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Location: Mexico

Mexico, a lab from which solutions are generated to address global challenges

Directors from Excellence in Agronomy visit modules and platforms at CIMMYT’s South Pacific Hub in Oaxaca, Mexico (Photo: CIMMYT)

“It was a stunning experience for me to understand the operation of a hub and see farmers interact directly with field technicians, applying the principles of Conservation Agriculture. I remember a lady from Oaxaca telling us how productive she has become using la matraca, a simple, manual seeder and fertilizer,” says Mandla Nkomo during his recent visit to the Mixteca oaxaqueña in southern Mexico.

Mandla is the chief growth officer for the Excellence in Agronomy Initiative (EiA) which, “gathers more than 10 CGIAR Research Centers whose goal is to create solutions to problems that farmers face globally. EiA works on a foundation that is driven by demand to understand the challenges farmers are dealing with, and bring forth a development system for innovation that is capable of coping with those challenges and finding solutions that can be tested, validated, and scaled,” he mentions.

His searching for a system that triggers and diffuses innovation for farmers motivated Mandla to visit the hubs in Oaxaca, Mexico. “We are here because we wanted to study all the hubs and the projects based on the methods CIMMYT and its collaborators have developed in Mexico. One of the things we consider at EiA is the successful and sustainable transition from individual use to working within a partner network.”

“What we have seen here is the work of our colleagues from CIMMYT. For the last decade, they have come up with these hubs or innovation centers situated across different agroecological regions in Mexico. What is unique about the hubs is the ecosystem they are creating, which in my opinion, is what brings excellence in agronomy,” says Mandla.

The hubs are a management approach for innovation that was developed in Mexico based on initiatives like MasAgro-Cultivos para MĂ©xico. Due to its big impact, it’s being replicated in Asia, Africa, and in other Latin America countries. In addition, it lies in the heart of CGIAR initiatives.

About this methodology, Mandla says those who participate in it, are trying to understand the challenges that farmers truly face. Then a platform is developed to do proper research that responds to farmers’ needs. Subsequently, they test it in modules which provides proof of the impact these solutions are having as compared to conventional farming. Finally, these solutions are transferred to areas called extension, from which large-scale innovations are implemented.

During his visit to the research platform in Santo Domingo Yanhuitlan and to modules for innovation, extension areas, seed warehouses, post-harvest modules and machinery locations at different towns in Oaxaca, Mandla Nkomo and other visitors from EiA had the opportunity of learning not only how the South Pacific Hub operates but also witnessed how this management approach for innovation is socially and culturally relevant to one of the most diverse regions in the country.

“These days have been truly amazing. They have been very useful in refining the picture of what’s possible to do and scale. Mexico is a megadiverse country with varied agroecology. Our approach can be replicated in many parts of the world. I’m very excited with what we have seen. The country that gave us corn is now providing the world with solutions that will have major impacts on global food security. So, it is now our task (me and the whole EiA team) to find ways to pass this on to other latitudes”.

Responsible sourcing: how farmers, companies work together

CIMMYT challenges the idea that “win-win” partnerships require equals, proving smallholder farmers and large agri-food companies in Mexico can benefit mutually. Through sustainable sourcing, over 1.15 million tons of maize and wheat have been commercialized, benefiting both parties. Initiatives with companies like Bimbo, Heineken, and NestlĂ© enhance environmental sustainability while boosting farmers’ productivity. Led by Director General Bram Govaerts, CIMMYT pioneers sustainable farming, aligning with UN’s Sustainable Development Goals.

Read the full story.

Cargill Mexico and CIMMYT award top food security and sustainability projects in Mexico

Cargill Mexico and CIMMYT presented the 2023 edition of the Cargill-CIMMYT Award for Food Security and Sustainability, which aims to acknowledge and promote projects and actions that contribute to mitigating and resolving the food problems facing the country.

With this award, Cargill and CIMMYT seek to promote actions and projects that contain innovative ideas on technologies, productive inputs, agronomic practices, marketing models, collaboration schemes, among others, that result in a sustainable and scalable increase in agricultural production in Mexico.

From left to right, Fernando Guareschi, president of Cargill Mexico; winners Eduardo Cruz and Heriberto López, youth; Arturo Ortiz, opinion leader; Carlos Barragån, producer; Andrés Mandujano, researcher; and, Bram Govaerts, CIMMYT director general. (Photo: CIMMYT)

“The objective of this initiative is to identify and acknowledge technological innovations, actions, and practices that contribute to strengthening food security and sustainability in the Mexican countryside,” said Fernando Guareschi, president of Cargill Mexico. “The award-winning projects represent an achievement for the producers, researchers, opinion leaders, and young people who participate in each project. It is an indicator for us that we are on the right path to meet our goal of nourishing the world in a safe, responsible, and sustainable way.”

The 2023 edition of the award acknowledges innovations that lead to better integration of basic grain value chains, as well as productive market practices that improve the quality of life of producers in communities or agricultural centers.

“For CIMMYT, the partnership with Cargill has been key to recognizing and promoting the talent and innovation of the actors in the basic grains value chains in Mexico who share our determination to transform agricultural systems to make them more resilient, sustainable, and inclusive and, thus, strengthen food security for all Mexicans,” said Bram Govaerts, CIMMYT director general.

Within the framework of the awards ceremony, the winning projects were recognized in categories: researchers, producers, opinion leaders, and youth in the Mexican agricultural sector.

The winners of the 2023 edition of the Cargill–CIMMYT Award were –

  • AndrĂ©s Mandujano Bueno in the researchers category, with the project “Algorithms to optimize the use of nitrogen fertilizer.”
  • Carlos BarragĂĄn GarcĂ­a in the producers category, with the project “Family agriculture and agribusiness.”
  • Arturo Javier Ortiz GarcĂ­a in the opinion leaders category, with the project “Agricultural Islands.”
  • Eduardo Cruz Rojo in the youth category, with the projects “New production methods for the Mezquital Valley area.”

In this edition, projects were assessed by a jury and a committee of experts from the agricultural and food sector, who had the responsibility of determining the winners. Projects for each category were assessed with specific criteria:

  • Producers of basic grain production systems such as maize, wheat, barley, and sorghum.
  • Scientists and researchers in agronomy, genetics, improvement of maize, wheat, barley, or sorghum, and information and telecommunications technologies applied to the agrifood sector.
  • Leaders of associations of producers, technicians, and communication professionals who work in the agrifood sector in Mexico.
  • Youth who have carried out outstanding activities in the sustainable agricultural sector in Mexico, have implemented a pilot program in their community, or have contributed to agricultural technological innovation.

About Cargill

Cargill is committed to supplying food, ingredients, agricultural solutions, and industrial products to nourish the world safely, responsibly, and sustainably. Located at the center of the supply chain, we collaborate with farmers and customers to source, manufacture, and supply products vital to life.

Our 160,000 team members innovate with purpose, providing customers with the essentials so that businesses grow, communities thrive, and consumers live well. With 159 years of experience as a family business, we look to the future while staying true to our values. We prioritize people. We aim for excellence. We do the right thing, today, and for future generations. For more information, visit Cargill.com and our News Center.

 About CIMMYT

CIMMYT is a cutting edge, non-profit, international organization dedicated to solving tomorrow’s problems today. It is entrusted with fostering improved quantity, quality, and dependability of production systems and basic cereals such as maize, wheat, triticale, sorghum, millets, and associated crops through applied agricultural science, particularly in the Global South, through building strong partnerships. This combination enhances the livelihood trajectories and resilience of millions of resource-poor farmers, while working towards a more productive, inclusive, and resilient agrifood system within planetary boundaries.

CIMMYT is a core CGIAR Research Center, a global research partnership for a food-secure future, dedicated to reducing poverty, enhancing food and nutrition security and improving natural resources.

For more information, visit cimmyt.org.

Read the original article in Spanish.

Flowers, learning, and a gender-based approach

Gender and social inclusion are fundamental themes for the Latin American regional initiative AgriLac Resiliente, which is why numerous regions bordering Guatemala and Honduras have been selected to implement priority actions with a gender approach.

In order to integrate a guideline that clears up why gender and social inclusiveness are relevant matters and incorporate it in all InnovaHubs activities in Guatemala and Honduras, social inclusion and gender experts from AgriLac have implemented a participatory process in the South Pacific and Chiapas Hubs to gather information and document research results to facilitate the Hub model for replication, developed by CIMMYT in Mexico and other countries.

In this way, Alejandrina Garcia in Oaxaca, Alejandro Ramirez in Chiapas, and Angela Meentzan, head of the AgriLac Gender and Social Inclusion Team, conducted individual and group interviews to learn how the different actors involved in the hubs perceived their own participation: farmers, workers, managers, and staff of the hubs, as well as partners who participated in this participatory process.

There are numerous and successful cases of rural women’s participation in the centers of Oaxaca and Chiapas that have been collected in this process. “It is expected that these case studies will become part of an annex to the guideline, just to illustrate why the participation of rural women is essential in their own vision,” said Meentzen, who highlights the case of Juanita, a Tzeltal woman from La Providencia in Ocosingo, Chiapas, Mexico.

“About five years ago, I started working alongside CIMMYT. Before we knew them, we were only planting maize and beans, but then we couldn’t produce any more. The plants stopped growing, and we had a lot of problems with pests, so we used to burn all the stubble. When the engineers came, they invited us to join them. At first, we weren’t that interested, but we let them teach us. They taught us how to grow other crops like sunflowers, peanuts, vegetables, and fruit trees like lemon and soursop,” said Juanita.

“Now we don’t burn all the stubble and we have crops all year round. We also grow other types of plants and use a lot of organic products that they taught us how to prepare. Our production has increased, and we sell more and more at the market. My daughter and I take care of the sale of the crops: beans, corn, vegetables, squash, corn, and flowers; the latter have given us such good results that we have earned some extra money,” said Juanita.

“The benefits we got from our land allowed us to give our children a future. Some of them have graduated from college and have jobs; others are about to graduate, but they have all learned to work the land. It feels a little harder, but I have been able to take care of both: my family and the land. I don’t know how I did it, but I did it,” said Juanita proudly, noting that the scientific knowledge gained from the research platform and Hub modules has had a real and positive impact on her and her family.

Photo: Juanita, a Tzeltal woman from La Providencia in Ocosingo, Chiapas, stands in her field. (Garcia, Ramirez and Meentzen/CIMMYT) 

Mexico safeguards agriculture against invasive pests, diseases

In 2023, Mexico, with CIMMYT’s support, rejected 1,463 risky agricultural shipments, preventing 258 quarantine-worthy pests from entering the country. CIMMYT highlighted climate change’s role in pest spread, emphasizing Mexico’s commitment to safeguarding food production and ensuring global food security.

Read the full story.

Advancing wheat breeding through rapid marker-selectable trait introgression

The experimental research station in Toluca, Mexico. (Photo: S. Herrera/CIMMYT)

In the ever-evolving field of agriculture, AGG-WHEAT is leading a transformative approach through rapid marker-selectable trait introgression in wheat breeding programs. This method aims to streamline the process of integrating desirable traits into various genetic backgrounds.

At the core of AGG-WHEAT’s strategy is the establishment of a centralized marker-selectable trait introgression pipeline. This initiative seeks to facilitate the transfer of specific genes from a centralized source into various genetic backgrounds within plant breeding programs. Molecular markers play a crucial role in efficiently identifying and selecting target traits.

The merits of a centralized trait introgression pipeline extend beyond convenience. This approach ensures a more uniform and controlled transfer of genetic material, enhancing the precision of trait introgressions across diverse breeding lines. Molecular markers streamline the selection process, improving the accuracy of desired trait incorporation into wheat varieties.

Speed breeding facilities in Toluca, Mexico

AGG-WHEAT’s marker-selectable trait introgression pipelines are implemented at the speed breeding facilities located at the CIMMYT research station in Toluca, Mexico. These facilities serve as the incubators for innovation, where new selection candidates are evaluated based on various criteria. The decision-making process involves an expert panel comprising geneticists, trait specialists, and breeders. This panel annually determines the selection candidates, considering factors such as trait demand, genetic diversity, evidence of Quantitative Trait Loci (QTL) effects, selection efficiency, and available funding.

The decision-making process involves a multifaceted evaluation of potential selection candidates. Documented trait pipelines and product profiles guide decision-making to ensure alignment with the overarching goals of wheat breeding programs. Considerations include the need for phenotypic variation and the existence of limited genetic diversity for the trait under consideration.

The decision-making process also explores existing in-house or external evidence of QTL effects and the underlying gene mechanisms. Selection efficiency, contingent on the availability of accurate molecular markers and a known purified donor parent, further refines the pool of potential candidates. Established phenotypic protocols for product testing and the crucial element of available funding complete the decision-making criteria.

Achievements

In a significant step towards innovation, the products of the first marker-selectable trait introgression pipelines entered yield trials in 2023. This marks a transition from conceptualization to tangible impact, reflecting the efficacy of AGG-WHEAT’s approach. A total of 97 F5-lines, cultivated through the marker-assisted backcross (MABC) scheme, now grace the fields.

These lines carry novel genes associated with fusarium head blight and rust resistance, derived from wheat genetic resources and wild relatives. The choice of these traits underscores AGG-WHEAT’s commitment to addressing challenges faced by wheat crops, ensuring improved resilience and sustainability in the face of evolving environmental conditions.

The success of these initial trait introgression pipelines represents more than a scientific achievement; it marks a pivotal moment in the trajectory of wheat breeding. The 97 F5-lines, standing as testaments to enhanced resistance traits, are poised to make a transition into mainstream breeding pipelines. This marks the commencement of a broader dissemination strategy, where these lines will be distributed for testing at National Agricultural Research and Extension Services (NARES).

The journey from the experimental fields to mainstream adoption involves a meticulous process. These lines, having undergone rigorous evaluation and selection, now hold the potential to catalyze changes in commercial wheat varieties. The lessons learned from their cultivation will shape future breeding strategies and contribute to the resilience of wheat crops in diverse agricultural landscapes.

Rapid marker table. (Photo: CIMMYT)

AGG-WHEAT’s lasting impact

AGG-WHEAT’s marker-selectable trait introgression stands as an innovative approach in wheat breeding. The centralized approach, the strategic use of molecular markers, and the meticulous decision-making process exemplify the commitment to excellence and precision. The journey from concept to reality—marked by the entry of 97 F5-lines into yield trials—signals a new era in wheat breeding.

As these lines traverse from experimental fields to mainstream adoption, they carry the promise of transforming the landscape of commercial wheat varieties. AGG-WHEAT’s lasting impact goes beyond the scientific realm; it extends to the fields where farmers strive for sustainable and resilient wheat crops. In the tapestry of agricultural progress, AGG-WHEAT has woven a thread of innovation that holds the potential to redefine the future of wheat cultivation.

Enhancing wheat breeding efficiency in South Asia through early germplasm access

Wheat field. (Photo: CGIAR)

In the dynamic landscape of wheat breeding, early access to germplasm emerges as a strategic catalyst for accelerating variety turnover and meeting the evolving challenges faced by farmers in South Asia. Since its inception, the Accelerating Genetic Gains in Maize and Wheat (AGG) project has pioneered new tools to optimize the wheat breeding process. One such tool, the efficient and low-cost 3-year breeding cycle, has been fine-tuned in Mexico, using the Toluca screenhouse and field advancement in ObregĂłn, laying the groundwork for faster variety turnover.

The inaugural set of lines generated through this enhanced breeding cycle is already undergoing Stage 1 trials in the ObregĂłn 2023-24 season. However, the innovation doesn’t stop there; to expedite the variety release process and garner robust data from the Target Population of Environments (TPE), Stage 2 lines are being rigorously tested at over 20 sites in South Asia through collaboration with National Agricultural Research and Extension Services (NARES) partners. In the seasons spanning 2021-2024, a total of 918 Stage 2 lines underwent rigorous trials, aiming to provide early access to improved wheat lines for testing and release by NARES and establish a genetic correlation matrix between ObregĂłn selection environments and diverse sites across South Asia.

These extensive trials serve a dual purpose. Firstly, they facilitate early access to improved wheat lines for testing and release by NARES, bolstering the agricultural landscape with resilient and high-yielding varieties. Secondly, they contribute to the establishment of a genetic correlation matrix between the selection environments in ObregĂłn and the diverse sites across South Asia. This matrix becomes a guiding compass, aiding in selecting the most promising lines for broader TPEs in South Asia and beyond.

Transformative impact on wheat varieties in South Asia

Through the support of our partners and funders from the Bill & Melinda Gates Foundation, the Foundation for Food and Agriculture Research (FFAR), the UK Foreign, Commonwealth & Development Office (FCDO), and the US Agency for International Development (USAID), great achievements have been recorded throughout the region. India, a prominent player in wheat cultivation, stands as a testament to the transformative impact of early access to advanced lines. The top three varieties, namely DBW187, DBW303, and DBW 222, covering over 6 million hectares, trace their roots to CIMMYT varieties. Adopting a fast-track approach through early-stage testing of these advanced lines at BISA sites in India, supported by the Delivering Genetic Gain in Wheat (DGGW) project, facilitated the release of these varieties two years ahead of the regular testing process. This expedited varietal release was complemented by the innovative early seed multiplication and dissemination approach introduced by the Indian Council of Agricultural Research (ICAR). Recent additions to this accelerated channel include varieties such as DBW 327, DBW 332, DBW 370, and 371, promising further advancements in wheat cultivation.

Pakistan

In Pakistan, the early access to advanced lines has been a catalyst for releasing high-yielding, climate-resilient, and nutritious wheat varieties. In 2023 alone, 12 new varieties were released, with the renowned ‘Akbar-19,’ introduced in 2019, covering a substantial 42% of cultivated land in Punjab. Data released by the Ayub Agricultural Research Institute (AARI), shows that this variety, known for its high yield potential, disease resistance, and enriched zinc content, has significantly contributed to increased wheat production in the region.

Nepal

Guided by policy interventions in the national varietal testing process, Nepal has experienced the fast-track commercialization of high-yielding and climate-resilient wheat varieties. Allowing multilocation testing of CIMMYT nurseries and advanced elite lines, Nepal released six biofortified zinc wheat varieties in 2020. The expeditious seed multiplication of these released and pre-release varieties has facilitated the rapid spread of new and improved wheat varieties.

The strategic utilization of early access to wheat germplasm in South Asia holds promise in accelerating variety turnover, offering farmers resilient and high-performing wheat varieties. Collaborative efforts between research institutions, government bodies, and international organizations exemplify the power of innovation in transforming agriculture. With an ongoing dedication to refining breeding cycles, expanding testing initiatives, and fostering collaboration, the AGG project contributes to building a sustainable and resilient agricultural future in South Asia. Early access to wheat germplasm emerges as a practical approach in this scientific endeavor, laying the foundation for a climate-resilient and food-secure region. The successes witnessed in India, Pakistan, and Nepal underscore the transformative potential of this approach, offering tangible benefits for agricultural communities in South Asia and beyond. In navigating the complexities of a changing climate and growing food demand, early access to wheat germplasm remains a pragmatic ally, propelling agricultural innovation and resilience to new heights.

Examining how insects spread toxic fungi

Maize grain heavily damaged by the larger grain borer and maize weevil. (Photo: Jessica GonzĂĄlez/CIMMYT)

According to the World Health Organization (WHO), 10% of the global population suffers from food poisoning each year. Aflatoxins, the main contributor to food poisoning around the world, contaminate cereals and nuts and humans, especially vulnerable groups like the young, elderly, or immune-compromised, and animals are susceptible to their toxic and potentially carcinogenic effects.

Fungi contamination occurs all along the production cycle, during and after harvest, so the mitigation of the mycotoxins challenge requires the use of an integrated approach, including the selection of farmer-preferred tolerant varieties, implementing good agricultural practices such as crop rotation or nitrogen management, reducing crop stress, managing pests and diseases, biological control of mycotoxigenic strains, and good post-harvest practices.

Monitoring of mycotoxins in food crops is important to identify places and sources of infestations as well as implementing effective agricultural practices and other corrective measures that can prevent outbreaks.

A bug problem

Insects can directly or indirectly contribute to the spread of fungi and the subsequent production of mycotoxins. Many insects associated with maize plants before and after harvest act as a vector by carrying fungal spores from one location to another.

International collaboration is key to managing the risks associated with the spread of invasive pests and preventing crop damage caused by the newly introduced pests. CIMMYT, through CGIAR’s Plant Health initiative, partners with the Center for Grain and Animal Health Research of the US Department of Agriculture (USDA) and Kansas State University are investigating the microbes associated with the maize weevil and the larger grain borer.

The experiment consisted of trapping insects in three different habitats, a prairie near CIMMYT facilities in El Batán, Texcoco, Mexico, a maize field, and a maize store at CIMMYT’s experimental station at El Batán, using Lindgren funnel traps and pheromones lures.

Hanging of the Lindgren funnel traps in a prairie near El BĂĄtan, Texcoco, Mexico. (Photo: Jessica GonzĂĄlez/CIMMYT)

Preliminary results of this study were presented by Hannah Quellhorst from the Department of Entomology at Kansas State University during an online seminar hosted by CIMMYT.

The collected insect samples were cultured in agar to identify the microbial community associated with them. Two invasive pests, the larger grain bore and the maize weevil, a potent carcinogenic mycotoxin was identified and associated with the larger grain borer and the maize weevil.

The larger grain borer is an invasive pest, which can cause extensive damage and even bore through packaging materials, including plastics. It is native to Mexico and Central America but was introduced in Africa and has spread to tropical and subtropical regions around the world. Together with the maize weevil, post-harvest losses of up to 60% have been recorded in Mexico from these pests.

“With climate change and global warming, there are risks of these pests shifting their habitats to areas where they are not currently present like sub-Saharan Africa and North Africa,” said Quelhorst. “However, the monitoring of the movement of these pests at an international level is lacking and the microbial communities moving with these post-harvest insects are not well investigated.”

Ricardo Curiel

Responsible for assisting the Director General with internal and external communications about CIMMYT’s impact, main accomplishments and news relevant to stakeholders.

Visiting Chinese scholar devoted to agricultural research in Mexico

CIMMYT stands out for its role in agricultural innovation, demonstrated through the dedicated research of visiting Chinese scholar Wang Hui. Her tenure at CIMMYT underscores the center’s pivotal role in driving agricultural advancements through international partnerships, significantly contributing to global food security and scientific development.

Read the full story.

CIMMYT at the Borlaug Dialogue

Harnessing Change was the theme of the 2023 Borlaug Dialogue, an annual summit of international thought leaders, development specialists, researchers, farmers, and practitioners, designed to promote global food systems transformation and food security, and is organized by the World Food Prize Foundation.

This iteration of the Borlaug Dialogue, held in Des Moines, Iowa, October 24-26, 2023, was the site of the inauguration of a collaboration between CIMMYT and the Gorongosa Restoration Project to improve climate resilience, food security and nutrition in Mozambique’s Gorongosa National Park.

“These kinds of collaborations exemplify what the Borlaug Dialogue is all about,” said CIMMYT Director General Bram Govaerts. “The annual event and the work of the World Food Prize Foundation year-round is dedicated to bringing people and organizations together to work better and smarter. CIMMYT is proud to be a part of it.”

CGIAR Centers based in the Americas host discussion on Latin America’s food security challenges and opportunities

CIMMYT, the International Potato Center (CIP), the Alliance of Bioversity International and the International Center for Tropical Agriculture, and International Food Policy Research Institute (IFPRI) co-organized the side event Maximizing Latin America and the Caribbean’s Contributions to Global Agriculture and Biodiversity Solutions at Dialogue.

Govaerts moderated the panel discussion and the Q&A session that followed with members of the audience.

Panelists, including Elsa Murano, director of the Norman E. Borlaug Institute for International Agriculture & Development, Rob Bertram, chief scientist for the Bureau for Resilience and Food Security at the U.S. Agency for International Development (USAID), and María (pilu) Giraudo, honorary president of Argentina’s No Till Farmers Association, shared views on Latin America’s role in global agriculture from academic, development and farming offer academic insights, international cooperation recommendations and farmer perspectives.

CIMMYT and USAID co-host panel focused on AID-I’s impact at the Borlaug Dialogue

CIMMYT and USAID hosted an event at the Dialogue organized by the World Food Prize Foundation on October 25 focused on the Southern Africa Accelerated Innovation Delivery Initiative (AID-I).

The discussion labelled, Harnessing Innovation to Rapidly Respond to Crises, aimed to present AID-I’s innovative approach to addressing systemic weaknesses in agriculture by accelerating the market-based delivery of improved seeds, fertilizers, and critical information to farmers.

(Left to right) Bram Govaerts, Kevin Kabunda and Dina Esposito. (Photo: CIMMYT)

Dina Esposito, USAID’s Global Food Crisis coordinator and assistant to the Administrator for the Bureau for Resilience, Environment and Food Security, described how AID-I is “turning crisis into opportunity” by improving farmers’ resilience and profitability.

“We joined CIMMYT and went to Zambia, and the partnership was a glimmer in our eyes,” said Esposito, referring to a recent visit to a model farm with AID-I partners.

Reporting progress in Zambia, Malawi and Tanzania, Kevin Kabunda, CIMMYT’S AID-I chief of party in southern Africa, noted that the private sector had produced 13,000 tons of maize in the first year.

“The extended or increased potential for every farmer who uses fall armyworm-tolerant varieties translates to US$100 dollars,” said Kabunda who estimated AID-I reached 1.3 million farmers in its first year generating an aggregated value of at least US$65 million dollars.

In addition, Mtieyedou (Abdou) Konlambigue, AID-I chief of party in the Great Lakes Region, pointed out that the project has given access to new bean varieties and fertilizer recommendations to over 500,000 farmers in Rwanda, Burundi and the Democratic Republic of the Congo.

Farmers take the stage

Two champion farmers, María (pilu) Giraudo and Guillermo Bretón joined CIMMYT’s Director General, Bram Govaerts, and CGIAR Board Chair, Lindiwe Majele Sibanda, during a main stage session of the Borlaug Dialogue organized by the World Food Prize Foundation on Tuesday, October 24.

The event, MasAgro Taking it to the Farmer, reported on progress achieved and milestones reached by one of CIMMYT’s flagship projects, Crops for Mexico (MasAgro), which began 14 years ago and earned Govaerts the 2014 Norman E. Borlaug Award for Field Research and Application endowed by The Rockefeller Foundation.

Giraudo, an Argentinian farmer who co-founded the Rural Women Network and serves as honorary president of Argentina’s no till farmer association Aapersid, said that the best way to acknowledge MasAgro’s work is to seize the opportunity to offer women farmers the possibility of having full access to science and technology.

Bretón, a farmer from Mexico’s state of Tlaxcala, described MasAgro as a disruptive way of understanding agriculture. “Investing in our soils is better than investing in a one-cycle crop,” he said.

CGIAR Board Chair Lindiwe Majele Sibanda was enthusiastic about the project’s trajectory and proud of its evolution into CIMMYT’s ongoing efforts, including adapting MasAgro to southern Africa.

Sibanda expressed her excitement about MasAgro-inspired activities in Africa and praised the diversified seed systems that today include dryland crops sold in smaller seed bags by young entrepreneurs who are taking up businesses in villages without having to go to urban centers.

Govaerts moderated the event and thanked Dina Esposito, and U.S. Special Envoy for Global Food Security, Cary Fowler, for facilitating the establishment of MasAgro programs in southern Africa.

Public and Private Plant Breeding: Finding Common Ground

Seed the World Group hosted a webinar to find a common ground between public and private breeding programs in North America and some possible paths forward. Fernando Gonzalez, a retired plant breeder from CIMMYT mentioned a noticeable uptick in the involvement of the private sector in breeding programs in Mexico.

Learn more about the primary goals underlying public and private breeding efforts.

 

 

 

Harnessing new high-resolution satellite imagery to plant breeding

In plant breeding, efforts to increase the rate of genetic gains and enhance crop resilience to the effects of climate change are often limited by the inaccessibility and costs of phenotyping methods. The recent rapid development of sensors, image-processing technology and data analysis has provided new opportunities for multiple scales phenotyping methods and systems. Among these, satellite imagery may represent one of the best ways to remotely monitor trials and nurseries planted in multiple locations, while standardizing protocols and reducing costs.

This is because relevant data collected as part of crop phenotyping can be generated from satellite images. For instance, the sensors onboard the SkySat satellite constellation of Planet Labs have four spectral bands—blue, green, red, and infrared—which can be used to calculate the normalized difference vegetation index (NDVI), which is a measure of vegetation and its greenness, and various canopy traits like ground cover, leaf area index and chlorosis. It can also be used to monitor plot establishment and phenological parameters.

High-resolution RGB orthomosaic of wheat experiments, assessing the effect of plot size and spacing in the spectral signature, collected from SkySat satellite images. (Photo: Gilberto Thompson)

The use of satellite-based phenotyping in breeding trials has typically been restricted by low resolution, high cost and long intervals between fly-overs. However, the advent of a new generation of high-resolution satellites—such as the SkySat constellation—now offers multispectral images at a 0.5m resolution with close to daily acquisition attempts on any place on Earth. This could be a game changer in terms of the scale at which yield trials can be conducted, enabling more precise variety placement and thereby increasing genetic diversity across farmer’s fields and reducing the probability of disease epidemics. It could also revolutionize the capacity for research in realistic field conditions, since traits can be measured throughout the cycle in a highly standardized way, over multiple sites at low cost. For example, an image which covers 25 km2 can monitor an entire research station at a cost of about US$300.

To test the suitability of this technology, a team of researchers from CIMMYT set out to evaluate the reliability of SkySat NDVI estimates for maize and wheat breeding plots of different sizes and spacing, as well as testing its capacity for detecting seasonal changes and genotypic differences.

Both their initial findings, recently published in Frontiers in Plant Science, and more recently acquired data, show that the SkySat satellites can be used to monitor plots commonly used in wheat and maize nurseries. While wheat yield plots usually are 1.2m wide, maize plots tend to consist of at least two rows, resulting in a width of 1.5m. Plot length ranges from 2-4m. The authors also discuss on other factors to be considered when extracting and interpreting satellite data from yield trials, such as plot spacing.

Through the successful collection of six satellite images in Central Mexico during the rainy season and parallel monitoring of a maize trial in Zimbabwe, the researchers demonstrate the flexibility of this tool. Beyond the improvement of spatial resolution, the researchers suggest that the next challenge will be the development and fine-tuning of operational procedures that ensure high quality, standardized data, allowing them to harness the benefits of the modern breeding triangle, which calls for the integration of phenomics, enviromics and genomics, to accelerate breeding gains.

Read the full study: Satellite imagery for high-throughput phenotyping in breeding plots

This research was supported by the Foundation for Food and Agriculture Research, the CGIAR Research Program on Maize, the CGIAR Research Program on Wheat, and the One CGIAR Initiatives on Digital Innovation, F2R-CWANA, and Accelerated Breeding.

Catalyzing smallholder farming in Mexico

Scientists from CIMMYT, founded in Mexico in 1966, have pursued decades of participatory research with Mexico’s smallholder maize farmers to improve their local varieties for traits like yield and insect resistance, while preserving their special grain quality, as well as testing and promoting zero-tillage and other resource-conserving farming practices.

Farmer Maria Luisa Gordillo Mendoza harvests a plot of maize grown with conservation agriculture techniques in her field in Nuevo México, Chiapas. (Photo: Peter Lowe/CIMMYT)

Smallholder farm operations account for more than 80% of all farms worldwide and produce roughly 35% of the world’s food, according to FAO census data and follow-up studies.

An estimated two-thirds of the Mexico’s farmers are smallholders, typically working challenging agroecologies scattered across the country’s mountainous terrain and applying generations-old subsistence practices to grow low-yielding local maize varieties.

Ancient milpa multicropping systems can lift up the present and future

The milpa intercrop — in which maize is grown together with beans, squash, or other vegetable crops — has a millennial history in the Americas and can furnish a vital supply of food and nutrients for marginalized, resource-poor communities.

One hectare of a milpa comprising maize, common beans, and potatoes can provide the annual carbohydrate needs of more than 13 adults, enough protein for nearly 10 adults, and adequate supplies of many vitamins and minerals, according to a CIMMYT-led study in the western highlands of Guatemala, an isolated and impoverished region, reported in Nature Scientific Reports in 2021.

But milpas are typically grown on much smaller areas than a hectare, so households cannot depend on this intercrop alone to satisfy their needs. A solution? Customized milpas that merge farmers’ age-old wisdom and practices with science-based innovation.

An example is planting fruit trees — guava, avocado, mango, peaches, or lime among others — among milpa crops in lines perpendicular to hill slopes. The practice was tested and promoted in the Los Tuxtlas region of the state of Veracruz by Mexico’s National Institute of Forestry, Agriculture, and Livestock Research (INIFAP) and the Colegio de Postgraduados (ColPos) and has been refined by farmers in other areas through CIMMYT-led innovation networks.

Planted milpa crops in lines perpendicular to the slope on a steep hillside in Chiapas, Mexico. (Photo: Peter Lowe/CIMMYT)

In Los Tuxtlas the practice provided added income and nutrition, dramatically reduced erosion, improved land and water-use efficiency by around 50%, and boosted soil health and fertility.

In the state of Puebla and other parts of South and southwestern Mexico, milpa-fruit tree intercrops have worked well on steep hillsides. In the state of Oaxaca, for example, versions of the practice have notably improved farming by indigenous communities in the Mixe and Mazateca regions, supported by outreach of the Mexican Agency for the Sustainable Development of Hillsides (AMDSL), a partner in a CIMMYT research hub in the region.

Research by AMDSL and CIMMYT on smallholder plots in two Oaxaca municipalities where farmers have been combining milpas with peach and avocado production and conservation agriculture practices for more than a decade found that cropping diversification, together with use of zero tillage and keeping crop residues on the soil rather than removing or burning them, raised total yearly crop outputs by as much as 1.7 tons per hectare and reduced farmers’ risk of catastrophic crop losses due to droughts or other climate extremes.

Blue maize pleases diners and delivers profits

Farmers’ local maize varieties yield less than hybrids but are still grown because they provide ideal grain quality for traditional foods, as well as marketable stalks and leaves to feed farm animals and maize husks for wrapping tamales, to name a few products.

Building on longstanding partnerships with INIFAP and the Autonomous University of Chapingo (UACh) to improve local varieties and preserve maize genetic diversity in Mexico, CIMMYT breeders have recently developed improved blue maize hybrids and open-pollinated varieties.

Sought by restauranteurs worldwide for its flavor and beauty, blue maize grain normally comes from native varieties grown by smallholder farmers on small plots with low yields and variable quality.

The new CIMMYT varieties are derived from traditional Guatemalan, Mexican, and Peruvian landraces and feature higher yields, more consistent grain quality, and enhanced resistance to common maize diseases, offering smallholders and other Mexican farmers a profitable product for the country’s booming restaurant industry and for export chains.

Selection of corn varieties for the state of Morelos, Mexico. (Photo: ACCIMMYT)

Parental inbred lines of the new hybrids have been distributed to private and public partners, who are developing their own hybrids and OPVs in Mexico. CIMMYT continues to test the new hybrids under various farming systems to ensure they produce stable yields when grown in farmers’ fields.

Data driven extension

Using cutting-edge data systems, CIMMYT has leveraged information from nearly 200,000 plots representing more than 26,000 hectares across diverse agroecologies to offer Mexican farmers — including smallholders — site-specific recommendations that make their farming systems more productive, resilient, and sustainable. The initiative was supported by MasAgro, an integrated development partnership of Mexico and CIMMYT during 2010-21 and funded by Mexico’s Secretariat of Agriculture and Rural Development (SADER).

Smallholder Mexican farmers adopt resource-conserving innovations: slowly and in bits

Small-scale farmers in Mexico often adopt conservation agriculture innovations gradually and piecemeal, to fit their diverse agroecological and socioeconomic contexts and risk appetites, according to studies and the on-farm experience of CIMMYT.

Research and extension efforts need to consider this in work with smallholders, said Santiago Lopez-Ridaura, a CIMMYT specialist in agricultural systems and climate change adaptation.

“Farmer practices typically involve heavy tillage before seeding, growing maize as a monocrop, and removing crop residues after harvest for use as forage,” explained Lopez-Ridaura. “Full-on conservation agriculture (CA) is a radical shift, requiring farmers to reduce or eliminate tillage, keep a permanent cover of crop residues on the soil, and diversify the crops they grow. It can support more intense yet environmentally friendly farming, reducing erosion, improving soil fertility and water filtration, boosting crop yields, and saving farmers money. However, it also requires purchasing or contracting specialized sowing implements and fencing fields or agreeing with neighbors to keep livestock from eating all the residues, to name just a few changes.”

Conserving crop residues favors production systems and provides various benefits. (Photo: Simon Fonteyne/CIMMYT)

Lopez-Ridaura and colleagues published a 2021 analysis involving farmers who grew maize and sorghum and keep a few livestock on small landholdings (less than 4 hectares), with limited mechanization and irrigation, in the state of Guanajuato, Central Mexico.

They found that scenarios involving hybrid maize plus a legume crop with zero-tillage or keeping a residue mulch on the soil provided an average net profit of some US $1,600 (MXP 29,000) per year, in addition to ecological benefits, added forage, and more stable output under climate stress.

“Using a modeling framework from Australia’s Commonwealth Scientific and Industrial Research Organization (CSIRO) that combines bioeconomic simulation, risk analysis, adoption theory, and impact assessment, we not only confirmed the worth of conservation agriculture but found that disaggregating CA into smaller component packages and including a more productive crop and variety were likely to increase farmers’ adoption, in riskier settings.”

Advancing more sustainable farming in Mexico

Conservation agriculture can generate substantial economic and environmental benefits under marginal conditions, particularly by enhancing climate change resilience, increasing soil organic matter, and retaining soil moisture. In Central Mexico dryland maize yields rose by 38-48%, after 10 years of implementing CA.

CIMMYT’s multi-crop, multi-use zero tillage seeder at work on a long-term conservation agriculture (CA) trial plot, left, at the center’s headquarters at El BatĂĄn, Mexico. (Photo credit: CIMMYT)

CIMMYT has studied and promoted zero-tillage for maize and other resource-conserving practices in Mexico for more than three decades, but efforts to spread sustainable farming and use of improved maize and wheat varieties redoubled thanks to MasAgro, a research initiative led by the Center and supported by the government of Mexico during 2010-21. Testimonials such abound of Mexican smallholder farmers who have adopted and benefited from CA practices through CIMMYT and national partners’ efforts in MasAgro and other initiatives.

  • Looking to lower his farm costs without losing output, wheat and oil crop farmer Alfonso Romo of Valle de Mayo, state of Sonora, began practicing CA in 2010. “We’ve learned a lot and this year (2022) we obtained the same yields as we used to get through conventional practices but, following more sustainable farming methods, with a 30 and even 40% savings in fertilizer.”
  • With CA practices he adopted in 2018 through MasAgro, maize farmer Rafael Jacobo of Salvatierra, state of Guanajuato, obtained a good crop despite the late dispersal of irrigation water. Seeing his success and that of other nearby farmers, neighbor Jorge Luis Rosillo began using CA techniques and has noticed yearly improvements in his soil and yields. “I did everything the technicians recommended: keeping the residues on the soil and renewing only the sowing line on soil beds
. There are lots of advantages but above all the (cost) savings in land preparation.”
The Milpa Sustentable project in the Yucatan Peninsula is recognized by the UN as a world example of sustainable development. (Photo: CIMMYT)
  • Farmers in the Milpa Sustentable project in the YucatĂĄn Peninsula have improved maize yields using locally adapted CA methods, in collaboration with the Autonomous University of YucatĂĄn. Former project participant Viridiana Sei said she particularly liked the respectful knowledge sharing between farmers and project technicians.
  • CA practices have allowed more than 320 women farmers in the Mixteca Region of the state of Oaxaca to provide more and better forage for the farm animals they depend on, despite drought conditions, through the Crop and Livestock Conservation Agriculture (CLCA) project supported by the International Fund for Agricultural Development (IFAD). According to farmer MarĂ­a MartĂ­nez Cruz, “… it hasn’t rained much and everything’s dry, but our verdant oat crop is allowing us to keep our farm animals fed.”
  • With CLCA support and facing Mexico’s increasingly fickle rainy season, farmer Mario GuzmĂĄn Manuel of San Francisco ChindĂșa village in Oaxaca began using CA and says he’ll never go back to the old practices. “We used to do as many as two harrow plowings to break up the soil, but if we leave the residues from the previous crop, they hold in the soil moisture more effectively. People hang onto the old ways, preferring to burn crop residues, but we should understand that this practice only deprives the soil of its capacity to produce.”