Location: Asia

As a fast growing region with increasing challenges for smallholder farmers, Asia is a key target region for CIMMYT. CIMMYT’s work stretches from Central Asia to southern China and incorporates system-wide approaches to improve wheat and maize productivity and deliver quality seed to areas with high rates of child malnutrition. Activities involve national and regional local organizations to facilitate greater adoption of new technologies by farmers and benefit from close partnerships with farmer associations and agricultural extension agents.

CIMMYT leads innovation sprint to deliver results to farmers rapidly

Written by Sarah McLaughlin on December 5, 2022. Posted in Features.

Smallholder farmers, the backbone of food systems around the world, are already facing negative impacts because of climate change. Time to adapt climate mitigation strategies is not a luxury they have. With that in mind, the Agriculture Innovation Mission for Climate (AIM4C) facilitates innovation sprints designed to leverage existing development activities to create a series of innovations in an expedited timeframe.

At the UN COP27 in Egypt, AIM4C announced its newest round of innovation sprints, including one led by the International Center for Maize and Wheat Improvement (CIMMYT) to enable smallholder farmers to achieve efficient and effective nitrogen fertilizer management. From 2022 to 2025, this sprint will steer US $90 million towards empowering small-scale producers in Africa (Kenya, Malawi, Morocco, Tanzania, and Zimbabwe), Asia (China, India, Laos and Pakistan), and Latin America (Guatemala and Mexico).

“When we talk to farmers, they tell us they want validated farming practices tailored to their specific conditions to achieve greater productivity and increase their climate resilience,” said Sieg Snapp, CIMMYT Sustainable Agrifood Systems (SAS) program director who is coordinating the sprint. “This sprint will help deliver those things rapidly by focusing on bolstering organic carbon in soil and lowering nitrous oxide emissions.”

Nitrogen in China

Working with the Chinese Academy of Agricultural Sciences (CAAS), the sprint will facilitate the development of improved versions of green manure crops, which are grown specifically for building and maintaining soil fertility and structures which are incorporated back into the soil, either directly, or after removal and composting. Green manure can significantly reduce the use of nitrogen-based fertilizers, which prime climate culprits.

“There are already green manure systems in place in China,” said Weidong Cao from CAAS, “but our efforts will integrate all the work being done to establish a framework for developing new green manure crops aid in their deployment across China.”

Triple wins in Kenya

The Kenya Climate Smart Climate Project, active since 2017, is increasing agricultural productivity and building resilience to climate change risks in the targeted smallholder farming and pastoral communities. The innovation sprint will help rapidly achieve three wins in technology development and dissemination, cutting-edge innovations, and developing sets of management practices all designed to increase productive, adaption of climate smart tech and methods, and reduce greenhouse gas (GHG) emissions.

Agricultural innovations in Pakistan

The Agricultural Innovation Program (AIP), a multi-disciplinary and multi-sectoral project funded by USAID, led by CIMMYT, and active in Pakistan since 2015, fosters the emergence of a dynamic, responsive, and competitive system of science and innovation that is ‘owned’ by Pakistan and catalyzes equitable growth in agricultural production, productivity, and value.

“From its beginning, AIP has been dedicated to building partnerships with local organizations and, smallholder farmers throughout Pakistan, which is very much in line with the objectives and goal as envisioned by Pakistan Vision 2025 and the Vision for Agriculture 2030, as Pakistan is a priority country for CIMMYT. However, a concerted effort is required from various players representing public and private sectors,” said Thakur Prasad Tiwari, senior scientist at CIMMYT. “Using that existing framework to deliver rapid climate smart innovations, the innovation sprint is well-situated to react to the needs of Pakistani farmers. “

Policies and partnerships for innovations in soil fertility management in Nepal

The Nepal Seed and Fertilizer (NSAF) project, funded by USAID and implemented by CIMMYT, facilitates sustainable increases in Nepal’s national crop productivity, farmer income, and household-level food and nutrition security. NSAF promotes the use of improved seeds and integrated soil fertility management technologies along with effective extension, including the use of digital and information and communications technologies. The project facilitated the National Soil Science Research Centre (NSSRC) to develop new domain specific fertilizer recommendations for rice, maize, and wheat to replace the 40 years old blanket recommendations.

Under NSAFs leadership, the Ministry of Agriculture and Livestock Development (MOALD) launched Asia’s first digital soil map and has coordinated governmental efforts to collect and analyze soil data to update the soil map and provide soil health cards to Nepal’s farmers. The project provides training to over 2000 farmers per year to apply ISFM principles and provides evidence to the MOALD to initiate a balanced soil fertility management program in Nepal and to revise the national fertilizer subsidy policy to promote balanced fertilizers. The project will also build efficient soil fertility management systems that significantly increase crop productivity and the marketing and distribution of climate smart and alternative fertilizer products and application methods.

Public-private partnerships accelerate access to innovations in South Asia

The Cereal Systems Initiative for South Asia (CSISA), established in 2009, has reached more than 8 million farmers by conducting applied research and bridging public and private sector divides in the context of rural ‘innovation hubs’ in Bangladesh, India, and Nepal. CSISA’s work has enabled farmers to adopt resource-conserving and climate-resilient technologies and improve their access to market information and enterprise development.

“Farmers in South Asia have become familiar with the value addition that participating in applied research can bring to innovations in their production systems,” said Timothy Krupnik, CIMMYT systems agronomist and senior scientist. “Moreover, CSISA’s work to address gaps between national and extension policies and practices as they pertain to integrated soil fertility management in the context of intensive cropping systems in South Asia has helped to accelerate farmers’ access to productivity-enhancing innovations.”

CSISA also emphasizes support for women farmers by improving their access and exposure to improved technological innovations, knowledge, and entrepreneurial skills.

Sustainable agriculture in Zambia

The Sustainable Intensification of Smallholder Farming systems in Zambia (SIFAZ) is a research project jointly implemented by the UN Food and Agriculture Organization (FAO), Zambia’s Ministry of Agriculture and CIMMYT designed to facilitate scaling-up of sustainable and climate smart crop production and land management practices within the three agro-ecological zones of Zambia. “The Innovation Sprint can take advantage of existing SIFAZ partnerships, especially with Zambia’s Ministry of Agriculture,” said Christian Thierfelder, CIMMYT scientist. “Already having governmental buy-in will enable quick development and dissemination of new sustainable intensification practices to increase productivity and profitability, enhance human and social benefits while reducing negative impacts on the environment.”

Cover photo: Paul Musembi Katiku, a field worker based in Kiboko, Kenya, weighs maize cobs harvested from a low nitrogen trial. (Florence Sipalla/CIMMYT)

SP Poonia

Written by Sarah McLaughlin on November 29, 2022. Posted in Uncategorized.

SP Poonia is a Lead Researcher with CIMMYT’s Global Wheat Program and Sustainable Agrifood Systems (SAS) program in India.

Through his work, he aims to feed nutritionally rich and safe food globally through best collective efforts for enhancing farming systems’ productivity with efficient resource use and the adoption of conservation agriculture-based preferred technologies at grassroot level.

CIMMYT and Join Hope sign partnership agreement

Written by Sarah McLaughlin on November 29, 2022. Posted in News.

CIMMYT and Join Hope sign a partnership agreement on November 14. (Photo: CIMMYT)

The International Maize and Wheat Improvement Center (CIMMYT) and Join Hope have cemented their partnership at a research cooperation agreement signing ceremony on November 14.

Join Hope produce seed products including maize, wheat, cotton, and soybean, as well as fertilizers, agricultural films and other products. The company will be providing some funding for five years and will receive access to CIMMYT’s international wheat nurseries and some maize inbred lines, in addition to training and other services. The funding will strengthen CIMMYT’s research efforts in China and create opportunities for training in Pakistan.

“CIMMYT and China have developed a win-win partnership that was established back in 1974,” said CIMMYT Director General Bram Govaerts. “Over 48 years, we have collaborated and advanced research for agricultural development in the areas of breeding, genomic research, and sustainable farming systems.”

Through this partnership, as much as 10.7 million tons of grain has been added to China’s wheat output. More than 26,000 CIMMYT wheat accessions were introduced and stored in China, and more than 300 wheat cultivars derived from CIMMYT germplasm have been released in China and are currently grown on nearly 10 percent of the Chinese wheat production area.

“The cooperation agreement that we sign today is another step in the right direction,” continued Govaerts. “It will bring us closer to the Chinese farmer and grain consumers who we all aim to serve.”

Young CIMMYT scientist receives 2022 Japan Award for global research to combat wheat aphids

Written by Mike Listman on November 24, 2022. Posted in News.

“To meet expected wheat demand for 2050, production will need to double, which means increasing harvests nearly 70 kilograms per hectare each year,” said Leonardo Crespo-Herrera, CIMMYT wheat scientist and 2022 Japan Award recipient. “Breeding will be a major contributor, but better agronomic practices and policies will also be critical.” (Photo: CIMMYT)

International science to save wheat — a crucial food grain for 2.5 billion of the world’s poor — from a rising tide of insect pests known as aphids was lauded on November 22 with the 2022 Japan International Award for Young Agricultural Researchers (the Japan Award).

The 2022 Japan Award recognized novel breeding approaches to identify and select for genetic resistance in wheat to two species of aphids that cause wheat grain losses reaching 20% and whose rapid spread is propelled by rising temperatures.

Aphid resistant wheat can contribute to more sustainable food production, protecting farmers’ harvests and profits, while reducing the need to use costly and harmful insecticides, said Leonardo Crespo-Herrera, bread wheat improvement specialist for the International Maize and Wheat Improvement Center (CIMMYT) and one of the three 2022 Japan Award recipients.

“In addition to genetic yield potential, CIMMYT wheat breeding focuses on yield stability, disease resistance, and nutritional and end-use quality,” Crespo-Herrera explained. “Adding another target trait — aphid resistance — makes wheat breeding much more challenging.”

Efficient and effective field testing to confirm the genetics

Crespo-Herrera and his CIMMYT colleagues managed to identify and characterize genome segments responsible for aphid resistance in wheat and its near relatives, as well as running innovative field tests for a set of elite wheat breeding lines that were predicted to carry that resistance.

“With the aphid species called the greenbug, its feeding causes yellowing and necrotic spots on wheat, so we could actually measure and score wheat plants in plots that we deliberately infested with the aphids, keeping the resistant lines and throwing out the susceptible ones,” said Crespo-Herrera.

For the other species, the bird cherry-oat aphid, the only visible feeding damage is when the plants become stunted and die, so Crespo-Herrera and colleagues instead measured biomass loss and reduced growth in 1,000 artificially infested wheat lines, identifying a number of lines that had low scores for those measurements. Given that the lines tested came from a set that had already shown resistance to the greenbug, some of the successful lines feature resistance to both aphid species.

For the bird cherry-oat aphid, in two years of additional field tests, Crespo-Herrera and his team found that aphid populations were lower in plots sown with resistant wheat lines. “The experiments included remote sensing measurements that identified certain spectral signatures correlated with aphid populations; this may help us to assess resistance in future field trials.”

The researchers also found that a cutting-edge approach known as “genomic prediction” provided good estimations regarding promising, aphid-resistant wheat breeding lines.

Motivating young researchers in research and development

Established in 2007, the Japan Award is an annual prize organized by the Agriculture, Forestry and Fisheries Research Council (AFFRC) of Japan’s Ministry of Agriculture, Forestry and Fisheries (MAFF) and supported by the Japan International Research Center for Agricultural Sciences (JIRCAS). Awardees receive a $5,000 cash prize.

In an excerpt of an official note regarding Crespo-Herrera’s research, those agencies said “…This study has been highly evaluated for developing (wheat) lines that have been distributed worldwide for use in wheat breeding, and the methods of this study have been applied to develop varieties with resistance mechanisms against various kinds of insects, not only aphids.”

Crespo-Herrera thanked JIRCAS and MAFF for the award. “I feel honored to have been selected.”

Feature: Reciprocal cooperation between China, int’l agricultural research agency safeguards food security

Written by Sarah McLaughlin on November 23, 2022. Posted in In the media.

Collaboration between China and the International Maize and Wheat Improvement Center (CIMMYT) is an example of a mutually beneficial partnership working to safeguard global food security.

Wheat pathologist and geneticist Zhognhu He explained the spread of plant diseases such as wheat scab, which is spreading due to factors such as climate change and could threaten grain security and food safety. His work in wheat disease resistance using the vast germplasm resources in China is helping farmers worldwide.

China has also provided thousands of wheat germplasm resources to CIMMYT’s genebank in Mexico, contributing towards the development of new varieties.

Read the original article: Feature: Reciprocal cooperation between China, int’l agricultural research agency safeguards food security

Lalit Sharma

Written by Sarah McLaughlin on November 21, 2022. Posted in Uncategorized.

Lalit Sharma is a seed technologist working for the Borlaug Institute for South Asia (BISA) and CIMMYT’s Sustainable Agrifood Systems (SAS) program. He works in the field of seed production, field quality inspection, and seed production research.

Research shows impact of root and crown rot in wheat

Written by Sarah McLaughlin on November 18, 2022. Posted in Publications.

Kazakhstan is the ninth largest country in the world and the fourteenth largest producer of wheat; in 2021 alone, the country produced 14.3 million tons (t) of wheat on 12.1 million hectares (ha). Despite this impressive figure, wheat yield in the country falls below average at 1172.5 t/ha compared to 3474.4 t/ha globally.

Research into wheat diseases in Kazakhstan has primarily revolved around airborne fungal foliar diseases, such as stem rust, leaf rust and stripe rust, which can be devastating for farmers and their crops. However, the effects of fungi relating to wheat root and crown root were yet to be examined – these diseases affect yields, stands and grain quality due to infections that cause damping-off, blight, necrosis, and dry rotting.

Using plant samples taken during the 2019 growing season, scientists from the International Maize and Wheat Improvement Center (CIMMYT) conducted a quantitative survey to determine the distribution of this fungi. Using morphological and molecular tools on 1,221 samples from 65 sites across the central, eastern, and southeastern region, scientists found that Bipolaris sorokiniana and Fusarium acuminatum were the most predominant fungal species isolated.

In total, 74 isolates from 16 species were tested, revealing that F. culmorum and F. pseudograminearum, B. sorokinaiana, Fusarium sp., R. solani, F. redolens, C. spicifera, C. inaequalis, and N. orvzae were virulent fungi.

Results show the diverse spectrum of pathogenic fungal species linked to wheat crown and root rot in Kazakhstan and is highly likely to be the first report from the country on the presence of F. seudograminearum, Fusarium sp., C. spicifera, and C. inaequalis.

With this new data, scientists can develop mitigations to prevent crop loss and improve wheat yield across Kazakhstan.

Read the study: Fungal Pathogens Associated with Crown and Root Rot of Wheat in Central, Eastern, and Southeastern Kazakhstan

Cover photo: The scientists from Turkey researching root and crown rot in Kazakhstani wheat: Abdelfattah A. Dababat (CIMMYT), Mustafa Imren (Bolu Abant Izzet Baysal University), Göksel Özer (Bolu Abant Izzet Baysal University) and Rauan Zhapayev. (Photo: Abdelfattah A. Dababat/CIMMYT)

Plant health data is critical for effective policy change

Written by Sarah McLaughlin on November 10, 2022. Posted in News.

Learning to evaluate wheat stem rust, a significant cause of crop loss, in the field in Kenya. (Photo: Petr Kosina/CIMMYT)

With rising demand for food, it is more critical than ever to address the challenge of crop losses due to pests and diseases. Current limited understanding of the extent of the problem prevents the advancement and implementation of plant health solutions. Global scientific collaboration is integral to ensure policy recommendations are well-informed by robust evidence and therefore more likely to succeed in the long-term.

The issue of global burden of crop loss closely correlates with the objectives of the One CGIAR Plant Health Initiative, which aims to prevent and manage major pest and disease outbreaks through the development and deployment of inclusive innovations and by building effective national, regional, and global networks. The Initiative, which is being led by the International Maize and Wheat Improvement Center (CIMMYT), will support low- and middle-income countries in Africa, Asia, and Latin America to reduce crop losses due to pests and diseases, and improve food security and livelihoods for smallholder farmers.

Data-driven approaches

The Global Burden of Crop Loss project, which is run by the Centre for Agriculture and Bioscience International (CABI), is working to ensure that there is accurate data on the challenges posed by plant pests and diseases. Questions to understand include where crop losses are the highest, the causes behind these losses, and how best these they can be addressed.

Cambria Finegold, Global Director, Digital Development, CABI said, “If you are not measuring crop loss well, then you don’t know if the extraordinary $25.8 billion spent annually on agricultural research and development is working, or if we are spending it in the right ways.”

Research by the Plant Health Initiative will play a significant role in collecting and disseminating data on some major pests and diseases, which can guide scientists on which areas to prioritize, thereby contributing to an impactful research agenda.

Once data is gathered, CABI aims to inform decision-making for actors at the top levels of the plant health system and ensure that appropriate action is taken to safeguard global food security with the limited resources available.

Integrated pest management strategies have been key in dealing with fall armyworm in Africa and Asia. (Photo: B.M. Prasanna/CIMMYT)

Establishing global networks

The value of a data-driven approach was emphasized at a session organized by the Global Burden of Crop Loss on October 14 exploring evidence-based systems to tackle food security. This session was a side event of the UN Food and Agriculture Organization (FAO) Science and Innovation Forum, which this year focused on highlighting the centrality of science, technology and innovations for agrifood systems transformation.

Prasanna Boddupalli, One CGIAR Plant Health Initiative Lead and Director of CIMMYT’s Global Maize Program, explained how the Initiative will bridge knowledge gaps, build risk assessment and rapid response capability, improve integrated pest and disease management, design and deploy tools to prevent contamination of food chains, and promote gender-equitable and socially inclusive innovations for plant health.

With six devastating plant epidemics in Africa alone during the last decade and an increased number of climate change-induced droughts and floods, Boddupalli proposed a revitalized strategy using the objectives of the Plant Health Initiative.

Built on a foundation of partnerships, there are more than 80 national, regional, and international organizations involved in the Initiative across 40 countries in the Global South, in addition to the CGIAR research centers. Through this rapidly expanding collaboration, the focus will be on establishing regional diagnostic and surveillance networks and implementing Integrated Pest Management (IPM) and integrated mycotoxin management.

To address the need for evidence-based policy recommendations, Boddupalli explained the purpose of the Plant Health Innovation Platforms in Africa, Asia and Latin America, leveraging the partners’ research sites. Combining innovations from the CGIAR system, national partners and the private sector, these platforms will enable the co-creation and validation of pest and disease management packages, with the aim of significantly improving adoption of effective and affordable plant health innovations by smallholder farmers.

Removing the barriers for data sharing

The Plant Health Initiative team has recently collected and collated information from national partners and the private sector on actions needed to remove constraints on sharing pest and disease surveillance data. Potential solutions include improved training of national partners, joint research projects, pre-defined processes for data sharing, and focusing on work that meets national and regional priorities.

These approaches will inform the sharing of data collected through the Initiative. For example, researchers are gathering surveillance data on 15 crop pests affecting seven different plants in 25 countries, with the expectation of collecting more than 44,000 samples from 2,100 sites in 2022 alone, with plans for sharing the results with partner institutions.

Boddupalli also emphasized the importance of ramping up remote sensing and drone usage, wherever feasible, for diagnostics and surveillance. However, the current gaps in accessing data and computing facilities in the Global South need to be addressed to make this a reality.

“The OneCGIAR Plant Health Initiative and the Global Burden of Crop Loss project have excellent complementarity,” said Boddupalli. Both have an opportunity to generate and share robust data on crop loss due to existing and emerging crop pests and diseases and use this data to drive effective policy change on plant health management.”

About the Global Burden of Crop Loss:

The Global Burden of Crop Loss initiative is modelled after the Global Burden of Disease initiative in human health, which has transformed health policy and research, over the last 25 years through better use of data.

The initiative aims to have a similar impact in agriculture, providing evidence to enable the global plant health community to generate actionable information and lead to a dramatic reduction in crop loss, resulting in increased food security and trade.

About the Centre for Agriculture and Bioscience International (CABI):

CABI is an international, inter-governmental, not-for-profit organization that improves people’s lives worldwide by providing information and applying scientific expertise to solve problems in agriculture and the environment.

Their approach involves putting information, skills and tools into people’s hands. CABI’s 49 Member Countries guide and influence their work which is delivered by scientific staff based in their global network of centers.

‘Perennial’ rice saves time and money, but comes with risks

Written by Sarah McLaughlin on November 8, 2022. Posted in In the media.

The largest real-world test of grains that grow year after year without replanting is showing promise for saving money, helping the environment, and reducing labor in China.

Initial trials with perennial rice as part of the Sustainable Agrifood Systems (SAS) program by the International Maize and Wheat Improvement Center (CIMMYT) suggest the crop could be a game changer for agriculture and food security.

The next phase of the research will determine whether farmers wish to adopt Perennial Rice 23 (PR23), which has been developed by breeding an Asian variety of rice with a wild, perennial relative from Nigeria.

Read the original article: ‘Perennial’ rice saves time and money, but comes with risks

Combatting soil-borne pathogens and nematodes vital for food security

Written by Sarah McLaughlin on November 7, 2022. Posted in News.

Mustafa Alisarli, Bolu Abant Izzet Baysal University rector, is awarded for hosting this symposium by the representative of the Turkish Ministry of Agriculture and Forestry, General Directorate of Agricultural Research and Policies (GDAR), Dr Suat Kaymak.

The International Maize and Wheat Improvement Center (CIMMYT) coordinated the VIII International Cereal Nematode Symposium between September 26-29, in collaboration with the Turkish Ministry of Agriculture and Forestry, the General Directorate of Agricultural Research and Policies and Bolu Abant Izzet Baysal University.

As many as 828 million people struggle with hunger due to food shortages worldwide, while 345 million are facing acute food insecurity – a crisis underpinning discussions at this symposium in Turkey focused on controlling nematodes and soil-borne pathogens causing reduced wheat yields in semi-arid regions.

A major staple, healthy wheat crops are vital for food security because the grain provides about a fifth of calories and proteins in the human diet worldwide.

Seeking resources to feed a rapidly increasing world population is a key part of tackling global hunger, said Mustafa Alisarli, the rector of Turkey’s Bolu Abant Izzet Baysal University in his address to the 150 delegates attending the VIII International Cereal Nematode Symposium in the country’s province of Bolu.

Suat Kaymak, Head of the Plant Protection Department, on behalf of the director general of the General Directorate of Agricultural Research and Policies (GDAR), delivered an opening speech, emphasizing the urgent need to support the CIMMYT Soil-borne Pathogens (SBP) research. He stated that the SBP plays a crucial role in reducing the negative impact of nematodes and pathogens on wheat yield and ultimately improves food security. Therefore, the GDAR is supporting the SBP program by building a central soil-borne pathogens headquarters and a genebank in Ankara.

Discussions during the five-day conference were focused on strategies to improve resilience to the Cereal Cyst Nematodes (Heterodera spp.) and Root Lesion Nematodes (Pratylenchus spp.), which cause root-health degradation, and reduce moisture uptake needed for proper development of wheat.

Richard Smiley, a professor emeritus at Oregon State University, summarized his research on nematode diseases. He has studied nematodes and pathogenic fungi that invade wheat and barley roots in the Pacific Northwest of the United States for 40 years. “The grain yield gap – actual versus potential yield – in semiarid rainfed agriculture cannot be significantly reduced until water and nutrient uptake constraints caused by nematodes and Fusarium crown rot are overcome,” he said.

Experts also assessed patterns of global distribution, exchanging ideas on ways to boost international collaboration on research to curtail economic losses related to nematode and pathogen infestations.

A special session on soil-borne plant pathogenic fungi drew attention to the broad spectrum of diseases causing root rot, stem rot, crown rot and vascular wilts of wheat.

Soil-borne fungal and nematode parasites co-exist in the same ecological niche in cereal-crop field ecosystems, simultaneously attacking root systems and plant crowns thereby reducing the uptake of nutrients, especially under conditions of soil moisture stress.

Limited genetic and chemical control options exist to curtail the damage and spread of these soil-borne problems which is a challenge exacerbated by both synergistic and antagonistic interactions between nematodes and fungi.

Nematodes, by direct alteration of plant cells and consequent biochemical changes, can predispose wheat to invasion by soil borne pathogens. Some root rotting fungi can increase damage due to nematode parasites.

Integrated managementFor a holistic approach to addressing the challenge, the entire biotic community in the soil must be considered, said Hans Braun, former director of the Global Wheat Program at CIMMYT.

Braun presented efficient cereal breeding as a method for better soil-borne pathogen management. His insights highlighted the complexity of root-health problems across the region, throughout Central Asia, West Asia and North Africa (CWANA).

Richard A. Sikora, Professor emeritus and former Chairman of the Institute of Plant Protection at the University of Bonn, stated that the broad spectrum of nematode and pathogen species causing root-health problems in CWANA requires site-specific approaches for effective crop health management. Sikora added that no single technology will solve the complex root-health problems affecting wheat in the semi-arid regions. To solve all nematode and pathogen problems, all components of integrated management will be needed to improve wheat yields in the climate stressed semi-arid regions of CWANA.

Building on this theme, Timothy Paulitz, research plant pathologist at the United States Department of Agriculture Agricultural Research Service (USDA-ARS), presented on the relationship between soil biodiversity and wheat health and attempts to identify the bacterial and fungal drivers of wheat yield loss. Paulitz, who has researched soil-borne pathogens of wheat for more than 20 years stated that, “We need to understand how the complex soil biotic ecosystem impacts pathogens, nutrient uptake and efficiency and tolerance to abiotic stresses.”

Julie Nicol, former soil-borne pathologist at CIMMYT, who now coordinates the Germplasm Exchange (CAIGE) project between CIMMYT and the International Center for Agricultural Research in the Dry Areas (ICARDA) at the University of Sydney’s Plant Breeding Institute, pointed out the power of collaboration and interdisciplinary expertise in both breeding and plant pathology. The CAIGE project clearly demonstrates how valuable sources of multiple soil-borne pathogen resistance in high-yielding adapted wheat backgrounds have been identified by the CIMMYT Turkey program, she said. Validated by Australian pathologists, related information is stored in a database and is available for use by Australian and international breeding communities.

Economic losses

Root-rotting fungi and cereal nematodes are particularly problematic in rainfed systems where post-anthesis drought stress is common. Other disruptive diseases in the same family include dryland crown and the foot rot complex, which are caused mainly by the pathogens Fusarium culmorum and F. pseudograminearum.

The root lesion nematode Pratylenchus thornei can cause yield losses in wheat from 38 to 85 percent in Australia and from 12 to 37 percent in Mexico. In southern Australia, grain losses caused by Pratylenchus neglectus ranged from 16 to 23 percent and from 56 to 74 percent in some areas.

The cereal cyst nematodes (Heterodera spp.) with serious economic consequences for wheat include Heterodera avenae, H. filipjevi and H. latipons. Yield losses due to H. avenae range from 15 to 20 percent in Pakistan, 40 to 92 percent in Saudi Arabia, and 23 to 50 percent in Australia.

In Turkey, Heterodera filipjevi has caused up to 50 percent crop losses in the Central Anatolia Plateau and Heterodera avenae has caused up to 24 percent crop losses in the Eastern Mediterranean.

The genus Fusarium which includes more than a hundred species, is a globally recognized plant pathogenic fungal complex that causes significant damage to wheat on a global scale.

In wheat, Fusarium spp. cause crown-, foot-, and root- rot as well as head blight. Yield losses from Fusarium crown-rot have been as high as 35 percent in the Pacific Northwest of America and 25 to 58 percent in Australia, adding up losses annually of $13 million and $400 million respectively, due to reduced grain yield and quality. The true extent of damage in CWANA needs to be determined.

Abdelfattah Dababat, CIMMYT’s Turkey representative and leader of the soil-borne pathogens research team said, “There are examples internationally, where plant pathologists, plant breeders and agronomists have worked collaboratively and successfully developed control strategies to limit the impact of soil borne pathogens on wheat.” He mentioned the example of the development and widespread deployment of cereal cyst nematode resistant cereals in Australia that has led to innovative approaches and long-term control of this devastating pathogen.

Dababat, who coordinated the symposium for CIMMYT, explained that, “Through this symposium, scientists had the opportunity to present their research results and to develop collaborations to facilitate the development of on-farm strategies for control of these intractable soil borne pathogens in their countries.”

Paulitz stated further that soil-borne diseases have world-wide impacts even in higher input wheat systems of the United States. “The germplasm provided by CIMMYT and other international collaborators is critical for breeding programs in the Pacific Northwest, as these diseases cannot be managed by chemical or cultural techniques,” he added.

Closing ceremony of the International Cereal Nematode Symposium. From left to right; Hans Braun, Brigitte Slaats, Richard Sikora, Grant Hollaway, Mesut Keser, Zahra Maafi, Richard Smiley, Mustafa Imren, Fatih Ozdemir, Amer Dababat. (Photo: CIMMYT)

Road ahead

Delegates gained a greater understanding of the scale of distribution of cereal cyst nematodes and soil borne pathogens in wheat production systems throughout West Asia, North Africa, parts of Central Asia, Northern India, and China.

After more than 20 years of study, researchers have recognized the benefits of planting wheat varieties that are more resistant. This means placing major emphasis on host resistance through validation and integration of resistant sources using traditional and molecular methods by incorporating them into wheat germplasm for global wheat production systems, particularly those dependent on rainfed or supplementary irrigation systems.

Sikora stated that more has to be done to improve Integrated Pest Management (IPM), taking into consideration all tools wherever resistant is not available. Crop rotations for example have shown some promise in helping to mitigate the spread and impact of these diseases.

“In order to develop new disease-resistant products featuring resilience to changing environmental stress factors and higher nutritional values, modern biotechnology interventions have also been explored,” Alisarli said.

Brigitte Slaats and Matthias Gaberthueel, who represent Swiss agrichemicals and seeds group Syngenta, introduced TYMIRIUM® technology, a new solution for nematode and crown rot management in cereals. “Syngenta is committed to developing novel seed-applied solutions to effectively control early soil borne diseases and pests,” Slaats said.

It was widely recognized at the event that providing training for scientists from the Global North and South is critical. Turkey, Austria, China, Morocco, and India have all hosted workshops, which were effective in identifying the global status of the problem of cereal nematodes and forming networks and partnerships to continue working on these challenges.

Bringing voluntary carbon offset markets to smallholder Indian farmers

Written by Sarah McLaughlin on November 4, 2022. Posted in Features.

To mitigate their amount of greenhouse gas (GHG) emissions, companies and individuals have access to international voluntary carbon offset markets, which are trading systems that financially compensate credit producer participants for offsetting the amount of carbon emitted. An innovative new initiative from the International Maize and Wheat Improvement Center (CIMMYT) and the Indian Council of Agricultural Research Institute (ICAR) is working to establish carbon markets among smallholder farmers in India, with the goal of reducing GHG emissions, encouraging climate smart farming practices through financial incentives.

In India, agriculture is one of the biggest sources of GHG emissions – between 14 and 21 percent of all GHGs are attributable to agricultural activities, which derive from the use of farm machinery, rice cultivation, fertilizer use, and other activities. Emissions from agriculture are increasing drastically due to synthetic fertilizers and enteric fermentation from livestock.

Within CIMMYT’s farmer-centered approach, participants in voluntary carbon markets will improve their own financial viability in two ways – through adopting sustainable practices and through receipt of payments from carbon markets. The approach will also employ regenerative interventions such as direct dry seeding of rice, minimal tillage, crop diversification, use of biofertilizers, and perennial cropping all while contributing to an overall reduction in GHG emissions.

“Working with ICAR to engage smallholder farmers with high-quality carbon offsets allows the farmers to offset their unavoidable emissions,” said Vijesh Krishna, senior CIMMYT scientist. “This program promotes inclusiveness because this newly created income is distributed among participating farmers, thereby improving their income.”

These regenerative agriculture interventions will increase and retain soil’s carbon content, water permeability and retention, resulting in crops’ ability to withstand drought, flooding, and temperature stresses. Only a small percentage of farmers currently implement these methods in India.

CIMMYT and ICAR researchers estimate that widespread adoption of these practices, combined with upgraded technologies, has the potential to return the carbon levels in agricultural soils from an average of 0.5 percent back to 1.5 percent. At present, the agricultural soils of India are poor with respect to soil organic carbon.

Carbon markets for smallholders

About 2,000 small holder farmers of Punjab, Haryana, and parts of Maharashtra, all in India, are enrolled in the project through individual partnership agreements. Once farmers implement regenerative agricultural methods, they will be eligible to receive payments for carbon credits generated for 10 to 20 years, conditional upon continuing to use climate-smart practices.

“We believe these efforts can be expanded to other regions of India, and other countries,” said Sieg Snapp, CIMMYT’s Sustainable Agrifood Systems (SAS) program director. “Helping farmers and reducing GHG emissions at the same time is the way forward in dealing the crisis of climate change.”

Farms are geo-tagged and monitored using remote sensing for regenerative farming practices, and soil carbon content will be measured at the beginning and end of the crop cycle. Those that produce rice and wheat with a lower carbon footprint will be identified, so their produce gets purchase and price preferences from those who want to promote lower carbon agriculture.

Digital agronomy tools and satellite imagery analysis to measure and verify soil carbon offsets and on-farm GHG emission levels are essential for scaling small farmer-centered carbon projects. The veracity, transparency, and traceability of each carbon offset have direct implications for its credibility and actual market value. CIMMYT will contribute towards a Measurement, Reporting, and Verification (MRV) platform to expand climate action country-wide.

So far, CIMMYT and ICAR researchers estimate that the enrolled smallholder famers have sequestered between four and five tons of carbon dioxide. After independent third-party auditors verify the data, farmers will be paid based on the amount of GHG reduction, with the first carbon offset payments expected to be issued in 2023.

Cover photo: A green maize seedling emerges from the soil (Photo: Wasim Iftikar/CIMMYT)

From seed to feed

Written by Sarah McLaughlin on October 24, 2022. Posted in News.

In 2022, more than 2,000 households participated in CIMMYT’s Maize Commercial Model program, doubling the number of farmers and area of maize produced compared to data from 2021. (Photo: Aayush Niroula/CIMMYT)

Experts at the International Maize and Wheat Improvement Center (CIMMYT) are working with partners to drive self-sufficiency in poultry feed and achieve more sustainable maize systems in Nepal thanks to the Nepal Seed and Fertilizer (NSAF) project.

About 3,000 metric tons (t) of poultry feed is used in Nepal every day, with maize making up about half of feed ingredients. The Feed Association of Nepal estimates that more than 80% of maize for animal feed requirements are met through imports, which costs around $100 million a year. Maize imports are estimated to exceed $130 million in 2022.

Through the NSAF project — a project which facilitates sustainable increases in Nepal’s national crop productivity, income and household-level food and nutrition security across 20 districts — CIMMYT scientists have been supporting public private partnerships to increase commercial maize production and strengthen the “seed to feed” chain in the country.

In the Terai region, huge swaths of land lie fallow in the spring season. Experts estimate that enough maize grain could be produced on this land to substitute about 40% of maize imports to the country. Increasing spring maize production in these fallow lands has been one of the goals of the NSAF team, as well as improving coordination between public and private sectors. To do this, the team have designed a multi-stakeholder engagement initiative to strengthen the seed to feed chain.

In December 2020, CIMMYT experts began the initiative to scale up the use of new maize hybrid varieties and improved agronomic practices. In the spring of 2022, CIMMYT researchers partnered with public and private organizations in Banke, Bardiya and Kailali to help commercialize hybrid maize production and strengthen maize value chain coordination in the region. Partners included integrated agriculture and livestock development offices in Bardiya, agriculture knowledge centers in Banke and Kailali, local governments, farmer cooperatives, seed companies, agro-dealers and feed mills.

Working with these partners, CIMMYT scientists also advanced efforts to improve the capacity of actors to increase efficiency in supply chains, production and marketing, provide local employment and strengthen the market for domestically produced maize for poultry feed.

As of September 2022, the following milestones have been achieved:

Provincial governments have established multi-stakeholder maize commercial networks at sites where maize actors and stakeholders participate to coordinate commercial maize production, access to support services and to link farmers and grain buyers.
In 2022, more than 2,000 households from 19 local government units produced maize on 547 ha in Banke, Bardiya and Kailali. The total maize production increased from 1390t in 2021 to 3,232t in 2022. This was an increase of 61% in the number of farmers and 52% in area. The value of maize sold also tripled from USD 306,900 in 2021 to USD 915,700 in 2022.
The farm gate price of maize by 22% and the Government of Nepal invested $2.37 million to support access to quality seed, agriculture machinery and irrigation facilities.
Farmers sold 500t maize grains to feed mills in 2022, a huge jump from only 30t in 2021.
In partnership with the Government of Nepal, CIMMYT researchers organized training programs for farmers in maize commercial network sites on production, post-harvest, exposure visits and marketing to prepare them to produce maize as per buyers’ requirements. They also guided farmers on how to access credit, crop insurance, and digital advisory services to further improve their production and marketing.

Maize constitutes about half of all poultry feed products in Nepal and maize imports for feed are estimated to be worth around $130 million in 2022. (Photo: Aayush Niroula/CIMMYT)

Next steps

CIMMYT scientists plan to double the number of districts under the maize commercialization model from three to six in 2023. The Department of Agriculture under the Ministry of Agriculture and Livestock Development, and the local and provincial governments are keen to scale out the model to several maize production regions of Nepal.

In a joint assessment with the Government of Nepal and private sector partners, CIMMYT scientists identified a number of key areas for further development. These include supporting farmers to access high yielding, short duration and stress tolerant maize varieties, as well as best management practices for improving maize production. Other priorities include developing models for contractual arrangements between farmers groups and feed mills, encouraging public and private sector investment in village-level warehouses with drying facilities. Finally, CIMMYT and partners are eager to introduce incentives such as subsidies on grain produced and sold by farmers through cooperatives, develop national maize quality standards and update the 1976 Feed Act.

Going forward, CIMMYT’s research on public private partnership for commercial maize production will focus on drivers of uptake of technology and institutional innovations, the role of aggregation models and contractual arrangements in maize market system coordination and impact assessment on farmers benefits.

Increasing yield gain in Afghanistan

Written by Sarah McLaughlin on October 18, 2022. Posted in Publications.

Faced with climate change and having to keep pace in the race to feed the world’s growing population, farmers of staple crops like wheat are under pressure to constantly increase yield per hectare.

Increasing yield gains is especially important in Afghanistan, where per capita consumption of wheat is nearly three times more than the global average and wheat accounts for up to 60% of daily caloric intake of the average Afghan citizen.

The International Maize and Wheat Improvement Center (CIMMYT) develops and distributes improved seed targeted toward diverse wheat growing regions in the developing world, including Afghanistan, a net importer of wheat. A study by CIMMYT scientists, published in Crop Science, measured yield gain and improvement in a variety of traits of CIMMYT developed varieties compared against local wheat, over a 14-year period. The results showed the CIMMYT varieties confer yield gains, contributing to an increase in Afghanistan’s wheat productivity.

In terms of yield, the CIMMYT varieties showed an increase of 123 kilograms per hectare (kg/ha) over the time interval studied, compared to 107 kg/ha for local varieties.

“This study shows continual increases in yield from CIMMYT varieties across Afghanistan,” said lead author Rajiv Sharma. “This shows the potential of genetically improved germplasm to increase yields, strengthen resistance to diseases and improve other important traits.”

Researchers also examined specific traits, like days to heading and overall plant height. Days to heading refers to the number of days from planting to when the plant is ready to be harvested and overall plant height is the highest measurement a plant reaches. This is important because if a wheat plant grows too high, it will lodge (fall over) under its own weight, rendering it non-harvestable.

Across the CIMMYT varieties there was a 1.8 day per year reduction in days to heading. This is a positive sign for Afghan wheat production as research has shown that crop durations will be reduced because of climate-associated stresses. Shorter crop duration also reduces the cost of crop production, since shorter crop duration reduces the requirements for water, labor, fertilizer, and other resources.

In terms of plant height, the CIMMTY varieties showed a gain of 0.77 cm per year. Although a negative correlation between plant height and grain yield has been reported in other studies, this is not the case in Afghanistan. Increased plant height is often an indicator of higher biomass (the amount of aboveground volume including leaves and stems which might fall to the ground) which drives higher yield, provided the plant does not lodge. Higher biomass is also required in many developing countries, including Afghanistan, to produce straw that is used dry fodder feed for livestock. This appears to result from selections to increase overall production, mitigate negative impacts and fulfil the changing preference of farmers.

“This kind of evaluation is important in determining the efficacy of CIMMYT’s efforts to provide improved wheat varieties tailored to diverse production environments around the world,” said Alison Bentley, co-author of the study and director of CIMMYT’s Global Wheat Program. “It also makes a strong case for continued investment in plant breeding and for the collaboration between Afghanistan and CIMMYT.”

Read the study: Plant breeding increases spring wheat yield potential in Afghanistan

Cover photo: Farmers working in a field in the Shibar Valley in Bamian province, Afghanistan. (Adam Ferguson/The New York Times)

CIMMYT and China: A successful partnership since 1974

Written by Mike Listman on October 16, 2022. Posted in Videos.

The International Maize and Wheat Improvement Center (CIMMYT) is a non-profit international organization focused on applied agricultural research and training. It empowers farmers through science and innovation to nourish the world in the midst of a climate crisis.

Established in 1974, the research partnership between the People’s Republic of China and CIMMYT is improving the lives of millions of people in China through science-driven, evidence-based solutions. CIMMYT has five offices and over 20 collaborators throughout China.

The CIMMYT–China collaboration over four decades has added some 10.7 million additional tons of wheat to China’s national wheat output. Since 2000, CIMMYT germplasm has been planted on more than one million hectares across the country.

We look forward to many more years of collaboration to improve the lives of millions of people in China and the world.

Cover photo: An agricultural landscape in Yunnan Province, China. (Photo: Michelle DeFreese/CIMMYT)

Refresher webinar on fall armyworm management in South Asia

Written by Alison Doody on October 14, 2022. Posted in News.

The fall armyworm is a destructive polyphagous pest that feeds on more than 300 crop species, with a particular appetite for maize. The pest was first reported in Asia in 2018 and has been spreading in the region since then, especially in maize-producing countries of South Asia.

Several campaigns on identifying and managing fall armyworm have been conducted in South Asia, yet the challenge to control the pest remains. The damage caused by fall armyworm to farmers’ fields was reported widely during the 2022 spring maize season in Pakistan and Nepal’s Terai region. Many maize farmers complained about the current economic downturn, price hike of agricultural commodities and the unavailability of safe pesticides to reduce crop losses.

On 21 July 2022, the International Maize and Wheat Improvement Center (CIMMYT) initiated a refresher webinar to share the latest scientific advances and best practices for identifying and managing fall armyworm in South Asia. The platform extended an opportunity for the participants to understand and learn about effective integrated pest management (IPM) approaches being practiced in the region. It also addressed the importance of enabling policies that are crucial to foster innovations to reduce crop yield loss and save the environment from hazardous effects of toxic pesticides.

The Nepal Seed and Fertilizer Project (NSAF) team, supported by the United States Agency for International Development (USAID) and implemented by CIMMYT, organized the virtual event in collaboration with Nepal’s Plant Quarantine and Pesticide Management Center, the Nepal Agricultural Research Council, Nepal’s National Maize Research Program, the Maize and Millet Research Institute in Pakistan, the University of Agriculture Faisalabad and CGIAR’s Plant Health Initiative.

Govinda Prasad Sharma, Secretary of Nepal’s Ministry of Agriculture and Livestock Development and Jason Seuc, director of the Economic Growth Office at USAID Nepal, delivered their opening remarks during the inaugural session. The Secretary emphasized the use of safer methods, including but not limited to mass rearing and releasing of natural enemies of fall armyworm and the deployment of fall armyworm tolerant maize varieties.

“USAID will continue working with partners to advocate and promote IPM practices till the pest becomes of non-economic importance,” said Seuc.

BM Prasanna, director of CIMMYT’s Global Maize Program and OneCGIAR Plant Health Initiative lead emphasized the importance of IPM practices to manage the pest. Prasanna discussed the global efforts to control the pest and shared the progress of fall armyworm tolerant maize seeds which are being released and deployed by CIMMYT partners to help resource poor farmers, especially in Africa.

AbduRahman Beshir, NSAF’s seed systems lead, emphasized the importance of the event and acknowledged the participation of approximately 525 attendees from public and private research institutions, academicians, civil society, private sector, policy decision-makers, CGIAR centers and USAID Nepal. The webinar gathered attendees from 15 countries, including Nepal, India, Bangladesh, Pakistan, Thailand, Myanmar, Sri Lanka and China.

Experts from South Asia presented on a range of topics including the status of fall armyworm and its management in Nepal, Pakistan, Bangladesh and the Pacific Region, IPM practices and experience of using safe pesticides, breeding for native genetic resistance to fall armyworm, and biological control and push-pull strategies. The experts emphasized on the need for collective efforts to strengthen national and international coordination, favorable policies, deployment of fall armyworm tolerant maize varieties, and best response interventions to help farmers battle the fall armyworm and limit its spread.

Efforts to mitigate the impact of fall armyworm attacks are still ongoing. CIMMYT is continuously working to alert farmers and stakeholders on the IPM practices of fall armyworm in the region.