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Theme: Nutrition, health and food security

As staple foods, maize and wheat provide vital nutrients and health benefits, making up close to two-thirds of the world’s food energy intake, and contributing 55 to 70 percent of the total calories in the diets of people living in developing countries, according to the U.N. Food and Agriculture Organization. CIMMYT scientists tackle food insecurity through improved nutrient-rich, high-yielding varieties and sustainable agronomic practices, ensuring that those who most depend on agriculture have enough to make a living and feed their families. The U.N. projects that the global population will increase to more than 9 billion people by 2050, which means that the successes and failures of wheat and maize farmers will continue to have a crucial impact on food security. Findings by the Intergovernmental Panel on Climate Change, which show heat waves could occur more often and mean global surface temperatures could rise by up to 5 degrees Celsius throughout the century, indicate that increasing yield alone will be insufficient to meet future demand for food.

Achieving widespread food and nutritional security for the world’s poorest people is more complex than simply boosting production. Biofortification of maize and wheat helps increase the vitamins and minerals in these key crops. CIMMYT helps families grow and eat provitamin A enriched maize, zinc-enhanced maize and wheat varieties, and quality protein maize. CIMMYT also works on improving food health and safety, by reducing mycotoxin levels in the global food chain. Mycotoxins are produced by fungi that colonize in food crops, and cause health problems or even death in humans or animals. Worldwide, CIMMYT helps train food processors to reduce fungal contamination in maize, and promotes affordable technologies and training to detect mycotoxins and reduce exposure.

CIMMYT scientists join 60th All India Wheat and Barley Research Workers’ Meet

Gyanendra Pratap Singh (center), Director of ICAR-IIWBR, presents at the 60th All India Wheat and Barley Research Workers’ Meet. (Photo: Courtesy of ICAR-IIWBR)
Gyanendra Pratap Singh (center), Director of ICAR-IIWBR, presents at the 60th All India Wheat and Barley Research Workers’ Meet. (Photo: Courtesy of ICAR-IIWBR)

The International Maize and Wheat Improvement Center’s (CIMMYT) legacy of work with the Indian Centre for Agricultural Research (ICAR) has once again produced more successful collaborations this year. This solid partnership resulted in the release of new varieties poised to bring new, superior yielding, disease-resistant, high-quality wheat varieties suitable for different production environments to Indian farms.

The National Variety Release Committee announced the release of nine new varieties at the 60th All India Wheat and Barley Research Workers’ Virtual Meet on August 23–24, 2021, hosted by the Indian Institute of Wheat and Barley Research (IIWBR) of ICAR. Of the nine new varieties identified, five were selected by national partners from CIMMYT international trials and nurseries.

At the event, ICAR-IIWBR director Gyanendra Pratap (GP) Singh highlighted the impressive growth trajectory of India’s wheat production, estimated at 109.52 million tons of wheat harvested in 2021, a figure which was 86.53 million tons in 2015 and less than 60 million tons in 1991. Singh highlighted that this success is dependent upon the deployment of superior wheat varieties, bridging yield and information gaps, strengthened seed value chain, supportive government policies and, of course, farmer support to adopt new varieties and technologies.

The CIMMYT-derived varieties announced at the meeting include DBW296, DBW327, DBW332, HUW296 and JKW261. A few days earlier, variety PBW869 was released by the Punjab Agricultural University for growing in Punjab State under conservation agriculture practices.

“An innovative and powerful feature of ICAR-CIMMYT collaboration has been the introduction of long-term (10-month) rotational involvement of Indian young scientists in CIMMYTs breeding program at Mexico as well as in wheat blast screening in Bolivia,” said Arun Joshi, CIMMYT Regional Representative for Asia and Managing Director, Borlaug Institute for South Asia (BISA). “In this way, the breeding program of CIMMYT is an excellent example of joint breeding program with national institutions.”

At the 60th All India Wheat and Barley Research Workers’ Meet, participants highlighted new varieties, production growth and strengthened collaboration. (Photo: CIMMYT)
At the 60th All India Wheat and Barley Research Workers’ Meet, participants highlighted new varieties, production growth and strengthened collaboration. (Photo: CIMMYT)

Beyond expectations

In addition to these important new wheat varieties, some CIMMYT-derived wheat varieties that were released in recent years have now been deemed suitable for regions beyond their initial region of cultivation, showing wide adaptation and yield stability.

Wheat variety DBW222, released in 2020 for the northwestern plain zone, has now been deemed suitable for cultivation in the northeastern plain zone. Similarly, DBW187, which was initially released for the northeastern plain zone, and then for northwestern plain zone as well for early sowing, is now also extended for sowing in the central zone, together representing 25 million hectares of the 31 million hectares of wheat grown in India.

“Farmers prefer these types of varieties that give them flexibility during sowing time, and have high, stable yields, and disease resistance,” GP Singh said at the meeting.

A major achievement discussed at this year’s event was that three of the new varieties — DBW187, DBW303 and DBW222 — achieved record-high demand in Breeders Seed Indent, with first, second and seventh ranks, respectively. This is a reflection and indirect measure of popularity and demand for a variety. IIWBR’s innovative strategy to implement pre-release seed multiplication and create demand for seeds from new varieties has led to a faster turnover of improved varieties.

According to Ravi Singh, Distinguished Scientist and Head of Global Wheat Improvement at CIMMYT, the collaborators are “further expanding our partnership through the support from the Accelerating Genetic Gains in Maize and Wheat (AGG) and zinc-mainstreaming projects, to expand testing of larger sets of elite lines in targeted populations of environments of the four South Asian countries where various IIBWR-affiliated institutions shall expand testing in the 2021–22 crop season.” CIMMYT looks forward to continuing ongoing and new collaborations with the ICAR-IIWBR programs to deliver even faster genetic gain for yield and grain zinc levels in new varieties, he explained.

Speaking during the meeting Alison Bentley, Director of CIMMYT’s Global Wheat Program, highlighted the collaborative efforts underway as part of the AGG project to accelerate breeding progress. “Innovations and discoveries in breeding approaches are being rapidly made — with further investment needed — to quickly and equitably accumulate and deploy them to farmers,” she said.

The science behind the perfect bread and pasta flour

Have you ever considered that bread and pasta are made from different types of wheat? How about the fact that there are thousands of different wheat products consumed around the world, and each one has unique characteristics and processing requirements?

Scientists at the International Maize and Wheat Improvement Center (CIMMYT) understand that the quality of the final product, be it spaghetti, a loaf of sourdough bread or a tandoori naan, is highly dependent on the quality of the grain and the flour it becomes. Every year, CIMMYT analyzes thousands of wheat lines in detail at its Wheat Quality laboratory to determine the nutritional, processing and end-use quality of the grain. In this short video, CIMMYT’s Wheat Quality lab head Maria Itria Ibba explains exactly what they are looking for and how they find it.

First, CIMMYT scientists test the overall grain quality by analyzing grain weight, density, protein content, moisture content and hardness.

The grains are then milled into flour, which is again analyzed for moisture content, protein content, color and protein quality. Protein quality is especially important to determine the end-use for the type of flour, and CIMMYT conducts several tests to determine this characteristic. Bread and durum wheat flours specifically are analyzed for overall protein quality by checking SDS-sedimentation volume. Mixographs are used to assess the flour’s mixing and absorption characteristics, and alveographs are used to measure dough deformation properties.

At the end of the tests, bread wheat flours are transformed into leavened breads and scored based on the loaf’s volume and crumb quality. Durum wheat flour, used to make Italian-style pasta, is scored based on grain quality, flour yellowness, high protein content and protein quality.

CIMMYT’s work ensures that wheat-derived foods produced in developing countries are nutritious, affordable, and maximize profits for each actor in the value chain.

Cover photo: At CIMMYT’s Wheat Quality lab, researchers evaluate how different bread wheat varieties behave at the time of baking. (Photo: CIMMYT)

Can Uganda attain zero-hunger?

Uganda is one of the fastest economically growing nations in sub-Saharan Africa and is in the midst of socio-economic transition. Over the past two decades the country’s GDP has expanded, on average, by more than 6% each year, with per capita GDP reaching $710 in 2019. Researchers project that this will continue to rise at a rate of 5.6% each year for the next decade, reaching approximately $984 by the year 2031.

This growth is mirrored by a rising population and rapid urbanization within the country. In 2019, 24.4% of the Uganda’s 44.3 million citizens were living in urban areas. By 2030, population is projected to rise to 58-61 million, 31% of whom are expected to live in towns and cities.

“Changes in population, urbanization and GDP growth rate all affect the dietary intake pattern of a country,” says Khondoker Mottaleb, an economist at the International Maize and Wheat Improvement Center (CIMMYT). “Economic and demographic changes will have significant impacts on the agricultural sector, which will be challenged to produce and supply more and better food at affordable prices.”

This could leave Uganda in a precarious position.

In a new study, Mottaleb and a team of collaborators project Uganda’s future food demand, and the potential implications for achieving the United Nations Sustainable Development Goal of zero hunger by 2030.

The authors assess the future demand for major food items, using information from 8,424 households collected through three rounds of Uganda’s Living Standards Measurement Study — Integrated Surveys on Agriculture (LSMS-ISA). They focus on nationwide demand for traditional foods like matooke (cooking banana), cassava and sweet potato, as well as cereals like maize, wheat and rice — consumption of which has been rising alongside incomes and urbanization.

A conceptual framework of changing food demand in the Global South. (Graphic: CIMMYT)

The study findings confirm that with increases in income and demographic changes, the demand for these food items will increase drastically. In 2018, aggregate consumption was 3.3 million metric tons (MMT) of matooke, 4.7 MMT of cassava and sweet potato, 1.97 MMT of maize and coarse grains, and 0.94 MMT of wheat and rice. Using the Quadratic Almost Ideal Demand System (QUAIDS) estimation approach, the authors show that in 2030 demand could be as high as 8.1 MMT for matooke, 10.5 MMT for cassava and sweet potato, 9.5 MT for maize and coarse grains, and 4 MMT for wheat and rice.

Worryingly, Mottaleb and his team explain that while demand for all the items examined in the study increases, the overall yield growth rate for major crops is stagnating as a result of land degradation, climate extremes and rural out-migration. For example, the yield growth rate for matooke has reduced from +0.21% per year from 1962-1989 to -0.90% from 1990-2019.

As such, the authors call for increased investment in Uganda’s agricultural sector to enhance domestic production capacity, meet the growing demand for food outlined in the study, improve the livelihoods of resource-poor farmers, and eliminate hunger.

Read the full article, Projecting food demand in 2030: Can Uganda attain the zero hunger goal?

New CIMMYT maize hybrids available from Latin America breeding program

The International Maize and Wheat Improvement Center (CIMMYT) is offering a new set of elite, improved maize hybrids to partners for commercialization in the tropical lowlands of Latin America and similar agro-ecological zones. National agricultural research systems (NARS) and seed companies are invited to apply for licenses to commercialize these new hybrids, in order to bring the benefits of the improved seed to farming communities. In some countries, depending on the applicable regulatory framework for commercial maize seed, successful applicants may first need to sponsor the products through the national registration / release process prior to commercialization.

The deadline to submit applications to be considered during the first round of allocations is September 17, 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.

Product Profile Newly available CIMMYT hybrids Basic traits Nice-to-have / Emerging traits Trial summary
Latin America Product Profile 1A

(LatAM-PP1A)

CIM19LAPP1A-11 Early-maturing, white, high-yielding, drought tolerant, resistant to MLB, TSC and ear rots FSR, GLS Appendix 1
CIM19LAPP1A-13

 

CIMMYT Latin America Stage 4 and Stage 5 Trials: Results of the 2019 and 2020 Trials and Product Announcement

Appendix 1: CIMMYT maize hybrids available under LatAM-PP1A

Appendix 2: Information on Latin America trial locations and management

Principles and Procedures for Acquisition and use of CIMMYT maize hybrids and OPVs for commercialization

Applications must be accompanied by a proposed commercialization plan for each product being requested. Applications may be submitted online via the CIMMYT Maize Licensing Portal in English or Spanish.

APPLY FOR A LICENSE

Alternatively, applications may be submitted via email to GMP-CIMMYT@cgiar.org using the PDF forms available for download at the links below. Each applicant will need to complete one copy of Form A for their organization, then for each hybrid being requested a separate copy of Form B. (Please be sure to use these current versions of the application forms.)

FORM A – Application for CIMMYT Improved Maize Product Allocation (also available in Spanish: FORMATO A – Solicitud para asignaciĂłn de productos mejorados de maĂ­z del CIMMYT)

FORM B – Application for CIMMYT Improved Maize Product Allocation (also available in Spanish: FORMATO B – Solicitud para asignaciĂłn de productos mejorados de maĂ­z del CIMMYT)

 

Maize and wheat science to sustainably feed the world

As the world turns its attention to the policy-shaping discussions during this week’s Pre-Summit of the UN Food System Summit, the need for science and innovation to advance the transformation of food, land and water systems is clear.

The International Maize and Wheat Improvement Center (CIMMYT), with its 50-year track record of impact, success and high return on investment, is essential to these efforts.

Our new institutional brochure, Maize and wheat science to sustainably feed the world, links CIMMYT’s mission, vision and excellence in science to the urgent needs of a world where an estimated tenth of the global population — up to 811 million people — are undernourished.

CIMMYT is also a crucial wellspring of response capacity to CGIAR — the largest global, publicly funded research organization scaling solutions for food, land and water system challenges.

View and download the new CIMMYT Brochure.

View and download the new CIMMYT Brochure.Maize and wheat science to sustainably feed the world explains why we do what we do in light of these challenges.

  • CIMMYT leads maize and wheat research for food systems that deliver affordable, sufficient, and healthy diets produced within planetary boundaries.
  • Our research is focused on smallholder farmers in low- and middle-income countries and on improving the livelihoods of people who live on less than $2 a day.
  • CIMMYT science reaches them through innovation hubs, appropriate technologies, sustainable sourcing, and helps to address their needs and challenges through public policy guidance.

Applying high-quality science and strong partnerships, CIMMYT works for a world with healthier and more prosperous people, free from global food crises and with more resilient agri-food systems.

CRP Maize Annual Report 2020

The CGIAR Research Program on Maize (MAIZE) is proud to release its 2020 Annual Report.

Read the 2020 MAIZE Annual Report

Read the 2020 MAIZE Annual Report

In 2020, faced with the extraordinary challenges posed by the COVID-19 pandemic, MAIZE continued its mission to strengthen maize-based agri-food systems while improving the food security and livelihoods of the most vulnerable, especially resource-constrained smallholder farmers and their families.

MAIZE and its partners made great advances in the development of improved stress-tolerant maize varieties, the battle against fall armyworm (including the announcement of three first-generation fall armyworm-tolerant maize hybrids), testing and promoting of conservation agriculture and sustainable intensification, and in deepening our grasp of how to best empower women in the quest for gender equality and social inclusion in maize-based agri-food systems.

Led by the International Maize and Wheat Improvement Center (CIMMYT), with the International Institute of Tropical Agriculture (IITA) as its main CGIAR Consortium partner, MAIZE focuses on increasing maize production for the 900 million poor consumers for whom maize is a staple food in Africa, South Asia and Latin America.

CRP Wheat Annual Report 2020

We are proud to present highlighted impacts from WHEAT’s research in our 2020 Annual Report, showcasing the shared accomplishments through global partnerships for the eighth year of the program.

Read the WHEAT 2020 Annual Report

Read a PDF version of the WHEAT 2020 Annual Report 

Read the WHEAT 2020 Technical Annual Report

In 2020, the COVID-19 crisis devastated communities, economies, and livelihoods, especially of the world’s most vulnerable populations. At the same time, climate change continued to threaten wheat systems around the world. Under unprecedented challenges, WHEAT scientists and partners responded swiftly, generating new research evidence, forming new partnerships, and improving access to conservation agriculture and farm mechanization technologies.

This web-based report focuses on some of the major impacts the program has had on sustainable intensification, gender and social inclusion, and technological innovations for more productive wheat-based farming. Although they are reported for 2020, these impacts reflect years of dedicated science and strong collaborative relationships with partners.

We are deeply grateful for our partners in the science, research, policymaking, and funding communities who have allowed us to continue our work in the face of urgent and powerful challenges. We hope you enjoy this year’s Annual Report as we look back upon our outcomes and achievements in 2020 and set our targets for the future.

Waging war against the fall armyworm

The fall armyworm is an invasive pest that eats more than 80 different crops, but has a particular preference for maize.

It is native to the Americas. It was first reported in Africa in 2016, and quickly spread throughout the continent. It reached India in 2018. It has since been reported in many other countries across Asia and the Pacific, and it reached Australia in 2020.

Millions of families in these regions are highly dependent on maize for their income and their livelihoods. If the fall armyworm keeps spreading, it will have disastrous consequences for them.

Scientists at CIMMYT have been working hard to find solutions to help farmers fight fall armyworm. Researchers have developed manuals for farmers, with guidelines on how to manage this pest. They have also formed an international research consortium, where experts from diverse institutions are sharing knowledge and best practices. Consortium members share updates on progress in finding new ways to tackle this global challenge. Scientists are now working on developing new maize varieties that are resistant to fall armyworm.

The fall armyworm can’t be eradicated — it is here to stay. CIMMYT and its partners worldwide will continue to work on this complex challenge, so millions of smallholder farmers can protect their crops and feed their families.

For more information on the fall armyworm and CIMMYT’s work, please visit staging.cimmyt.org/fallarmyworm.

Annual Report 2020 launched

We began 2020 with grim news of the COVID-19 pandemic spreading from country to country, wreaking havoc on national economies, causing countless personal tragedies, and putting additional pressure on the livelihoods of the poor and hungry.

The global crisis exposed the enormous vulnerability of our food system.

If we have learned anything from the past year, it is that we need to urgently invest in science for renewed food systems that deliver affordable, sufficient, and healthy diets produced within planetary boundaries.

During this time, the dedication and resilience of the CIMMYT community allowed us to continue making important advances toward that vision.

We hope you enjoy reading our stories and will join us in actively working towards resilience, renewal and transition in our agri-food systems, to ensure that they are strong in the face of current and future crises.

Read the web version of the Annual Report 2020

Download the Annual Report 2020 in PDF format

Download the financial report 2020

Improve rural women’s financial access to help solve hunger

Women represent approximately 43 percent of the world’s agricultural labor. Despite making up less than half of the labor force, women account for 60 to 80 percent of food production in developing countries. Often, official statistics ignore unpaid work – whether in the field, at a home garden or preparing food in the household – thus misrepresenting women’s real contribution to agricultural work and production.

According to the United Nations Food and Agriculture Organization (FAO), if the world’s women farmers had the same access to resources and agricultural financing as men, 150 million people could be lifted out of poverty.

There is no way that we will be able to reach zero hunger if the public and private sectors do not get involved in gender-sensitive programming that addresses women’s access to finance and other resources and opportunities.

A new study supported by the Walmart Foundation, which has been working steadily on this issue, found that smallholder farmers in Mexico must overcome considerable obstacles to access financing – but the barriers to credit are significantly higher for women.

The International Maize and Wheat Improvement Center (CIMMYT) has conducted interventions in the field to support this finding. A multidisciplinary CIMMYT team offered advice on financial inclusion to a group of 1,425 farmers in southern Mexico from 2018 to 2020. The team found that while 331 men received credit, only six women of the same target group did.

Similarly, only three women were able to take out agricultural insurance and 29 opened a savings account after two years of intervention, compared to 110 and 171 men, respectively.

However, there is some hope: an increasing number of farmers, both women and men, is progressively acquiring the basic information and skills to formally request financial products.

CIMMYT obtained funding from the Walmart Foundation in 2018 to implement a project aimed at improving smallholder farmers’ access to markets through collective action, crop diversification, and enhanced access to finance in Mexico’s southern states of Campeche, Chiapas and Oaxaca. The project’s solid results in validation and adoption of sustainable and inclusive technologies were key factors enabling the continuation of activities through 2021.

According to VĂ­ctor LĂłpez, senior manager of partnerships for access to markets at CIMMYT, women farmers are less likely than men to default on loans but seldom have the necessary collateral to be considered as potential clients by standard financial institutions. Without this financial support, they are unable to obtain land, insurance or other critical agricultural inputs, trapping them in a cycle of poverty.

CIMMYT and its partners are working toward a more inclusive approach. With the support of the Walmart Foundation, CIMMYT is strengthening the capacity of farmers – particularly smallholders – and farmer organizations to mitigate production risks and incorporate market-sound considerations into their cropping plans.

These and similar rural development ventures with an inclusive business model perspective can help smallholder farmers, particularly women, combat hunger and food insecurity in Mexico and beyond.

The challenge is to bridge the financial services divide between agriculture and almost every other sector. As economic activity resumes and Mexico gradually recovers from the pandemic crisis, we have a big opportunity to create new credit products and financial services for women farmers that prioritize innovation and sustainable production over ownership rights.

This op-ed by CIMMYT Director General Martin Kropff was originally published in the Mexican Business Review.

New integrated methodology supports inclusive and resilient global food systems transformation

A multi-disciplinary team of agricultural researchers and development practitioners is proposing a new approach to tackle the shortcomings of global food production systems that degrade the environment, greatly contribute to climate change and fail to deliver healthy diets for a growing population.

The new methodology developed by the International Maize and Wheat Improvement Center (CIMMYT) in collaboration with the Alliance of Bioversity International and the International Center for Tropical Agriculture (CIAT) aims to transform national food systems by achieving consensus between multiple stakeholders and building on successful participatory agricultural research experiences.

According to a peer-reviewed paper published today in the journal PLOS ONE, the Integrated Agri-food System Initiative (IASI) “is designed to generate strategies, actions, and quantitative, [Sustainable Development Goals] SDGs-aligned targets that have [a significant] likelihood of supportive public and private investment”.

The IASI methodology is based on successful integrated development projects implemented by CIMMYT in Mexico and Colombia, the latter in partnership with the Alliance Bioversity-CIAT, which engaged multiple public, private and civil sector collaborators in local maize systems enhancement. These initiatives took advantage of sociopolitical “windows of opportunity” that helped build multiple stakeholder consensus around health, nutrition, food security and development aspirations in both countries.

“CIMMYT’s integrated development approach to maize systems transformation in Mexico and Colombia laid the foundations of the IASI methodology by overcoming government transitions, annual budget constraints and win-or-lose rivalry between stakeholders in favor of equity, profitability, resilience and sustainability,” said Bram Govaerts, chief operating officer and Integrated Development Program director at CIMMYT.

Ultimately, the IASI methodology offers public officials and development practitioners the possibility to transform food systems by scaling out innovative farming practices and technologies that lead to sustainably managed natural resources and improved nutrition and food security.

The main steps to implement the IASI methodology are:

  1. Diverse experts examine the current status and the business-as-usual scenario based on analysis of the socioeconomic, political, and sectoral context and model-based projections;
  2. Stakeholders determine a preferred future scenario based on assessment of national implications, and define drivers of change toward a desired scenario;
  3. Defined criteria are applied to stakeholder and expert inputs to validate drivers of change and to identify strategies and actions — for example, public policies, value chain and market interventions, and biotechnology applications — that can steer toward the preferred future scenario, which are then reviewed and prioritized by high-level decision makers;
  4. Stakeholders agree on measurable targets and tangible, time-bound actions toward the preferred future scenario;
  5. Stakeholders build shared commitment to a tactical implementation plan among traditional, non-traditional, and new partners;
  6. Ongoing stakeholder engagement is organized around an online dashboard that tracks actions and progress toward targets and supports course correction and coordinated investment.

Following these steps, the authors of the IASI methodology propose to build a “global food systems transformation network” to co-design and co-implement agricultural development projects that bring together multiple partners and donors for global agricultural systems transformation.

As the approach is refined and further applications are built, it is expected that this network will harness efforts to initiate a new field of research and global practice on “integrated methodologies for food system transformation and innovation” — analogous to the fields of business administration and organizational development.

IASI serves as the backbone of new CGIAR Regional Integrated Initiatives, which draw on capacities from regional international agricultural research centers and programs to deliver global agri-food system transformation.

Beneficial bioactives

Popular starchy staples maize and wheat provide more than simple dietary energy, but they are often found at the center of debates around the excessive consumption of carbohydrates.

While the nutrient contribution of whole grains is commonly emphasized in dietary guidelines, the milling and subsequent processing of cereal products tends to reduce or remove much of the important protein, fat, vitamin and mineral content, and in recent years there has been increasing concern about the ultra-processing of cereal-based food products containing noxious dietary components that exacerbate the occurrence of non-communicable diseases.

For these reasons — and because of the focus on energy content — maize and wheat are not often considered to be among the categories of “nutrient-rich” foods that can contribute to reducing micronutrient malnutrition. Consequently, it is unsurprising that a popular perception that cereals make a limited contribution to nutritious diets persists. This view has not been successfully challenged by a necessarily nuanced understanding of the complex role of cereals, and particularly the carbohydrate fractions, in human nutrition.

“In addition to the hidden micronutrients, there is sound scientific and popular awareness of the importance of some dietary components such as dietary fiber,” says Nigel Poole, Emeritus Professor of International Development at the School of Oriental and African Studies (SOAS).

“Though there is as yet imperfect scientific understanding and public awareness of the carbohydrates which make up dietary fiber,” he explains, “biomedical research continues to highlight the importance of carbohydrates in health and well-being. Moreover, there is a need for further knowledge on the nature and roles of many other bioactive food components that are not usually considered to be nutrients.”

These bioactives are substances such as carotenoids, flavonoids, and polyphenols. Most of the beneficial effects of the consumption of whole grain cereals on non-communicable diseases are currently attributed to the bioactive components of dietary fiber and the wide variety of phytochemicals.

A growing body of evidence from cereal chemistry, food science and metabolic studies shows that the bioactives in cereals are important for nutrition, health and well-being. In a new working paper authored in collaboration with the International Maize and Wheat Improvement Center (CIMMYT), Poole demonstrates that there is considerable potential for plant breeding strategies to improve these elements of grain composition. This could be done through exploiting natural variation, genetic and genomic selection methods, and mutagenesis and transgenesis in order to modify cell wall polysaccharides, and specifically to improve the starch composition and structure in breeding material through natural and induced mutations.

Rebalancing the agri-nutrition research agenda, Poole argues, is necessary in order to explore, explain and exploit the contribution to diets of hitherto less-researched nutrient-dense crops and other foods. Nevertheless, because of the quantities in which cereals are consumed, the nutritional contribution of cereals in addition to energy complements the consumption of micronutrient-rich fruits, vegetables, nuts and pulses in diverse diets.

To leverage the bioactive content of cereals — including dietary fiber — as well as the macro- and micronutrient content, a comprehensive approach to food and nutrition systems from farm to metabolism is needed, spanning research disciplines and food systems’ stakeholders throughout the agri-food industries, and embracing policy makers, nutrition advocacy, and consumer education and behavior change.

Read the full working paper: Food security, nutrition and health: Implications for maize and wheat research and development

Nigel Poole conducted research for this paper during a year-long Visiting Fellowship at CIMMYT, with support from scientists at the institution.

Buying into new seed

Mary Nzau enters a mock agrodealer shop set up on a field on the outskirts of Tala town in Machakos County, Kenya. On display are nine 2kg bags of hybrid maize seed. She picks one. By the look of it, her mind is made up. After a quick scan of the shelf, she has in her hand the variety that she has been purchasing for years.

Regina Mbaika Mutua is less lucky. The variety she always buys is not on display in the mock shop. As part of the experiment, the research team has removed from the shelf the variety she indicated she usually buys. The team’s goal is to observe what factors influence her seed purchase decision in the absence of the variety she was expecting to purchase.

“Although I did not find the variety I was looking for, I picked an alternative as I have seen it perform well on a neighboring farm,” Mutua says, adding that she will plant it this season alongside recycled (farm-saved) seed on her one-acre farm.

Michael Mutua passes up the popular variety he has been planting for the previous two years. He picks one that has been advertised extensively on local radio. “I have heard about it severally on radio. I would like to experiment with this new seed and see how it performs on my farm. Should I like the results, I will give it a chance in ensuing seasons,” he says.

Pieter Rutsaert explains the study setup at a mock agrodealer shop. (Photo: Joshua Masinde/CIMMYT)
Pieter Rutsaert explains the study setup at a mock agrodealer shop. (Photo: Joshua Masinde/CIMMYT)

The big adoption conundrum

The goal of the out-of-stock study is to improve an understanding of how farmers make their maize seed choices, says Pieter Rutsaert, Markets and Value Chain Specialist at the International Maize and Wheat Improvement Center (CIMMYT).

“We do this by inviting farmers to a mock agrodealer store that we set up in their villages and give them a small budget to purchase a bag of seed. However, not all farmers walk into the same store: some will find their preferred variety, others won’t. Some will have access to additional trait information or see some varieties with price promotions while others don’t.”

Rutsaert acknowledges that breeding programs and their partner seed companies have done a great job at giving farmers access to maize hybrids with priority traits such as drought tolerance and high yield. CIMMYT then works closely with local seed companies to get varieties into the hands of farmers. “We want to extend that support by providing insights to companies and public breeding programs on how to get new varieties more quickly into the hands of farmers,” he says.

Pauline Muindi (left), gender research associate with CIMMYT, acts as a mock agrodealer clerk and attends a farmer. (Photo: CIMMYT)
Pauline Muindi (left), gender research associate with CIMMYT, acts as a mock agrodealer clerk and attends a farmer. (Photo: CIMMYT)

The hybrid maize seed sector in Kenya is highly competitive. Amid intensifying competition, new varieties face a daunting task breaking into the market, independent of their quality. While farmers now have more options to pick from, a major challenge has been how to get them to adopt new varieties.

“Moving farmers from something they know to something they don’t is not easy. They tend to stick with what they know and have been growing for years,” Rutsaert says.

Pauline Muindi, gender research associate with CIMMYT, acted as the stand-in clerk at the mock store. She noticed that farmers tend to spend very little time in the shop when their preferred variety is available. However, this all changes in the out-of-stock situation, pushing farmers to step out of their comfort zone and explore new options.

The first step to overcoming this challenge is to entice maize farmers to try a new seed variety, even just once, Rutsaert observes. If it is a good variety, farmers will see that and then the market will work in its favor: farmers will come back to that variety in subsequent years and tell others about it.

“The good news is that many of the varieties we are currently seeing on the market have performed well — that’s why they’re popular. But there are newer varieties that are even better, especially in terms of attributes like drought tolerance. We would like to understand how farmers can be convinced to try out these newer varieties. Is it about the need for more awareness on varietal traits? Can we use price promotions? Or are there other factors?” he says.

A researcher interviews Mary Nzau (right), a farmer from Tala town in Machakos County, after her mock purchase. (Photo: Joshua Masinde/CIMMYT)
A researcher interviews Mary Nzau (right), a farmer from Tala town in Machakos County, after her mock purchase. (Photo: Joshua Masinde/CIMMYT)

Does seed price matter?

“With today’s climate uncertainty, it is better to stick to a variety that is adapted to such climate rather than banking on a variety one is oblivious of. The risk is not worth it,” Nzau says. She adds that she would rather buy a higher-priced seed packet she knows and trusts than a lower-priced one that she has not used in the past. Radio promotions of new or other varieties have limited sway over her decision to make the switch.

Faith Voni, another farmer, agrees. “It is better to purchase a higher-priced variety whose quality I can vouch for than risk purchasing a lower-priced one that I know little about. I do not wish to take such a risk.” Voni says she would also be more inclined to experiment with another variety that she had seen perform well on a neighbor’s farm.

Michael Mutua holds a different view. “If there is an option of an equally good but new variety that is lower-priced than the variety I prefer, my wallet decides,” he says.

Vivian Hoffmann, an economist at the International Food Policy Research Institute (IFPRI) and collaborator on the study, says price can be key for convincing consumers to try a new product. “Our previous research on maize flour choice found that a provisional 10 percent discount boosted sales tremendously,” Hoffmann says. “Of course, that only gets your foot in the door; after that, a new variety will need to win farmers over based on its merits.”

Hoffmann is interested in the extent to which drawing farmers’ attention to key varietal attributes influences their seed choice. “This information is generally already available on seed packets, but we live in a world of information overload. Promoting certain attributes through in-store signage is an approach that is widely used to help consumers make more healthier food choices. Doing the same for new seed varieties makes a lot of sense.”

Michael Mutua (left) responds to preliminary questions from one of the research team members before proceeding to make his seed selection at the mock agrodealer shop. (Photo: Joshua Masinde/CIMMYT)
Michael Mutua (left) responds to preliminary questions from one of the research team members before proceeding to make his seed selection at the mock agrodealer shop. (Photo: Joshua Masinde/CIMMYT)

The value of drought tolerance

Situated on Kenya’s eastern region, Machakos is characterized by persistent water stress. Climate change induced erratic rainfall has pushed traits that can tolerate the unfavorable weather conditions in the favorite’s corner. While other traits such as high yield and disease resistance are equally important, the seed, when planted, must first withstand the effects of droughts or water stress in some seasons and germinate. This is the most crucial step in the long journey to either a decent, bare minimum or no yield. A lot of farmers still plant recycled seed alongside hybrid varieties. But these are no match to water stress conditions, which decimate fields planted with farmer-saved seed.

“If a variety is not climate resilient, I will likely not harvest anything at all,” says Nzau. She has planted a drought-tolerant variety for ten years now. Prior to that, she had planted about three other varieties as well as recycled seed. “The only advantage with recycled seed is that given the right amount of rainfall, they mature fast — typically within two months. This provides my family with an opportunity to eat boiled or roast maize,” she notes.

However, varieties need to do more than just survive harsh weather conditions. Breeders face a daunting task of incorporating as many traits as possible to cater to the overarching and the specific interests of multiple farmers. As Murenga Mwimali, a maize breeder at the Kenya Agricultural and Livestock Research Organization (KALRO) and collaborator in this research says, innovations in breeding technologies are making breeding more efficient.

“It is better to have a diversity of product profiles as different market niches are captured within a particular agroecological zones. This is such that farmers may not just benefit from the minimum traits like drought tolerance, but also more specific traits they are looking for,” Mwimali says.

Smallholder farmers continue to play a central role in the seed development process. Capturing what happens at the point of purchase, for instance, at the agrodealer, and understanding how they purchase seed offers valuable insights on the traits that are deemed essential in the breeding process. This work contributes to CIMMYT’s focus on fast-tracking varietal turnover by turning the levers towards a demand-driven seed system.

Cover photo: Pauline Muindi, gender research associate with CIMMYT, at the mock agrodealer shop where she acted as a clerk. (Photo: CIMMYT)