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Tag: maize

Strengthening capacity and building national and regional partnerships in the seed sector

Written by Sarah McLaughlin on . Posted in Features.

Hybrid seeds exhibit a significant potential to boost on-farm productivity and attain food security. Still, the availability, affordability and accessibility of such quality seeds remain a challenge for farmers in South Asia. Primarily driven by the demand from the poultry industry, maize productivity in the region is increasing annually. Yet, the hybrid maize seed coverage is below 50% in most South Asian countries.

In continuation of its capacity-building initiatives, the International Maize and Wheat Improvement Center (CIMMYT) conducted an International Training Workshop on Quality Hybrid Maize Seed Production and Seed Business Management in South Asia on August 15-18, 2022, in Kathmandu, Nepal. The four-day hybrid training was jointly organized by Nepal’s Seed Quality Control Center, Nepal Agricultural Research Council (NARC), Seed Entrepreneurs’ Association of Nepal and CGIAR’s Seed Equal Initiative. Primarily, the event aimed at strengthening the capacity of seed stakeholders on the latest advances in quality hybrid maize seed production and establishing competitive hybrid seed business strategies.

Around 60 participants comprising of private seed company owners, national and international seed system specialists, maize breeders, crop inspectors, seed agronomists, marketers, policymakers and researchers working in hybrid seed production and marketing attended the training. Representatives were invited from Nepal, India, Bangladesh and Pakistan.

Principal trainer, John MacRobert, shared examples and knowledge in the principles of hybrid maize seed production and seed business. Former principal scientist of CIMMYT, MacRobert is currently the managing director of Mukushi Seeds Pvt Ltd in Zimbabwe and director of Quality Seed Pvt Ltd in South Africa. The training also involved group discussions and exercises on preparing a seed road map as well as developing profitable seed business plans. The participants used a seed business model canvas tool to chart their production plans, develop marketing strategies and diagnose profit. In 2018, MacRobert trained 15 private seed companies from Nepal and Pakistan on hybrid seed business mentorship course in Kathmandu. Since then, the participants brought in and shared rich practical experiences from their own businesses and regulatory organizations during this year’s program.

Joining MacRobert were 14 national and international experts from CIMMYT and other institutions, who delivered sessions related to hybrid maize breeding principles and techniques, seed quality control measures and regulations, and variety registration and licensing policies and procedures.

The forum offered an excellent learning opportunity for the national and international participants to exchange knowledge and experiences from seed specialists on developing competitive hybrid maize and seed production technologies that will bring cost-efficiency in production and maximize crop yields and business profits. It also served as a ground for establishing networks and collaborations. The mutual learnings will contribute to building national and regional partnerships in the seed sector.

Participants reflected on the learnings and benefits gained from the comprehensive course, which they would apply to improve maize productivity in their respective countries.

Muhammad Aslam, assistant professor from the University of Agriculture Faisalabad in Pakistan, acknowledged the opportunity provided to him and his university. He mentioned the support of CIMMYT in Pakistan in strengthening the local maize seed industry, where the market share of local seed companies is gradually increasing due to the elite germplasm support and capacity development efforts by CIMMYT. He added that the practical knowledge gained from the training will enhance the university students’ skills.

Attendees at the International Training Workshop on Quality Hybrid Maize Seed Production and Seed Business Management in South Asia. (Credit: Bandana Pradhan/CIMMYT)

An ode to seeds

During the closing session of the training, Govinda Prasad Sharma, Secretary of the Ministry of Agriculture and Livestock, handed over diverse maize seeds to the NARC and seven private seed company partners of the Nepal Seed and Fertilizer (NSAF) project. CIMMYT acquired the elite maize parental lines and breeder seeds from its international maize breeding hubs in Mexico, Zimbabwe, Colombia and India. The seeds have the potential of yielding 6-7 metric tons per hectare for synthetics and more than 10 metric tons for hybrids–a significant increase from 3-5 metric tons of local seeds. More importantly, given the current climate challenges Nepali farmers are facing, these climate-resilient seeds reach maturity earlier than local varieties which reduces their exposure to drought. These seeds will also withstand Fall Armyworm infestations, a devastating pest threatening maize production in Nepal.

“Genetic materials that will not only enhance yield but diversify the gene pool of crops in Nepal is extremely important,” said Lynn Schneider, deputy director of the Economic Growth Office at United States Agency for International Development (USAID) Nepal. “Agriculture must combat climate change and malnutrition, which are critical for the South Asia region. So, I am really proud that we are working on these areas,” shared Schneider.

“Food security is a priority for the Government of Nepal,” explained Sharma. He mentioned maize as an essential commodity from the food and feed perspective for South Asia and plans to collaborate with the private sector and donor organizations to increase maize productivity in the country. “The event will definitely help in augmenting the activities and accelerate the pathway towards achieving food and feed security,” he added.

Moreover, a certificate of appreciation was presented to Nepal’s National Maize Research Program to recognize their effective collaboration in hybrid maize varietal promotion and source seed distribution. Similarly, three partner seed companies of the project were also recognized for the breakthrough in becoming the first recipients of the Government of Nepal’s research and development license to register and produce hybrid seeds on a commercial basis.

CIMMYT also launched an assessment report on Cereal Seeds Value Chain in Nepal that provides evidence-based recommendations for developing Nepal’s formal cereal seed sector, specifically maize and rice. The publication highlights the need for a well-performing seed system where high-quality seeds of a wide range of varieties and crops are produced and available in time and affordable to farmers.

Deepak Bhandari, executive director of NARC, also congratulated the authors and expressed the significance of formulating and implementing inclusive strategies to build a vibrant seed industry in Nepal. He also acknowledged the event organizers for conducting an exceptional international workshop on hybrid maize seeds for the public and private seed stakeholders.

Cover photo: Training attendees gather to discuss competitive hybrid maize seed production technologies and build relationships with seed systems professionals. (Credit: Bandana Pradhan/CIMMYT)

The potential of conservation agriculture in increasing yield and tackling climate change

Written by Celine Lim on . Posted in Publications.

A multitude of research on the benefits of conservation agriculture in South Asia has predominantly focused on favorable environments where farmers have reliable access to energy supporting irrigation and inputs.

In this new publication, scientists from the International Maize and Wheat Improvement Center (CIMMYT) explore the performance of conservation agriculture in under-developed coastal environments in southern coastal Bangladesh over a period of three consecutive years, including under rainfed conditions and/or with limited application of irrigation.

Farmers calibrate their machines for strip tillage in communities participating in experiments. (Credit: Ranik Martin)

Responding to the identified research gap, this research tests the hypothesis that seasonally alternating tillage (SAT) practices that alternate between strip-tillage in the winter season for maize and conventional tillage (CT) prior to rice can reduce energy use, increase energy productivity, and reduce yield-scaled emissions while increasing or maintaining yield and profit, even under these challenging conditions.

Working with 35 farmers who managed experiments in partially irrigated and rainfed environments in southern coastal Bangladesh, researchers teamed up with farming communities to compare the full suite of conservation agriculture to SAT practices against CT and farmer’s own practices.

The research found that in these coastal environments, both conservation agriculture and SAT practices have the potential to increase cereal yields and energy productivity while reducing yield-scaled emissions, thereby enabling farmers even in challenging coastal environments to produce more while reducing energy use and mitigating greenhouse gas emissions.

However, in consideration of farmers’ aversion to the elimination of tillage in rice, the research suggests that adaptations in CA practices and seasonal tillage prior to rice may be a more practical fit for rice-maize systems managed by smallholders reluctant to eliminate tillage for rice in coastal Bangladesh.

This research gives implications for future research and development efforts to take into consideration farmers’ preferences or the trade-offs resulting from significant change to conservation agriculture management in otherwise fully tilled systems. It is also vital to integrate development efforts that focus not only on agronomic management, but also on building supportive value chains to improve availability and affordability of the inputs and farm machinery required to successfully establish crops with such practices.

Read the full study: Adapted Conservation Agriculture Practices Can Increase Energy Productivity and Lower Yield-Scaled Greenhouse Gas Emissions in Coastal Bangladesh

Cover photo: Long-term conservation agriculture in Rajshahi, Bangladesh. (Credit: CIMMYT/Sam Storr)

Novel technology to reduce the complexity of maize seed production and increase maize hybrid yields in farmer’s fields

Written by Sarah Fernandes on . Posted in Publications.

A recently published study in Nature Communications Biology journal demonstrates the potential of a novel seed production technology to transform Africa’s seed production system, conferring important benefits to smallholder maize farmers and seed companies in sub-Saharan Africa.

The Seed Production Technology for Africa (SPTA) process enables production of non-pollen-producing inbred seed that can be used in a two-step multiplication process to produce commercial seed of hybrid varieties containing equal parts pollen producing and non-pollen producing plants.  The pollen producing plants provide pollen for the entire field, while the non-pollen producing plants deliver additional grain since they save energy by not producing pollen. Hybrids in which fifty percent of the plants are non-pollen producing have a significant grain yield advantage compared with hybrids in which all plants produce pollen.

Farmers and researchers evaluated the performance of fifty percent non-pollen producing (FNP) hybrids  in side-by-side comparisons across diverse farm sites in Kenya, South Africa, and Zimbabwe between 2016 and 2019. The results demonstrate that FNP hybrids deliver an average yield increase of 200 kg per hectare, representing a 10-20% increase at current sub-Saharan Africa yield levels where farmers face frequent drought and sub-optimal soil fertility. The FNP yield advantage was consistent in both low yielding and higher yielding conditions.  Additionally, in extensive farmer surveys, farmers rated the FNP hybrids higher than the pollen producing counterparts, recognizing the grain yield advantage. Favorable rating of FNP hybrids suggests that farmers are likely to adopt them once available.

Although consistent and steady improvement is being made for grain yield potential through plant breeding, the yield benefit of FNP hybrids is the equivalent of approximately six years of breeding progress under stressful conditions.  The FNP trait provided a consistent yield advantage in several genetically unique hybrids evaluated, indicating that the yield advantage from FNP will be complementary to and additive with progress from maize breeding efforts.

In sub-Saharan Africa, the challenge of delivering genetically pure, high-quality seed is substantial. Seed companies in the region contend with a complex and costly system to produce commercial seed. In addition to delivering higher grain yield to farmers through the FNP trait, the SPTA process will reduce the complexity of seed production, enabling seed producers to deliver higher purity improved hybrid seeds in sufficient quantities for smallholder farmers.

Hybrid seed production requires that one of the parents of the hybrid is prevented from producing pollen, ensuring that the seed harvested has been cross-fertilized by the pollen parent. Most hybrid seed production in sub-Saharan Africa involves physical removal of the tassels of the seed parent prior to the release of pollen, a process known as detasseling. Detasseling is important in commercial seed production to prevent self-fertilization of the seed parent plants. Nearly all detasseling in sub-Saharan Africa is done by hand, which is a labor-intensive and time-sensitive process. Poorly executed or ill-timed detasseling results in unwanted self-fertilization of the seed parent, leading to rejection of seed and incurring losses to the seed producer. Furthermore, timely detasseling typically involves removal of one or more leaves together with the tassel, reducing the photosynthetic capacity of the plant, and lowering the seed yield.

Use of the SPTA process ensures that the seed parent of the hybrid will not produce pollen, thereby eliminating the need for detasseling. This means seed producers can ensure higher integrity of hybrid seed while reducing costs and increasing seed yield. The technology is well suited for the three-way hybrid production commonly used in sub-Saharan Africa. Economic advantages to seed companies of using seed from the SPTA process is also expected to provide incentive to replace older, lower yielding varieties with more recently developed hybrids. Providing improved quality seed of better hybrids while delivering the yield advantage of the FNP trait can benefit smallholder maize farmers throughout the region. Saving costs can help the seed sector remain strong and competitive, which leads to increasingly better options for farmers in the future.

Read the full study: Incorporating male sterility increases hybrid maize yield in low input African farming systems

The research was conducted by scientists from the Seed Production Technology for Africa project, a collaborative initiative of the Agricultural Research Council of South Africa (ARC), International Maize and Wheat Improvement Center (CIMMYT), CortevaTM Agriscience, Kenya Agricultural and Livestock Research Organization (KALRO), and QualiBasic Seed Company (QBS).

Cover photo: A woman with a baby on her back evaluating maize plants farmer’s plots hosting FNP trials in Embu, Kenya. Photo: Hugo DeGroote/CIMMYT

MAIZE partners announce a new manual for effectively managing maize lethal necrosis (MLN) disease

Written by Sarah McLaughlin on . Posted in Features.

For a decade, scientists at the International Maize and Wheat Improvement Center (CIMMYT) have been at the forefront of a multidisciplinary and multi-institutional effort to contain and effectively manage maize lethal necrosis (MLN) disease in Africa.

When the disease was first reported in Kenya 2011 it spread panic among stakeholders. Scientists soon realized that almost all commercial maize varieties in Africa were susceptible. What followed was a superlative effort coordinated by the CGIAR Research Program on Maize (MAIZE) to mobilize “stakeholders, resources and knowledge” that was recently highlighted in an external review of program.

The publication of Maize Lethal Necrosis (MLN): A Technical Manual for Disease Management builds on the partnerships and expertise accrued over the course of this effort to provide a comprehensive “guide on best practices and protocols for sustainable management of the MLN.”

The manual is relevant to stakeholders in countries where MLN is already present, and also aims to offer technical tips to “‘high-risk’ countries globally for proactive implementation of practices that can possibly prevent the incursion and spread of the disease,” writes B.M. Prasanna, director of CIMMYT’s Global Maize Program and MAIZE, in the foreword.

“While intensive multi-disciplinary and multi-institutional efforts over the past decade have helped in containing the spread and impact of MLN in sub-Saharan Africa, we cannot afford to be complacent. We need to continue our efforts to safeguard crops like maize from devastating diseases and insect-pests, and to protect the food security and livelihoods of millions of smallholders,” says Prasanna, who is presently leading the OneCGIAR Plant Health Initiative Design Team.

Shifting to quality protein maize diet can provide cost-benefit for the poultry feed industry in Nepal

Written by Sarah McLaughlin on . Posted in News.

The demand for maize for poultry feed in Nepal has increased dramatically over the years. It constitutes about 60% of the poultry feed and is considered as the principal energy source used in poultry diets. About 70% of the total crop required by the feed industry is imported and such dependence on import could jeopardize its sustainability if any political, natural or health related crisis disrupts the supply chain. In addition to maize, the industry also imports synthetic amino acid to meet the requirements of poultry production since the regular maize grain used by the feed industry is deficient in essential amino acids that helps form proteins.

A recent assessment conducted by the International Maize and Wheat Improvement Center (CIMMYT) in Nepal highlights the prospects of using Quality Protein Maize (QPM) to mitigate protein deficiency found in regular maize. The authors suggest that the poultry feed industry can minimize the average feed cost by 1.5% by substituting regular maize with QPM. This would translate to a daily cost-saving of about US$26,000 for the industry. If this cost saving is shared across the value chain actors including farmers for domestic production of QPM and other biofortified maize vis a vis regular maize, then the dependency on imported maize can be significantly reduced.

The article published in the journal of International Food and Agribusiness Marketing, estimated least cost diet formulations for broilers and layers of different age groups, and the potential gains to be garnered by the maize seed and grain value chain actors in Nepal.

According to the study, a ton of feed produced using QPM reduces feed cost by at least US$7.1 for the broilers and by US$4.71 for layers. As a result, Nepal’s poultry feed industry can pay a maximum of 4% price premium with the cost saving for QPM.

“Considering the cost reduction potential QPM brings over regular maize, it can be a win-win situation for the poultry feed sector and maize value chain actors if they are strongly linked and operated in an integrated fashion,” explain the authors.

“By building awareness on the cost benefits, the feed industry exhibited a positive perception during the study period to use QPM for feed. Linking the seed companies with the feed mills is essential to leverage the benefits of the product.”

To promote and expand QPM production in Nepal, the authors also recommend provision of seed and fertilizer subsidies by the Government of Nepal to feed producers and cooperatives ensuring a continuous supply of the product to meet the demand.

The GoN has released two varieties of QPM maize but due to lack of effective seed production, extension and marketing programs, the potential of QPM maize remains unutilized. However, the authors firmly believe that appropriate policy focus on QPM seed production and grain marketing including premium price for QPM growers, can change the scenario where the demand for maize for feed industry can be gradually managed with domestic production.

Read the full study: Cost advantage of biofortified maize for the poultry feed industry and its implications for value chain actors in Nepal

Cover photo: Scientists have discovered that Quality Protein Maize (QPM) can mitigate the protein deficiency found in regular maize. (Credit: CIMMYT)

Cereals research for sustainable health and well-being

Written by Sarah McLaughlin on . Posted in Publications.

The current focus in nutritional circles on micronutrient malnutrition and unhealthy eating habits has raised questions about continuing to invest in research on energy-rich cereal crops and related farming systems.

In this new paper in the International Journal of Agricultural Sustainability, development scientists make the case that cereal foods are an important vehicle for enhanced nutrition – with additional improvement possible through plant breeding and interventions in processing, manufacturing and distribution. It also explains cereals are a rich source of both dietary fiber and a range of bioactive food components that are essential for good health and well-being.

The authors suggest a balanced, integrated research approach to support the sustainable production of both nutrient-rich crops and the basic cereals used in humanity’s most widely consumed and popular foods.

Read the full article: Continuing cereals research for sustainable health and well-being

Cover photo: Raw wheat grains in a wooden bowl and in a scoop, close-up. (Photo: Marco Verch/Flickr)

Decomposing maize yield gaps to better inform policy and public investments

Written by Sarah McLaughlin on . Posted in Features.

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)

CIMMYT-supported researcher earns doctorate for work on gender, maize value chains and food security

Written by Sarah McLaughlin on . Posted in News.

Gebre received his doctorate in Agricultural and Resource Economics from Kyushu University, Japan.

On September 25, with financial and academic support from the International Maize and Wheat Improvement Center (CIMMYT), Girma Gezimu Gebre upgraded his honorific from mister to doctor. Born in Dawuro zone, in southern Ethiopia, Gebre received his doctorate in Agricultural and Resource Economics from Kyushu University, Japan.

His dissertation—Gender Dimensions of the Maize Value Chain and Food Security: The Case of Dawuro Zone in Southern Ethiopia—was supported by CIMMYT through the Stress Tolerant Maize for Africa (STMA) project. Dil Rahut, global program manager of the socioeconomics and sustainable intensification programs at CIMMYT, served on his committee.

Asked about Gebre’s achievement, Rahut alluded to his hard work and dedication. “Desire is the starting point of all achievements while hard work and commitment are the end points of all the high achievements,” he said.

Gebre’s research explores how and to what degree gender plays a role in the adoption of improved maize varieties, maize productivity, maize market participation, and marketing channel choices, as well as food security among smallholder households across the maize value chain. Gebre already boasts published articles on the impact of gender on various dimensions of agriculture and agricultural development as well as various other topics— from the development of sustainable banana value chains in Ethiopia to barriers to farmers’ innovativeness.

At Kyushu University Gebre was awarded the 2020 Graduate School of Bioresources and Bioenvironmental Science “Outstanding Student Prize.” He was also awarded the 2020 Department of Agricultural and Resource Economics Prize in recognition of his excellent academic achievements and quality as a role model for other students.

Before pursuing a Ph.D., Gebre received a Master’s degree in Economics (Development Policy Analysis) from Mekelle University, Ethiopia, and a Master’s degree in Agricultural Production Chain Management—Horticulture Chain from Van Hall Larenstein University of Applied Sciences in the Netherlands. He has served as the coordinator of the postgraduate program in Agribusiness and Value Chain Management and as the head of the Department of Agricultural Economics at Aksum University, Ethiopia.

Highlighting innovation in Latin American maize agri-food systems

Written by Sarah McLaughlin on . Posted in Features.

CIMMYT colleagues pose for a photo at the 23rd Latin American Maize Reunion. (Photo: Carlos Alfonso Cortes Arredondo/CIMMYT.)

Latin America is the birthplace of maize and home to much of its genetic diversity. Maize is a main staple food across the continent and plays an important role in local culture and gastronomy. However, maize faces many challenges, from climate change related stresses such as drought and heat to emerging pests and diseases. Maize experts, as well as scientists from other key crops, from around the world came together to discuss these challenges and how to solve them at the 23rd Latin American Maize Reunion and 4th Seed Congress, held October 7-10 in Monteria, Colombia.

The reunion began with a welcome address from Luis Narro, a senior maize scientist with the International Maize and Wheat Improvement Center (CIMMYT). Narro thanked participants for coming from throughout the region and discussed the history of the event. “Why are we here today? Because maize is one of the most important crops of this century. This should be both a challenge and incentive for us to continue our work with maize, as it is a crop with huge demand,” he said.

In the inaugural session, Deyanira Barrero, general manager of the Colombian Agricultural Institute (ICA) and Jorge E. Bedoya, president of the Society of Colombian Farmers, highlighted the importance of seeds and strategies to ensure the quality and future of Colombia and Latin America’s agri-food systems.

The event was organized by the Colombian Corporation for Agricultural Research (Agrosavia), the Colombian Seed and Biotechnology Association (Acosemillas), the National Federation of Cereal and Legume Growers (Fenalce), the Latin American maize network, and the International Maize and Wheat Improvement Center (CIMMYT). Four CIMMYT scientists presented at the reunion, sharing their experience with and perspectives on agronomy, seed systems, native maize and strategies to increase resilience to climate change.

Nele Verhulst, senior scientist at CIMMYT, presented on the development of management practices for conservation agriculture as well as post-harvest technologies in Latin America, particularly Mexico and Central America. She emphasized the importance of crop management in maize so that improved seeds can reach their maximum potential in terms of yield and profitability. The seed systems lead for Africa and Latin America with CIMMYT’s Global Maize Program, Arturo Silva, shared his experience in these regions strengthening maize seed systems and working to accelerate variety replacement with newer, better seeds. Terry Molnar, maize breeder at the Center, studies native maize varieties to identify characteristics such as disease resistance that can be used to develop improved maize varieties for smallholder farmers. Kai Sonder, head of CIMMYT’s Geographic Information System (GIS) unit, presented on the potential impact of climate change on global and regional maize production.

The reunion closed with the award session for the winners of the MAIZE Youth Innovators Awards 2019 – Latin America. The awards, an initiative of the CGIAR Research Program on Maize (MAIZE), seek to recognize the contributions of young women and men who are implementing innovations in Latin American maize-based agri-food systems.

Winners of the MAIZE Youth Innovators Awards 2019 – Latin America pose for a photo with their awards. (Photo: Carlos Alfonso Cortes Arredondo/CIMMYT.)

Eduardo Cruz Rojo, Mexico, won in the “Farmer” category for his work using biological control agents to protect maize from fall armyworm. Carlos Barragán and José Esteban Sotelo Mariche, both from Mexico, won in the category of “Change Agent” for their work helping farmers increase their maize yields through inter-cropping and for helping farmers better commercialize their native maize, respectively. In the “Researcher” category, Yésica Chazarreta, from Argentina, won for her research on the effect of maize planting dates on grain filling and drying. Omar Garcilazo Rahme of Mexico was recognized for his work helping farmers grow high-value edible maize fungus in traditional maize production systems. Viviana López Ramírez of Colombia won for her work on bacteriosis in maize, and Lucio Reinoso of Argentina for his contribution to the development of a maize seeder that helps farmers adopt conservation agriculture techniques. In a video message, B.M. Prasanna, director of the CIMMYT global maize program and the CGIAR Research Program on Maize (MAIZE), congratulated the young winners and expressed his hopes that they would inspire other young people to get involved in maize based systems. This was the first time the awards were held in Latin America, following Asia in 2018 and Africa in spring of 2019.

Two additional awards were given at the close of the reunion, one to Alberto Chassiagne, maize seeds systems specialist for Latin America at CIMMYT, who received first place in the scientific poster competition at the reunion for his work “Proposed model to generate seed production technology for maize hybrids”. Another award went to Luis Narro for his contributions to maize in Latin America throughout his career.

The conference was followed by a field day held October 10 at the Agrosavia Turipaná Research Center in Cereté, Colombia. The field day began with a speech by Colombia’s Minister of Agriculture and Rural Development, Andrés Valencia, who discussed the importance of agriculture to his country’s economy as well as plans to increase maize production to decrease reliance on imports. This announcement follows the launch of Maize for Colombia, a strategic plan to help improve maize production in the country while increasing sustainability.

Space data applications for wheat and maize research

Written by Marcia MacNeil on . Posted in Features.

In 2017, a call for proposals from Copernicus Climate Change Service Sectoral Information Systems led the International Maize and Wheat Improvement Center (CIMMYT to collaborate with Wageningen University, the European Space Agency (ESA), and other research and meteorological organizations to develop practical applications in agricultural and food security for satellite-sourced weather data.

The project, which recently ended, opened the door to a wide variety of potential uses for this highly detailed data.

ESA collects extremely granular data on weather, churned out at an hourly rate. CIMMYT researchers, including Foresight Specialist Gideon Kruseman, reviewed this data stream, which generates 22 variables of daily and sub-daily weather data at a 30-kilometerlevel of accuracy, and evaluated how it could help generate agriculture-specific weather and climate data sets.

“For most people, the reaction would be, ‘What do we do with this?’ Kruseman said. “For us, this is a gold mine.”

For example, wind speed — an important variable collected by ESA satellites — is key for analyzing plant evaporation rates, and thus their drought tolerance. In addition, to date, information is available on ideal ago-climatic zones for various crop varieties, but there is no data on the actual weather conditions during a particular growing season for most sites.

By incorporating the information from the data sets into field trial data, CIMMYT researchers can specifically analyze maize and wheat cropping systems on a larger scale and create crop models with higher precision, meaning that much more accurate information can be generated from the trials of different crop varieties.

The currently available historic daily and sub-daily data, dating back to 1979, will allow CIMMYT and its partners to conduct “genotype by environment (GxE)” interaction analysis in much higher detail. For example, it will allow researchers to detect side effects related to droughts and heat waves and the tolerance of maize and wheat lines to those stresses. This will help breeders create specific crop varieties for farmers in environments where the impact of climate change is predicted to be more apparent in the near future.

“The data from this project has great potential fix this gap in information so that farmers can eventually receive more targeted assistance,” said Kruseman.

These ideas are just the beginning of the agricultural research and food security potential of the ESA data. For example, Kruseman would like to link the data to household surveys to review the relationship between the weather farmers experience and the farming decisions they make.

By the end of 2019, the data will live on an open access, user-friendly database. Eventually, space agency-sourced weather data from as far back as 1951 to as recent as five days ago will be available to researchers and weather enthusiasts alike.

Already CIMMYT scientists are using this data to understand the potential of a promising wheat line, for seasonal forecasting, to analyze gene-bank accessions and for a statistical analysis of maize trials, with many more high-impact applications expected in the future.