CIMMYT’s 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.
Two new students have graduated from the International Maize and Wheat Improvement Center’s (CIMMYT’s) Soil-Borne Pathogens program. The two new graduates, Khawla Mehalaine and Salah-Eddine Laasli, were supervised by CIMMYT senior scientist Abdelfattah Dababat.
He leads the Soil-Borne Pathogens program, which focuses on identifying the main soil-borne pathogens associated with cereals and developing an integrated pest management approach to combat them. The research team is particularly interested in finding novel sources of resistance against these pathogens.
Over the last two decades, CIMMYT scientists leading the Soil-Borne Pathogens program have trained tens of students which constitute the next generation of top researchers on this topic. Through this program, CIMMYT has also organized workshops and courses in North Africa, including a symposium on cereal nematodes held in Agadir, Morocco, in 2017.
Since soil-borne pathogens are exacerbated by water stress conditions, researchers have identified the Central and West Asia and North Africa regions as priority areas, due to their vulnerability to drought.
On March 1, 2021, Syngenta, in collaboration with CIMMYT and other partners, led the first One Earth Soil and Root Health Forum, an event which examined the importance of root and soil health to food security, climate resilience and livelihoods. The event also created a community for action on root and soil health.
Khawla Mehalaine celebrates graduating from her PhD. (Photo: handout)
Nematodes in Algeria
Mehalaine holds an engineering degree in agronomy and a master’s degree in plant protection from the Higher National School of Agronomy (ENSA) in Algeria. She successfully defended her PhD dissertation “Studies of cereal cyst nematodes of the genus Heterodera in the regions of northern Algeria” in June 2021, graduating from ENSA with honors.
She studied the behavior of four durum wheat varieties against cereal cyst nematodes through field surveys, molecular identification at species levels, and by evaluating the yield components of these wheat varieties.
She was promoted by ENSA professor Hammach M. and supervised by Dababat from CIMMYT, and professors Mustafa Imren and Göksel Özer from Abant Izzet Baysal University in Turkey.
“Completing my doctorate was a truly enriching experience and a challenging but rewarding journey,” Mehalaine said. “It was a collective effort and I am extremely grateful to Dr Abdelfattah Dababat for sharing his scientific skills, for his patience and support, and for all the opportunities I was given to further my research. Thanks to him, I got to know the world of nematodes. Special thanks to CIMMYT for funding the molecular study part.”
Salah-Eddine Laasli on his graduation day. (Photo: handout)
Root-lesion nematode and crown rot fungi
Laasli graduated with an International Master of Agronomic and Environmental Nematology (IMANEMA) from Ghent University, in collaboration with CIMMYT, the National Institute of Agricultural Research in Morocco and the Faculty of Agriculture at Abant Izzet Baysal University in Turkey.
His master thesis, entitled “Interaction of Root-Lesion Nematode (Pratylenchus thornei) and Crown Rot fungi (Fusarium culmorum) associated with wheat resistance under simulated field conditions,” was promoted by Wim Bert, a professor at the University of Ghent, and Dababat. The project was also supervised by Imren and Özer.
Laasli evaluated the host status of 150 spring wheat lines to both P. thornei and F. culmorum, and estimated the damage caused by the disease complex involving both pathogens at different infection scenarios. He found several lines that possessed multiple resistance to both diseases tested — which could be powerful sources of resistance for breeding program worldwide.
Cover photo: Irrigated wheat field. (Photo: S. Sukumaran/CIMMYT)
For over a decade, the CGIAR Research Programs on Maize (MAIZE) and Wheat (WHEAT) have been at the forefront of research-for-development benefiting maize and wheat farmers in the Global South, especially those most vulnerable to the shocks of a changing climate.
From 2012 to 2021, MAIZE has focused on doubling maize productivity and increasing incomes and livelihood opportunities from sustainable maize-based farming systems. Through MAIZE, scientists released over 650 elite, high-yielding maize varieties stacked with climate adaptive, nutrition enhancing, and pest and disease resistant traits.
The WHEAT program has worked to improve sustainable production and incomes for wheat farmers, especially smallholders, through collaboration, cutting-edge science and field-level research. Jointly with partners, WHEAT scientists released 880 high-yielding, disease- and pest-resistant, climate-resilient and nutritious varieties in 59 countries over the life of the program.
To document and share this legacy, the MAIZE and WHEAT websites have been redesigned to highlight the accomplishments of the programs and to capture their impact across the five main CGIAR Impact Areas: nutrition, poverty, gender, climate and the environment.
We invite you to visit these visually rich, sites to view the global impact of MAIZE and WHEAT, and how this essential work will continue in the future.
CIMMYT’s relationship with Mexico is one of a kind: in addition to being the birthplace of the wheat innovations that led to the Green Revolution and the founding of CGIAR, Mexico is also where maize originated thousands of years ago, becoming an emblem of the country’s economy and identity.
Honoring this longstanding connection and celebrating Mexico’s key contribution to global wheat and maize production, Mexico City will host a photo exhibition from December 1, 2021, to January 15, 2022, in the Open Galleries Lateral, located on Paseo de la Reforma, one of city’s most iconic promenades.
Titled “Maize and Wheat Research in Focus: Celebrating a Decade of Research for Sustainable Agricultural Development Under the CGIAR Research Programs on Maize and Wheat,” the exhibition illustrates the impact of MAIZE and WHEAT over the last ten years. The selection of photographs documents the challenges faced by maize and wheat smallholders in different regions, and showcases innovative interventions made by national and regional stakeholders worldwide.
From pathbreaking breeding research on climate-smart varieties to helping farming families raise their incomes, the photos — taken by CGIAR photographers before the COVID-19 pandemic — capture both the breadth of the challenges facing our global agri-food systems and the spirit of innovation and cooperation to meet them head on.
Don’t miss the chance to visit the exhibition if you are in Mexico City!
The photo exhibition “Maize and Wheat Research in Focus: Celebrating a Decade of Research for Sustainable Agricultural Development Under the CGIAR Research Programs on Maize and Wheat” will be on display in Mexico City until January 15, 2022. (Photo: Alfonso Cortés/CIMMYT)
From October 31 to November 12, all eyes and cameras turned to Glasgow, where the 26th Conference of the Parties of the United Nations Convention against Climate Change (COP26) took place in a hybrid format. With temperatures rising around the world and extreme weather events becoming increasingly frequent, country leaders and climate experts came together in Scotland to discuss the next steps in the fight against climate change.
Together with other CGIAR Centers, the International Maize and Wheat Improvement Center (CIMMYT) took part in this crucial conversation, drawing attention to the impact of climate change on smallholder agriculture and echoing CGIAR’s call for increased funding for agricultural research and innovation.
Here’s a summary of the events in which CIMMYT researchers and scientists participated.
“Because farmers feed us all: using climate for a resilient food system”
November 6, 2021
Sponsored by the UK Met Office, this event focused on the effects of climate change on the resilience of food systems and how this impact is factored into decision-making. Speakers discussed the real-life application of climate risk information, highlighting the importance of global collaboration and multi-stakeholder partnerships in developing context-specific climate services.
Focusing on CIMMYT’s work in Ethiopia, research associate Yoseph Alemayehu and senior scientist Dave Hodson provided some insights on the wheat rust early warning system. This revolutionary mechanism developed by CIMMYT and partners helps farmers in developing countries predict this disease up to a week in advance.
“COP26 highlighted the vulnerability of different agriculture sectors to climate change, including increased threats from pests and pathogens. From the work in Ethiopia on wheat rust early warning systems, strong partnerships and the application of advanced climate science can play an important role in mitigating some of the effects.” – Dave Hodson
“Developing Climate Resilient Food Systems Pathways: Approaches From Sub-Saharan Africa”
November 8, 2021
Putting an emphasis on participatory governance and community-centered technologies, this event showcased innovative approaches to strengthen the resilience of African food systems, calling for increased investment in the scale-up of climate-smart agriculture practices to meet growing demand.
Joining from Zimbabwe, Christian Thierfelder, Principal Cropping Systems Agronomist gave an overview of CIMMYT’s work in southern Africa, explaining how the introduction of conservation agriculture back in 2004 helped farmers overcome low crop yields and boost their incomes.
“If one thing was made clear at COP26, it is the urgent need for a change in the way we do agriculture. The status quo is not an option and we, as CIMMYT and part of the One CGIAR, will continue to generate the scientific evidence and climate-smart solutions to accelerate this change and address the climate challenges ahead of us, with farmers at the core of our work.” – Christian Thierfelder
“4 per 1000” Initiative Day
November 10, 2021
The “4 per 1000” Initiative, a multi-stakeholder partnership of more than 650 members on food security and climate change, held a day-long hybrid event to explore how healthy soils can help agriculture and forestry adapt to and mitigate climate change.
At the Partner Forum, Bram Govaerts, Director General of CIMMYT, stressed the urgent need to fund soil science to achieve its carbon sequestration potential, reiterating CIMMYT’s commitment to supporting this science with results-oriented actions that scale out sustainable practices and technologies.
“For me, the main take-away of the summit is the growing consensus and understanding that we need to transform agriculture and food systems to achieve global emissions targets on time.” – Bram Govaerts
Cover photo: The action zone and the globe at the Hydro, one of the venues in Glasgow where COP26 took place. (Photo: Karwai Tang/UK Government)
The findings, published in Nature Food, extend many potential benefits to national breeding programs, including improved wheat varieties better equipped to thrive in changing environmental conditions. This research was led by Sukhwinder Singh of the International Maize and Wheat Improvement Center (CIMMYT) as part of the Seeds of Discovery project.
Since the advent of modern crop improvement practices, there has been a bottleneck of genetic diversity, because many national wheat breeding programs use the same varieties in their crossing program as their “elite” source. This practice decreases genetic diversity, putting more areas of wheat at risk to pathogens and environmental stressors, now being exacerbated by a changing climate. As the global population grows, shocks to the world’s wheat supply result in more widespread dire consequences.
The research team hypothesized that many wheat accessions in genebanks — groups of related plant material from a single species collected at one time from a specific location — feature useful traits for national breeding programs to employ in their efforts to diversify their breeding programs.
“Genebanks hold many diverse accessions of wheat landraces and wild species with beneficial traits, but until recently the entire scope of diversity has never been explored and thousands of accessions have been sitting on the shelves. Our research targets beneficial traits in these varieties through genome mapping and then we can deliver them to breeding programs around the world,” Singh said.
Currently adopted approaches to introduce external beneficial genes into breeding programs’ elite cultivars take a substantial amount of time and money. “Breeding wheat from a national perspective is a race against pathogens and other abiotic threats,” said Deepmala Sehgal, co-author and wheat geneticist in the Global Wheat program at CIMMYT. “Any decrease in the time to test and release a variety has a huge positive impact on breeding programs.”
Deepmala Sehgal shows LTP lines currently being used in CIMMYT trait pipelines at the experimental station in Toluca, Mexico, for introgression of novel exotic-specific alleles into newly developed lines. (Photo: CIMMYT)
Taking into genetic biodiversity
The findings build from research undertaken through the Seeds of Discovery project, which genetically characterized nearly 80,000 samples of wheat from the seed banks of CIMMYT and the International Center for Agricultural Research in the Dry Areas (ICARDA).
First, the team undertook a large meta-survey of genetic resources from wild wheat varieties held in genebanks to create a catalog of improved traits.
“Our genetic mapping,” Singh said, “identifies beneficial traits so breeding programs don’t have to go looking through the proverbial needle in the haystack. Because of the collaborative effort of the research team, we could examine a far greater number of genomes than a single breeding program could.”
Next, the team developed a strategic three-way crossing method among 366 genebank accessions and the best historical elite varieties to reduce the time between the original introduction and deployment of an improved variety.
Sukhwinder Singh (second from left) selects best performing pre-breeding lines in India. (Photo: CIMMYT)
Worldwide impact
National breeding programs can use the diverse array of germplasm for making new crosses or can evaluate the germplasm in yield trials in their own environments.
The diverse new germplasm is being tested in major wheat producing areas, including India, Kenya, Mexico and Pakistan. In Mexico, many of the lines showed increased resistance to abiotic stresses; many lines tested in Pakistan exhibited increased disease resistance; and in India, many tested lines are now part of the national cultivar release system. Overall, national breeding programs have adopted 95 lines for their targeted breeding programs and seven lines are currently undergoing varietal trials.
“This is the first effort of its kind where large-scale pre-breeding efforts have not only enhanced the understanding of exotic genome footprints in bread wheat but also provided practical solutions to breeders,” Sehgal said. “This work has also delivered pre-breeding lines to trait pipelines within national breeding programs.”
Currently, many of these lines are being used in trait pipelines at CIMMYT to introduce these novel genomic regions into advanced elite lines. Researchers are collaborating with physiologists in CIMMYT’s global wheat program to dissect any underlying physiological mechanisms associated with the research team’s findings.
“Our investigation is a major leap forward in bringing genebank variation to the national breeding programs,” Singh explained. “Most significantly, this study sheds light on the importance of international collaborations to bring out successful products and new methods and knowledge to identify useful contributions of exotic in elite lines.”
Cover photo: A researcher holds a plant of Aegilops neglecta, a wild wheat relative. Approximately every 20 years, CIMMYT regenerates wheat wild relatives in greenhouses, to have enough healthy and viable seed for distribution when necessary. (Photo: Rocío Quiroz/CIMMYT)
Introducing mechanization services in any smallholder farming community has proven to yield multiple benefits largely aimed at increasing farming efficiency but importantly creating a solid economic base to boost farmer incomes. Anchored on the two-wheel tractor along with implements for land preparation, planting, harvesting, shelling, transporting, appropriate-scale mechanization has in the last seven years gained currency across African farming households.
Interventions such as the mechanization pilot implemented by the International Maize and Wheat Improvement Center (CIMMYT) provide a channel through which smallholder farmers with access to some financial resources can invest to become a viable enterprise. The aim of this intervention is not to make every farmer own its own machinery, which would be costly and inefficient, but to train farmers to become service providers to other community members. This model has been effectively tried before in other places under the Farm Mechanization and Conservation Agriculture for Sustainable Intensification (FACASI) project.
A recent visit to two service providers in southern Zimbabwe, demonstrates the high returns on investment achieved through enrolling in mechanization service provision.
Two service providers, one vision: Profit
Julius Shava (53) and Prince Chimema (22), shared their experience in offering diverse transporting and land preparation services using the two-wheel tractor, trailer, direct seeder, and sheller procured through the initiative. Narrating how he learnt about the mechanization pilot and his subsequent enrolment, Shava explains how potential service providers had to make a financial commitment to the business before accessing the equipment.
“Through this mechanization business model, we would receive a two-wheel tractor, trailer, sheller, and seeder worth USD5,000, at a subsidized price of $USD2,500. The main condition for accessing this package was to pay a commitment fee of USD500 – there was no way I could let that opportunity slip away,” explains Shava.
“My wife and I decided to sell two cows to raise the funds and made the payment. Some community members were initially skeptical of the approach when it seemed that the consignment was delayed yet when the two-wheel tractor arrived, they were among the first to inquire about the services I was offering,” Shava adds.
“I made sure they all understood what I could provide for them using the 2WT and trailer such as land preparation and transportation – of manure, gravel stones and pit sand among other things.”
The multipurpose trailer with a loading capacity of up to one and a half tonnes can be attached to the two-wheel tractor for the provision of transport services. (S.Chikulo/CIMMYT)
Shava and Chimema are among fifteen service providers leading in the mechanization pilot initiative launched in July 2020 in Masvingo district. The initiative is supported by the Swiss Agency for Development and Cooperation (SDC) and managed by the World Food Program (WFP). The private sector machinery company Kurima Machinery facilitates provision of the two-wheel tractor, planter, trailer and sheller while the Zimbabwe Agriculture Trust (ZADT) manages the lease-to-own business model anchoring the mechanization pilot to the financial sector.
Counting the cost and returns
“How much turnover does a service provider realise on average?” is a question frequently asked by other farmers keen to take up the enterprise.
Shava explains the factors he considers, “When someone is hiring my services, I charge according to the distance and load to be transported.” For example, for a 200m delivery radius, I can charge USD5. However, for land preparation and ploughing, I charge USD100 per hectare.” He quickly adds that he also factors in his labor, fuel requirements and time into the final price of his service – a principle he learnt during a specialized technical and business training provided by Gwebi College of Agriculture for the mechanization pilot.
In addition, using the two-wheel tractor is efficient as a hectare is completed in about one hour where an animal drawn plough takes up to six hours or more, depending on the soil type. The reduced drudgery allows farmers to rest their livestock and adopt more efficient and sustainable land preparation technologies. Shava notes that these advantages are immediately apparent to farmers who seek the service.
Customers often pay in cash which is convenient for him as he saves the money or uses some of it to meet expenses related to the service provision. “So far I have reached up to 7 customers after two months from the Nemamwa area in Ward 12 of Masvingo and they were seeking different services. “For land preparation they were paying USD100 per hectare. In Ward 8, I managed to get about three customers.
“When it comes to pricing, I leave room for negotiation because it is inevitable that customers will always ask for a discount, but I ensure that I do not incur losses.” Since venturing into mechanization service provision, Shava has realized a gross income of USD$600 before deducting expenses such as fuel and regular maintenance. However, the two-wheel tractor is fuel efficient – utilizing at least seven liters of diesel per hectare. Diesel fuel is purchased in Masvingo town or from informal markets at the business center at a cost of USD1 per liter.
Young service providers making their mark
Service providers such as Prince Chimema, who are young, energetic and business minded are also among those quickly realizing the high returns on the small mechanization investment. Coming from a family of seven, Chimema – recently married and with a two-year old child – has found a secure income stream in service provision of different mechanization services.
“I am grateful for the financial support from my parents that enabled me to enroll into the mechanization pilot program,” says Chimeme. Like Shava, Chimema’s parents sold two cows to raise the USD500 commitment fee. Soon, Chimema was approaching his relatives and neighbors in the community demonstrating the transporting, planting and land preparation services that he could provide. “Some of my customers would have seen me delivering manure or quarry stones to another household before requesting for my services; that is how my customer base has increased steadily.”
When pricing, Chimema considers the distance, fuel and time it will take to deliver the load. “In this area, requests are for transporting manure, quarry stones, pit sand and river sand. The price ranges from USD4 – USD8 per load. While most villagers pay in cash, a few may request to pay in kind using chickens,”
Chimema’s marketing strategy has been to push volumes by advertising his transporting services to other farmers outside of Ward 18. To date, he has focused on clients requiring transportation services. In Wards 18 and 19, Chimema has served a total of 60 customers, generating USD400 within the first two months of commencing the business.
Challenges and early lessons
Venturing into small mechanized service provision has not been without its challenges as attested by Chimema and Shava, “A lesson I learnt from the onset is never to overload the trailer beyond the recommended capacity,” explains Chimema. “During the mechanization training, we were advised that the trailer’s maximum carrying capacity is between 750-1000kg but at times I could overlook this leading to faults developing on my tractor,” says Prince.
Fuel access also presents challenges at times. “We have to get fuel from Masvingo because the quality of fuel here in the ward may be compromised while the price is slightly inflated because of the middlemen selling the fuel.
The delay in delivery of tractor-drawn direct seeders reduced the potential number of customers for both Chimema and Shava for planting services, as most farmers had proceeded to plant given the early onset of the rainy season. However, both service providers are hopeful that in the next season, with all the equipment in place, they can provide the full range of services to fellow smallholders.
Continuous improvement of the technology by including a toolbar is currently underway, which eases the level of effort required to operate the two-wheel tractor, making it more flexible for the service providers.
Twenty-two-year-old Prince Chimema of Ward 18 Masvingo district demonstrating the two-row direct seeder attached to the two-wheel tractor. (S.Chikulo/CIMMYT)
A vision for expansion and rural transformation
Chimema and Shava are optimistic about the future growth and performance of their business. Both aspire to expand their service provision over the coming five years by purchasing a second two-wheel tractor and creating employment for other villagers. “The income for the second two-wheel tractor should be generated from the current business” explains Shava.
In addition to the land preparation and transporting services, the maize sheller is set to increase their income. With a shelling capacity of 3-4 tons per day, the maize sheller significantly reduces the amount of time and effort required to shell a ton of maize manually (12.5 days).
“The priority now is to make sure that the loan repayment happens smoothly because I am generating enough income to pay back up for my package,” explains Shava. Once the payment is done, Shava would like to set up a borehole and drip irrigation system for their family plot and complete construction of his house in Masvingo town.
Chimema, on the other hand, is keen to start a poultry project. He is currently assisting his parents to pay school fees for his younger sibling but believes the poultry project will increase his income stream. “As I broadcast and market my services by word of mouth and through mobile platform messages; there is room for me to expand beyond Ward 18 and 19,” says Chimema. “I hope to employ at least two more people in the coming two or three years, to help me deliver the services to other farmers,” he adds.
“With the business experience gained from the current season, small mechanization service providers such as Chimema and Shava can increase the portfolio of services to customers”, says Christian Thierfelder, Principal Scientist at CIMMYT, leading the effort. “For example, at planting stage, service providers could provide a complete package for farmers including seed and fertilizer as well as a supply of appropriate herbicides for weed control as part of the land preparation and direct seeding service. Such an offering increases the value of the service and affords farmers the opportunity to witness the full benefits of small mechanized agriculture”, Thierfelder says.
“We have to provide farmers with options to abandon the hoe. The drudgery of farming has made this profession so unattractive that a rural exodus is looming. Providing business, employment and entrepreneurship will bring back hope and will lead to a true rural and agriculture transformation in Zimbabwe.” The high return on investment of the mechanized package makes it a viable year-round business option for farmers and entrepreneurs in rural Masvingo. The pilot is providing a proof of concept that this model works, even under low-potential environments.
Cover photo: Julius Shava and his wife standing at their lease-to-own two-wheel tractor which is part of the starter package for small-mechanization service providers in Masvingo District. (S.Chikulo/CIMMYT)
The ever-changing environmental conditions and the urgency to improve food production and productivity for growing populations have ushered in the necessity for smallholder farmers to have widespread access to improved seed in the last mile. However, adequate access to the preferred, good-quality seeds that are climate-resilient and nutrition-dense is essential to farmers’ food and livelihood security. While seed security is an important first step to improved food production in developing countries and well examined in disaster situations, it remains understudied concerning long-term seed sector development, says a new study.
The Food and Agriculture Organization of the United Nations (FAO) describes seed security as “ready access by rural households, particularly farmers and farming communities, to adequate quantities of quality seeds adapted to their agro-ecological conditions and socioeconomic needs, at planting time, under normal and abnormal weather conditions.” In 2016, FAO specified two elements: varietal suitability (traits that respond to farmers’ preferences) and resilience (stability of seed system in the context of shocks) in addition to seed quantity, quality, and access identified in the earlier conceptualization of seed security.
Widespread seed insecurity
The study analyzed farmers’ seed use and preferences (demand-side) and the role of actors and institutions (supply-side) to understand farmers’ seed security. The latter was examined within the context of the recently adopted Pluralistic Seed System Development Strategy (PSSDS) of Ethiopia to understand how they affect the availability, quantity, quality, accessibility, and suitability of seeds from different sources. They focused on seed systems in two districts in Central Ethiopia — subsistence teff-growing and commercial wheat-growing districts. Since it started its operation in Ethiopia, CGIAR’s International Maize and Wheat Improvement Center (CIMMYT) has been one of the major actors in the commercial wheat district covered in this study. CIMMYT has contributed to the capacity building of Kulumsa Agricultural Research Center, a center of excellence for wheat research and development in East Africa that has released over 70 improved bread wheat and durum wheat varieties.
Despite great strides made in improving the seed sector in Ethiopia, the study found that the farmers in the two districts predominantly rely on the informal seed systems, concluding widespread seed insecurity in both regions. The study reported discrepancies between seeds farmers say they prefer and those they actually use. This discrepancy is due to the limited availability of improved varieties and specially certified seeds of these varieties, challenges with seed quality from some sources, and inequitable access to preferred seed and information according to sex, age, and wealth.
Explaining the finding concerning the widespread seed insecurity observed in the study districts, Teshome Hunduma, the lead author of the study, noted: “We were able to reveal some of the social, political, and institutional constraints and opportunities that underlie chronic seed insecurity among smallholder farmers in the two districts in Ethiopia. The country has a good seed sector development policy, for instance, the PSSDS, but these constraints limited its implementation.”
Women empowerment and access to certified seeds
In the study districts where CIMMYT operates, wealthy farmers aligned with the Ethiopian government received a privileged position as model farmers enjoyed increased seed access. Likewise, female-headed households targeted by the extension services had improved access to certified seeds. The presence of development actors, including CIMMYT alongside its partners such as Kulumsa Agricultural Research Center, actively contributed to the “unusual empowerment of women in the predominantly wheat-growing districts,” according to Hunduma. Hunduma referred to the following excerpt from the study to confirm his upbeat impression during his field research.
The study reports: “the women focus group participants highlighted unexpectedly positive empowerment of female heads of household and their related access to improved agricultural technologies [improved wheat]:
Unfortunately, all of us are on our own, i.e., we are widows and divorcees. ( . . . ) We do everything that most men do in farming. In the past, women, including widows and divorcees, were not considered equal to men. Now, we have more freedom and voice. We equally participate in meetings, trainings, and access inputs as men. We express our ideas in public gatherings… We learnt new techniques and gained skills in agriculture. We have better savings; some of us have saved between 70,000 to 100,000 ETB. We have full control over our incomes and resources. We hire labor and rent land to expand our production.
According to Hunduma, “development actors, including CGIAR and its partners, targeted female heads of households for varietal adaptation trial, seed multiplication, extension and credit services, which led to a significant push for a gender-sensitive approach to agricultural development.”
Over the past two decades, Ethiopia has also achieved high wheat production levels and productivity due to the germplasm that CGIAR introduced in the country in collaboration with its partners. This strategy has firmly put the country on the right path towards wheat self-sufficiency.
As national seed policies and programs in developing countries have primarily focused on the formal seed supply system, farmers’ use of seeds from the formal seed system remains limited. The pluralistic seed system approach could appear to provide a path to seed security in developing countries. Nevertheless, political, organizational, and economic interests within key institutions represent significant obstacles, which need to be addressed. The study concludes that efforts to support farmers’ access to seeds should recognize the complementarity of formal and informal seed systems. Thus the study advocates a pluralistic approach to seed sector development by promoting complementarity of activities between value-chain components of each seed system.
Cover photo: Part of Ethiopia’s Southeastern wheat belt in the Heexosa district, where the pioneering Green Revolution project started in Ethiopia. (Credit: Joshua Masinde/CIMMYT)
In sub-Saharan Africa, smallholder production is characterized by low agricultural productivity which is often cited as a major factor of food insecurity in the region. Recent research from multiple countries in the region suggests that average maize yields of around 1.7 t/ha in 2010 must increase to 6.8 t/ha to meet estimated demand in 2050. To achieve this, per-hectare maize output must grow by about 3.5% per year. Although addressing this challenge seems daunting, estimates suggest that such high yields are technically feasible. However, a shared understanding of the investments and policies required remain elusive.
Under the Taking Maize Agronomy to Scale in Africa (TAMASA) project, scientists from Wageningen University and the International Maize and Wheat Improvement Center (CIMMYT) conducted research on this question, using uniquely detailed farm surveys which provide integrated information about smallholders’ agronomic practices and farm management, soil health and other biophysical characteristics, as well as socioeconomic and other characteristics of farm households.
Decomposing yield gaps
Yield gaps for rainfed crops are defined as the difference between the water-limited yield potential and the actual yield observed in farmers’ fields. One framework to explain yield gaps decomposes the yield gap into efficiency, resource and technology components (Figure 1).
The study disaggregated maize yield gaps in Ethiopia based on field level and farming systems information (Figure 2), which helps to consider the variation in biophysical and socio-economic conditions observed in the country.
Major drivers of yield (and yield gap) outcomes in Ethiopia
The study showed that income from non-farm sources, value of productive assets, education and shorter plot distance from home reduced the efficiency yield gap. The resource yield gap was attributed to sub-optimal input use, specifically of pesticide and nitrogen. The technology yield gap comprised the largest share of the total yield gap, mostly due to limited use of fertilizer and improved varieties and not using the right type and placement of fertilizers and of improved seeds
The investigation further showed that crop residue and weeding frequency affected maize yield only when nitrogen was applied. In a related study, the authors also showed that maize yield reponse to fertilizer application was dependent on other inputs, specifically type of maize variety, manure application and high rainfall implying the need to integrate agricultural technologies in order to improve and sustain the maize productivity. The authors conclude that targeted but integrated policy design and implementation is required to narrow the overall maize yield gap and improve food security.
“Disaggregating and explaining maize yield gaps is essential to identify potential pathways that can narrow the yield gaps,” said Banchayehu Assefa from CIMMYT. “This can help guide policy and investments to be more effective at raising smallholder productivity.”
How to improve fertilizer profitability
Modern maize varieties and mineral fertilizers use have been increasing over time and are believed to be among the factors behind the maize yield improvements observed in Ethiopia. However, maize yield response to fertilizer depends on other inputs and management factors and higher fertilizer application rates may not always lead to higher profitability. Using the details of management decisions and biophysical and marketing context, the authors estimated a maize yield response function and evaluated fertilizer yield responses and economic profitability of fertilizer investments by smallholder maize producers. They found that maize yield response to fertilizer was variable with an average value of 7.3 kg maize/ kg N, and it varied from -9 to 18 kg maize /kg. The degree of response was positively affected by phosphorus input and type of maize variety, and negatively by manure input and high rainfall. The key pathways identified to increase the profitability of nitrogen fertilizer use by smallholder maize producers are: improving yield responses with better management (e.g. use of improved maize varieties, complementary use of phosphorus where appropriate); addressing risk aversion (e.g. via crop insurance) in order to strengthen economic incentives for fertilizer investments; enabling the delay of crop sales to take advantage of higher output prices (possibly through expanded access to storage facilities and/or post-harvest loans to alleviate liquidity needs); and improving farm gate price ratios through improved access to markets.
Implications and further research
Even though maize yields have improved recently, under existing management practices smallholders’ maize yield still falls far below the water-limited potential yield. This urges revising the maize sector in terms of input provision, extension services and output markets. Fertilizer use was highly variable and maize response to fertilizer use depended on other management choices. The study suggests that integrated management practices that work for specific conditions need to be identified, instead of sticking to blanket policy and management recommendations.
This work further points at the importance of additional detailed empirical research on the role of agronomic management practices, to decrease yield gaps. Studying the constraining factors that hinder timely input provision to the farmers might also help to improve input use and hence productivity. In addition, maize prices are too low to advance maize commercialization. Investigating potentials and constraints along the maize value chain might help to improve market participation.
Cover photo: Harvesting maize in East Shoa, Oromia, Ethiopia. (Photo: Banchayehu Assefa/CIMMYT)
At the launch event, workshop participants reviewed the ADAPT-Wheat project’s objectives, outputs, activities, impact pathways, partners and management. (Photo: Enawgaw Sisay/CIMMYT)
The Adaptation, Demonstration, and Piloting of Wheat Technologies for Irrigated Lowlands of Ethiopia (ADAPT-Wheat) project was launched on October 19, 2021, with an inception workshop held in Adama, Ethiopia.
The project, led by the International Maize and Wheat Improvement Center (CIMMYT), aims to transform the irrigated lowlands of Ethiopia’s Awash valley from a cotton monoculture to a cotton-wheat rotation. This transformation will improve local wheat production and make important strides towards helping the country reach its goal of wheat self-sufficiency.
Wheat is the second most important staple crop in Ethiopia and a major pillar for food security. CIMMYT has a longstanding role in helping Ethiopia’s wheat farmers adopt improved, high-yielding, and disease-resistant varieties. This close collaboration became evident in 2018, when DNA fingerprinting analysis showed that 87% of all wheat varieties grown in Ethiopia are CIMMYT-derived.
Thanks to improved farmer access to better varieties, the adoption of a number of agronomic practice recommendations, conducive marketing, and strong supply chains, domestic wheat production and productivity in Ethiopia have nearly doubled over the past 15 years. Nevertheless, due to population growth, higher incomes, and accelerated urbanization, the demand for wheat in Ethiopia is increasing faster than productivity.
Scientists believe wheat grain yields of four tons per hectare are possible in low land areas—which include the Afar and Oromia regions—if wheat production is increased through appropriate mechanization, proven agronomic practices, and high-yielding, early-maturing, heat-tolerant, rust-resistant wheat varieties.
When the three-year ADAPT-Wheat project is fully implemented, it will contribute to Ethiopia’s goal for wheat self-sufficiency by 2023.
Participants in the ADAPT-Wheat workshop record their attendance (Photo: Enawgaw Sisay/CIMMYT)
A space for discussion
At the launch event, participants gathered to share feedback and experiences, identify gaps, and clarify roles and responsibilities among the implementing partners. The meeting also allowed project leaders to confirm participating kebeles (small administrative units), and plan and endorse project activities.
“The forum was a good opportunity to speak about irrigated wheat, get to know each other, and understand the role of each office and its contribution to the success of the project,” said Bekele Abeyo, wheat breeder and CIMMYT’s Country Representative for Ethiopia.
Participants in the workshop included scientists from a number of Ethiopian research institutes, representatives of public and private seed enterprises, heads of bureaus of Agriculture (including those of the Afar and Oromia regions), and local administrations, and representatives of Germany’s Agency for International Cooperation (GIZ).
The discussion included an introduction of CIMMYT and an overview of its global impact, history, and current activities in Ethiopia. An overview of the ADAPT-Wheat project’s objectives, outputs, activities, impact pathways, partners and management was also presented in the forum.
Participants also discussed the key agronomy, breeding, and mechanization activities that will be assessed, validated, scaled up, and scaled out during the project in seven districts, two in the Afar region and five in the Oromia region.
“The inception and planning workshop has a common understanding on how to tackle the bottlenecks ahead of the implementation of the project. The forum was a good opportunity for implementing partners to make a commitment for the new project by realizing the contribution of lowland irrigated wheat in achieving the goal of wheat self-sufficiency by 2023,” Bekele said.
Wheat is the second most important staple crop in Ethiopia and a major pillar for food security. Based on fingerprinting analysis from 2018, about 87% of all wheat varieties grown in Ethiopia are CIMMYT-derived.
Domestic wheat production and productivity has nearly doubled over the past 15 years, due to improved farmer access to better varieties, agronomic practice recommendations and conducive marketing and supply chain policies. Nevertheless, due to population growth, higher incomes and accelerated urbanization, the demand for wheat in Ethiopia is increasing faster than productivity, with the demand for an additional 1.5 million tons of wheat per year satisfied through imports.
In 2018, the Government of Ethiopia set a policy to achieve wheat national self-sufficiency by 2023. Additional production would come primarily from the irrigated lowlands of the Awash valley, in the Afar and Oromia regions, where the current cotton mono-culture would be converted to a cotton-wheat rotation.
Preliminary yield trials conducted by Werer Agricultural Research Center and based on experiences in Sudan where climate conditions are similar, on-farm wheat grain yields of 4 tons per hectare can be achieved. The potential area for irrigated wheat-cotton is at present around 500,000 hectares, which, when fully implemented, has the potential to make Ethiopia self-sufficient for wheat production.
The challenges to develop the current lowland into productive farming systems are significant and include identifying high yielding, early maturing, heat-tolerant, rust-resistant wheat varieties with appropriate end-use quality.
Appropriate mechanization will be required to allow farmers to facilitate rapid preparation of fields for wheat sowing after harvesting cotton, as well as for mechanized harvesting. Tested packages of agronomic and land management practices will be needed to optimize the production systems while mitigating against soil salinization.
In coordination with the national research and extension systems, this project will evaluate and pilot wheat technologies and packages of practices to reach 1,000 smallholders and medium commercial farmers in the Awash valley, and enable them to use these technologies and practices on 10,000 hectares of irrigated land in the first year, following the conclusion of this project.
Objectives
Capacity of research and development practitioners working on irrigated lowland wheat developed.
Improved wheat elite lines evaluated, and pre-release seed multiplication initiated of variety candidates.
Tested package of agronomic practices are ready for scaling.
Demonstration and piloting of appropriate machineries (modern mechanization) for irrigated wheat production.
Dryland Crops, formerly known as the Accelerated Varietal Improvement and Seed Systems in Africa (AVISA) project, aims to improve the livelihoods of small-scale producers and consumers of sorghum, millet, groundnut, cowpea and bean. Project partners focus on improving the breeding and seed systems of these crops in their key geographies in Burkina Faso, Ethiopia, Ghana, Mali, Nigeria, Tanzania and Uganda. Other crops receiving growing attention in the project include finger millet, pigeon pea and chickpea.
Although significant adoption of improved seed of dryland cereals and legume crops in Africa has been reported, its overall use remains low. There is a growing interest in these crops, particularly because of their resilience to climate-change; however, the seed sector is constrained by lack of product information, dearth of knowledge of the size and scale of the business opportunity, and inadequate access to early generation seed.
Dryland Crops will address these constraints by contributing to the establishment of robust systems that:
Enable networks to work synergistically across countries with common challenges and opportunities.
Support national agricultural research systems to access research, professional development and infrastructure-building opportunities.
Increase the quantity and quality of data substantiating varietal superiority and the demand for seed and grain of improved varieties.
Boost the availability of early generation seed and strengthen links between the research system and private- and public-sector actors.
The aspiration is to codevelop, validate by co-implementation, and continuously improve with partners research-to-farm-to-consumer models that achieve positive impacts on farmers’ livelihoods and consumers’ wellbeing.
The Alliance of Bioversity and CIAT and IITA will lead initiatives for common bean and cowpea, respectively. For sorghum, pearl millet and groundnut breeding, CIMMYT will design programs that support crop improvement networks, including CGIAR and national agricultural research systems, and incorporate best approaches, principles, and tools, particularly those availed through the Excellence in Breeding (EiB) platform.
The project is committed to gender equity as a guiding principle, considering the critical role women play in choosing legume and cereal varieties and seed sources. Women seed entrepreneurs and women-led seed companies will garner special attention for capacity development. Partnerships with actors through the value chain, platforms and demonstrations will ensure women have equal access to improved technologies.
The previous phase of the AVISA project was led by the International Crops Research Institute for the Semi-Arid Tropics (ICRISAT).
Written by Bea Ciordia on . Posted in Uncategorized.
Berhanu is a product development breeder for Eastern Africa based in Nairobi, Kenya. He is responsible for identifying competitive hybrids through formation of coded by coded hybrids and testing across multiple optimum and stress environment.
Berhanu organizes and leads the product advancement process for eastern Africa to advance products using the stage gate advancement process.
Prior to joining CIMMYT, Berhanu worked for the Ethiopian Institute of Agricultural Research, where he was the national coordinator for maize research.
CIMMYT distinguished scientist Ravi Singh conducts research on a wheat field while. (Photo: BGRI)
World-renowned plant breeder Ravi Singh, whose elite wheat varieties reduced the risk of a global pandemic and now feed hundreds of millions of people around the world, has been announced as the 2021 Borlaug Global Rust Initiative (BGRI) Lifetime Achievement Award recipient.
Singh, distinguished scientist and head of Global Wheat Improvement at the International Maize and Wheat Improvement Center (CIMMYT), endowed hundreds of modern wheat varieties with durable resistance to fungal pathogens that cause leaf rust, stem rust, stripe rust and other diseases during his career. His scientific efforts protect wheat from new races of some of agriculture’s oldest and most devastating diseases, safeguard the livelihoods of smallholder farmers in the most vulnerable areas in the world, and enhance food security for the billions of people whose daily nutrition depends on wheat consumption.
“Ravi’s innovations as a scientific leader not only made the Cornell University-led Borlaug Global Rust Initiative possible, but his breeding innovations are chiefly responsible for the BGRI’s great success,” said Ronnie Coffman, vice chair of the BGRI and international professor of global development at Cornell’s College of Agriculture and Life Sciences. “Perhaps more than any other individual, Ravi has furthered Norman Borlaug’s and the BGRI’s goal that we maintain the global wheat scientific community and continue the crucial task of working together across international borders for wheat security.”
In the early 2000s, when a highly virulent rust race discovered in East Africa threatened most of the world’s wheat, Singh took a key leadership role in the formation of a global scientific coalition to combat the threat. Along with Borlaug, Coffman and other scientists, he served as a panel member on the pivotal report alerting the international community to the Ug99 outbreak and its potential impacts to global food security. That sounding of the alarm spurred the creation of the BGRI and the collaborative international effort to stop Ug99 before it could take hold on a global scale.
As a scientific objective leader for the BGRI’s Durable Rust Resistance in Wheat and Delivering Genetic Gain in Wheat projects, Singh led efforts to generate and share a series of elite wheat lines featuring durable resistance to all three rusts. The results since 2008 include resistance to the 12 races of the Ug99 lineage and new, high-temperature-tolerant races of stripe rust fungus that had been evolving and spreading worldwide since the beginning of the 21st century.
“Thanks to Ravi Singh’s vision and applied science, the dire global threat of Ug99 and other rusts has been averted, fulfilling Dr. Borlaug’s fervent wishes to sustain wheat productivity growth, and contributing to the economic and environmental benefits from reduced fungicide use,” Coffman said. “Ravi’s innovative research team at CIMMYT offered crucial global resources to stop the spread of Ug99 and the avert the human catastrophe that would have resulted.”
An innovative wheat breeder known for his inexhaustible knowledge and attention to genetic detail, Singh helped establish the practice of “pyramiding” multiple rust-resistance genes into a single variety to confer immunity. This practice of adding complex resistance in a way that makes it difficult for evolving pathogens to overcome new varieties of wheat now forms the backbone of rust resistance breeding at CIMMYT and other national programs.
Ravi Singh (center) with Norman Borlaug (left) and Hans Braun in the wheat fields at CIMMYT’s experimental station in Ciudad Obregón, in Mexico’s Sonora state. (Photo: CIMMYT)
The global champion for durable resistance
Ravi joined CIMMYT in 1983 and was tasked by his supervisor, mentor and friend, the late World Food Prize Winner Sanjaya Rajaram, to develop wheat lines with durable resistance, said Hans Braun, former director of CIMMYT’s Global Wheat Program.
“Ravi did this painstaking work — to combine recessive resistance genes — for two decades as a rust geneticist and, as leader of CIMMYT’s Global Spring Wheat Program, he transferred them at large scale into elite lines that are now grown worldwide,” Braun said. “Thanks to Ravi and his colleagues, there has been no major rust epidemic in the Global South for years, a cornerstone for global wheat security.”
Alison Bentley, Director of CIMMYT’s Global Wheat Program, said that “Building on Ravi’s exceptional work throughout his career, deployment of durable rust resistance in widely adapted wheat germplasm continues to be a foundation of CIMMYT’s wheat breeding strategy.”
Revered for his determination and work ethic throughout his career, Singh has contributed to the development of 649 wheat varieties released in 48 countries, working closely with scientists at national wheat programs in the Global South. Those varieties today are sown on approximately 30 million hectares annually in nearly all wheat growing countries of southern and West Asia, Africa and Latin America. Of these varieties, 224 were developed directly under his leadership and are grown on an estimated 10 million hectares each year.
In his career Singh has authored 328 refereed journal articles and reviews, 32 book chapters and extension publications, and more than 80 symposia presentations. He is regularly ranked in the top 1% of cited researchers. The CIMMYT team that Singh leads identified and designated 22 genes in wheat for resistance or tolerance to stem rust, leaf rust, stripe rust, powdery mildew, barley yellow dwarf virus, spot blotch, and wheat blast, as well as characterizing various other important wheat genome locations contributing to durable resistance in wheat.
Singh’s impact as a plant breeder and steward of genetic resources over the past four decades has been extraordinary, according to Braun: “Ravi Singh can definitely be called the global champion for durable resistance.”
The International Maize and Wheat Improvement Center (CIMMYT) is offering a new set of elite, improved maize hybrids to partners for commercialization in southern Africa and similar agro-ecological zones. National agricultural research systems (NARS) and seed companies are invited to apply for licenses to register and commercialize these new hybrids, in order to bring the benefits of the improved seed to farming communities.
The deadline to submit applications to be considered during the first round of allocations is October, 24 2021. Applications received after that deadline will be considered during the following round of product allocations.
Information about the newly available CIMMYT maize hybrids from the Latin America breeding program, application instructions and other relevant material is available in the CIMMYT Maize Product Catalog and in the links provided below.
Specific questions or issues faced with regard to the application process may be addressed to GMP-CIMMYT@cgiar.org with attention to Nicholas Davis, Program Manager, Global Maize Program, CIMMYT.
Nigeria’s National Biosafety Management Agency (NBMA) has approved the commercialization of TELA Maize seeds—a drought-tolerant and insect-protected variety aimed at enhancing food security in sub-Saharan Africa.
The TELA Maize Project in Nigeria is part of an international consortium coordinated by the African Agricultural Technology Foundation (AATF), the International Maize and Wheat Improvement Centre (CIMMYT), and the National Agricultural Research Systems of seven countries, including Ethiopia, Kenya, Mozambique, Nigeria, South Africa, Tanzania, and Uganda.
With ten years of experience as a crop scientist, Vimbayi Grace Petrova Chimonyo’s research focuses on integrated crop management to address food and nutrition security issues, climate change and rural development. She works primarily with crop simulation modelling as a tool for adapting to climate change and variability and improving food security, especially for smallholder farmers.
She has a good understanding of resource use (water, soil nutrients and solar radiation) within the agricultural sector, Water-Food-Nutrition-Health nexus, the Water-Energy-Food nexus within food system landscapes, and the need for transformative strategies for inclusive food security.
Her main research interests are developing resilient cropping systems with an emphasis on sustainable intensification under climate variability and change.
The International Maize and Wheat Improvement Center (CIMMYT) is offering a new set of elite, improved maize hybrids to partners for commercialization in southern Africa and similar agro-ecological zones. National agricultural research systems (NARS) and seed companies are invited to apply for licenses to register and commercialize these new hybrids, in order to bring the benefits of the improved seed to farming communities.
