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Improved wheat helps reduce women’s workload in rural Afghanistan

Written by Mike Listman on October 12, 2017. Posted in Features.

Afghan women from wheat farming villages in focus-group interviews as part of Gennovate, a global study on gender and agricultural innovation. Photo: CIMMYT archives

EL BATAN, Mexico (CIMMYT) — New research shows improved wheat raises the quality of life for men and women across rural communities in Afghanistan.

A recent report from Gennovate, a major study about gender and innovation processes in developing country agriculture, found that improved wheat varieties emerged overwhelmingly among the agricultural technologies most favored by both men and women.

In one striking example from Afghanistan, introducing better wheat varieties alone reduced women’s work burden, showing how the uptake of technology – whether seeds or machinery – can improve the quality of life.

“Local varieties are tall and prone to falling, difficult to thresh, and more susceptible to diseases, including smuts and bunts, which requires special cleaning measures, a task normally done by women,” said Rajiv Sharma, a senior wheat scientist at the International Maize and Wheat Improvement Center (CIMMYT) and country liaison officer for CIMMYT in Afghanistan. “Such varieties may comprise mixes of several seed types, including seed of weeds. They also give small harvests for which threshing is typically manual, with wooden rollers and animals, picking up sticks, stones, and even animal excrement that greatly complicates cleaning the grain.”

Both women and men spoke favorably about how improved wheat varieties have eased women’s wheat cleaning work. “Improved seeds can provide clean wheat,” said an 18-year old woman from one of the study’s youth focus groups in Panali, Afghanistan. “Before, we were washing wheat grains and we exposed it to the sun until it dried. Machineries have [also] eased women’s tasks.”

Finally, Sharma noted that bountiful harvests from improved varieties often lead farmers to use mechanical threshing, which further reduces work and ensures cleaner grain for household foods.

Gennovate: A large-scale, qualitative, comparative snapshot

Conceived as a “bottom-up” idea by a small gender research team of CGIAR in 2013, Gennovate involves 11 past and current CGIAR Research Programs. The project collected data from focus groups and interviews involving more than 7,500 rural men and women in 26 countries during 2014-16.

According to estimates of the Food and Agriculture Organization of the United Nations (FAO), if women farmers had the same access to resources as men, agricultural output in developing countries would rise by an estimated average of as high as 4 percent. Photo: CIMMYT archives

Some 2,500 women and men from 43 rural villages in 8 wheat-producing countries of Africa and Asia participated in community case studies, as part of the CGIAR Research Program on Wheat.

“Across wheat farm settings, both men and women reported a sense of gradual progress,” said Lone Badstue, gender specialist at CIMMYT and Gennovate project leader. “But women still face huge challenges to access information and resources or have a voice in decision making, even about their own lives.”

According to estimates of the Food and Agriculture Organization of the United Nations (FAO), if women farmers, who comprise 43 per cent of the farm labor force in developing countries, had the same access to resources as men, agricultural output in 34 developing countries would rise by an estimated average of as high as 4 percent.

“Gender-related restrictions such as limitations on physical mobility or social interactions, as well as reproductive work burden, also constitute key constraints on rural women’s capacity to innovate in agriculture,” Badstue explained.

Gender equity drives innovation

The Gennovate-wheat report identified six “positive outlier communities” where norms are shifting towards more equitable gender relations and helping to foster inclusiveness and agricultural innovation. In those communities, men and women from all economic scales reported significantly higher empowerment and poverty reductions than in the 37 other locations. Greater acceptance of women’s freedom of action, economic activity, and civic and educational participation appears to be a key element.

“In contexts where gender norms are more fluid, new agricultural technologies and practices can become game-changing, increasing economic agency for women and men and rapidly lowering local poverty,” Badstue said.

The contributions and presence of CIMMYT in Afghanistan, which include support for breeding research and training for local scientists, date back several decades. In the last five years, the Agricultural Research Institute of Afghanistan (ARIA) of the country’s Ministry of Agriculture, Irrigation & Livestock (MAIL) has used CIMMYT breeding lines to develop and make available to farmers seed of 15 high-yielding, disease resistant wheat varieties.

Read the full report “Gender and Innovation Processes in Wheat-Based Systems” here.

GENNOVATE has been supported by generous funding from the World Bank; the CGIAR Gender & Agricultural Research Network; the government of Mexico through MasAgro; Germany’s Federal Ministry for Economic Cooperation and Development (BMZ); numerous CGIAR Research Programs; and the Bill & Melinda Gates Foundation.

New screening cycle for deadly MLN virus set to begin in Kenya

Written by on October 3, 2017. Posted in News.

The maize lethal necrosis (MLN) artificial inoculation screening site in Naivasha, Kenya will begin its second screening cycle of 2017 at the end of October, interested organizations from both the private and public sectors are invited to send maize germplasm for screening.

In 2013, the International Maize and Wheat Improvement Center (CIMMYT) and the Kenya Agricultural & Livestock Research Organization (KALRO) jointly established the MLN screening facility at the KALRO Naivasha research station in Kenya’s Rift Valley with support from the Bill & Melinda Gates Foundation and the Syngenta Foundation for Sustainable Agriculture.

MLN was first discovered in Kenya in 2011 and quickly spread to other parts of eastern Africa; the disease causes premature plant death and unfilled, poorly formed maize cobs, and can lead to up to 100 percent yield loss in farmers’ fields.

CIMMYT and partners are dedicated to stopping the spread of this deadly maize disease by effectively managing the risk of MLN on maize production through screening and identifying MLN-resistant germplasm. The MLN screening facility supports countries in sub-Saharan Africa to screen maize germplasm (for hybrid, inbred and open pollinated varieties) against MLN in a quarantined environment.

This is the largest dedicated MLN screening facility in East Africa. Since its inception in 2013, the facility has evaluated more than 120,000 accessions from more than 15 multinational and national seed companies and national research programs.

More information about the disease and resources for farmers can be found on CIMMYT’s MLN portal.

Please note that it can take up to six weeks to process imports and clear shipments.

For assistance in obtaining import permits and necessary logistics for the upcoming screening, please contact:

L.M. Suresh
Tel: +254 20 7224600 (direct)

CIMMYT–Kenya, ICRAF House
United Nations Avenue, Gigiri
P.O. Box 1041–00621
Nairobi, Kenya.

Asian scientists join cross-continental training to restrain wheat blast disease

Written by Mike Listman on October 2, 2017. Posted in News.

With backing from leading international donors and scientists, nine South Asia wheat researchers recently visited the Americas for training on measures to control a deadly and mysterious South American wheat disease that appeared suddenly on their doorstep in 2016.

Trainees at the CAICO farm in Okinawa, Bolivia. Photo: CIMMYT archives

Known as “wheat blast,” the disease results from a fungus that infects the wheat spikes in the field, turning the grain to inedible chaff. First sighted in Brazil in the mid-1980s, blast has affected up to 3 million hectares in South America and held back the region’s wheat crop expansion for decades.

In 2016, a surprise outbreak in seven districts of Bangladesh blighted wheat harvests on some 15,000 hectares and announced blast’s likely spread throughout South Asia, a region where rice-wheat cropping rotations cover 13 million hectares and nearly a billion inhabitants eat wheat.

“Most commercially grown wheat in South Asia is susceptible to blast,” said Pawan Singh, head of wheat pathology at the International Maize and Wheat Improvement Center (CIMMYT), an organization whose breeding lines are used by public research programs and seed companies in over 100 countries. “The disease poses a grave threat to food and income security in the region and yet is new and unknown to most breeders, pathologists and agronomists there.”

As part of an urgent global response to blast and to acquaint South Asian scientists with techniques to identify and describe the pathogen and help develop resistant varieties, Singh organized a two-week workshop in July. The event drew wheat scientists from Bangladesh, India, Nepal and Mexico, taking them from U.S. greenhouses and labs to fields in Bolivia, where experimental wheat lines are grown under actual blast infections to test for resistance.

The training began at the U.S. Department of Agriculture-Agricultural Research Service (USDA-ARS) Foreign Disease-Weed Science Research facility at Fort Detrick, Maryland, where participants learned about molecular marker diagnosis of the causal fungus Magnaporthe oryzae pathotype triticum (MoT). Sessions also covered greenhouse screening for blast resistance and blast research conducted at Kansas State University. Inside Level-3 Biosafety Containment greenhouses from which no spore can escape, participants observed specialized plant inoculation and disease evaluation practices.

The group then traveled to Bolivia, where researchers have been fighting wheat blast for decades and had valuable experience to share with the colleagues from South Asia.

“In Bolivia, workshop participants performed hands-on disease evaluation and selection in the field—an experience quite distinct from the precise lab and greenhouse practicums,” said Singh, describing the group’s time at the Cooperativa Agropecuaria Integral Colonias Okinawa (CAICO), Bolivia, experiment station.

Other stops in Bolivia included the stations of the Instituto Nacional de Innovación Agropecuaria y Forestal (INIAF), Asociación de Productores de Oleaginosas y Trigo (ANAPO), Centro de Investigación Agrícola Tropical (CIAT), and a blast-screening nursery in Quirusillas operated by INIAF-CIMMYT.

“Scientists in South Asia have little or no experience with blast disease, which mainly attacks the wheat spike and is completely different from the leaf diseases we normally encounter,” said Prem Lal Kashyap, a scientist at the Indian Institute of Wheat and Barley Research (IIWBR) of the Indian Council of Agricultural Research (ICAR), who took part in the training. “To score a disease like blast in the field, you need to evaluate each spike and check individual spikelets, which is painstaking and labor-intensive, but only thus can you assess the intensity of disease pressure and identify any plants that potentially carry genes for resistance.”

After the U.S.A. and Bolivia, the South Asia scientists took part in a two-week pathology module of an ongoing advanced wheat improvement course at CIMMYT’s headquarters and research stations in Mexico, covering topics such as the epidemiology and characterization of fungal pathogens and screening for resistance to common wheat diseases.

Gary Peterson, explaining wheat blast screening to trainees inside the USDA-ARS Level-3 Biosafety Containment facility. Photo: CIMMYT archives — Gary Peterson (center), explaining wheat blast screening to trainees inside the USDA-ARS Level-3 Biosafety Containment facility. Photo: CIMMYT archives

The knowledge gained will allow participants to refine screening methods in South Asia and maintain communication with the blast experts they met in the Americas, according to Carolina St. Pierre who co-ordinates the precision field-based phenotyping platforms of the CGIAR Research Program on Wheat.

“They can now also raise awareness back home concerning the threat of blast and alert farmers, who may then take preventative and remedial actions,” Singh added. “The Bangladesh Ministry of Agriculture has already formed a task force through the Bangladesh Agricultural Research Council (BARC) to help develop and distribute blast resistant cultivars and pursue integrated agronomic control measures.”

The latest course follows on from a hands-on training course in February 2017 at the Wheat Research Center (WRC) of the Bangladesh Agricultural Research Institute (BARI), Dinajpur, in collaboration with CIMMYT, Cornell University, and Kansas State University.

Participants in the July course received training from a truly international array of instructors, including Kerry Pedley and Gary Peterson, of USDA-ARS, and Christian Cruz, of Kansas State University; Felix Marza, of Bolivia’s Instituto Nacional de Innovación Agropecuaria y Forestal (INIAF); Pawan Singh and Carolina St. Pierre, of CIMMYT; Diego Baldelomar, of ANAPO; and Edgar Guzmán, of CIAT-Bolivia.

Funding for the July event came from the Bangladesh Agricultural Research Institute (BARI), the Indian Council of Agricultural Research (ICAR), CIMMYT, the United States Agency for International Development (USAID) and the Bill & Melinda Gates Foundation (through the Cereal Systems Initiative for South Asia), the Australian Centre for International Agricultural Research (ACIAR), and the CGIAR Research Program on Wheat.

Entrepreneurship increases youth employment in Nepal

Written by on August 11, 2017. Posted in News.

Dahit Traders founder Chullu Ram Chaudhary at his workshop in Bardiya district, Nepal. Photo: CIMMYT/CSISA/A.Khadka

KATHMANDU, Nepal (CIMMYT) – In 2015 Chullu Ram Chaudhary started Dahit Traders, which sells small-scale agricultural machinery in the Bardiya district of mid-western Nepal.

Dahit provides year-round employment to 20 local youths as mechanics and machine operators, and hires an additional 35 mechanics during rice and wheat planting and harvesting seasons. Chaudhary was motivated to found his company in 2014 while attending a machinery training organized by the Cereal Systems Initiative for South Asia (CSISA).

Chaudhary began by focusing on two-wheel tractors and has since expanded his business to several nearby towns, now also providing machine repair services to surrounding districts. His core business has broadened to include a variety of attachments for power tillers, including seed drills, reapers and threshers, all of which are relevant and useful for small-scale farmers of Bardiya and surrounding districts.

Each expansion allows him to provide employment for local youth by creating sales, mechanic and support staff jobs, which has the added benefit of slowing migration from Nepal’s key agricultural production areas. About 1,500 Nepalese youth migrate for foreign employment daily due a lack of employment opportunity and capital constraints in their own communities, a phenomena that directly contributes to agricultural yield loss in Nepal, according to the Food and Agriculture Organization of the United Nations.

This absence of farm labor along with a lack of agricultural knowledge, irrigation and mechanization along with the inability to invest in new technology due to lack of capital also limits Nepal’s yield potential, despite having fertile soil and access to year-round farming. Many plots in Nepal are also very small, due to the traditional inheritance practice of splitting land between sons, further limiting production. Cereal and pulse yields are well below regional averages and present rates of increase won’t meet the long-term requirements.

Success for entrepreneurs like Chaudhary allows farming households to access innovative, scale-appropriate technology, increase employment for youth and boost cropping system productivity, all of which are needed to sufficiently and sustainably increase food production for future generations. In addition to providing training on machinery, CSISA linked Chaudhary with SKT Traders – a national-level importer of small-scale machinery – and provided technical support to Dahit Trader’s mechanics on machinery operation, repair and maintenance.

To increase awareness of scale-appropriate machinery, CSISA and Dahit Traders conducted joint demonstrations of equipment in farmers’ fields in order to help farmers see the potential for these machines to reduce drudgery, increase efficiency and enable them to establish micro enterprises based on custom-hired services.

The Cereal Systems Initiative for South Asia project is led by the International Maize and Wheat Improvement Center with partners the International Rice Research Institute and the International Food Policy Research Institute and funded by the U.S. Agency for International Development and the Bill & Melinda Gates Foundation.

New funding focus on agricultural research key to achieve global development goals

Written by on July 21, 2017. Posted in News.

Delegates at the conference called for different sectors to work together to achieve food security. Photo: P. Lowe/ CIMMYT

NEW YORK (CIMMYT) – Food and agriculture have the potential to be major drivers in helping the international community achieve the U.N. Sustainable Development Goals (SDGs) by 2030, but are currently underutilized, said experts at a side event during the high-level political forum on sustainable development held this month in New York City.

Some 70 percent of the world’s poor live in rural areas where agriculture provides the main source of family income, directly impacting the food security, nutrition and livelihoods of millions, said delegates the Agriculture and Food Day to Implement the Sustainable Development Goals, hosted by the International Agri-Food Network on July 13.

Although agriculture is up to three times more effective than other sectors in boosting incomes of the world’s poorest, it only receives 4 percent of global aid, according to Michael Grant, deputy permanent representative of Canada to the U.N.

The session was organized to draw attention to the many challenges that still exist to prevent the realization of SDG2 “Zero Hunger” – which establishes a framework to end hunger, achieve food security, improve nutrition and promote sustainable agriculture – and consequently several other SDGs. Agriculture is deeply connected to all SDGs that aim to eradicate poverty and promote prosperity, a topic that was discussed by the high-level political forum on sustainable development July 10-19, as the international community took stock of achievements at the two-year mark.

“700 million people continue to live in extreme poverty,” said Peter Thomson, president of the U.N. General Assembly. “We must support global movements that work towards SDG2 so that come 2030, nobody is left behind in hunger or poverty,” he added.

“Despite advances, stunting in children has risen over 20 percent since 1990 in Africa,” said Yemi Akinbamijo, executive director of the Forum for Agricultural Research in Africa. Adding that malnutrition results in an 11 percent loss in GDP each year.

Additionally, the sector is the second largest emitter of global greenhouse gas emissions and the largest driver of deforestation, making agriculture one of the top contributors to climate change and biodiversity loss. At the same time, youth globally are turning away from agriculture, just as the world needs to set its sights on doubling food production over the next three decades.

“The United States needs to fill 60,000 agriculture-related jobs, but universities are only suppling about 60 percent of that demand,” said Jaine Chisholm Caunt, director general of the Grain and Feed trade Association.

How the development community addresses these challenges in our agri-food systems will have a significant impact on the success or failure of other SDGs, including those targeting resource management, ending poverty and malnutrition, building resilient infrastructure and empowering women and girls, argued the delegates.

David Nielson, co-chair of the Global Forum for Rural Advisory Services, cited former wheat breeder and Nobel Peace Prize laureate Norman Borlaug’s philosophy of knowledge sharing as a critical solution. Often the solution to agricultural development doesn’t lie in new technology, but can be as simple as sharing appropriate knowledge that works and is useful to farmers on their land, he said.

However, critical changes in the way farming communities access land and other resources – currently only 1 percent of women and 9 percent of men own land in Africa – must be made at the policy level so that these solutions can be successful in permanently bringing people out of poverty in the long-term, he added.

“When Kenya’s dairy industry became liberalized, my husband and I were able to build our own processing plant,” said Margaret Munene, co-founder and general manager of Palmhouse Dairies Limited Kenya, a dairy processing plant that has grown into a grassroots foundation of “Kenyans helping Kenyans.”

“The processing plant provided a market to farmers,” said Munene. “Before working there many women didn’t have bank accounts in their own names. We worked with microcredit organizations to improve their grazing units, buy better cows and other inputs. We also provided training to improve milk processing, to integrate dairy farming with other crops and other skills that improve income.”

Delegates at the conference also called for different sectors to work together and approach different aspects of the food security puzzle from a holistic perspective. Akinbamijo credited much of Africa’s food and nutrition challenges to the poor integration of science and production systems, with the latest research often failing to translate into the market.

“Governments and other public institutions must work better with the private sector,” added Rocco Renaldi, secretary general, International Food & Beverage Alliance. “Drawing on the expertise of non-state actors can help create novel solutions to agriculture’s challenges.”

Finally, ensuring these solutions don’t come at the expense of the planet is critical if we are to preserve resources for agriculture, said James Hansen, flagship leader with the CGIAR research program on Climate Change, Agriculture and Food Security.

“Farming communities can successfully develop without damaging the environment,” said Maria Beatriz Giraudo, a fifth-generation farmer from Argentina and advocate of no-till farming, an agricultural practice that retains soil moisture, builds up nutrients and improves biodiversity.

The International Maize and Wheat Improvement Center (CIMMYT) supports the SDG agenda to create a new global partnership based on solidarity, cooperation and mutual accountability to eradicate extreme poverty by 2030 and deliver on the promise of sustainable development. See how CIMMYT contributes to 10 of the 17 SDG goals in the Strategic Plan 2017-2022.

Breaking Ground: Hands on experience gives Carolina Camacho insight into farming best practices

Written by on April 26, 2017. Posted in Features.

EL BATAN, Mexico (CIMMYT) – Tending her own crops gives Carolina Camacho insights into the challenges farmers face that she could never have learned in a classroom.

Growing up in the metropolis of Mexico City, the historical and political importance of agriculture was never lost on Camacho, who works as a principal researcher at the International Maize and Wheat Improvement Center (CIMMYT).

“As a teenager, I would debate my sister over the most pressing issue that faced our country, Mexico. For me it was always in agriculture,” Camacho said. “I strongly believe if we are to improve our country, we must improve the lives of our campesinos (smallholder farmers).”

With no knowledge of farming, but with a passion to bring about change, she took to the field, studying crop science at Chapingo University, on the outskirts of the city in the State of Mexico. Having to brave early morning starts, she learned the basics of agriculture, and a love for the genetic diversity of maize.

Mexico, considered the birthplace of maize, is home to a rich diversity of varieties that has evolved over years of domestication by farmers. Camacho was introduced to this diversity firsthand, interning at CIMMYT’s maize germplasm bank as an undergraduate.

Interested in discovering how conserving maize diversity played out in farmers’ fields she gravitated towards an on-farm conservation project in rural Mexico. Working with indigenous farmers, Camacho learned how traditional knowledge and practices relate to environmental management, agricultural production and the diversity of native maize varieties.

After earning a master’s degree in the conservation and utilization of genetic resources, Camacho felt that crop science was isolated from the daily life of farmers. Thus, in a move to study the relationship between humans and plants, she embarked on a multidisciplinary doctoral in the sociology of rural development at Wageningen University in the Netherlands.

While conducting her research, Camacho lived with indigenous farmers in Mexico’s Lacandon rainforest in the state of Chiapas. Alongside local Mayan farmers she cultivated her own milpa – a farming system used by indigenous farmers in Latin America, which typically involves intercropping maize, beans and squash. Her hands-on fieldwork allowed her to study cultivation practices outside the scope of purely agronomic activities, but also as political, social and cultural actions.

“Farming alongside the Tzeltal people, I saw how my own cultivation practices were interwoven with everyday life,” said Camacho. “Farming was influenced by religious ceremonies, health and family affairs as well as political struggles for land. It had to cope, adapt and overcome these challenges.”

Today, these lessons learned guide Camacho as she investigates how agricultural innovations, including drought-tolerant crops, fertilizer and land management approaches can be farmer inclusive and tailored to local contexts as part of CIMMYT’s sustainable intensification strategy for Latin America.

Sustainable intensification aims to enhance the productivity of labor, land and capital. They offer the potential to simultaneously address a number of pressing development objectives, including unlocking the agricultural potential to adapt production systems to climate change, sustainably manage land, soil, nutrient and water resources, improved food and nutrition security, and ultimately reduce rural poverty.

CIMMYT principal researcher Carolina Camacho studies how innovations are promoted and adopted in different regions to aid their smooth delivery to farmers and community members from different genders, ethnicities and ages. — CIMMYT principal researcher Carolina Camacho studies how agricultural innovations are promoted and adopted in different regions to aid their smooth delivery to farmers and community members from different genders, ethnicities and ages. Photo: CIMMYT/ Courtesy of Carolina Camacho

Smallholder farmers, who manage small plots of land and handle limited amounts of productive resources, produce 80 percent of the world’s food. The United Nations calls on these farmers to adopt agricultural innovations in order to sustainably increase food production and help achieve the “Zero Hunger” U.N. Sustainable Development Goal. However, these farmers seldom benefit from new techniques to shore up efforts to meet the goal.

“An agricultural scientist can tell a farmer when and how to plant for optimal results, but they do not farm in a bubble, their practice is affected by the ups and downs of daily life – not only by climate and agronomy but also by social and cultural complexities,” Camacho said.

“One of the biggest challenge is to recognize the heterogeneity of farmers and leave behind the idea of one size solution to their diverse problems and needs,” said Camacho. By understanding a farmer’s lifestyle, including access to resources and information, levels of decision making in the community and the role of agriculture in their livelihood strategy, researchers can best identify complementary farming practices and techniques that not only boost productivity but also improve livelihoods.

“It’s important to think about agricultural innovations as social processes for change in which technologies, like improved seeds or agronomic practices, are only one element,” said Camacho. “It is key that we recognize that changes will not only occur in the farmer’s field but also in the behavior of other actors in the value chain, such as input suppliers, traders, government officials and even researchers.”

Camacho studies how innovations are promoted and adopted in different regions to aid their smooth delivery to farmers and community members from different genders, ethnicities and ages.

When working with indigenous communities, she ensures cultural values of the milpa system are taken into account, thus promoting the agricultural tools and techniques that do not detract from the importance of the traditions associated with the milpa practice.

“The milpa system is a clear example of how agriculture in general and maize in particular contribute to the construction of the cultural identities of indigenous people. We should be aware of the consequences that innovations will have not only for environmental sustainability but also for the sustainability of the Mayan Culture,” she said.

“Let’s not forget, we can’t separate culture from agriculture,” Camacho finished.

Camacho studies the process in which researchers promote agricultural innovations and how farmers adopt them through the Sustainable Modernization of Traditional Agriculture (MasAgro) project, supported by Mexico’s Ministry of Agriculture, Livestock, Rural Development, Fisheries and Food (SAGARPA). Together with other researchers, Camacho has documented how MasAgro is promoting innovations in different regions of Mexico by responding to specific regional challenges and opportunities. Currently she is supporting scaling efforts for these innovations by ensuring that they will be sustainable and inclusive.

In the same line of inclusiveness, Camacho is working with two projects in the milpa system. The first one is the Buena Milpa project funded by U.S. Agency for International Development’s Feed the Future program and in collaboration with the Guatemala Agricultural Science and Technology Institute. The second one is the Milpa de Yucatan project sponsored by a private Mexican foundation in Yucatan Peninsula. Both projects promote sustainable intensification innovations in the milpa systems.

Maize breeding on track for climate change in Africa, scientist urges bigger investments

Written by on April 21, 2017. Posted in News.

A farmer dries maize on his rooftop in Zimbabwe. CIMMYT/ F. Sipalla — A farmer dries maize on his rooftop in Zimbabwe.
CIMMYT/ F. Sipalla

EL BATAN, Mexico (CIMMYT) – 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.

“We see evidence that increased investment works,” said Cairns, a maize physiologist with the International Maize and Wheat Improvement Center (CIMMYT) in Zimbabwe. “Although 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.”

Varieties released by CIMMYT’s 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.

“Breeding is a long term investment but it ultimately pays off through improved varieties for smallholder farmers,” 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.

“We’re constantly changing the breeding pipeline to ensure that the genetic gains are continuously increased,” she added. “Gains 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 we’ve added a lot of new tools and we are incorporating many new technologies to further increase gains.”

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. 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.

“Accessing hybrid seeds can be a real challenge for resource-poor, smallholder farmers in some areas,” Cairns said. “Hybrids 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.”

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. 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.

“Quantifying genetic gain each year is an integral part of our product development process,” said B.M. Prasanna, director of CIMMYT’s Global Maize Program, and the CGIAR Research Program MAIZE. “This 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.”

The research benefits are far-reaching.

In these two first-ever reviews evaluating genetic gains through CIMMYT’s 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 Bänziger, who previously led the CIMMYT maize program, and is now deputy director general of research and partnerships at the organization.

“Use of improved seed has been increasing in sub-Saharan Africa and greater uptake is mostly a question of where the seed sector reaches,” Bänziger said. “The issue of variety replacement is complex. Working with governments and seed companies is a key part of our role.”

The dissemination and adoption of drought tolerant maize could generate as much as $590 million for farmers over a seven-year period, Cairns said. “As we take stock of the important role our work has played in this impoverished and environmentally harsh region, we’re 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.”

Read the research papers:

Gains in Maize Genetic Improvement in Eastern and Southern Africa: 1. CIMMYT Hybrid Breeding Pipeline

Gains in Maize Genetic Improvement in Eastern and Southern Africa: II. CIMMYT Open-Pollinated Variety Breeding Pipeline

New selection method allows for rapid development of improved maize varieties

Written by on March 30, 2017. Posted in News.

Farmers Nuri Bekele, Tefera Tamirat & Melaka Bekele harvest drought tolerant maize in Ethiopia. Photo: P. Lowe/CIMMYT

MEXICO CITY (CIMMYT) – Marker-assisted recurrent selection (MARS) is helping maize breeders develop higher yielding and drought-tolerant improved varieties faster than ever before, according to a recent study from scientists at the International Maize and Wheat Improvement Center (CIMMYT).

“With conventional breeding, it often takes up to 7-8 years for varieties to reach farmers,” said Yoseph Beyene, a CIMMYT maize breeder working with the CGIAR Research Program on Maize (MAIZE) and one of the authors of the study. “With MARS, those varieties take only 5 years to reach farmers, and display greater genetic gain, even under drought conditions”

The study “Improving Maize Grain Yield under Drought Stress and Non-stress Environments in Sub-Saharan Africa using Marker-Assisted Recurrent Selection” found that by using MARS, breeders can develop new maize varieties farmers need faster and cheaper than conventional breeding methods by reducing the breeding cycle, showing scientists which varieties have desired traits at a quicker rate. This study focused on developing improved, drought-tolerant and high-yielding tropical maize varieties for areas such as sub-Saharan Africa that suffer from frequent drought and an unpredictable climate.

“Climate change is changing environments faster than agriculture can naturally adapt,” said Beyene. “It is crucial that farmers are able to access drought-resistant maize varieties as quickly as possible so that they can adapt to these new conditions,” he said.

MARS also dramatically cuts costs by using genotypic data to predict the best maize varieties before planting them. Previously, breeders would have to visually examine and select the best maize varieties every year.

The study found that MARS can be used to improve maize varieties in both drought and optimum environments throughout sub-Saharan Africa, where it is the most important staple food for over 300 million people. The study used MARS to estimate the genetic gain for 10 biparental tropical maize populations and found that overall, the grain yield for the 10 populations increased by 105 kilograms (kg) per hectare per year under well-watered and 51 kg per hectare per year under water-stressed conditions using MARS. The subsequent generations of test crosses were found to have significantly greater grain yields than their parents and commercial checks, suggesting that MARS has excellent potential for increasing genetic gain under both drought and optimum environments in sub-Saharan Africa.

Over 1,000 improved maize lines, including 352 doubled-haploid lines, have been developed from each cycle of the 10 biparental populations used in this study, and tested in multi-location trials. Several hybrids were derived using lines developed through MARS and pedigree methods. The best hybrids from each population are currently under national performance trials and are expected to be released soon for commercialization in sub-Saharan Africa. CIMMYT is one of the first research organizations to apply this technology to maize breeding specifically for the needs of smallholder farmers.

This study was implemented under the Water Efficient Maize for Africa (WEMA) project, supported by the Bill and Melinda Gates Foundation, the Howard G. Buffet Foundation and the U.S. Agency for International Development (USAID).

Read the study “Performance and grain yield stability of maize populations developed using marker-assisted recurrent selection and pedigree selection procedures” published in Euphytica (2016) 208:285–297 for more information.

Despite hardships, women running own households provide model of empowerment and innovation

Written by on March 7, 2017. Posted in Blogs.

GENNOVATE research reveals women-headed households often experience high rates of poverty reduction. Photo: CIMMYT/P. Lowe — GENNOVATE focus groups testified to high rates of poverty reduction in communities with more numerous women-headed households. Photo: CIMMYT/P. Lowe

Sometimes change unfolds where least expected.

In many cultures, households headed by widows are among the poorest and most excluded population groups. Across diverse rural areas, and especially where customary laws continue to exert strong force, widows are fully expected to relinquish their family home, farmlands, livestock and other assets to their deceased husband’s family — leaving them destitute, even as they must alone provide for their children. The impoverishment and ostracism endured by women and children involved in divorce or separation can be even more severe as they may lose respect from the community.

However, stories of resilience, change and achievement emerged from the testimonies of many women running their own households who participated in a recent qualitative study exploring gender and innovation processes in 27 villages in maize farming regions of Ethiopia, Malawi, Mexico, Nepal, Nigeria, Tanzania and Zimbabwe.

The research, conducted under the umbrella of GENNOVATE, a CGIAR comparative research initiative funded by the Bill & Melinda Gates Foundation, explored how gender norms affect agricultural innovation. It showed that many of the “unattached” women in our sample rated themselves as strongly empowered by their experiences with running their households and with managing their own farms and livestock and petty trades to make ends meet. Moreover, focus groups testified to some of the highest rates of poverty reduction in communities where we received reports of more numerous women-headed households.

These findings are consistent with wider trends underway in sub-Saharan Africa where women-headed households now constitute one-in-four of the region’s households and are experiencing faster poverty reduction than male-headed households, according to a recent World Bank study. Heavy male migration is part and parcel of these trends.

In our data we found many widows innovating in their agricultural livelihoods and working their way out of poverty.

“I am proud to say that I am one of them,” said a 42-year-old woman farmer from a village in Ethiopia, describing how she lifted her household out of poverty. “I have been moving up since I divorced my husband and started raising my eight children alone. I have rented land . . . and entered into equb (an informal savings group) to buy inputs for my land. I also am growing vegetables as well as selling firewood.”

In another Ethiopian village, a 35-year-old father of six and farmer relates how a widow in his village escaped poverty and became “known in the area for her bravery.” He shares the story of how she got ahead by processing and selling false banana (a root crop processed into a variety of staple goods) in the market, and using that income to purchase a heifer to get involved in cattle breeding activities.

We also heard about a 48-year-old woman in Ethiopia who separated from her husband and managed to provide for eight children by using farming techniques she learned from him and by planting improved maize seeds. She was also one of the first to cultivate potatoes in her area and became one of the female model farmers of her area.

GENNOVATE case studies reveal more restrictive gender norms in rural Ethiopia than other villages studied. Photo: CIMMYT/P. Lowe

The GENNOVATE case studies set in rural Ethiopia feature more restrictive gender norms — or societal rules governing men’s and women’s everyday behaviors — than many other villages we studied. These are communities where gender norms highly discourage women from participating in household decision making, moving about their village unaccompanied or engaging in paid work. In order to provide for themselves and their children, it is deemed acceptable for women who head their households to work around these social conventions.

Study participants were careful to distinguish between the more fluid gender norms that apply to widows and other women who head their households in comparison to the more restrictive norms for married women.

A participant in the focus group of poor women in a village of Malawi observed that it is easier for a widow to work for pay, “because they have no one to provide for their needs.”

“They are also free to make decisions about working because they are not controlled by their husbands like married women,” she added. In a poor indigenous community of Mexico, a member of the men’s nonpoor focus group declared that the only kind of women to leave their village in order to vend in a market would be widows, because otherwise women “work in the home.”

One of the most unexpected findings to emerge from the GENNOVATE maize case studies is the disproportionate numbers of women who report heading their households in our sample of semi-structured interviews with women “innovators.” They had been identified for these interviews because they are known in their village as liking to try out new things. Among the 54 women innovators interviewed, 21 — nearly 40 percent — report themselves as de jure heads of household — single, widowed, separated, or divorced. This figure does not include women interviewed who report their status as married but whose husbands may be away working. By comparison, among the 54 men innovators interviewed there was only one unmarried man and one widower.

“I have power and freedom to make most major life decisions because I’m now the husband and the wife,” said a 42 year-old widow and mother of six children from 2 to 19 years old from a village in Nigeria.

During her interview, she shared details of how her yields improved from adopting hybrid maize and new practices such as planting only two seeds per hole. “Before now, I used to drop four to five seeds in a hole,” she said, explaining that she learned about improved practices from the local extension agent.

Women who head their households often face great struggles. In Ethiopia, especially, but in other countries as well, testimonies gathered attest to the hard lives, impoverishment, loss of respect and exclusion still endured by women running their own households.

“All the burden is on me,” said a widow from a village in Nigeria, explaining the difficulty of taking responsibility for every aspect of caring for her family.

Yet, across diverse contexts, we find these women moving about the village, accessing information, interacting with the opposite sex, encountering opportunities to apply new learning and assuming leadership positions. Such findings suggest that surveys which target female-headed households, and compare them with male-headed households, may not accurately capture important barriers to agricultural innovations faced by most women.

Our research suggests that women heads of households may offer entry points for strengthening agricultural innovations at the local level as they can provide role models which may help to shift local normative environments for other women and men. More research is needed, however, to identify approaches for supporting these local change agents in ways that ease stigma, work burdens and other risks.

Patti Petesch is GENNOVATE’s expert advisor and a CIMMYT associate researcher.

Lone Badstue chairs the GENNOVATE Executive Committee and CIMMYT’s strategic leader for gender research.

CIMMYT launches new program to promote gender equity in agricultural research

Written by on March 7, 2017. Posted in News.

CIMMYT set to implement a series of training courses to sharpen gender skills in agricultural research for development. Photo: CIMMYT/P. Lowe — CIMMYT is set to implement a series of training courses to sharpen skills in gender and agricultural research for development. Photo: CIMMYT/P. Lowe

EL BATAN, Mexico (CIMMYT) – In a move to bolster gender equity in agriculture, the International Maize and Wheat Improvement Center (CIMMYT) will launch a series of training courses promoting the integration of gender awareness and analysis in research for development.

“Gender is a defining factor in farming and influences many areas, for example, resource ownership and adoption of new technologies,” said Marion Büttner, a gender specialist at CIMMYT. “These courses will help researchers understand the importance of gender roles, relations and norms in agriculture and integrate gender analysis into their work, strengthening agricultural research for development outcomes.”

Although women account for 43 percent of the agricultural labor force in developing countries, they are 30 percent less productive than men, according to the U.N. Food and Agriculture Organization (FAO). This is due mainly to unequal access to extension services and resources, such as land and improved seed.

Despite such trends, agricultural research often fails to include gender analysis in projects, opting instead for a gender-unaware approach that neglects women’s and men’s important roles and their different needs and opportunities in agriculture, Büttner said. “The trainings are an important step to address this gap,” she said.

The Gender Capacity Strengthening Program was developed in partnership with the Royal Tropical Institute (KIT in its Dutch acronym) gender training team and Cultural Practice, LLC. The sessions will be rolled out from April for researchers and support staff at CIMMYT offices in Africa, Asia and Latin America.

The main focus of agriculture for development is to research the biophysical aspects of introducing new agriculture technologies and management practices. This often diverts attention from the social analysis that reveals the human context in which new technologies and practices are introduced, said Franz Wong, a senior gender advisor at KIT who will be one of the training facilitators.

Failing to understand gender issues in a specific local context may cause contrary results to what researchers set out to accomplish, Büttner said. For example, the mechanization of an agricultural activity may lead to reduced drudgery for women. However, the same process may also result in men taking over these now successful activities, which could shift power dynamics between men and women and potentially increase already existing inequalities between genders.

“To gain the most knowledge and impact from agriculture for development initiatives, researchers should consider what impact interventions will have on both men and women,” Büttner said. “The concept of gender is often confused with simply adding women to strategy development, but it’s not that straightforward. It’s about addressing the needs and constraints of both men and women and changing relations to improve the situation for all.”

Büttner refers to gender-responsive research, which is designed to ensure that both women and men benefit from research interventions. It analyzes and takes into account how gender relations influence men and women’s ability to access and adopt improved agricultural technologies, including new knowledge and practices, as well as how policies and other interventions affect women and men differently.

Large donors like the Bill & Melinda Gates Foundation, the United Stated Agency for International Development (USAID) and German Corporation for International Cooperation (GIZ, for its acronyms in German) require gender-responsive research, which is part of the reason why gender analysis must become a standard process for researchers, Büttner added.

The program aims to position gender analysis as a routine process at all stages of the research cycle. Different training modules offer insight into gender-responsive research, including developing and implementing projects with gender integration and setting indicators to measure gender outcomes.

“Raising awareness of the benefits gender analysis has on the impact of agriculture for development projects is the best promoter of its inclusion in research,” said Maitrayee Mukhopadhyay, a senior gender advisor at KIT who aided in the development of the program.

“Many agriculture for development researchers do not see the relevance of gender for their work because they lack adequate training and exposure to gender analysis and knowledge,” she added.

Pilot workshops of the program were delivered last October at CIMMYT’s headquarters and gained strong reviews, with participants reporting increased gender awareness and knowledge of practical methods to integrate gender into projects.

Researchers are keen to integrate gender once they become aware of how gender-responsive research helps to make an assessment of how agriculture is organized in a community, and how it aids the design and delivery of relevant agricultural technologies that complement gender roles or transform them to increase equality, Wong added.

Both Büttner and Wong said the gender training was purposely designed to be practical and interactive so that participants could apply methods to their areas of expertise.

The program will begin in April in Ethiopia, followed by sessions in other CIMMYT offices in Kenya, Zimbabwe, Bangladesh, India, Nepal and Mexico.

Büttner is one of five experts working at CIMMYT as part of the GIZ sponsored CIM Integrated Experts program. The CIM program aims to strategically place managers and technical experts in public and private organizations in the developing world to pass on their professional knowledge and contribute to capacity building.

Breaking Ground: Xuecai Zhang prepares future generation of crop breeders

Written by on February 28, 2017. Posted in Features.

Breaking Ground is a regular series featuring staff at CIMMYT

EL BATAN (CIMMYT) — Xuecai Zhang wants to merge traditional maize breeding methods with new software and other tools to help improve farmers’ yields faster than ever.

“In the next three decades we need to increase agricultural production by 70 percent to meet projected food demand,” said Zhang, a maize genomic selection breeder at the International Maize and Wheat Improvement Center (CIMMYT). “However, crop yields, while improving, are not increasing quickly enough to meet this challenge. We must explore new methods and technologies that can speed up our crop breeding processes if we hope to feed a world with over 2.3 billion more people by 2050.”

Growing up in Henan province, China, Zhang’s mother was a teacher who instilled a love of science in him from a young age.

“I loved exploring outside and seeing how plants grew — I always wanted to know how they worked,” said Zhang. “Maize was naturally interesting to me because it’s the second most grown crop in Henan, and is becoming a very important crop in China overall.”

Zhang first arrived at CIMMYT in 2009 while completing a doctorate in applied quantitative genetics. He subsequently returned as a postdoctoral fellow in 2011 to undertake molecular breeding and coordinate CIMMYT’s maize genomic selection program.

Since his return, he has focused mainly on helping breeders and statisticians work together to create new tools that can help accelerate the breeding process through genomic selection.

“It’s crucial that as breeders, we’re able to use genomic selection in our work,” Zhang said. “Not only does it speed up the breeding process to deliver better, faster results to farmers in the field, applied well it’s also a more cost-effective option.”

Conventional plant breeding is dependent on a researcher going into the field, observing the characteristics of a plant based on how its genotype interacts with the environment, then painstakingly selecting and combining those materials that show such favorable traits such as high yield or drought resistance. This process is repeated again and again to develop new varieties.

Genomic selection adds DNA markers to the breeder’s toolkit. After initial field evaluation breeders are able to use DNA markers and advanced computing applications to select the best plants and predict the best combinations of plants without having to wait to evaluate every generation in the field. This speeds up the development of new varieties as more cycles of selection and recombination can be conducted in a year compared with field selection alone.

The cost of hiring a human to go and collect phenotypic data for conventional breeding is increasing, while conversely the costs associated with genomic selection are getting lower as genotyping and computing technology becomes more affordable, according to Zhang.

“Breeders need to think about where the technology is pushing our field,” he said. “They will increasingly have to be versed statisticians and computer scientists to effectively apply genomic selection to their work, and I want to help ensure they have the skills and tools to make the most of the technology.”

Zhang has helped demonstrate to breeders in Latin America, Africa and Asia of the value of genomic selection by showing that the technique can improve the prediction accuracy of successful varieties in comparison to conventional breeding. He also credits joint efforts like the GOBII project, a large-scale public-sector effort supported by the Bill & Melinda Gates Foundation, to apply genomic selection techniques to crop breeding programs across the developing world, as key towards curating the necessary data for genomic breeding programs.

“In the future, I hope to continue to help build better tools for breeders to move towards genomic selection,” Zhang said. “I chose to breed maize because of the potential impact it has to help smallholder farmers globally. Compared with other crops the yield potential of maize is very high, so I want to ensure we are using the best resources available that will help maize reach its full potential.”

Breaking Ground: Monica Mezzalama keeps vital check on seed health and biosafety

Written by on February 22, 2017. Posted in Features.

Monica Mezzalama, head of CIMMYT's Seed. Photo: Xochiquetzal Fonseca/CIMMYT. — Monica Mezzalama, head of CIMMYT’s Seed Health Laboratory. Photo: Xochiquetzal Fonseca/CIMMYT.

Breaking Ground is a regular series featuring staff at CIMMYT

EL BATAN, Mexico (CIMMYT) — At the International Maize and Wheat Improvement Center (CIMMYT) it all starts with a seed. Each year, the non-profit receives requests and sends more than 700,000 packets of seed to researchers, agricultural organizations and farmers around the world from its headquarters near Mexico City. These seeds stand up to climate change, produce higher yields with fewer resources and provide the nutrition a growing global population needs.

However, before each seed travels across an international border, it is essential to ensure that each one has a clean bill of health, free from virus, fungus and bacteria pathogens. Infected seeds must be controlled or there is a risk that plant pathogens will spread, affecting crop health and potentially threatening food security.

That is where plant pathology expert Monica Mezzalama, head of CIMMYT’s Seed Health Laboratory, gets involved.

“Seed movement around the world is regulated to limit the spread of pathogens across international borders,” said the senior scientist. “I coordinate and supervise seed health testing to ensure all seeds that pass through CIMMYT meet these international standards and do not pose a risk.”

Securing the health of seeds ensures that researchers, breeders and partner organizations don’t encounter infected seed and is essential to maintaining efficient agricultural research that has impact, she added.

Since taking the helm of the Seed Health Laboratory 15 years ago, all seed that has been inspected on its way out of CIMMYT must meet certification. If unhealthy seed is found it must be quarantined and destroyed under the law, explained Mezzalama.

Seeds arriving from partner organizations, researchers or farmers are also tested for disease and granted a “seed release” by Mezzalama and her team. Authorized seed then moves on to CIMMYT researchers to be studied for disease resistance, heat tolerance and micronutrient content and added into international breeding programs. Others are placed in the maize and wheat germplasm bank, where over 175,000 different varieties are preserved on behalf of humanity and are freely available to all upon request.

A curiosity for disease and a passion to cure led Mezzalama to a career as a plant pathologist. While studying for an undergraduate degree in agronomy in her hometown of Turin, Italy, she visited nearby vineyards to study plant pathogens for the first time.

“It was working in the vineyards where I first saw plant pathogens at work and where I saw the impact they have on farmers, and what it means for their livelihoods,” she said.

After graduating in 1986, Mezzalama began her first job at CIMMYT working alongside virologist Peter Burnett on a project dedicated to barley yellow dwarf (BYD) virus, which effects barley, wheat, maize, rice and other grasses worldwide. The experience opened her mind to a new world where she learned the inner workings of plant pathogens and started to study for a doctoral degree in plant pathology in Italy.

Since returning to CIMMYT in 2001, Mezzalama has led the Seed Health Laboratory, set institutional biosafety protocols to protect against harmful incidents, which include regular reviews of the biosafety in laboratory settings, as well as well as guidelines to follow, and participated in several research projects. Most recently, she joined a project to control the spread of Maize Lethal Necrosis (MLN), a devastating virus that poses a severe risk to food security in eastern Africa.

The complex disease results from the infection of two deadly viruses, maize chlorotic mottle virus and sugar cane mosaic virus. It spreads through infected maize seed and insect pests. Mezzalama’s skill in plant pathology detection was called upon to organize the opening of seed health laboratories in Kenya and Zimbabwe and also train staff on how to detect seed infected with MLN or the two associated viruses.

Currently, Mezzalama is in the final stages of developing a standard of detection protocol, providing the agriculture industry with knowledge of best practices and affordable tools to detect MLN infected maize seed.

“There are several products and methods that may be used for MLN detection in seed, these must be tested to see which obtain the most accurate results efficiently while taking into price into account,” she said.

Accuracy, time and cost are important factors when developing MLN detection protocols as common practice, implemented by partners in Kenya and other impacted countries, she explained.

Key donors to CIMMYT’s efforts in controlling MLN include the CGIAR Research Program on Maize (MAIZE), the United States Agency for International Development (USAID), the Bill & Melinda Gates Foundation (BMGF), Syngenta Foundation for Sustainable Agriculture (SFSA), the Association for Strengthening Agricultural Research in Eastern and Central Africa (ASARECA), the Alliance for a Green Revolution in Africa (AGRA), the Kenya Agriculture and Livestock Research Organization (KALRO), and the Rwanda Agriculture Board (RAB), CGIAR Fund Donors and other generous contributors to CIMMYT maize research.

Surveillance training to control wheat blast in Bangladesh

Written by on February 14, 2017. Posted in News.

Bleached spikes infected with wheat blast hold shriveled grain, if any. Photo: E. Duveiller/CIMMYT

DINAJPUR, Bangladesh (CIMMYT) — Responding to a 2016 outbreak of the deadly and little-understood crop disease “wheat blast” in Bangladesh, 40 wheat pathologists, breeders and agronomists from Bangladesh, India and Nepal have gathered to hone their skills through surveillance exercises in farmers’ fields and molecular analysis of the causal fungus in laboratories of the Bangladesh Agricultural Research Institute (BARI) at Gazipur.

Entitled “Taking action to mitigate the threat of wheat blast in South Asia: Disease surveillance and monitoring skills training,” the 13-day program was launched on 4 February at BARI’s Wheat Research Center (WRC), Bangladesh Agriculture Research Institute (BARI), Dinajpur, in collaboration with the International Maize and Wheat Improvement Center (CIMMYT), the CGIAR research program on wheat, the Delivering Genetic Gain in Wheat (DGGW) project led by Cornell University, and Kansas State University (KSU).

The 2016 Bangladesh outbreak was the first time wheat blast has appeared in South Asia. The disease struck 15,000 hectares in 7 southwestern and southern districts of Bangladesh, with crop losses averaging 25-30 percent and reaching 100 percent in some cases.

In response the Bangladesh Ministry of Agriculture formed a task force through the Bangladesh Agricultural Research Council (BARC) to help develop and distribute resistant cultivars and pursue integrated agronomic control measures. A factsheet distributed to wheat farmers is raising awareness about the disease and particularly its identification and management.

Caused by the fungus Magnaporthe oryzae pathotype Triticum (MoT) and first discovered in Paraná State, Brazil, in the mid-1980s, wheat blast constitutes a major constraint to wheat production in South America. The sudden appearance of a highly virulent MoT strain in Bangladesh presents a serious threat for food and income security in South Asia, home to 300 million undernourished people and whose inhabitants consume over 100 million tons of wheat each year.

Experts from CIMMYT, Cornell University and Kansas State University, along with scientists from BARI and Bangladesh Agricultural University (BAU), are serving as instructors and facilitators.

“This training will increase the capacity of Bangladesh and neighboring country scientists, thereby strengthening research on wheat blast and monitoring disease through intensive surveillance,” said the Additional Secretary (Research), Ministry of Agriculture Md. Fazle Wahid Khondaker, chief guest in the inaugural session. Arun K. Joshi, CIMMYT-India country representative, T.P. Tiwari, CIMMYT-Bangladesh country representative, Prof. Dr. Bahadur Meah from BAU, Mymensingh, and Additional Director, Department of Agricultural Extension, and Md. Julfikar Haider were present as special guests. Dr. N.C.D. Barma, WRC, BARI chaired the session, and BARI Director General Dr. Abul Kalam Azad took part.

The training program is funded by BARI, CIMMYT, DGGW, the United States Agency for International Development (USAID) and the Bill & Melinda Gates Foundation through the CIMMYT-led Cereal Systems Initiative for South Asia (CSISA) and CSISA- Mechanization projects, as well as the Australian Center for International Agricultural Research (ACIAR). The DGGW project is funded by the Bill & Melinda Gates Foundation and the United Kingdom’s Department for International Development (DFID) through UK Aid.

Participants with guests during training inauguration. Photo: S. Khan/CIMMYT

CIMMYT scientist cautions against new threats from wheat rust diseases

Written by on February 8, 2017. Posted in News.

David Hodson, senior scientist with CIMMYT, trains South Asian wheat scientists on the use of handheld surveillance and monitoring devices. Hodson directs the rusttracker.org global wheat rust monitoring system for the Delivering Genetic Gain in Wheat (DGGW) project. Credit: CORNELL/Linda McCandless

EL BATAN, Mexico (CIMMYT) – Scientists are concerned over the proliferation of highly virulent fungal wheat diseases, including two new races of yellow rust – one in Europe and North Africa, the other taking hold in East Africa and Central Asia – and a new race of stem rust emerging in Europe.

The collaborative Global Rust Reference Center (GRRC) hosted by Aarhus University in Denmark and including the International Maize and Wheat Improvement Center (CIMMYT) and the International Center for Agricultural Research in the Dry Areas (ICARDA), was instrumental in identifying the new races of yellow and stem rust.

A strategic tool developed by David Hodson, a senior scientist with CIMMYT plays a key role in monitoring the movement of wheat-rust pathogens, helping farmers combat the disease in time to save crops and prevent food insecurity.

“We see an alarming increase in severe disease, more disease diversity and rapid spread,” said Hodson, who invented the Rust Tracker field surveillance tool.

Last year, the Italian island of Sicily was badly hit by a strain of wheat stem rust – an event not seen in Europe since the 1950s, following concerted efforts by wheat breeders to eliminate it.

Stem rust appears as a reddish-brown fungal build-up on wheat stems or leaves, stunting and weakening plants, preventing kernels from forming, leading to shriveled grain and potential crop losses of 50 to 100 percent.

Dispersal modeling, undertaken by the University of Cambridge and the UK Met Office, which forecasts weather and climate change, indicates that spores from the Sicilian outbreak could potentially have spread within the Mediterranean wheat growing region, but scientists are unsure whether they will successfully over-winter, surviving and proliferating, according to a recent story in the journal Nature.

EARLY WARNING

“Several factors may be influencing the changes and rapid spread: increased travel and trade; increasing pathogen populations; more uniform cropping systems and also climate change, but the rapid changes we are observing highlight the need for an enhanced early-warning system,” said Hodson, a member of an international team of scientists collaborating under the Delivering Genetic Gain in Wheat (DGGW) project administered by Cornell University through the Borlaug Global Rust Initiative (BGRI).

Scientists engaged with the major four-year international project – which has a budget of $34.5 million due to grants equalling $24 million from the Bill & Melinda Gates Foundation and a recent $10.5 million grant from UK Aid (Britain’s Department for International Development, or DFID) – use comparative genomics and big data to develop new wheat varieties. The aim is to help governments provide smallholder farmers in the developing world with seeds incorporating resilience to environmental stresses and diseases through local entrepreneurial distributors.

“The sooner farmers are notified of a potential rust outbreak, the better chance they have to save their crops through fungicides or by planting resilient wheat varieties,” Hodson said.

“It’s a constant challenge. We’re always on the lookout for new diseases and variants on old diseases to put the wheels in motion to aid governments who can distribute seeds bred specifically to outsmart rusts.”

However, the long-term sustainability of these vital disease-monitoring systems is uncertain. Despite the significant investments, challenges remain, Hodson said.

“It’s worrying that just as stem rust is re-appearing in Europe we’re at risk of losing the only stem rust pathotyping capacity in Europe at GRRC, due to a funding shortfall. Given the threats and changes we are observing, there really is a critical need for a long-term strategy to address major crop diseases.”

TRACKER ORIGINS

The online Rust Tracker was originally conceived as a tool to battle stem rust, including the lethal Ug99 race, which since its discovery in 1998 has spread from Uganda into the Middle East and is now found in 13 countries. If Ug99 takes hold in a field it can completely wipe out a farmer’s crop. In developing countries, farmers have more difficulty accessing and affording fungicides, which can potentially save a crop.

Under the Durable Rust Resistance in Wheat project, the predecessor to the DGGW project, BGRI-affiliated scientists aimed to prevent the spread of Ug99 into the major global breadbaskets of China and India. So far, they have succeeded in keeping it in check and raising awareness among governments and farmers of its potentially devastating impact.

“Researchers and farmers are connected in the global village,” Hodson said. “Plant pathogens know no borders. We must leave no stone unturned in our efforts to understand the dynamics of wheat rusts, how they’re changing, where they’re spreading and why. If wheat scientists can help prevent a food crisis, we’re doing our job to help maintain political and economic stability in the world.”

Wheat rust poses food security risk for global poor, says DFID’s Priti Patel

Written by on December 5, 2016. Posted in Features.

David Hodson, CIMMYT senior scientist (L), describes the challenges posed by wheat rust to Priti Patel, Britain's international development secretary, during the Grand Challenges Annual Meeting in London. Handout/DFID — David Hodson, CIMMYT senior scientist (L), describes the challenges posed by wheat rust to Priti Patel, Britain’s international development secretary, during the Grand Challenges Annual Meeting in London. DFID/handout

LONDON (CIMMYT) – International wheat rust monitoring efforts are not only keeping the fast-spreading disease in check, but are now being deployed to manage risks posed by other crop diseases, said a scientist attending a major scientific event in London.

Although initially focused on highly virulent Ug99 stem rust, the rust tracking system – developed as part of the Borlaug Global Rust Initiative, an international collaboration involving Cornell University and national agricultural research programs – is also used to monitor other fungal rusts and develop prediction models with the aim of helping to curtail their spread.

“We appear to be looking at some shifts in stem rust populations with the Digalu race and new variants increasing and spreading,” said David Hodson, a senior scientist with the International Maize and Wheat Improvement Center (CIMMYT), who showcased the latest research findings at the recent Grand Challenges meeting in London hosted by the Bill & Melinda Gates Foundation.

“Our data reinforce the fact that we face threats from rusts per se and not just from the Ug99 race group – we are fortunate that international efforts laid the groundwork to establish a comprehensive monitoring system,” said Hodson, one of more than 1,200 international scientists at the gathering.

“The research investments are having additional benefits,” he told Priti Patel, Britain’s secretary of state for international development, explaining that the wheat rust surveillance system is now also being applied to the deadly Maize Lethal Necrosis disease in Africa.

“The learning from stem rust and investments in data management systems and other components of the tracking system have allowed us to fast-track a similar surveillance system for another crop and pathosystem.”

In a keynote address, echoed by an opinion piece published in London’s Evening Standard newspaper authored by Patel and billionaire philanthropist Bill Gates, Patel described the risks posed by wheat rust to global food security and some of the efforts funded by Britain’s Department for International Development (DFID) to thwart it.

“Researchers at the University of Cambridge are working with the UK Met Office and international scientists to track and prevent deadly outbreaks of wheat rust which can decimate this important food crop for many of the world’s poorest people,” Patel said, referring to collaborative projects involving CIMMYT, funded by the Gates Foundation and DFID

Patel also launched a DFID research review at the meeting, committing the international development agency to continued research support and detailing how the UK intends to deploy development research and innovation funding of £390 million ($485 million) a year over the next four years.

Wheat improvement work by the CGIAR consortium of agricultural researchers was highlighted in the research review as an example of high impact DFID research. Wheat improvement has resulted in economic benefits of $2.2 to $3.1 billion per year and almost half of all the wheat planted in developing countries.