolerant varieties developed and released over time by the national agricultural research programs, CIMMYT recently announced a breakthrough: fall armyworm-tolerant elite maize hybrids for eastern and southern Africa. This success followed three years of rigorous research and experiments conducted in Kenya and signified a key milestone in the fight against fall armyworm.

As part of the partnership in the Drought Tolerant Maize for Africa (DTMA) and Stress Tolerant Maize for Africa (STMA) projects, East African Seed Company (Agriscope Africa Limited) established demonstration farms and conducted field days in Kenya, reaching thousands of farmers as a result. It was also able to produce early generation seed, which supported production of 2,000 metric tons of certified seed. This partnership now continues in the Accelerating Genetic Gains in Maize and Wheat (AGG) project.

The company has contracted large- and small-scale growers across the country to meet its seed production targets.

“Most of our small-scale growers are clustered in groups of up to 30 farmers with less than five acres of farmland. The large growers have advanced irrigation facilities such as the pivot system and seed processing plants. The seed from the fields is pre-cleaned and dried in the out-grower facilities before delivery to our factory for further cleaning and processing,” Mugambi explains.

A handful of improved maize seed from the drought-tolerant variety TAN 250, developed and registered for sale in Tanzania through CIMMYT's Drought Tolerant Maize for Africa (DTMA) project. (Photo: Anne Wangalachi/CIMMYT)
A handful of improved maize seed from the drought-tolerant variety TAN 250, developed and registered for sale in Tanzania through CIMMYT’s Drought Tolerant Maize for Africa (DTMA) project. (Photo: Anne Wangalachi/CIMMYT)

Out with the drought

Currently, of the 1,300 metric tons of drought-tolerant hybrid seeds it produces yearly, 500 metric tons constitute those derived from the partnership in the STMA project. Two notable hybrids,  HODARI (MH501) and TOSHEKA (MH401), were derived during the DTMA and STMA projects. Released in 2014 and accepted for regional certification through the Common Market for Eastern and Southern Africa (COMESA)’s regional catalogue, the MH501 is a mid-altitude adapted and medium maturing three-way cross hybrid. The yield advantage of 15% over the local commercial checks triggered widespread adoption by the farmers, according to Mugambi. In Kenya, it was used as a commercial check during national performance trials, from 2017 to 2019.

The MH401, an early maturing hybrid with moderate drought tolerance, has been adopted in lowland and mid-altitude dry ecologies of Kenya and Tanzania. It has a 20% yield advantage over the local commercial checks.

As part of its varietal replacement, East African Seed Company looks to steadily retire older varieties such as KH600-15A and WE1101 and promote new ones including TAJIRI (EASH1220), TAJI (MH502) and FARAJA (MH503).

To promote new varieties and successfully reach smallholders, the company conducts field days, farm-level varietal demonstrations, road shows and radio programs. It also disseminates information on the benefits of new varieties while also dispensing promotional materials such as branded t-shirts and caps.

“Additionally, we organize annual field days at our research farm in Thika, where key and influential farmers and other stakeholders are invited from across Kenya and neighboring countries to learn about our new agricultural technologies,” Mugambi says.

Researchers and visitors listen to explanations during a tour of infected maize fields at the MLN screening facility in Naivasha, Kenya. (Photo: CIMMYT)

Fast-tracked adoption of second-generation resistant maize varieties key to managing maize lethal necrosis in Africa

Written by Rodrigo Ordóñez on . Posted in Features.

Scientists are calling for accelerated adoption of new hybrid maize varieties with resistance to maize lethal necrosis (MLN) disease in sub-Saharan Africa. In combination with recommended integrated pest management practices, adopting these new varieties is an important step towards safeguarding smallholder farmers against this devastating viral disease.

A new publication in Virus Research shows that these second-generation MLN-resistant hybrids developed by the International Maize and Wheat Improvement Center (CIMMYT) offer better yields and increased resilience against MLN and other stresses. The report warns that the disease remains a key threat to food security in eastern Africa and that, should containment efforts slacken, it could yet spread to new regions in sub-Saharan Africa.

The publication was co-authored by researchers at the International Maize and Wheat Improvement Center (CIMMYT), Kenya Agricultural and Livestock Research Organization (KALRO), the Alliance for a Green Revolution in Africa (AGRA), the African Agricultural Technology Foundation (AATF) and Aarhus University in Denmark.

CIMMYT technician Janet Kimunye (right) shows visitors a plant with MLN symptoms at the MLN screening facility in Naivasha, Kenya. (Photo: CIMMYT)
CIMMYT technician Janet Kimunye (right) shows visitors a plant with MLN symptoms at the MLN screening facility in Naivasha, Kenya. (Photo: CIMMYT)

Stemming the panic

The first reported outbreak of MLN in Bomet County, Kenya in 2011 threw the maize sector into a panic. The disease caused up to 100% yield loss. Nearly all elite commercial maize varieties on the market at the time were susceptible, whether under natural of artificial conditions. Since 2012, CIMMYT, in partnership with KALRO, national plant protection organizations and commercial seed companies, has led multi-stakeholder, multi-disciplinary efforts to curb MLN’s spread across sub-Saharan Africa. Other partners in this endeavor include the International Institute of Tropical Agriculture (IITA), non-government organizations such as AGRA and AATF, and advanced research institutions in the United States and Europe.

In 2013 CIMMYT established an MLN screening facility in Naivasha. Researchers developed an MLN-severity scale, ranging from 1 to 9, to compare varieties’ resistance or susceptibility to the disease. A score of 1 represents a highly resistant variety with no visible symptoms of the disease, while a score of 9 signifies extreme susceptibility. Trials at this facility demonstrated that some of CIMMYT’s pre-commercial hybrids exhibited moderate MLN-tolerance, with a score of 5 on the MLN-severity scale. CIMMYT then provided seed and detailed information to partners for evaluation under accelerated National Performance Trials (NPTs) for varietal release and commercialization in Kenya, Tanzania and Uganda.

Between 2013 and 2014, four CIMMYT-derived MLN-tolerant hybrid varieties were released by public and private sector partners in East Africa. With an average MLN severity score of 5-6, these varieties outperformed commercial MLN-sensitive hybrids, which averaged MLN severity scores above 7. Later, CIMMYT breeders developed second-generation MLN-resistant hybrids with MLN severity scores of 3–4. These second-generation hybrids were evaluated under national performance trials. This led to the release of several hybrids, especially in Kenya, over the course of a five-year period starting in 2013. They were earmarked for commercialization in East Africa beginning in 2020.

Maize Lethal Necrosis (MLN) sensitive and resistant hybrid demo plots in Naivasha’s quarantine & screening facility (Photo: KIPENZ/CIMMYT)
Maize Lethal Necrosis (MLN) sensitive and resistant hybrid demo plots in Naivasha’s quarantine & screening facility (Photo: KIPENZ/CIMMYT)

Widespread adoption critical

The last known outbreak of MLN was reported in 2014 in Ethiopia, marking an important break in the virus’s spread across the continent. Up to that point, the virus had affected the Democratic Republic of the Congo, Kenya, Rwanda, Tanzania and Uganda. However, much remains to be done to minimize the possibility of future outbreaks.

“Due to its complex and multi-faceted nature, effectively combating the incidence, spread and adverse effects of MLN in Africa requires vigorous and well-coordinated efforts by multiple institutions,” said B.M. Prasanna, primary author of the report and director of the Global Maize Program at CIMMYT and of the CGIAR Research Program on Maize (MAIZE). Prasanna also warns that most commercial maize varieties being cultivated in eastern Africa are still MLN-susceptible. They also serve as “reservoirs” for MLN-causing viruses, especially the maize chlorotic mottle virus (MCMV), which combines with other viruses from the Potyviridae family to cause MLN.

“This is why it is very important to adopt an integrated disease management approach, which encompasses extensive adoption of improved MLN-resistant maize varieties, especially second-generation, not just in MLN-prevalent countries but also in the non-endemic ones in sub-Saharan Africa,” Prasanna noted.

The report outlines other important prevention and control measures including: the production and exchange of “clean” commercial maize seed with no contamination by MLN-causing viruses; avoiding maize monocultures and continuous maize cropping; practicing maize crop rotation with compatible crops, especially legumes, which do not serve as hosts for MCMV; and continued MLN disease monitoring and surveillance.

L.M. Suresh (center-right), Maize Pathologist at CIMMYT and Head of the MLN Screening Facility, facilitates a training on MLN with national partners. (Photo: CIMMYT)
L.M. Suresh (center-right), Maize Pathologist at CIMMYT and Head of the MLN Screening Facility, facilitates a training on MLN with national partners. (Photo: CIMMYT)

Noteworthy wins

In addition to the development of MLN-resistant varieties, the fight against MLN has delivered important wins for both farmers and their families and for seed companies. In the early years of the outbreak, most local and regional seed companies did not understand the disease well enough to produce MLN-pathogen free seed. Since then, CIMMYT and its partners developed standard operating procedures and checklists for MLN pathogen-free seed production along the seed value chain. Today over 30 seed companies in Ethiopia, Kenya, Uganda, Rwanda and Tanzania are implementing these protocols on a voluntary basis.

“MLN represents a good example where a successful, large-scale surveillance system for an emerging transboundary disease has been developed as part of a rapid response mechanism led by a CGIAR center,” Prasanna said.

Yet, he noted, significant effort and resources are still required to keep the maize fields of endemic countries free of MLN-causing viruses. Sustaining these efforts is critical to the “food security, income and livelihoods of resource-poor smallholder farmers.

To keep up with the disease’s changing dynamics, CIMMYT and its partners are moving ahead with novel techniques to achieve MLN resistance more quickly and cheaply. Some of these innovative techniques include genomic selection, molecular markers, marker-assisted backcrossing, and gene editing. These techniques will be instrumental in developing elite hybrids equipped not only to resist MLN but also to tolerate rapidly changing climatic conditions.

Read the full report on Virus Research:
Maize lethal necrosis (MLN): Efforts toward containing the spread and impact of a devastating transboundary disease in sub-Saharan Africa

Cover photo: Researchers and visitors listen to explanations during a tour of infected maize fields at the MLN screening facility in Naivasha, Kenya. (Photo: CIMMYT)

Winners of the 2019 MAIZE Youth Innovators Awards – Africa receive their awards at the STMA meeting in Lusaka, Zambia. From left to right: Admire Shayanowako, Blessings Likagwa, Ismael Mayanja and Hildegarde Dukunde. Fifth awardee Mila Lokwa Giresse not pictured. (Photo: J.Bossuet/CIMMYT)

Winners of 2019 MAIZE Youth Innovators Awards – Africa announced

Written by Rodrigo Ordóñez on . Posted in Press releases.

Winners of the 2019 MAIZE Youth Innovators Awards – Africa receive their awards at the STMA meeting in Lusaka, Zambia. From left to right: Admire Shayanowako, Blessings Likagwa, Ismael Mayanja and Hildegarde Dukunde. Fifth awardee Mila Lokwa Giresse not pictured. (Photo: J.Bossuet/CIMMYT)
Winners of the 2019 MAIZE Youth Innovators Awards – Africa receive their awards at the STMA meeting in Lusaka, Zambia. From left to right: Admire Shayanowako, Blessings Likagwa, Ismael Mayanja and Hildegarde Dukunde. Fifth awardee Mila Lokwa Giresse not pictured. (Photo: J.Bossuet/CIMMYT)

LUSAKA, Zambia (CIMMYT) – The CGIAR Research Program on Maize (MAIZE) officially announced the winners of the 2019 MAIZE Youth Innovators Awards – Africa at an awards ceremony held on May 9, 2019, in Lusaka, Zambia. These awards recognize the contributions of young women and men under 35 to innovation in African maize-based agri-food systems, including research for development, seed systems, agribusiness, and sustainable intensification. The awards, an initiative of MAIZE in collaboration with Young Professionals for Agricultural Research and Development (YPARD), were offered in three categories: farmer, change agent, and researcher.

The MAIZE Youth Innovators Awards aim to identify young innovators who can serve to inspire other young people to get involved in maize-based agri-food systems. This is the second year of the award, which was launched in 2018 with a first cohort of winners from Asia. Part of the vision is to create a global network of young innovators in maize based systems from around the world.

2019 award recipients were invited to attend the Stress Tolerant Maize for Africa (STMA) project meeting in Lusaka, May 7-9, where they had the opportunity to present their work. The project meeting and award ceremony also allowed these young innovators to network and exchange experiences with MAIZE researchers and partners. Looking forward, award recipients may also get the opportunity to collaborate with MAIZE and its partner scientists in Africa on implementing or furthering their innovations.

This year’s five awardees are:

Hildegarde Dukunde (Rwanda) – Category: Change Agent

Dukunde is a graduate in Human Nutrition and serves as a Sales Associate for Agrifood Business Consulting Ltd. She has been at the forefront of preventing aflatoxin contamination in Rwanda by helping smallholder farmers to access low-cost post-harvest equipment, namely DryCard™ and Purdue Improved Crop Storage (PICS) bags. The DryCard™ is an inexpensive device developed by University of California Davis researchers for determining if dried food is dry enough to prevent mold growth and aflatoxin contamination during storage and reducing post-harvest losses.

Mila Lokwa Giresse (Democratic Republic of the Congo) – Category: Change Agent

Giresse is the CEO of Mobile Agribiz. This company develops the Mobile Agribiz App, an innovative tool to enhance the pest and disease diagnostics of fall armyworm in maize. It uses artificial intelligence and machine learning to easily detect the pest across maize crops at any stage of the production cycle. The app aims to assist farmers, extension workers, and agribusinesses in democratic republic of Congo with early detection and accurate diagnosis. Through SMS and smart alert notifications, the Mobile Agribiz App provides farmers with constant reminders and real-time information on how to detect, manage, and address fall armyworm on maize.

Blessings Likagwa (Malawi) – Category: Farmer

Likagwa lives in Mtunthama, Malawi, where he works on his family’s farm. From a young age he has had an interest in farming and for the past eight years he has been involved in growing a variety of crops, especially maize and cassava. In the future he hopes to use his bachelor’s degree in Community Development and his interest in technology to help smallholder farmers in Malawi and Eastern Africa adapt to the challenges of climate change and rapid population growth. Since 2018, in collaboration with UNICEF and Kyoto University, he has investigated how drone technology can improve agricultural performance and benefit Malawi’s smallholders.

Ismael Mayanja (Uganda) – Category: Researcher

Mayanja is a 2019 graduate of Makerere University with a Bachelor of Science degree in Agricultural Engineering. He is currently assisting research at Makerere University to ascertain and quantify post-harvest losses associated with transportation of agricultural produce in the markets of Kampala district, Uganda. His primary research interest lies in post-harvest handling and technology, motivated by the reported 40% post-harvest loss of agricultural produce by farmers in sub-Saharan Africa. He developed a bicycle-powered maize cleaning machine to increase efficiency and reduce time dedicated to cleaning maize at several primary schools in Uganda.

Admire Shayanowako (Republic of South Africa) – Category: Researcher

Shayanowako is a researcher at the African Centre for Crop Improvement (ACCI) – University KwaZulu-Natal. His research focuses on the parasitic weed Striga, also known as witch weed, which causes severe crop losses to millions of small-scale African maize farmers. The goal of the project is to combine breeding for Striga resistance in maize with a soil fungus, Fusarium oxysporum f.sp. strigae (FOS) that is highly specific in its pathogenicity to Striga and acts as a biological control agent. The breeding approach aims to develop at least partial host resistance in open pollinated maize germplasms that are adapted to the semi-arid regions. When partial host resistance is augmented with biological control agent FOS, parasitic effects of Striga decline overwhelmingly. Currently, the breeding component of the research has embarked on identification of quantitative trait locus (QTL) controlling Striga resistance in maize through genomic based approaches.

For further information, contact:

Jennifer Johnson
Communications Officer, CGIAR Research Program on Maize (MAIZE)
Telephone: +52 (55) 5804 2004 ext. 1036
Email: j.a.johnson@cgiar.org

Book launch: Lead farmers in eastern and southern Africa

Written by Carolyn Cowan on . Posted in News. 1 Comment on Book launch: Lead farmers in eastern and southern Africa

Tackling the challenges of climate change and increasing scarcity of resources like arable land and water requires that farming and food systems around the world undergo fundamental shifts in thinking and practices. A new book draws on experiences of men and women farmers across eastern and southern Africa who have been associated with the Sustainable Intensification of Maize-Legume Systems for Food Security in Eastern and Southern Africa (SIMLESA) project. The inspiring and moving accounts tell the story of how these farmers have bravely embraced change to improve their farming methods and consequently the lives and livelihoods of their families.

The maize-growing regions of southern and eastern Africa face many challenges, including lower than average yields, crop susceptibility to pests and diseases, and abiotic stresses such as droughts that can be frequent and severe. There is also widespread lack of access to high-yielding stress resilient improved seed and other farming innovations, presenting a need for scalable technologies, adapted to farmers’ growing conditions.

Maize is the most important staple crop in the region, feeding more than 200-300 million people across Africa and providing food and income security to millions of smallholder farmers. Prioritization of cost reducing, yield enhancing and resource conserving farming methods is vital to catalyze a shift towards sustainable and resilient maize agri-food systems. Conservation agriculture (CA) is one promising approach.

Launched in 2010, SIMLESA is led by the International Maize and Wheat Improvement Center (CIMMYT) and funded by the Australian Center for International Agricultural Research (ACIAR). The project supports farmers and partner organizations to achieve increased food production while minimizing pressure on the environment by using smallholder farmers’ resources more efficiently through CA approaches. SIMLESA is implemented by national agricultural research systems, agribusinesses and farmers in partner countries including, Ethiopia, Kenya, Malawi, Mozambique, Rwanda, Tanzania and Uganda.

The farmers’ words in this book drive home the core philosophy of SIMLESA: that critical paradigm shifts in smallholder farming are possible and can lead to positive and potentially lasting impacts.

The candid accounts of the benefits yielded from adopting new practices like CA are a testimony to this idea:  “Now we have seen with our own eyes these new methods are beneficial, and we want to continue what we are doing….my field is a school where others can learn,” said Maria Gorete, a farmer in Mozambique.

Policy makers and scientists from eastern and southern Africa met in Uganda at a regional forum convened by the Association for Strengthening Agricultural Research in Eastern and Central Africa (ASARECA), on 3-4 May 2019. The forum discussed ways to scale up the learnings of SIMLESA and a joint communique recommending policy actions was signed by the Ministers of Agriculture of the Republic of Burundi, the Republic of the Congo, the Democratic Republic of Congo, the State of Eritrea, the Federal Democratic Republic of Ethiopia, the Republic of Kenya, the Republic of Madagascar,  the Republic of Rwanda, the Republic of South Sudan, the Republic of the Sudan, the United Republic of Tanzania, the Republic of Uganda, the Republic of Malawi and the Republic of Mozambique of the high level Ministerial Panel on Sustainable Intensification of Maize-Legume Cropping Systems for Food Security in Eastern and Southern Africa (SIMLESA).

Artificial inoculation of maize germplasm at the Naivasha MLN screening site, Kenya. (Photo: B.Wawa/CIMMYT)

New online portal offers information to curb maize lethal necrosis in Africa

Written by on . Posted in News.

Artificial inoculation of maize germplasm at the Naivasha MLN screening site, Kenya. (Photo: B.Wawa/CIMMYT)
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 region’s 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 – three major seed producing countries in Africa – and the data is presented in the portal, detailing MLN’s 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
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 – 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.

CIMMYT’s knowledge sharing efforts contribute to improved seed production in Africa

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Photo: Lewis Machida
Photo: Lewis Machida

NAIROBI, Kenya (CIMMYT) – A staggering 80% of the 67 million inhabitants of central Africa’s Democratic Republic of Congo (DRC) rely on maize for food, despite the country’s underdeveloped national maize breeding and seed production program. The ravages of war may have limited development efforts, but renewed interest in the DRC by regional and global development partners will provide much needed infrastructure and knowledge sharing support.

Even with abundant resources such as water, labor and fertile land, availability of and access to quality seed remains a major hindrance to a thriving agricultural sector in the DRC. According to the state-run agricultural organization, Institut National pour l’Etude et la Recherche Agronomiques (INERA), North and South Kivu provinces in particular still import food from neighboring Rwanda, Uganda and Tanzania, with maize taking up the lion’s share of purchases.

Strategic public-private sector partnerships in agricultural research and development, such as the one between INERA, the International Maize and Wheat Improvement Center (CIMMYT) office in Kenya, and the Alliance for Green Revolution in Africa (AGRA), are an invaluable investment towards growth and sustainability of maize production in the region. AGRA funds multiple agricultural research projects in the DRC, while CIMMYT is renowned for its excellence in maize research globally. It is against this backdrop that breeders, agronomists, technicians and students gathered at the drought-tolerant (DT) maize site in Kiboko, Kenya, for a ten-day training course dubbed ‘Pollinations, Nursery and Trials Management’. The training, held from June 13 – 23, 2016, and jointly supported by CIMMYT and AGRA, and hosted by CIMMYT, emphasized hand pollination in maize variety development and seed multiplication.

Remarks by Stephen Mugo, CIMMYT Regional Representative for Africa, and Maize Breeder, highlighted training as one of the ways CIMMYT supports capacity building and development in the region.

He said, “It is my hope that knowledge and skills imparted during this course will be shared with other professionals at INERA, to improve maize breeding and production capabilities in the DRC.”

The course, organized by CIMMYT Maize Breeder, Lewis Machida, featured a mix of detailed lectures and practical exercises, expertly delivered by various CIMMYT scientists. Presentations covered topics such as basic seed production (hybrids and open pollinated varieties) and maintenance, breeding methods, and maize pollinations including hand pollination.

Photo: Lewis Machida
Photo: Lewis Machida

Hand pollination

Pollination, the process responsible for reproduction and continuity of plant life, is also a breeder’s playground, enabling shuffling of genes, plant adaptation and evolution. In maize breeding, this means development of seeds with tolerance to stresses such as drought, heat, pests and diseases.

Hand pollination, the general term for human intervention in this delicate process, can be further classified into self pollination, and cross pollination. As the name suggests, hand pollination is done by hand, calling for extreme care to minimize contamination and damage of plants.

“Successful production and maintenance of varieties depends largely on hand pollination. Without this process, it would be difficult to produce genetically pure seeds,” says Mugo, adding, “For this reason, hand pollination is considered the core of variety development in maize breeding.”

For the practical sessions of the course, participants deftly carried out the steps in hand pollination, including shoot bagging, pollen collection & placement, and detasseling.

Elois Cinyabuguma, Manager of INERA’s Cereal Unit, shared that the training offered much needed technical skills to scale up seed production in his country, saying, “With CIMMYT germplasm, and sound technical knowledge on multiplication, storage and pest & disease management, DRC is well on its way to setting up a well-rounded maize development program.”

Beyond building the DRC’s capacity for maize breeding and production in general, lessons from the training will be implemented first in North and South Kivu provinces, in hopes of reducing or eliminating maize imports. The event was also a unique opportunity to enhance collaboration among INERA, CIMMYT and AGRA, in anticipation of future shared projects pertaining to maize research, production and distribution.

All participants were issued with a certificate on successful completion of the course.

Presentations from the course are available here.

African ambassadors to Zimbabwe support improved agriculture technologies

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HARARE — Several African nation ambassadors to Zimbabwe pledged to step up support for improved agriculture technologies during a visit to The International Maize and Wheat Improvement Center’s (CIMMYT) Southern Africa Regional Office (CIMMYT-SARO) in Harare, Zimbabwe, in April.

The special field day and meeting, held as part of CIMMYT 50 celebrations, gave ambassadors from 12 African countries (Algeria, Botswana, Democratic Republic of Congo, Ethiopia, Namibia, Nigeria, Sudan, South Sudan, Tanzania, Uganda, South Africa and Zambia) the opportunity to learn about CIMMYT projects that are helping to strengthen food systems in sub-Saharan Africa and discuss future initiatives.

During the visit, the need to develop policies that promote smallholder farmers’ access to technologies that enable them to increase yields and improve crop resilience in the face of challenges such as droughts, as well as policies to address poverty, food security and economic growth surfaced as main priorities for the countries represented.

African ambassadors learned about CIMMYT-promoted agricultural technologies while visiting the CIMMYT-Southern Africa Regional Office (CIMMYT-SARO) in Harare, Zimbabwe. Photo: Johnson Siamachira/CIMMYT
African ambassadors learned about CIMMYT-promoted agricultural technologies while visiting the CIMMYT-Southern Africa Regional Office (CIMMYT-SARO) in Harare, Zimbabwe. Photo: Johnson Siamachira/CIMMYT

In his welcome address, Mulugetta Mekuria, CIMMYT-SARO regional representative, pointed out, “Sub-Saharan Africa’s food security faces numerous challenges, but drought is the most devastating because our farmers rely on rainfed agriculture. As you will see, CIMMYT’s work has created high-level impacts. But a host of challenges still hamper socioeconomic growth, such as reduced funding of agricultural research.”

According to Mekuria, CIMMYT’s work in sub-Saharan Africa aims to ensure farmers can access improved maize seed with drought tolerance and other relevant traits that contribute to higher, more stable yields, as well as technologies such as optimal fertilizer application. He noted that farmers in sub-Saharan African countries lag behind other regions in fertilizer application, applying, on average, less than 10 kg per hectare, which is 10 percent of the world average.

Another issue brought up was the lack of funding of agricultural research for development by most bilateral agencies on which African governments depend. The diplomats pledged to advise their governments of the need to increase support for improved agricultural technologies. They agreed that funding agricultural research work in line with the 2006 Abuja Declaration to allocate at least 1 percent of the donor country’s gross domestic product to agricultural research is of the utmost importance. Enhancing access to markets, extension services and inputs and supporting women and youth in agriculture were also identified as fundamental policy issues that need to be urgently addressed. Strong partnerships and collaborative efforts between various African governments, CIMMYT and the private sector were also called for.

The ambassadors were briefed on CIMMYT’s achievements in the region, and how, in partnership with national agricultural research systems  and private seed companies, they have released more than 200 drought-tolerant maize varieties that perform significantly better under moderate drought conditions than varieties already on the market, while yielding the same – or better – in a normal season. More than 6 million farmers in sub-Saharan Africa grow improved drought tolerant maize varieties developed by CIMMYT and partners.

A wide range of CIMMYT-SARO technologies were also showcased, including sustainable intensification strategies based on the principles of conservation agriculture. Compared to conventional cropping practices, conservation agriculture increases yields after two to five cropping seasons due to the combined benefits of minimum soil disturbance, crop residue retention and crop rotation. Conservation agriculture has been successfully promoted in Malawi, Mozambique, Zambia and Zimbabwe for the past 10 years. For example, yield increases of 20-60 percent were recorded in trials in farmers’ fields in Malawi, while in Zambia and Zimbabwe, yields increased by almost 60% using animal traction innovation agriculture technologies.

Other technologies demonstrated were pro-vitamin A maize and quality protein maize. The diplomats learned that CIMMYT had released eight pro-vitamin A hybrids with 28% more vitamin A content in Zambia (4), Malawi (3) and Zimbabwe (1). On improved varieties, CIMMYT sent 823 seed shipments (1.3 million envelopes) to 835 institutions worldwide over the last four years.

“The success of our projects goes beyond the breeding work. Through the value chain approach, our work now is to ensure that seed companies and, ultimately, maize farmers benefit from the seed that is developed with their needs in mind. Getting drought-tolerant maize and other improved seeds to the markets and farmers is a critical next step,” said James Gethi, CIMMYT seed systems specialist.

Addressing challenges in maize breeding to deliver improved seed to African smallholder farmers

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Members of a CBO that produces improved open-pollinated varieties in Malangeni, Swaziland, host visitors from NSIMA and DTM.

In Swaziland, maize is a staple crop and a source of income for many of the nation’s farmers. “The work on our staple crop cannot be overstated,” said Dr. Vusumuzi Mkhonta, acting director, Department of Agriculture, Research and Specialist Services in Swaziland. “If anything were to happen to maize, the entire population might perish.”

Mkhonta was speaking at the opening ceremony of the annual collaborators meeting, which brought together partners of the New Seed Initiative for Maize in Africa (NSIMA) and the Drought Tolerant Maize for Africa (DTMA) projects in Mbabane, Swaziland, held 13-15 August. Mkhonta recognized the importance of maize research in the country to enhance food security and livelihoods. He also expressed appreciation for support from the Centre for Agricultural Research and Development in Southern Africa (CCARDESA).

Participants discussed some of the challenges in maize breeding that impact the delivery of improved seed. These include the parasitic weed Striga and maize lethal necrosis (MLN), a deadly disease that has affected maize-growing areas in eastern Africa.

The CIMMYT-led NSIMA project, funded by the Swiss Agency for Development and Cooperation (SDC), involves five countries: Botswana, Democratic Republic of Congo (Katanga Province), Lesotho, South Africa and Swaziland. In South Africa, the project is implemented in the Eastern Cape, KwaZulu Natal and Limpopo provinces, serving smallholder farmers who do not have access to maize hybrid seeds. “The large seed companies that operate in South Africa cater to commercial farmers and sell seed in huge quantities,” said James Gethi, CIMMYT seed system specialist and NSIMA project leader. “This means that farmers who need about two to three kilograms of seed are left out of the improved seed network.”

The CBO’s leader addresses visitors from the NSIMA and DTMA projects during the field day.
The CBO’s leader addresses visitors from the NSIMA and DTMA projects during the field day.

Since its inception, the project has been contributing to food and seed security in the southern Africa region. “Within three years, we have delivered 500 tons of open-pollinated varieties (OPVs) of improved seed to smallholder farmers within the NSIMA countries,” said Gethi, citing this as a key highlight of the project.

“Seed production is the second most important pillar for DTMA,” said Dr. Tsedeke Abate, the project leader. Abate indicated that in Kenya, seed production in the past year was significantly lower as a result of MLN disease. Abate highlighted the importance of the partnership between the project and small- to medium-sized seed companies that play an important role in disseminating drought- tolerant maize seed to farmers.

Dr. Abebe Menkir, a maize breeder with the International Institute of Tropical Agriculture (IITA), gave a keynote address during the meeting. “Resistance to Striga is an important trait for maize varieties specifically developed for areas infested with the parasite,” said Menkir. “Let us bring the technologies together to benefit farmers.”

“We need innovative systems for transforming agriculture and research results as business,” said Professor Timothy Simalenga, Executive Director of CCARDESA. Simalenga gave an overview of CCARDESA’s role, which cuts across the research value chain.

Participants visited a seed processing unit in Malangeni, run by a community-based organization (CBO) that currently produces ZM521, an improved OPV. “This women-dominated farmers’ group specializes in producing certified seed for use by the community,” said Gethi. With assistance from the SDC-supported Seed and Markets Project (SAMP), the farmers have acquired machinery. “CIMMYT is providing the group with basic seed and technical support for production of certified seed.”

The DTMA project also awarded country teams for their efforts in breeding and dissemination of drought- tolerant maize during the meeting. The Zimbabwe and Angola teams won the breeding and dissemination awards, respectively. The winners received a plaque and cash prizes.

The NSIMA project is providing improved open-pollinated seed to farmers who did not have access to them before. Project staff and partners pose for a group photo during the annual meeting.

In Swaziland, maize is a staple crop and a source of income for many of the nation’s farmers. “The work on our staple crop cannot be overstated,” said Dr. Vusumuzi Mkhonta, acting director, Department of Agriculture, Research and Specialist Services in Swaziland. “If anything were to happen to maize, the entire population might perish.”

Maize lethal necrosis screening facility seeing signs of success

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CIMMYT pathologist George Mahuku and MLN technician Janet Kimunye examine tassels for pollen production on an infected plant. MLN causes a symptom called ‘tassel blast’ where the tassels of infected plants do not shed or produce pollen. Photos courtesy of George Mahuku

By George Mahuku and Florence Sipalla/CIMMYT

Germplasm screening at the maize lethal necrosis (MLN) screening facility at the Kenya Agricultural Research Institute (KARI) Naivasha is underway, and CIMMYT pathologist George Mahuku said some inoculated lines are showing levels of resistance.

He described the green islands among the maze of yellow in the fields as a demonstration of the success of the testing protocols being used at the site. “This is the lifeline for farmers,” he said. “Next we will be incorporating genes from these lines into adapted germplasm and using the Doubled Haploid facility in Kiboko to quickly develop inbred lines with resistance to MLN.”The deadly maize disease was first identified in Kenya in 2011 and has since been diagnosed in the Democratic Republic of Congo, Rwanda, Tanzania and Uganda. The MLN screening facility was established in 2013 with funding from the Bill & Melinda Gates Foundation and the Syngenta Foundation for Sustainable Agriculture to serve maize breeding institutions in Sub-Saharan Africa in response to 2014 the emergence of the disease.

CIMMYT pathologist George Mahuku inspecting plants that show tolerance to MLN in Naivasha, Kenya.

“To date, we have planted more than 19,000 different types of germplasm on 15 hectares,” Mahuku said. “This germplasm was submitted by both private and public sector partners, including CIMMYT and the International Institute of Tropical Agriculture (IITA).”

All germplasm has been inoculated, Mahuku said, and symptoms are fully visible. Operations at the facility include maintaining pure strains of the viruses that cause MLN, producing inoculum for artificial inoculation, evaluating maize hybrids and inbred lines for response to MLN and building the capacity of stakeholders including scientists, technicians, farmers and extension workers to handle the disease.

The facility also provides employment opportunities for the community, hiring more than 30 people for activities such as weeding, irrigation and disease scoring. Because the facility screens germplasm from different countries, it’s isolated from farmers’ maize plots and certified as a quarantine site. “We still do not fully understand the variability in virus strains, whether the virus strains in Rwanda, Tanzania or Uganda are the same as the ones in Kenya,” said Mahuku.

After disease evaluations, all plant debris will be disposed of by incineration. The facility has received many visitors from universities, international organizations and public and private institutions. “There is a lot of interest in learning and knowing the disease,” Mahuku said.

It recently hosted two scientists from Ethiopia who will share the knowledge gained with their colleagues and will conduct surveys to assess whether the disease is in their country. “To see all this going well is breathtaking,” said CIMMYT technician Janet Kimunye, who is in charge of virus maintenance, inoculum production and inoculations in the field and has been involved in MLN research from the beginning, initially as a consultant to CIMMYT.

“We have assembled a really good team here; watching them work way into the night and weekend is heartening,” said Mahuku. “Everybody wants a solution to this problem that is threatening their food security.”

One of the greenhouses where artificial inoculum is produced and multiplied for research purposes.

Facts about the Facility:

  • Area planted: 15 ha
  • Number of rows: 49,500
  • Total germplasm: 19,539
  • Inoculated area: 6.5 ha
  • Disease expression: 4.5 ha is under disease evaluation as symptoms are expressing well

Sources of Germplasm Sources of Entries Screened

  • CIMMYT/IITA: 13,699
  • Private sector (seed companies): 3,781
  • Public institutions (NARS): 2,059
  • Total: 19,539