CIMMYTâs work in Africa helps farmers access new maize and wheat systems-based technologies, information and markets, raising incomes and enhancing crop resilience to drought and climate change. CIMMYT sets priorities in consultation with ministries of agriculture, seed companies, farming communities and other stakeholders in the maize and wheat value chains. Our activities in Africa are wide ranging and include: breeding maize for drought tolerance and low-fertility soils, and for resistance to insect pests, foliar diseases and parasitic weeds; sustainably intensifying production in maize- and wheat-based systems; and investigating opportunities to reduce micronutrient and protein malnutrition among women and young children.
The Multimedia team at the International Maize and Wheat Improvement Center (CIMMYT) and our producers around the world kept busy in 2020. They uploaded 50 videos to our YouTube channel and countless more to our social media, intranet and training platforms!
We shot much of this video on location in Svalbard, north of the Arctic Circle, where freezing temperatures put our cameras to the test â but the most challenging part of production was yet to come. After a global pandemic was declared, we had to shoot our first-ever socially distanced interviews, guide people to record themselves and coordinate editing remotely.
Travel with us to the Global Seed Vault, where maize and wheat seeds from CIMMYT’s genebank are are safely backed up.
Half a century ago, scientists collected and preserved samples of maize landraces in Morelos, Mexico. Now, descendants of those farmers were able to get back their ancestral maize seeds and, with them, a piece of their family history.
It is not very often that we are able to use soap opera-style drama to convey science. In this video, actors dramatize the human stakes of the battle against fall armyworm.
At the end of the video, graphics and images show techniques developed by CIMMYT and partners to help real farmers beat this pest.
An online training takes farmers and service providers though a visual journey on the use of conservation agriculture-based sustainable intensification methods.
A series of videos â available in Bengali, Hindi and English â demonstrates the process to become a zero-till farmer or service provider: from learning how to prepare a field for zero tillage to the safe use of herbicides.
In the first installment of this video series for social media, CIMMYTâs maize and wheat quality experts Natalia Palacios and Itria Ibba explain what whole grains are and why they are an important part of healthy diets.
Douglas Mungai holds up soil on his farm in Murangâa county, Kenya. (Photo: Robert Neptune/TNC)
There is a growing crisis beneath our feet. Scientists, soil specialists and policy-makers around the world are sounding the alarm about degrading soil conditions. And it is particularly stark in developing countries. In fact, about 40 per cent of soils in sub-Saharan Africa are already of poor quality.
Declining soil health causes poor crop yields, leading to further pressure on the soils as farmers struggle to meet food demands and eke out a living. Many farmers lack access to information or technologies to get out of this vicious cycle. If you are a farmer with the need to increase your yield in the face of these challenges, crop breeding and soil management offers a range of solutions as part of an Integrated Soil Fertility Management (ISFM) approach.
For instance, breeding programs which partner with CGIAR Excellence in Breeding (EiB) are working to deliver the best seed varieties for farmers to help them withstand harsh conditions and increase yields. Alongside this work, researchers are supporting farmers to adopt better agronomic practices, such as minimum tillage farming, crop rotation, proper spacing and planting date practices, the use of terracing or intercropping, or techniques to reduce water use.
Of course, breeding cannot happen in a vacuum. To protect soils and produce quality yields, these cropping measures should be closely matched to the best, context-appropriate soil management practices available to farmers, for instance around the type and timing of mineral fertilizer, along with organic sources like crop residues, compost or manure.
Indeed, a combination will bring the best results. Â But most of the time accessing either improved variety or best agronomic practice represent a challenge for farmers in low income countries.
Here are three ways crop breeders can ensure they deliver the best seeds and create the best conditions for long-term crop production.
Include farmers, agronomic experts and extension services when defining product requirements
Strong connections among public breeding programs and extension and agronomic groups are vital. There is growing discussion regarding how to broaden our work to better consider all the factors that contribute to a successful breeding scheme: genotyping, environment and management (GxExM). However, defining the management component is not easy. Do we breed for conditions that farmers are actually working with, or breed for conditions that they should adopt?
A key to answer this question is a strong breeding team defining the traits needed and wanted by farmers. To design the best product profile, it is imperative to involve extension teams and other groups that work on the development of sustainable agronomic practices.
A man inspects a drought-tolerant bean plant on a trial site in Malawi. (Photo: Neil Palmer/CIAT)
Properly manage research stations
Attention also needs to focus on the sustainability practices within research stations. It is all too easy to find degraded soil in public research stations. There are many reasons for this: inadequate long-term planning, lack of organized management structures, insufficient connections between breeding and agronomic teams, and lack of resources, to name a few.
Public research stations must serve as an example for the farmers in that specific region. Thus, it is not only what products we develop that matters, but also how we develop them. If we develop a good variety at the research station, but do so without adopting good agronomic practice, what example has been set for farmers and future generations? We need to ensure we invest in the best soil management practices along every step of the research phase.
Breed for specific soil characteristics
Once the breeding target is known, breeding for specific soil conditions is critical. This means developing varieties for soil conditions such as nutrient deficiencies or high salinity levels. CGIAR breeding programs have put in tremendous efforts with great impact here.
For example, AfricaRice and partners developed rice varieties branded ARICA (Advanced Rice Varieties for Africa) to be salt or iron toxicity tolerant, among other traits. This is helping farmers who farm under predominantly rainfed conditions, in which soils and yields are threatened by floods, droughts and toxicity.
Another standout product is Stress Tolerant Maize for Africa (STMA), led by the International Maize and Wheat Improvement Center (CIMMYT) and the International Institute of Tropical Agriculture (IITA). Breeders have developed varieties that can thrive in low soil fertility conditions, along with resistance to other stresses such as pests and drought. The project has seen the adoption of new maize varieties by more than six million households across 13 countries, with some farms increasing yields by over 150 per cent.
Our soils depend on breeding for the future. Breeding is showing real results for improving yields, delivering better food, and increasing smallholder incomes. But its impact on ecosystems could go either way. With the right investments in relationships, good research practices, and delivering varieties matched to particular soil conditions, we can breed for the present and for the future.
It is time to invest in both crop breeding and soil management â as one vital package of innovations.
The active involvement of partners in the co-design of project and capacity building activities is key to the success of the Accelerating Genetic Gains in Maize and Wheat for Improved Livelihoods (AGG) project, led by the International Maize and Wheat Improvement Center (CIMMYT). To that end, the AGG Regional Collaborative Breeding and Testing Networks launched with virtual meetings on September 14 and 15 for southern African partners, and October 28 and November 2 for eastern African partners.
These training events and regional meetings provided opportunities for well over 100 breeders from CIMMYT, national agricultural research systems (NARS) and seed companies to refresh their capacities to improve genetic gains, and to collectively review and discuss upcoming project activities, current issues of interest, and broader project objectives within their current regional context.
Several themes of importance to partners emerged during the network virtual meetings, for attention in future AGG activities and capacity development work.
Gender inclusion and the impact of COVID-19
Ugandan partners, including Godfrey Asea, director of the National Crops Resources Research Institute at Ugandaâs National Agricultural Research Organization, and Josephine Okot, founder and managing director of Victoria Seeds, applauded the projectâs emphasis on inclusion of womenâs knowledge and preferences in breeding programs.
âWe notice that this time there is a lot of focus on gender-inclusiveness,â remarked Asea. âI can tell you there is need for enhanced capacity building for both the private sector and research in proper gender inclusion.â
They also noted the importance of building local capacity, not just for food security but also for other value chain items like raw materials. âCOVID-19 has demonstrated to all policy-makers that we cannot depend on the global supply chains,â said Okot. âHow can we leverage this project if, for instance, some private sector actors want to [know] the appropriate protein-content maize for, say, animal feed?â
Godfrey Asea (R), director of the National Crops Resources Research Institute (NaCRRI) at Ugandaâs National Agricultural Research Organization (NARO), and Daniel Bomet (L), a maize breeder at NARO, admire maize cobs on a farm in Uganda. (Photo: Joshua Masinde/CIMMYT)
Demand for knowledge
NARS members in Tanzania requested increased support on how to measure or assess genetic gains, especially at the national level, to allow them to establish a baseline upon which genetic gains would be pegged for the project lifecycle.
With statistics an essential element to plant breeding â from analyzing yield trials to ranking varieties â the webinar series in Statistical Analysis for Plant Breeders was a first step towards meeting these capacity development needs.
âThe idea of this webinar series was to share insights on how we can improve the breeding plans using statistical methods in an effective way,â said Juan Burgueño, the head of CIMMYTâs Biometrics and Statistics Unit. âThe training offered both theory and hands-on experience using open-access software.â
Reaching farmers
Looking beyond breeding, meeting participants also discussed how to improve access and adoption of improved varieties among farmers.
âFor a large country such as Tanzania, it is at times very hard to reach the farmers,â said Zabron Mbwaga, managing director of the Tanzania-based Beula Seed Company and Consultancy Limited. âWe may have a lot of seed in the store, but how to get the farmers to adopt the newer varieties is quite difficult. This is more so when farmers tend to stick to varieties which they know well and are always reluctant to adopt the new varieties,â he explained.
âWe need to put in a lot of effort to set up demonstration farms and enhance other awareness-raising activities such as radio programs so that farmers can know about the new varieties.â
This interest in working with smallholder farmers along the entire value chain was echoed by partners in southern Africa.
âThrough this project, we would like to explore ways of collaborating along the whole value chain â as the Agriculture Research Council, other partners and small to medium enterprises â to make it an effective chain,â said Kingstone Mashingaidze, senior research manager at the South Africa Agricultural Research Council. âBy planning together, we can identify best-fits for all activities in the value chain and ultimately benefit the smallholder farmers.â
About the AGG Regional Collaborative Breeding and Testing Networks
The AGG Regional Collaborative Breeding and Testing Networks aim to improve breeding efficiencies among partners by enabling the use of modern tools and approaches and enriching the existing network of research organizations, public and private seed companies, farmersâ organizations, non-governmental organizations and community-based organizations. It is expected that these networks will lead to increased efficiency and communications across the partnership network and within countries, improved sharing of best practices and protocols, and increased collective ownership of products for accelerated variety development and turnover.
The virtual meetings for the Regional Collaborative Breeding and Testing Network for southern Africa convened participants from Malawi, Mozambique, South Africa, Zambia and Zimbabwe, while meetings for eastern Africa had participants from Ethiopia, Kenya, Tanzania and Uganda.
AGG communications staff Joshua Masinde and Shiela Chikulo contributed to this story.
A new small-mechanization pilot initiative launched in July is equipping farmers with the business and technical skills they need to provide mechanization services to communities in six wards of Masvingo district, Zimbabwe.
With funding from the Swiss Agency for Development and Cooperation (SDC) managed by the United Nations World Food Program (WFP), the International Maize and Wheat Improvement Center (CIMMYT) is leading implementation of the pilot in collaboration with Kurima Machinery and the Zimbabwe Agriculture Development Trust (ZADT), who are supporting the technical training and financial management, respectively.
Anchored on a strong business model, 15 farmers have signed up to become service providers and invested an initial deposit of $500 to access the mechanization package comprising a two-wheel tractor and trailer, a direct planter and a maize cob sheller. Through a âlease-to-ownâ credit facility, eligible service providers will have 24 months to pay the remaining balance for the set of equipment.
âThis approach addresses re-payment challenges in past interventions, where equipment was distributed without a firm commitment from the service providers and without putting in enough effort to establish a viable business,â says Christian Thierfelder, a cropping systems agronomist at CIMMYT. âAn advantage of this new form of financial commitment by the service providers is that it guarantees full participation and a change in their perception towards farming as a business.â
Since 2013, smallholder farmers in Zimbabwe have been exposed to the benefits of combining small-mechanization with conservation farming systems to improve productivity â land preparation, planting and harvesting to achieve higher yields while reducing production costs. Besides making farming tasks more efficient for individuals, this set of equipment can be used to provide critical services to other farmers in their wards.
The two-wheel tractor can have various implements attached to it for services such as planting, transportation and shelling. It can also be used to run other important implements such as water pumps, mills or threshers.
This mechanization pilot therefore presents an additional pathway out of poverty and into sustainable production and income generation at household level, while boosting the local economy and rural employment in Masvingo district.
Service providers, extension officers and CIMMYT staff pose for a group photo after completing a training course at Gwebi Agricultural College, Zimbabwe. (Photo: Shiela Chikulo/CIMMYT)
Training for local service provision
Eligible service providers were recently invited to attend a one-week specialized business and technical training course at Gwebi Agricultural College, just outside of Harare. The training package consisted of two main components: business management; and two-wheel tractor operation, maintenance and repair.
Elliot Zvovovo, a participating service provider, explains how the balanced training approach equipped him fully with all the knowledge and skills he needs to run his business. âI learned different ways of record keeping, managing income and treating my clients professionally,â he says.
âOn the machinery side, I learned about of all the parts of a two-wheel tractor and practiced assembling the engine so that maintenance and repair will be easy for me.â
Julius Shava, another participating service provider, agrees, adding that knowing how to maintain the two-wheel tractor and troubleshooting will also minimize costs of hiring external mechanics to attend to faults. âI realized the importance of routine checks for oil and water levels, how to crank-start the tractor and hitch the planter all by myself.â
Supporting agricultural extension in line with service providers is critical to mainstreaming transformational change in rural areas. As such, seven local extension officers â key partners in the implementation of small-mechanization activities â were also invited to participate in the training.
âThe training proved to be very effective, particularly the emphasis on mastering business principles and on the technical side, integrating service providersâ existing knowledge of conservation farming with small-mechanization,â says Canaan Zhakata, an extension officer for Ward 15.
Through the practical sessions, all service providers have now learned how to operate a two-wheel tractor, calibrate the direct planter for seed and fertilizer rates and use the sheller â giving them full technical skills and knowledge,â explains Dorcas Matangi, a research associate at CIMMYT.
The certification they have received will increase farmersâ confidence as they return to Masvingo to commence service delivery, with continued on-site support from their local extension officers. âOnce we return to Masvingo, we can assist the new service providers by monitoring their service delivery to ensure full compliance with the technical requirements for operating the machinery,â says Tsvakai Dumbu, an extension officer for Ward 17.
A service provider starts a two-wheel tractor while other participants look on at a training at Gwebi Agricultural College, Zimbabwe. (Photo: Shiela Chikulo/CIMMYT)
A profitable business for the local economy
This mechanization pilot is poised for success as it draws on existing positive results gained by the women and youth service providers in western Zimbabwe, who are running successful mechanized enterprises following the recently completed Farm Mechanization and Conservation Agriculture for Sustainable Intensification (FACASI) project.
âDuring a recent seed fair, we heard of a youth group in Makonde that is making up to $7,000 just from maize shelling services,â says Zvovovo. âKnowing that it takes just one day to shell up to three tons of maize with the sheller, I now know that reaching such an income is achievable.â
This pilot will prove that there is scope for small-mechanization to expand on productivity through the two-wheel tractor, trailer and sheller, as shown in other parts of eastern and southern Africa. It will explore leverages on the opportunities and demand for services in Masvingo.
Cover image:Â An extension officer from Masvingo district drives a two-wheel tractor during a training for service providers and extension officers at Gwebi Agricultural College, Zimbabwe. (Photo: Shiela Chikulo/CIMMYT)
To adequately confront rapidly changing plant pests and diseases and safeguard food security for a growing population, breeders â in collaboration with their partners â have to keep testing and applying new breeding methods to deliver resilient seed varieties at a much faster rate using minimal resources. Molecular markers are essential in this regard and are helping to accelerate genetic gains and deliver better seed to smallholders across sub-Saharan Africa in a much shorter timeframe.
Progress made so far in molecular plant breeding, genetics, genomic selection and genome editing has contributed to a deeper understanding on the role of molecular markers and greatly complemented breeding strategies. However, phenotyping remains the single most costly process in plant breeding, thus limiting options to increase the size of breeding programs.
Application of molecular markers increases the ability to predict and select the best performing lines and hybrids, prior to selection in the field. âThis enables breeders to expand the size of a breeding program or the populations they work on using the same amount of resources,â says Manje Gowda, a maize molecular breeder at the International Maize and Wheat Improvement Center (CIMMYT).
âThere are three stages in the use of molecular markers: discovery, validation and deployment,â he explains. âAt the discovery phase, the objective is to find molecular markers associated or tightly linked with the trait of interest, while also assessing whether the trait is more complex or easier to handle with few markers for selection.â
The molecular markers identified at the discovery stage are validated in independent bi-parental or backcross populations, and the marker trait associations â which are consistent across different genetic backgrounds and diverse environments â are then moved to the deployment stage. Here, they are considered for use in breeding either as part of marker assisted selection or forward breeding, marker assisted back crossing and marker assisted recurrent selection.
Screening for resistance markers
CIMMYT scientists have discovered several marker trait associations for crop diseases including maize lethal necrosis (MLN), maize streak virus (MSV), corn rust and turcicum leaf blight. All these trait-associated markers have been validated in biparental populations.
For MLN, after screening several thousands of lines, researchers identified a few with resistance against the viral disease, namely KS23-5 and KS23-6. These lines were obtained from synthetic populations developed by Kasetsart University in Thailand and serve as trait donors. Researchers were able to use these as part of forward breeding, producing doubled haploid (DH) lines by using KS23-6 as one parent and screening for the presence of MLN resistance genes.
âThis screening helps eliminate the lines that may carry susceptible genes, without having to phenotype them under artificial inoculation,â says Gowda. âThese markers are also available to all partners to screen for MLN resistance, thereby saving on costs related to phenotyping.â
Scientists also used these MLN resistance markers to introgress the MLN resistance into several elite lines that are highly susceptible to the disease but have other desirable traits such as high grain yield and drought tolerance. The marker-assisted backcrossing technique was used to obtain MLN resistance from the KS23-5 and KS23-6 donor lines. This process involves crossing an elite, commercial line â as a recurrent parent in the case of CIMMYT elite lines â with a donor parent line (KS23) with MLN resistance. These were then backcrossed over two to three cycles to improve the elite line carrying MLN resistance genes. In the past three years, more than 50 lines have been introgressed with the MLN resistance gene from KS23-6 donor line.
Aida Zewdu Kebede, a PhD student at the University of Hohenheim, sits next to an experimental plot for doubled haploid maize in Agua FrĂa, Mexico. (Photo: Thomas Lumpkin/CIMMYT)
An impetus to breeding programs
âThe work Manje Gowda has been carrying out is particularly important in that it has successfully moved from discovery of valuable markers and proof-of-concept experiments to scalable breeding methods which are being used effectively,â says CIMMYT Trait Pipeline and Upstream Research Coordinator Mike Olsen. âEnabling routine implementation of molecular markers to increase selection efficiency of breeding programs in the context of African maize improvement is quite impactful.â
At CIMMYT, Gowdaâs team applied genomic selection at the early stage of testing the breeding pipeline for different product profiles. âThe objective was to testcross and phenotype 50% of the Stage One hybrids and predict the performance of remaining 50% of the hybrids using molecular markers,â Gowda explains.
The team have applied this strategy successfully each year since 2017, and the results of this experiment show that selection efficiency is the same as when using phenotypic selection, but using only 32% of the resources. From 2021 onwards, the aim is to use the previous yearâs Stage One phenotypic and genotypic data to predict 100% of the lines. This will not only save the time but improve efficiency and resource use. The previous three-year Stage One historical data is helping to reduce the phenotyping of lines from 50% to 15%, with an increase in saving resources of up to 50%.
For the commercial seed sector, integrating molecular marker-based quality control measures can help deploy high-quality seeds, an important factor for increasing crop yields. In sub-Saharan Africa, awareness on marker-based quality has improved due to increased scientist and breeder trainings at national agricultural research systems (NARS), seed companies and national plant protection organizations, as well as regulators and policymakers.
Currently, many NARS and private sector partners are making it mandatory to apply marker-based quality control to maintain high-quality seeds. Since NARS and small- and medium-sized seed companiesâ breeding programs are smaller, CIMMYT is coordinating the collection of samples from different partners for submission to service providers for quality control purposes. CIMMYT staff are also helping to analyze quality control data and interpret results to sharing with partners for decision-making. For the sustainability of this process, CIMMYT is training NARS partners on quality control, from sample collection to data analyses and interpretation, and this will support them to work independently and produce high-quality seed.
Such breeding improvements have become indispensable in supporting maize breeding programs in the public and private sectors to develop and deliver improved maize varieties to smallholder farmers across sub-Saharan Africa.
A farmer in Tanzania stands in front of her maize plot where she grows improved, drought tolerant maize variety TAN 250. (Photo: Anne Wangalachi/CIMMYT)
Ethiopia-born Rahel Assefa began her career as a software engineer in a childrenâs hospital in Washington DC, USA. Although she enjoyed this work for the first few years, she found that it was not as fulfilling as she had initially hoped.
Rahel slowly started shifting gears towards a new career, initially pursuing an MSc in Project Management. âI knew that I was meant to work in an area where I would have direct interaction and impact, so I really thrived in that environment,â she explains.
Her work was highly appreciated by senior managers and she quickly progressed in this new career path. âI was soon recruited to help build a project management office from scratch and that solidified my interest in the field.â
A return to Africa
Rahel remained in health care for the next few years, taking on roles in portfolio and business relationship management but ultimately, she knew her next step would be to return to Africa and work in a field that contributes to supporting peopleâs livelihoods.Â
In 2015, Rahel learned of a job opening at the International Maize and Wheat Improvement Center (CIMMYT) which was suitable to her skillset and would also serve her desire of moving to Africa. She applied and joined the organization in February 2016, moving to Addis Ababa with her young family in tow. âWe had always discussed returning to Africa, and preferably to Ethiopia, so this was a welcome move. But it was also a big leap into the unknown because both my husband and I had left Ethiopia during our formative years,â she says.
Rahel had also never worked in the agricultural sector before joining CIMMYT, so there was a steep learning curve to contend with, as well as the cultural shifts she had to make to adjust to her new work environment. âI remember spending my first few days on the job taking the time to just observe, listen actively and ask questions.âÂ
Rahel now works as a project manager and as the regional program manager for CIMMYTâs Sustainable Intensification Program in Africa. âWorking at CIMMYT is interesting because I get to collaborate with such a diverse group of people, and we can see that our work has a direct impact on the day-to-day lives of farmers,â she says. âItâs always rewarding to see first-hand how the life of a farmer, woman or young person is transformed because of the work we do.â
âI also find working at CIMMYT’s Ethiopia office enjoyable simply because everyone gets along well,â she explains. Rahel particularly appreciates the Thursday morning coffee gatherings for staff hosted at the International Livestock Research Institute (ILRI) campus, and her frequent interactions with colleagues in Kenya and Zimbabwe, where she travels regularly. âI love having the opportunity to see the work colleagues do on the ground across Africa and Iâm always in awe of their dedication to the work they do.â
When sheâs not visiting projects in Nairobi or Harare, Rahel cherishes the time she spends with her family and young son, Adam, who seems to be developing a keen interest in agriculture himself. âHe loves visiting âmommyâs officeâ from time to time,â she explains, âand as a result he has recently even attempted to plant maize and wheat in our back garden.â
Rahel Assefa tests out farm machinery in Addis Ababa, Ethiopia. (Photo: Simret Yasabu/CIMMYT)
Rahel Assefa works with CIMMYT’s Sustainable Agrifood Systems (SAS) program, serving as regional project manager for Africa and project manager for various projects across East and Southern Africa.
Rahel works closely with project leaders and head office units to develop operational plans, and manages budgets, contracts and subgrants. She supports donor reporting and proposal development, serves as a liaison with donors and implementing partners, and more.
How do you create the largest market for stress-tolerant seed away from a major business center and attract over 1000 smallholder farmers in two days? Organize a seed fair to strengthen knowledge and information sharing.
The availability, access and use of climate-resilient seed by smallholder farmers in Zimbabwe is often hampered by transport costs, the distance between farming areas and viable seed markets, lack of public transport to business centers, and the inflated prices of seed and inputs by local agro-dealers. As a result, resource-poor farmers who cannot afford to purchase inputs resort to exchanging local seed retained or recycled from informal markets. This has devastating effects on farmersâ productivity, food and nutrition security.
Under the Zambuko/R4 Rural Resilience Initiative, the International Maize and Wheat Improvement Center (CIMMYT) is promoting climate-smart technologies and appropriate seed varieties alongside conservation agriculture (CA) systems in Masvingo district, Zimbabwe. Since 2018, mother and baby trials have successfully yielded results for smallholders in Ward 17 and additional mother trials have been introduced in Ward 13.
To overcome the challenges of seed access, CIMMYT partnered with eight seed companies â including Agriseeds, Mukushi and SeedCo â to host two seed fairs in October, targeting farmers in Wards 13 and 17. The intervention sought to address seed insecurity while reducing the knowledge gap on available stress-tolerant seed varieties by smallholder farmers.
Groundwork preparations led by the Department of Agriculture and Extension Services (AGRITEX) mobilized farmers from the host wards as well as farmers from neighboring wards 15, 19 and 25. In light of the ongoing COVID-19 pandemic, regulations relating to social distancing, the use of masks and sanitization were adhered to throughout the events.
Climate-smart seed choices
A key message delivered to the more than 1000 farmers who attended the seed fairs was the importance of their preference when selecting the right seed for their field. âFarmers must be critical when selecting seed and ensure that their preferred seed will perform well under the prevailing climatic conditions to give a good harvest,â said CIMMYT seed systems specialist Peter Setimela.
Seed company representatives were offered a platform to market their varieties and explain the benefits of each product on the market while leaving it to the farmers to decide on the most suitable variety for their own needs. âFarmers came early for the seed fairs and showed interest in our products,â said Norman Chihumo, a regional agronomist at Syngenta Distributors. âWe recorded fairly good sales of seed and chemicals through cash purchases and vouchers.â
Later in the day, farmers toured the seed company stands to see the diverse maize varieties and small grains on offer â including millet and sorghum, cowpeas and groundnuts â and heard testimonials from participants in the mother and baby trials. âListening to a success story from a farmer I know gives me the confidence to follow suit and buy seed that works in this harsh climate of ours,â said Joice Magadza, a farmer from Ward 17.
Local farmer Happison Chitono agreed. âI never used to grow cowpeas on my plot,â he explained, âbut after learning about the ability it has to fix nitrogen into my soil and possibility of rotating the legume with maize, I am now gladly adding it to my seed input package.â
Muza Vutete, a baby-trial farmer shares the advantages of adopting conservation farming principles at a seed fair in Masvingo, Zimbabwe. (Photo: Shiela Chikulo/CIMMYT)
A seed fair is also a knowledge market
A key highlight of the seed fair was the learning platform promoting CIMMYTâs ongoing activities under the Zambuko/R4 Rural Resilience Initiative. Here, cropping systems agronomist Christian Thierfelder shared the objectives of this initiative with participating farmers.
âWe know how good this seed is, but we also have to grow it in a sustainable way, so we make best use of the limited rainfall we receive in this area while we improve our soils,â he explained to farmers. âCropping systems such as conservation agriculture combine no-tillage, mulching and crop rotation in a climate-smart agriculture way which enables farmers to harvest enough, even under heat and drought stress.â
Thierfelder also demonstrated the use of farm equipment promoted by CIMMYT in collaboration with Kurima Machinery, explaining how these can help reduce drudgery and save time on planting, transport and shelling.
Representatives from Kurima machinery conduct a demonstration of the two-wheel tractor during the seed fair in Masvingo, Zimbabwe. (Photo: Shiela Chikulo/CIMMYT)
Vouchers for transparent seed access
The seed fairs culminated in the distribution of seed and input vouchers. One hundred farmers were selected through a transparent raffle and redeemed their vouchers at their preferred seed company stands. They then also had the option to purchase additional seed, fertilizer and chemicals using their own cash.
Particularly high sales were recorded for Provitamin A orange maize, which sold out on both seed fair days. Stress-tolerant varieties such as ZM 309 and ZM 523 from Zimbabwe Super Seeds, ZM521 from Champion Seeds, and MRI 514 from Syngenta were also favorites among the farmers, while white sorghum and cowpea varieties such as CBC2 also sold well. Most of these varieties were already known to farmers as they had seen them growing for two years in CIMMYTâs mother trials of Ward 17.
The seed fairs ended on a high note with a total of 1.2 tons of seed sold to farmers on both days and agro-dealers hailed the fairs as a timely business venture for creating linkages and bringing seed suppliers on-site to assess their shops. A post-seed fair monitoring exercise will soon follow up on farmersâ use of the seed and the performance of demo packs and purchased varieties.
The Zambuko/R4 Rural Resilience Initiative supported by the United States Agency for International Aid (USAID), Swiss Agency for Development and Cooperation (SDC) and the World Food Programme (WFP) aims to increase farmer resilience and capacity to withstand climatic shocks and stresses in rural communities of Masvingo, Mwenezi and Rushinga in Zimbabwe.
The first meetings of the Accelerating Genetic Gains in Maize and Wheat for Improved Livelihoods (AGG) wheat and maize science and technical steering committees â WSC and MSC, respectively â took place virtually on 25th and 28th September.
Researchers from the International Maize and Wheat Improvement Center (CIMMYT) sit on both committees. In the WSC they are joined by wheat experts from national agricultural research systems (NARS) in Bangladesh, Ethiopia, Kenya, India, and Nepal; and from Angus Wheat Consultants, the Foreign, Commonwealth & Development Office (FCDO), HarvestPlus, Kansas State University and the Roslin Institute.
Similarly, the MSC includes maize experts from NARS in Ethiopia, Ghana, Kenya and Zambia; and from Corteva, the Foundation for Food and Agriculture Research (FFAR), the International Institute for Tropical Agriculture (IITA), SeedCo, Syngenta, the University of Queensland, and the US Agency for International Development (USAID).
During the meetings, attendees discussed scientific challenges and opportunities for AGG, and developed specific recommendations pertaining to key topics including breeding and testing scheme optimization, effective engagement with partners and capacity development in the time of COVID-19, and seed systems and gender intentionality.
Discussion groups noted, for example, the need to address family structure in yield trials, to strengthen collaboration with national partners, and to develop effective regional on-farm testing strategies. Interestingly, most of the recommendations are applicable and valuable for both crop teams, and this is a clear example of the synergies we expect from combining maize and wheat within the AGG project.
All the recommendations will be further analyzed by the AGG teams during coming months, and project activities will be adjusted or implemented as appropriate. A brief report will be submitted to the respective STSCs prior to the second meetings of these committees, likely in late March 2021.
The Government of Ethiopia has consistently prioritized agriculture and sees it as a core component of the countryâs growth. However, despite considerable efforts to improve productivity, poor management of soil health and fertility has been an ongoing constraint. This is mainly due to a lack of comprehensive site-and context-specific soil health and fertility management recommendations and dissemination approaches targeted to specific needs.
The government envisions a balanced soil health and fertility system that helps farmers cultivate and maintain high-quality and fertile soils through the promotion of appropriate soil-management techniques, provision of required inputs, and facilitation of appropriate enablers, including knowledge and finance.
So far, a plethora of different research-for-development activities have been carried out in support of this effort, including the introduction of tools which provide location-specific fertilizer recommendations. For example, researchers on the Taking Maize Agronomy to Scale in Africa (TAMASA) project, led by the International Maize and Wheat Improvement Center (CIMMYT), have created locally calibrated versions of Nutrient ExpertÂź (NE) â a tool for generating fertilizer recommendations â for maize farmers in Ethiopia, Nigeria and Tanzania.
Nutrient ExpertÂź is only one of the many fertilizer recommendation tools which have been developed in recent years covering different levels of applicability and accuracy across spatial scales and users, including smallholder farmers, extension agents and national researchers. However, in order to make efficient use of all the resources available in Ethiopia, there is a need to systematically evaluate the merits of each tool for different scales and use cases. To jump start this process, researchers from the TAMASA project commissioned an assessment of the tools and frameworks that have been developed, adapted and promoted in the country, and how they compare with one another for different use-cases. Seven tools were assessed, including Nutrient ExpertÂź, the Ethiopian Soil Information System (EthioSIS) and RiceAdvice.
For each of these, the research team asked determined how the tool is currently being implemented â for example, as an app or as a generic set of steps for recommendation generation â and its data requirements, how robust the estimates are, how complicated the interface is, how easy it is to use, the conditions under which it performs well, and the spatial scale at which it works best.
Farmer Gudeye Leta harvests his local variety maize in Dalecho village, Gudeya Bila district, Ethiopia. (Photo: Peter Lowe/CIMMYT)
Combining efforts and information
The results of this initial assessment indicate that the type of main user and the scale at which decisions are made varied from tool to tool. In addition, most of the tools considered have interactive interfaces and several â including Nutrient ExpertÂź and RiceAdvice â have IT based platforms to automate the optimization of fertilizer recommendations and/or analyze profit. However, the source codes for all the IT based platforms and tools are inaccessible to end-users. This means that if further evaluation and improvements are to be made, there should be a means of collaborating with developers to share the back-end information, such as site-specific response curves and source codes.
Because most of the tools take different approaches to making fertilizer application site-specific, each of them renders unique strengths and trade-offs. For example, Nutrient ExpertÂź may be considered strong in its approach of downscaling regionally calibrated responses to field level recommendations based on a few site-specific responses from farmers. By contrast, its calibration requires intensive data from nutrient omission trials and advice provision is time consuming.
Overall, the use of all the Site-Specific Decision-Support Tools (SSDST) has resulted in improved grain yields compared to when farmers use traditional practices, and this is consistent across all crops. On average, use of Nutrient ExpertÂź improved maize, rice and wheat yields by 5.9%, 8.1% and 4.9%, respectively. Similarly, the use of RiceAdvice resulted in a 21.8% yield advantage.
The assessment shows that some of the tools are useful because of their applicability at local level by development agents, while others are good because of the data used to develop and validate them. However, in order to benefit the agricultural system in Ethiopia from the perspective of reliable fertilizer-use advisory, there is a need to develop a platform that combines the merits of all available tools. To achieve this, it has been suggested that the institutions who developed the individual tools join forces to combine efforts and information, including background data and source codes for IT based tools.
While the COVID-19 pandemic has disrupted efforts to convene discussions around this work, CIMMYT has and will continue to play an active advocacy role in supporting collaborative efforts to inform evidence-based reforms to fertilizer recommendations and other agronomic advice in Ethiopia and the wider region. CIMMYT is currently undertaking a more rigorous evaluation of these tools and frameworks as a follow up on the initial stocktaking activity.
Usman Kadir and his family de-husk maize on their farm in Ethiopia. (Photo: Apollo Habtamu/ILRI)
The current COVID-19 pandemic â and associated measures to reduce its spread â is projected to increase extreme poverty by 20%, with the largest increase in sub-Saharan Africa, where 80 million more people would join the ranks of the extreme poor. Accelerating the process of delivering high-quality, climate resilient and nutritionally enriched maize seed is now more critical than ever.However, developing these varieties is not a rapid or cheap process. Over the course of five years, researchers on the Stress Tolerant Maize for Africa (STMA) project developed a range of tools and technologies to reduce the overall cost of producing a new high yielding, stress tolerant hybrids for smallholder farmers in the region.
Maize breeding starts with crossing two parents and essentially ends after testing their great-great-great-great grandchildren in as many locations as possible. This allows plant breeders to identify the new varieties which will perform well in the conditions faced by their target beneficiaries â in the case of STMA, smallholder farmers in Africa. In other parts of the world, new tools and technologies are routinely added to breeding programs to help reduce the cost and time it takes to produce new varieties.
Scientists on the STMA project focused on testing and scaling new tools specifically for maize breeding programs in sub-Saharan Africa and began by taking a closer look at the most expensive part of the breeding process: phenotyping or collecting precise information on plant traits.
âWithin a breeding program, phenotyping is the single most costly step,â explains CIMMYT molecular breeder Manje Gowda. âMolecular technologies provide opportunities to reduce this cost.â The research team tested two methods to speed up this step and make it more cost efficient: forward breeding and genomic selection.
Speeding up a long and costly process
Two important traits maize breeders look for in their plant progeny are susceptibility for two key maize diseases: maize streak virus (MSV) and maize lethal necrosis (MLN). In traditional breeding, breeders must extensively test lines in the field for their susceptibility to these diseases, and then remove them before the next round of crossing. This carries a significant cost.
Using a process called forward breeding, scientists can screen for DNA markers known to be associated with susceptibility to these diseases. This allows breeders to identify lines vulnerable to these diseases and remove them before field testing.
Scientists on the STMA project applied this approach in CIMMYT breeding programs in eastern and southern Africa over the past four years, saving an estimated $300,000 in field costs. Under the AGG project, research will now focus on applying forward breeding to identify susceptibility for another fast-spreading maize pest, fall armyworm, as well as extending use of this method in partnersâ breeding programs.
A CIMMYT research associate inspects maize damaged by fall army worm at KALRO Kiboko Research Station in Kenya. (Photo: Peter Lowe/CIMMYT)
Forward breeding is ideal for âsimpleâ traits which are controlled by a few genes. However, other desired traits, such as tolerance to drought and low nitrogen stress, are genetically complex. Many genes control these traits, with each gene only contributing a little towards overall stress tolerance.
In this case, a technology called genomic selection can be of service. Genomic selection estimates the performance, or breeding value, of a line based largely on genetic information. Genomic selection uses more than 5,000 DNA markers, without the need for precise information about what traits these markers control. The method is ideal for complicated traits such as drought and low nitrogen stress tolerance, where hundreds of small effect genes together largely control how a plant grows under these stresses.
CIMMYT scientists used this technology to select and advance lines for drought tolerance. They then tested these lines and compared their performance in the field to lines selected conventionally. They found that the two sets of resulting hybrid varieties â those advanced using genomic selection and those advanced in the field â showed the same grain yield under drought stress. However, genomic selection only required phenotyping half the lines, achieving the same outcome with half the budget.
Innovations in the field
While DNA technology is reducing the need for extensive field phenotyping, research is also underway to reduce the cost of the remaining necessary phenotyping in the field.
Typically, many traits â such as plant height or leaf drying under drought stress â are measured by hand, using the labor of large teams of people. For example, plant and ear height is traditionally measured by a team of two using a meter stick.
Mainasarra Zaman-Allah, a CIMMYT abiotic stress phenotyping specialist based in Zimbabwe, has been developing faster, more accurate ways to measure these traits. He implemented the use of a small laser sensor to measure plant and ear height which only requires one person. This simple yet cost effective tool has reduced the cost of measuring these traits by almost 60%. Similarly, using a UAV-based platform has reduced the cost of measuring a trait known as canopy senescence â leaf drying associated with drought susceptibility âby over 65%.
The identification of plants which are tolerant to key diseases has traditionally involved scoring the severity of disease in each plot visually, but walking through hundreds of plots daily can lead to errors in human judgement. To combat this, CIMMYT biotic stress phenotyping specialist LM Suresh collaborated with Jose Luis Araus and Shawn Kefauver, scientists at the University of Barcelona, Spain, to develop image analysis software that can quantify disease severity, thereby avoiding problems associated with unintentional human bias.
Plant breeders need uniform, or homozygous, lines for selection. With conventional plant breeding this is difficult: no matter how many times you cross a line, a small amount of DNA will remain heterozygous â having two different alleles of a particular gene â and reduce accuracy in line selection.
A technology called doubled haploid allows breeders to develop homozygous lines within two seasons. While this technology has been used in temperate maize breeding programs since the 1990s, it was not available for tropical environments until 10 years ago. In 2013, thanks to joint work with Kenyan partners at the CIMMYT Doubled Haploid facility in Kiboko, this technology was made available to African breeding programs. Now Vijay Chaikam, a CIMMYT doubled haploid specialist based in Kenya, is working towards reducing the cost of this technology as well.
The efforts begun by the STMA research team is now continuing under the Accelerating Genetic Gains in Maize and Wheat for Improved Livelihoods (AGG) project. As this work is carried forward, the next crucial step is ensuring that the next generation of African maize breeders have access to these technologies and tools.
âImproving national breeding programs will really drive success in raising maize yields in the stress prone environments faced by many farmers in our target countries,â says Mike Olsen, CIMMYTâs upstream trait pipeline coordinator. Under AGG, in collaboration with the CGIAR Excellence in Breeding Program, these tools will be scaled out.
Where agriculture relies heavily on manual labor, small-scale mechanization can reduce labor constraints and contribute to higher yields and food security. However, demand for and adoption of labor-saving machinery remains weak in many areas. Paradoxically, this includes areas where women face a particularly high labor burden.
âHow do we make sense of this?â asks Lone Badstue, a rural development sociologist at the International Maize and Wheat Improvement Center (CIMMYT). âWhat factors influence womenâs articulation of demand for and use of farm power mechanization?â
To answer this question, an international team of researchers analyzed data from four analytical dimensions â gender division of labor; gender norms; gendered access to and control over resources like land and income; and intra-household decision-making â to show how interactions between these influence womenâs demand for and use of mechanization.
âOverall, a combination of forces seems to work against womenâs demand articulation and adoption of labor-saving technologies,â says Badstue. Firstly, womenâs labor often goes unrecognized, and they are typically expected to work hard and not voice their concerns. Additionally, women generally lack access to and control over a range of resources, including land, income, and extension services.
This is exacerbated by the gendered division of labor, as womenâs time poverty negatively affects their access to resources and information. Furthermore, decision-making is primarily seen as menâs domain, and women are often excluded from discussions on the allocation of labor and other aspects of farm management. Crucially, many of these factors interlink across all four dimensions of the authorsâ analytical framework to shape womenâs demand for and adoption of labor-saving technologies.
A diagram outlines the links between different factors influencing gender dynamics in demand articulation and adoption of laborsaving technologies. (Graphic: Nancy Valtierra/CIMMYT)
Demand articulation and adoption of labor-saving technologies in the study sites are shown to be stimulated when women have control over resources, and where more permissive or inclusive norms influence gender relations. âWomenâs independent control over resources is a game changer,â explains Badstue. âAdoption of mechanized farm power is practically only observed when women have direct and sole control over land and on- or off-farm income. They rarely articulate demand or adopt mechanization through joint decision-making with male relatives.â
The study shows that independent decision-making by women on labor reduction or adoption of mechanization is often confronted with social disapproval and can come at the cost of losing social capital, both within the household and in the community. As such, the authors stress the importance of interventions which engage with these issues and call for the recognition of technological change as shaped by the complex interplay of gender norms, gendered access to and control over resources, and decision-making.
âI wonder why I never considered using drip irrigation for all these years,â says Michael Duri, a 35-year-old farmer from Ward 30, Nyanga, Zimbabwe, as he walks through his 0.5-hectare plot of onions and potatoes. âThis is by far the best method to water my crops.â
Duri is one of 30 beneficiaries of garden drip-kits installed by the International Maize and Wheat Improvement Center (CIMMYT), an implementing partner under the Program for Growth and Resilience (PROGRESS) consortium, managed by the Zimbabwe Resilience Building Fund (ZRBF).
âIn June 2020, I installed the drip kit across 0.07 hectares and quickly realized how much water I was saving through this technology and the reduced amount of physical effort I had to put in,â explains Duri. By September, he had invested in two water tanks and more drip lines to expand the area under drip irrigation to 0.5 hectares.
Michael Duri stands with his son and mother next to his potato field in Nyanga, Zimbabwe. (Photo: Shiela Chikulo)
Water woes
Zimbabwe’s eastern highland districts like Nyanga are renowned for their diverse and abundant fresh produce. Farming families grow a variety of crops â potatoes, sugar beans, onions, tomatoes, leafy vegetables and garlic â all year round for income generation and food security.
Long poly-pipes lining the district â some stretching for more than 10 kilometers â use gravity to transport water from the mountains down to the villages and gardens. However, in the last five-to-ten years, increasing climate-induced water shortages, prolonged dry spells and high temperatures have depleted water reserves.
To manage the limited resources, farmers access water based on a rationing schedule to ensure availability across all areas. Often during the lean season, water volumes are insufficient for effectively irrigating the vegetable plots in good time, which leads to moisture stress, inconsistent irrigation and poor crop performance. Reports of cutting off or diverting water supply among farmers are high despite the local council’s efforts to schedule water distribution and access across all areas. âWhen water availability is low, itâs not uncommon to find internal conflicts in the village as households battle to access water resources,â explains Grace Mhande, an avid potato producer in Ward 22.
Climate-proofing gardens
Traditionally, flood, drag hose, bucket and sprinkler systems have been used as the main irrigation methods. However, according to Raymond Nazare, an engineer from the University of Zimbabwe, these traditional irrigation designs âwaste water, are laborious, require the services of young able-bodied workers and use up a lot of time on the part of the farmers.â
Prudence Nyanguru, who grows tomatoes, potatoes, cabbages and sugar beans in Ward 30, says the limited number of sprinklers available for her garden meant she previously had to irrigate every other day, alternating the sprinkler and hose pipe while spending more than five hours to complete an average 0.05-hectare plot.
âWhereas before I would spend six hours shifting the sprinklers or moving the hose, I now just switch on the drip and return in about two or three hours to turn off the lines,â says Nyanguru.
The drip technology is also helping farmers in Nyanga adapt to climate change by providing efficient water use, accurate control over water application, minimizing water wastage and making every drop count.
âWith the sprinkler and flood systems, we noticed how easily the much-needed fertile top soil washed away along with any fertilizer applied,â laments Vaida Matenhei, another farmer from Ward 30. Matenhei now enjoys the simple operation and steady precision irrigation from her drip-kit installation as she monitors her second crop of sugar beans.
âVery little is done to promote small-scale irrigation,â explains Baudron. âHowever, an installation with drip kits and a small petrol pump costs just over $1 per square meter.â
Prudence Nyanguru tends to her thriving tomato field in Nyanga, Zimbabwe. (Photo: Shiela Chikulo/CIMMYT)
A disability-inclusive technology
The design of the drip-kit intervention also focused on addressing the needs of people with disabilities. At least five beneficiaries have experienced the limitations to full participation in farming activities as a result of physical barriers, access challenges and strenuous irrigation methods in the past.
For 37-year-old Simon Makanza from Ward 22, for example, his physical handicap made accessing and carrying water for his home garden extremely difficult. The installation of the drip-kit at Makanzaâs homestead garden has created a barrier-free environment where he no longer grapples with uneven pathways to fetch water, or wells and pumps that are heavy to operate.
âI used to walk to that well about 500 meters away to fetch water using a bucket,â he explains. âThis was painstaking given my condition and by the time I finished, I would be exhausted and unable to do any other work.â
The fixed drip installation in his plot has transformed how he works, and it is now easier for Makanza to operate the pump and switches for the drip lines with minimal effort.
Families living with people with disabilities are also realizing the advantages of time-saving and ease of operation of the drip systems. âI donât spend all day in the field like I used to,â says George Nyamakanga, whose brother Barnabas who has a psychosocial disability. âNow, I have enough time to assist and care for my brother while producing enough to feed our eight-member household.â
By extension, the ease of operation and efficiency of the drip-kits also enables elderly farmers and the sick to engage in garden activities, with direct benefits for the nutrition and incomes of these vulnerable groups.
Irene Chikata, 69, operates her lightweight drip-kit on her plot in Nyanga, Zimbabwe. (Photo: Shiela Chikulo/CIMMYT)
Scaling for sustained productivity
Since the introduction of the drip-kits in Nyanga, more farmers like Duri are migrating from flood and sprinkler irrigation and investing in drip irrigation technology. From the 30 farmers who had drip-kits installed, three have now scaled up after witnessing the cost-effective, labor-saving and water conservation advantages of drip irrigation.
Dorcas Matangi, an assistant research associate at CIMMYT, explains that use of drip irrigation ensures precise irrigation, reduces disease incidence, and maximal utilization of pesticides compared to sprinklers thereby increasing profitability of the farmer. âAlthough we are still to evaluate quantitatively, profit margin indicators on the ground are already promising,â she says.
Thomas Chikwiramadara and Christopher Chinhimbiti are producing cabbages on their shared plot, pumping water out of a nearby river. One of the advantages for them is the labor-saving component, particularly with weed management. Because water is applied efficiently near the crop, less water is available for the weeds in-between crop plants and plots with drip irrigation are thus far less infested with weeds than plots irrigated with buckets or with flood irrigation.
âThis drip system works well especially with weed management,â explains Chinhimbiti. âNow we donât have to employ any casual labor to help on our plot because the weeds can be managed easily.â
Thomas Chikwiramadara and Christopher Chinhimbiti walk through their shared cabbage crop in Nyanga, Zimbabwe. (Photo: Shiela Chikulo/CIMMYT)
Wheat fields in the Arsi highlands, Ethiopia, 2015. (Photo: CIMMYT/ Peter Lowe)
A state-of-the-art study of plant DNA provides strong evidence that farmers in Ethiopia have widely adopted new, improved rust-resistant bread wheat varieties since 2014.
The results â published in Nature Scientific Reports â show that nearly half (47%) of the 4,000 plots sampled were growing varieties 10 years old or younger, and the majority (61%) of these were released after 2005.
Four of the top varieties sown were recently-released rust-resistant varieties developed through the breeding programs of the Ethiopian Institute for Agricultural Research (EIAR) and the International Maize and Wheat Improvement Center (CIMMYT).
Adoption studies provide a fundamental measure of the success and effectiveness of agricultural research and investment. However, obtaining accurate information on the diffusion of crop varieties remains a challenging endeavor.
DNA fingerprinting enables researchers to identify the variety present in samples or plots, based on a comprehensive reference library of the genotypes of known varieties. In Ethiopia, over 94% of plots could be matched with known varieties. This provides data that is vastly more accurate than traditional farmer-recall surveys.
This is the first nationally representative, large-scale wheat DNA fingerprinting study undertaken in Ethiopia. CIMMYT scientists led the study in partnership with EIAR, the Ethiopian Central Statistical Agency (CSA) and Diversity Array Technologies (DArT).
âWhen we compared DNA fingerprinting results with the results from a survey of farmersâ memory of the same plots, we saw that only 28% of farmers correctly named wheat varieties grown,â explained Dave Hodson, a principal scientist at CIMMYT and lead author of the study.
The resulting data helps national breeding programs adjust their seed production to meet demand, and national extension agents focus on areas that need better access to seed. It also helps scientists, policymakers, donors and organizations such as CIMMYT track their impact and prioritize funding, support, and the direction of future research.
âThese results validate years of international investment and national policies that have worked to promote, distribute and fast-track the release of wheat varieties with the traits that farmers have asked for â particularly resistance to crop-destroying wheat rust disease,â said Hodson.
Ethiopia is the largest wheat producer in sub-Saharan Africa. The Ethiopian government recently announced its goal to become self-sufficient in wheat, and increasing domestic wheat production is a national priority.
Widespread adoption of these improved varieties, demonstrated by DNA fingerprinting, has clearly had a positive impact on both economic returns and national wheat production gains. Initial estimates show that farmers gained an additional 225,500 tons of production â valued at $50 million â by using varieties released after 2005.
The study results validate investments in wheat improvement made by international donor agencies, notably the Bill & Melinda Gates Foundation, the Ethiopian government, the UK Foreign, Commonwealth and Development Office (FCDO, formerly DFID), the US Agency for International Development (USAID) and the World Bank. Their success in speeding up variety release and seed multiplication in Ethiopia is considered a model for other countries.
âThis is good news for Ethiopian farmers, who are seeing better incomes from higher yielding, disease-resistant wheat, and for the Ethiopian government, which has put a high national priority on increasing domestic wheat production and reducing dependence on imports,â said EIAR Deputy Director General Chilot Yirga.
The study also confirmed CGIARâs substantial contribution to national breeding efforts, with 90% of the area sampled containing varieties released by Ethiopian wheat breeding programs and derived from CIMMYT and the International Center for Agricultural Research in the Dry Areas (ICARDA) germplasm. Varieties developed using germplasm received from CIMMYT covered 87% of the wheat area surveyed.
âThis research demonstrates that DNA fingerprinting can be applied at scale and is likely to transform future crop varietal adoption studies,â said Kindie Tesfaye, a senior scientist at CIMMYT and co-author of the study. âAdditional DNA fingerprinting studies are now also well advanced for maize in Ethiopia.â
This research is supported by the Bill and Melinda Gates Foundation and CGIAR Fund Donors. Financial support was provided through the âMainstreaming the use and application of DNA Fingerprinting in Ethiopia for tracking crop varietiesâ project funded by the Bill & Melinda Gates Foundation (Grant number OPP1118996).
Dave Hodson, International Maize and Wheat Improvement Center (CIMMYT), d.hodson@cgiar.org
ABOUT CIMMYT:
The International Maize and What Improvement Center (CIMMYT) is the global leader in publicly-funded maize and wheat research and related farming systems. Headquartered near Mexico City, CIMMYT works with hundreds of partners throughout the developing world to sustainably increase the productivity of maize and wheat cropping systems, thus improving global food security and reducing poverty. CIMMYT is a member of the CGIAR System and leads the CGIAR programs on Maize and Wheat and the Excellence in Breeding Platform. The Center receives support from national governments, foundations, development banks and other public and private agencies. For more information visit staging.cimmyt.org
