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research: Sustainable agrifood systems

Reflections from the Sorghum Conference: Insights and Inspiration for the Future

Written by mcallejas on . Posted in News.

The recently concluded Sorghum Conference brought together researchers, scientists, and experts from around the world to discuss the potential and challenges associated with this resilient crop. Participants shared their key takeaways, experiences, and insights during the event, shedding light on the importance of sorghum and its potential applications.

The International Maize and Wheat Improvement Center (CIMMYT) demonstrated valuable insights and technological advances in a variety of sessions, helping to shape the future of sorghum cultivation and products. CIMMYT has initiated a crop improvement program, known as the Dryland Crop Program (DCP) focusing on sorghum, millet, chickpea, pigeon pea and groundnuts. The program is establishing a network with stakeholders in 17 countries in Africa to collaboratively create, develop, and implement a crop improvement network. This approach will enable CIMMYT and the network to identify suitable products for specific market segments, establish joint breeding pipelines, conduct germplasm testing, and ultimately release and scale up superior seed varieties, thereby improving the quality and yield of these dryland crops, ensuring food security, and promoting sustainable agricultural practices.

Among the speakers and presenters at the conference were six National Agricultural Research Extension Systems (NARES) partners. They presented their findings, addressing critical topics such as adaptation genetics and genomics, climate and environmental change, sorghum yield optimization techniques, and the development of new sorghum products for human consumption.

These are some of their reflections:

Exploring the diverse applications of sorghum

Henry Nzioka from Kenya Agricultural and Livestock Research (KALRO) focused on the resiliency, adaptability, and versatility of sorghum. He appreciated the presentations that highlighted the resilience of sorghum in harsh environments. His research presentation focused on biological control measures and genetic resistance for managing the striga weed in sorghum. His findings aligned with one of the objectives of the conference, which was to develop climate-aware weed management technologies. Nzioka acknowledged the need to bridge the gap between research and the various actors in the sorghum value chain. In addition, he gained valuable knowledge regarding the application of modeling tools and farmer research networks.

“The knowledge gained here can contribute to the advancement of sorghum-related industries or research. However, its relevance will be country specific as different countries have different preferences and it may also depend on level of technological advancement of respective countries. Countries can be provided with a basket of options from which they can pick the best bet for advancement.”

Charles Bett engages a participant in conversation during his poster presentation (Photo: Marion Aluoch/CIMMYT)

The importance of collaboration and the potential of sorghum

Charles Bett of KALRO, commended the high quality of the research papers and posters presented and emphasized the event’s timeliness and extensive use of technology. Bett was motivated by the research methodologies employed by other participants and gained new insights that he intends to incorporate into his own work. He summarized the impact of the conference as the realization of sorghum’s enormous potential for reducing food and nutrition insecurity and boosting household incomes. Bett presented on the evaluation of agricultural mechanization levels in the sorghum value chain, which aligned with the conference’s goal of reducing losses and increasing productivity. His reflections and lessons learned include the necessity of a broader coverage of thematic areas at future conferences and the dissemination of existing sorghum technologies to address productivity limitations. “While it is important to continue working on technology development, more efforts should be put on dissemination of existing technologies and address productivity depressing constraints.”

Promoting Sorghum as the future crop

Baba Haoua from INRAN, Niger emphasized the future potential of sorghum. The presentations and discussions inspired him and reinforced his belief that sorghum is destined to become a major player in the global agricultural landscape. Haoua’s own research on dual-purpose sorghum perfectly aligns with the objectives of the conference and he left the event knowledgeable and well-connected, eager to continue his work with vigor.

Promoting agroecological transition and regional research on sorghum

Assitan Daou, from the Institut d’Economie Rurale (IER) in Mali emphasized the suitability of sorghum as a crop for growing populations in varying climates and the significance of an agroecological transition for adaptation to climate change. His poster presentation centered on sorghum cropping systems under rainfed conditions, which aligned with the conference’s goals of increasing crop productivity, adapting to climate variations, and bolstering the resilience of small-scale farmers. He considers the viability of sorghum production, the breaking of boundaries in the sorghum value chain, and the factors driving future sorghum demand. The exchange with other researchers, as well as the opportunity to improve his communication skills and establish contacts for future collaboration, satisfied Daou’s expectations for the conference. He learned new research techniques, such as crop modeling, and believes the knowledge he gained at the conference will advance sorghum-related industries and research.

A photo with a participant on a poster presentation by Haoua Baba (Photo: Marion Aluoch/CIMMYT)

Recognizing the resilience and potential of sorghum

Rekiya Abdoulmalik, from the Institute of Agriculture Research (IAR) in Nigeria, presented about the stability evaluation of recently released dwarf sorghum lines, which aligned with the conference’s objective of revealing the genetic potential of sorghum in various environments. The conference motivated her to explore new ideas and directions for her research, particularly regarding the significance of root system architecture for drought resistance. She left the conference with new knowledge and a vision for climate-smart sorghum varieties that can meet food and feed requirements.

Exposing the economic worth of sorghum

Alex Zongo, from the Institut de l’Environnement et des Recherches Agricoles (INERA) / CNRST in Burkina Faso, was inspired by the conference to shift the focus of his research to understanding the value of sorghum for inclusive and sustainable agriculture. He gained a deeper understanding of sorghum’s uses, such as in baking, brewing, and animal feed. Zongo was inspired by the conference to investigate the economic contribution of sorghum and increase stakeholder awareness. “New knowledge shows that crop association (which mobilizes sorghum to a greater extent) helps to stabilize crop yields through soil fertility management. We therefore need to study its economic contribution.”

Unveiling the potential of sorghum to shape sustainable agriculture

Written by mcallejas on . Posted in News.

Scientists, researchers and stakeholders from around the world gathered at the global sorghum conference from June 5-9, 2023, in Montpellier, France, to discuss the latest developments in sorghum research, innovation, challenges and sustainable practices in the face of climate change.

The Dryland Crops Program (DCP) partners pose for a group photo at the Sorghum Conference (Photo: Marion Aluoch/CIMMYT)

Participating as a sponsor, the International Maize and Wheat Improvement Center (CIMMYT) demonstrated valuable insights and technological advances in a variety of sessions. Two CIMMYT representatives and six National Agricultural Research Extension Systems (NARES) partners, presented findings, addressing critical topics such as adaptation genetics and genomics, climate and environmental change, sorghum yield optimization techniques and the development of new sorghum products for human consumption.

CIMMYT has initiated a crop improvement program, known as the Dryland Crop Program (DCP), focused on sorghum, millets (pearl and finger millet), chickpea, pigeon pea and groundnut. The program is in the process of establishing a CGIAR-NARES network with stakeholders form 17 countries in Africa to collaboratively create, develop and implement a crop improvement network for these crops in Eastern, Southern, Western and Central Africa. This cooperative approach will enable CIMMYT and the network to identify suitable products for specific market segments, establish joint breeding pipelines, conduct on-farm germplasm testing and ultimately release and scale up superior seed varieties. This will ultimately lead to improving the quality and yield of these dryland crops, ensuring food security and promoting sustainable agricultural practices.

Nebie Baloue from CIMMYT Senegal providing information about the Dryland Crops Program (DCP) program to visitors at the CIMMYT’s booth (Photo: Marion Aluoch/CIMMYT)

Abhishek Rathore presented “Understanding sorghum race level diversity and development of sorghum genomic resources by using deep learning-based variant calling approach,” which examines sorghum’s racial diversity and the creation of genomic resources. Using a deep learning-based variant, researchers identified race-specific genetic signatures and gained a comprehensive understanding of sorghum race structure and domestication processes. These discoveries pave the way for more targeted breeding programs and the identification of single nucleotide polymorphism (SNPs) markers.

Baloua Nebie presented a poster on “Crop improvement network approach to co-develop market required products and strengthen partners’ capacities in Africa.” He indicated the dryland crops improvement programs are in collaboration with CGIAR-NARES programs, with CIMMYT acting as a facilitator within the network to deliver varieties more quickly and efficiently in response to market demand. The network is comprised of 10 NARES in Western and Central Africa, seven NARES in Eastern and Southern Africa, as well as farmer organizations and seed companies. In addition to their national roles, NARES partners will contribute to regional activities based on their comparative advantages; these roles include co-sharing of regional pipelines development, early to late testing of breeding lines, product release and scaling. Through consultative meetings and program evaluation, these activities will be aligned with the regional and country-specific market segments identified by stakeholders.

Alex Zongo of the Institut de l’Environnement et des Recherches Agricoles (INERA) / CNRST – Burkina Faso, a NARES partner, presented research analyzing the macro-institutional determinants of the adoption of new sorghum/millet varieties. He shed light on the obstacles associated with the adoption of new sorghum/millet varieties. The research uncovered the economic and social incentives that prevent their scaling through a combination of qualitative and quantitative analysis.

Mr. Jeffrey Ehlers Program Officer at the Bill & Melinda Gates Foundation engages in conversation with Nebie Baloua from CIMMYT Senegal at the CIMMYT’s booth (Photo: Marion Aluoch/CIMMYT)

With climate change posing a significant threat to global agriculture, NARES partners involved in regional networks have delved into the pressing issues of enhancing sorghum production’s climate resilience. Rekiya Abdoulmalik, from the Institute of Agriculture Research (IAR) in Nigeria, presented a poster on the threats to sorghum cultivation in Nigeria posed by current security issues and potential climate change effects. The study evaluated 14 varieties of dwarf sorghum in multiple locations. The analysis identified stable, high-yielding varieties with the potential to contribute to Nigeria’s food security in the face of shifting environmental conditions.

Other NARES partners presenting posters included Henry Nzioka from Kenya Agricultural and Livestock Research (KALRO), who made a case for the biological control of the striga weed in sorghum. Citing technological advancements, he illustrated how the integration of climate-smart weed management technologies can lead to the control of the weed.

Another presentation by Charles Bett of KALRO focused on mechanization in the sorghum value chain, which revealed that investments in machinery and traction power have a positive and significant effect on sorghum yield. The findings recommend a shift in policy to help farmers afford small-scale machinery and gradually replace ox power with affordable machinery.

Baba Haoua, from INRAN, Niger, highlighted that introducing specific genes into sorghum varieties through conventional breeding will increase their nutritional content and identify promising lines for local farmers, providing a sustainable solution for improving sorghum for both grain and livestock feed applications.

Assitan Daou from the Institut d’Economie Rurale (IER) in Mali emphasized the suitability of sorghum as a crop for growing populations in varying climates and the significance of an agroecological transition for adaptation to climate change. His poster presentation centered on sorghum cropping systems under rainfed conditions, which aligned with the conference’s goals of increasing crop productivity, adapting to climate variations and bolstering the resilience of small-scale farmers.

The conference, according to Chris Ojiewo, Strategic Partnerships and Seed Systems lead for the Dryland Crops Program at CIMMYT, played a crucial role in sharing the latest sorghum research findings and their outcomes. “The conference provided an important platform for communicating advances in research and associated outputs and outcomes on sorghum as an important cereal grain contributing to food, nutrition and income securities and overall resilience in agrifood systems especially to smallholder farmers in areas prone to drought stress and more so in the face of changing and variable climates,” said Ojiewo.

Nebie Baloua from CIMMYT Senegal engaging with visitors at the CIMMYT’s stand (Photo: Marion Aluoch/CIMMYT)

CIMMYT also set up an exhibition booth that provided an overview of the various activities undertaken as a part of its dryland crop programs and CGIAR-NARES improvement network. Senior officials of donor organizations consulted CIMMYT staff regarding approaches to dryland crops improvements, key achievements and the possibility of new partnerships.

The next 21st Century Global Sorghum Conference will be hosted by Texas University in Lubbock in September 2026.

Pankaj Koirala

Written by mcallejas on . Posted in Uncategorized.

Pankaj Koirala has a PhD in Economics and currently contributes to CSISA Ukraine project within CIMMYT’s Sustainable Agrifood Systems (SAS) program. He conducts research in agricultural systems, climate change, and sustainability, especially focusing on survey data and human/farmer’s behaviors, socioeconomic and institutional contexts. Currently, he engages in studies to understand the impacts of climatic variables on food and nutritional security, climate change adaptation and mitigation.

Koirala has published peer-reviewed scientific papers on Economic Policy and Analysis, sustainability, and others and served as a reviewer in various peer-reviewed journals.

Country moving forward from wheat importer to self-sufficiency

Written by mcallejas on . Posted in Features.

Wheat is critical to millions of households in Pakistan as it serves a dual role as a foundational part of nutritional security and as an important part of the country’s economy. Pakistan’s goal to achieve self-sufficiency in wheat production is more attainable with the release of 31 wheat varieties since 2021.

These new seeds will help the country’s 9 million hectares of cultivated wheat fields become more productive, climate resilient, and disease resistant—a welcome development in a region where climate change scenarios threaten sustained wheat production.

The varieties, a selection of 30 bread wheat and 1 durum wheat, 26 of which developed from wheat germplasm provided by the International Maize and Wheat Improvement Center (CIMMYT) were selected after rigorous testing of international nurseries and field trials by partners across Pakistan. During this period, three bread wheat varieties were also developed from local breeding programs and two varieties (one each of durum and bread wheat) were also developed from the germplasm provided by the ICARDA. These efforts are moving Pakistan closer to its goal of improving food and nutrition security through wheat production, as outlined in the Pakistan Vision 2025 and Vision for Agriculture 2030.

Harvesting wheat in Tandojam, Pakistan (Photo: CIMMYT)

Over multiple years and locations, the new varieties have exhibited a yield potential of 5-20% higher than current popular varieties for their respective regions and also feature excellent grain quality and attainable yields of over seven tons per hectare.

The new crop of varieties exhibit impressive resistance to leaf and yellow rusts, compatibility with wheat-rice and wheat-cotton farming systems, and resilience to stressors such as drought and heat.

Battling malnutrition

Malnutrition is rampant in Pakistan and the release of biofortified wheat varieties with higher zinc content will help mitigate its deleterious effects, especially among children and women. Akbar-2019, a biofortified variety released in 2019, is now cultivated on nearly 3.25 million hectares. Farmers like Akbar-2019 because of its 8-10% higher yields, rust resistance, and consumers report its good chapati (an unleavened flatbread) quality.

“It is gratifying seeing these new varieties resulting from collaborative projects between Pakistani wheat breeding programs and CIMMYT along with funding support from various donors (USAID, Bill & Melinda Gates Foundation, HarvestPlus, and FCDO) and the government of Pakistan,” said Ravi Singh, wheat expert and senior advisor.

Closing the yield gap between research fields and smallholder fields

Releasing a new variety is only the first step in changing the course of Pakistan’s wheat crop. The next step is delivering these new, quality seeds to markets quickly so farmers can realize the benefits as soon as possible.

Increasing evidence suggests the public sector cannot disseminate enough seeds alone; new policies must create an attractive environment for private sector partners and entrepreneurs.

Field monitoring wheat fields (Photo: CIMMYT)

“Pakistan has developed a fast-track seed multiplication program which engages both public and private sectors so the new varieties can be provided to seed companies for multiplication and provided to farmers in the shortest time,” said Javed Ahmad, Wheat Research Institute chief scientist.

Strengthening and diversifying seed production of newly released varieties can be done by decentralizing seed marketing and distribution systems and engaging both public and private sector actors. Marketing and training efforts need to be improved for women, who are mostly responsible for household level seed production and seed care.

A concerted effort to disseminate the improved seed is required, along with implementing conservation agriculture based sustainable intensification, to help Pakistan’s journey to self-sufficiency in wheat production.

Regenerative Agriculture Boosts Second Green Revolution

Written by mcallejas on . Posted in In the media.

CIMMYT leds different regenerative agriculture projects with companies like Nestlé and Bimbo that positively impact food security and rural communities in Mexico. These initiatives aim to boost productivity through regenerative agriculture practices to positively impact food security, the environment and social inclusion in the Mexican countryside.

Read the full story.

 

Bram Govaerts appointed as CIMMYT Director General

Written by Julian Bañuelos-Uribe on . Posted in News.

Bram Govaerts, renowned scientist and leader, has been appointed as CIMMYT’s Director General for the period 2023-2028 as of July 1, 2023, after holding the position on an interim basis for two years and steering the organization through the unprecedented global challenges of the pandemic and ongoing food insecurity.

Under Govaerts’ leadership, CIMMYT has expanded its research portfolio and strengthened its work in key regions. Govaerts has also started an effort to streamline internal processes and operations to speed up CIMMYT’s response capacity and impact across the world.

Bram with Zamseed staff holding pro-vitamin A orange maize (Photo: Katebe Mapipo/CIMMYT)

Govaerts holds a PhD in Bioscience Engineering – Soil Science, a master’s degree in Soil Conservation and Tropical Agriculture, and a bachelor’s degree in Bioscience Engineering, all from Katholieke Universiteit Leuven, Belgium. He has also received multiple awards during his career: the Development Cooperation Prize from the Belgian Federal Government in 2003, the Norman Borlaug Award for Field Research and Application in 2014, the Premio Tecnoagro, awarded by an organization of 2,500 Mexican farmers in 2018, and Fellow of The American Society of Agronomy (ASA). In addition to leading CIMMYT, Govaerts is an A.D. White Professor-at-Large at Cornell University.

“With Bram’s appointment, I am excited and confident about CIMMYT’s future,” said Margaret Bath, Chair of CIMMYT’s Board of Trustees. “We look forward to many great days ahead for CIMMYT staff across the globe, who lift smallholder farmers and their communities to achieve better and more sustainable livelihoods and to ensure that food security is delivered, and human potential maximized.”

Scientists urge shifting more nitrogen to low-input farms and better use on high-yield farms

Written by Mike Listman on . Posted in Publications.

Integrated management of organic and inorganic nitrogen sources in high- to low-yield cereal production could bring yearly savings in nitrogen fertilizer of over 1 million tons in India, some 90,000 tons in Ethiopia, and more than 20,000 tons in Malawi, according to a new scientific paper, “Spatially differentiated nitrogen supply is key in a global food-fertilizer price crisis.”

“Global policies and governments should prioritize nitrogen supplies to low-yield, low-fertility cropping systems, such as smallholder maize and rice farms in Malawi, which are representative of the highly N-deficient cereal systems relied upon by over 100 million people in sub-Saharan Africa,” said Sieglinde Snapp, director of the Sustainable Agrifood Systems Program at the International Maize and Wheat Improvement Center (CIMMYT) and first author of the paper. “Those farmers should also ramp up organic nitrogen inputs, such as manure and legume crops.”

In the intensive, high-yield cropping systems of India, farmers generally over-apply N fertilizer on 90% of the rice and wheat crops and more than half of maize crops. Less than half the nitrogen is taken up and used by the crops and the rest is lost into the environment, contaminating water, land, and the atmosphere. “Simply saving the excess fertilizer from over-fertilized areas and shifting it to low-application areas could increase global crop yields by 30%, with huge reductions in greenhouse gas emissions,” said Tek Sapkota, co-author of the paper and climate change leader at CIMMYT.

This study is based on evidence of achievable shifts in nitrogen management over 1-2 years, for a modest proportion of cropped area (10%). “We did not assess interventions with longer time horizons or large investment requirements such as precision agriculture, mechanization, or deep placement of fertilizer,” Snapp explained.

Snapp and her colleagues used evidence from the scientific literature to estimate N-fertilizer savings from the above interventions for maize, wheat, and rice cropping systems in India, Ethiopia, and Malawi. Integrated organic and inorganic nitrogen management was estimated by considering manure and legume N inputs along with N fertilizers. The effect of reallocating public subsidies to more cost-effective, high-N fertilizer was calculated as the extra nitrogen that could be made available through a lower unit cost of nitrogen.

Food production vs healthy environment?

According to Snapp, humanity is caught in a bind. Food crops grown using synthetic nitrogen fertilizer have fed expanding world populations since the 1960s, fertilizer use has increased nearly 10-fold since then, and significantly higher food demands lie ahead to mid-century. At the same time, poor use of N fertilizer is hurting the environment and, most recently, geopolitical conflicts have disrupted N fertilizer supplies and exposed the vulnerabilities of the global fuel-fertilizer-food nexus.

“In regions where cropping systems are highly deficient in nitrogen, investment is needed in policies and extension education to promote the use of organic nitrogen residues and legume crops,” Snapp said.

Extension agencies, she suggests, can extend their reach using digital tools and bi-directional communication approaches that engage local knowledge and farmers, including advisories regarding local soils and crop and fertilization requirements.

An Example of International Cooperation: China and CIMMYT

Written by mcallejas on . Posted in In the media.

Awais Rasheed has established a high-throughput KASP molecular breeding platform and made outstanding contributions to promoting China-Pakistan cooperation. He has discovered and validated 90 KASP markers available for wheat breeding, accounting for 60 percent of similar markers internationally, which are widely used in China and 15 other countries.

Read the full story here.

Agricultural Transformation in Africa

Written by Julian Bañuelos-Uribe on . Posted in News.

Reiterating the commitment to leading agriculture innovation across Africa, Bram Govaerts, director general of the International Maize and Wheat Improvement Center (CIMMYT), took part in the 8th Africa Agribusiness and Science Week (AASW8), June 5-8, 2023, in Durban, South Africa.

Partners discuss how to generate greater impact for farmers through regional partnerships between One CGIAR and African stakeholders (Photo: Liesbet Vannyvel/CIMMYT)

The theme of the AASW8 was linking science, innovation, and agribusiness for resilient food systems.

CGIAR System Board Chair Lindiwe Sibanda called for increased research and innovation to achieve an impact at scale and benefit African farmers at the opening ceremony.

Govaerts moderated a partner panel discussion regarding opportunities to strengthen the collaboration between One CGIAR and African research stakeholders.

Organizations represented on the panel included leaders from Technologies for African Agricultural Transformation, Total Landcare, Lupiya, Chitetezo Farmer Federation, and Green Sahel.

The African Development Bank, the African Union Commission, the Forum for Agricultural Research in Africa, and CGIAR also launched the Action Plan for the Abidjan II CommuniquĂ© that aims to build Africa’s resilience to future shocks by bolstering agricultural research and innovation systems to give farmers access to the science and technologies that they need to thrive.

“African countries must systematically review what is needed for the transformation of agrifood systems taking into consideration the present and future needs, and significantly increase investment in agricultural research and development,” said Govaerts.

Local and regional agribusiness is an essential industry playing a significant role in Africa’s prospects for economic growth and ensuring food security of its citizens. Still, challenges include regional harmonization of crop variety releases, surveillance of transboundary pests, and the growing threats of climate change.

“CIMMYT is dedicated to collaborating with local stakeholders to facilitate policies at the national, regional, and continental levels to promote proactive and eco-friendly management of transboundary plant health threats,” said Govaerts.

CIMMYT Director General reaffirms commitment to Zambia

Written by Julian Bañuelos-Uribe on . Posted in News.

Honoring a legacy of innovative development in Zambia and looking forward to meeting the nation’s goals for food security, Bram Govaerts, director general of the International Maize and Wheat Improvement Center (CIMMYT), along with CGIAR Board Chair Lindiwe Sibanda, visited facilities and met with southern Africa collaborators of the Southern Africa AID-I Rapid Delivery Hub on June 2 and 3, 2023.

Bram Govaerts visited field experiments with the head of science at Zamseed (Photo: Katebe Mapipo/CIMMYT)

“CIMMYT’s work in Zambia and the region is geared to help national governments build resilience to climate change, diversify maize-based farming systems and improve productivity and production to address reduce hunger and poverty,” said Govaerts.
Southern Africa AID-I Rapid Delivery Hub aims to provide critical support to over 3 million farming households in Malawi, Tanzania and Zambia via targeted interventions for demand driven seed scaling, improved soil health and fertilizer use efficiency, and rapid delivery of critical agricultural advisory services deep into rural communities.

CIMMYT research and innovation supports Zambia’s medium-term goal of “Socio-Economic Transformation for Improved Livelihoods” and its 2030 Vision of becoming “A Prosperous Middle-Income Nation by 2030.”

Govaerts and Sibanda toured Afriseed’s factory in Lusaka and its wheat field trials in Ngwerere. They also attended a field demonstration of Purdue Improved Crop Storage bags in the nearby district of Chongwe organized by the Catholic Relief Services, a local partner promoting low-cost post-harvest technologies for small-scale farmers in Zambia.
The delegation visited private partner Zamseed, a company commercializing and releasing CIMMYT-bred, Fall Armyworm tolerant maize seeds.

Southern Africa AID-I Rapid Delivery Hub has enabled the release of nearly 10,000 metric tons of certified maize and legume seed, which have been harvested by Zambian seed companies and community-based seed organizations, directly benefiting a million semi-subsistence farmers.

Govaerts also hailed Zambia’s commitment to creating a transparent seed system. “Thanks to this conducive policy environment, Zambia is a major hub in sub-Saharan Africa for hybrid maize seed production and export in Africa.”

Kevin Kabunda opened a partner meeting in which Bram Govaerts met AID-I farmers and partners from seed companies, educational institutions, CGIAR centers, and micro-finance and tech companies. (Photo: Katebe Mapipo/CIMMYT)

Besides Southern Africa AID-I Rapid Delivery Hub, CIMMYT and the Zambia Agricultural Research Institute have been collaborating for over two decades along with public and private partners in Zambia through different investments designed to create sustainable interventions that strengthen food systems and directly reach small-scale farmers.

CIMMYT and BWMRI host international training program on surveillance and management strategies for wheat blast

Written by Julian Bañuelos-Uribe on . Posted in News.

The devastating disease wheat blast is a threat to crop production in many South Asian countries. In Bangladesh, it was first identified in seven southern and southwestern districts in 2016, and later spread to 27 others causing significant damage. The International Maize and Wheat Improvement Center (CIMMYT) is working with the Bangladesh Wheat and Maize Research Institute (BWMRI) and other national partners to conduct research and extension activities to mitigate the ongoing threat.

From March 1-10, 2023, a group of 46 wheat researchers, government extension agents, and policy makers from ten countries — Bangladesh, Brazil, China, Ethiopia, India, Japan, Mexico, Nepal, Sweden, and Zambia — gathered in Jashore, Bangladesh to learn about and exchange experiences regarding various wheat diseases, particularly wheat blast. Following the COVID-19 pandemic, this was the first in-person international wheat blast training held in Bangladesh. It focused on the practical application of key and tricky elements of disease surveillance and management strategies, such as resistance breeding and integrated disease management.

Training participants get hands-on practice using a field microscope, Bangladesh. (Photo: Ridoy/CIMMYT)

“This is an excellent training program,” said Shaikh Mohammad Bokhtiar, executive chairman of the Bangladesh Agriculture Research Council (BARC), during the opening session.  “Participants will learn how to reduce the severity of the blast disease, develop and expand blast resistant varieties to farmers, increase production, and reduce imports.”

This sentiment was echoed by Golam Faruq, director general of BWMRI. “This program helps in the identification of blast-resistant lines from across the globe,” he said. “From this training, participants will learn to manage the devastating blast disease in their own countries and include these learnings into their national programs.”

Hands-on training

The training was divided into three sections: lectures by national and international scientists; laboratory and field experiment visits; and trips to farmers’ fields. Through the lecture series, participants learned about a variety of topics including disease identification, molecular detection, host-pathogen interaction, epidemiology and integrated disease management.

Hands-on activities were linked to working on the Precision Phenotyping Platform (PPP), which involves the characterization of more than 4,000 wheat germplasm and releasing several resistant varieties in countries vulnerable to wheat blast. Participants practiced taking heading notes, identifying field disease symptoms, tagging, and scoring disease. They conducted disease surveillance in farmers’ fields in Meherpur and Faridpur districts — both of which are extremely prone to wheat blast — observing the disease, collecting samples and GPS coordinates, and completing surveillance forms.

Muhammad Rezaul Kabir, senior wheat breeder at BWMRI, explains the Precision Phenotyping Platform, Bangladesh. (Photo: Md. Harun-Or-Rashid/CIMMYT)

Participants learned how to use cutting-edge technology to recognize blast lesions in leaves using field microscopes. They went to a pre-installed spore trapping system in a farmer’s field to learn about the equipment and steps for collecting spore samples, observing them under a compound microscope, and counting spores. They also visited the certified seed production fields of Shawdesh Seed, a local company which has played an important role in promoting wheat blast resistant varieties BARI Gom 33 and BWMRI Gom 3 regionally, and Bangabandhu Sheikh Mujibur Rahman Agricultural University (BSMRAU) in Gazipur to see current wheat blast research in action.

Blast-resistance in Bangladesh

“I am so happy to see the excellent infrastructure and work ethics of staff that has made possible good science and impactful research come out of the PPP,” said Aakash Chawade, associate professor in Plant Breeding at the Swedish University of Agricultural Sciences. “Rapid development of blast-resistant varieties and their dissemination will help Bangladesh mitigate the effects of wheat blast, not only inside the country but by supporting neighboring ones as well.”

Training participants scout and score disease in a blast-infected wheat field, Bangladesh. (Photo: Md. Harun-Or-Rashid/CIMMYT)

“Besides the biotic and abiotic challenges faced in wheat production, climate change and the Russia-Ukraine crisis are further creating limitations to wheat production and marketing,” said Pawan Kumar Singh, head of Wheat Pathology at CIMMYT and lead organizer of the training. “Due to the development of blast-resistant wheat varieties and its commercial production under integrated disease management practices, the domestic production of wheat in Bangladesh has increased and there is increased interest from farmers in wheat.”

Dave Hodson, a principal scientist at CIMMYT and one of the training’s resource speakers, added: “This is a remarkable success that researchers developed two blast resistant varieties in Bangladesh urgently. It was only achievable because of the correct measures taken by the researchers and support of Government policies.”

However, there are still some barriers to widespread adoption of these varieties. As such, in parallel to other activities, a team from Bangladesh Agricultural University (BAU) joined the field trip to meet local farmers and conduct research into the socio-economic factors influencing the adoption and scaling of relevant wheat varieties.

Wheat output in Africa and South Asia will suffer severely from climate change by 2050, modelling study shows

Written by Julian Bañuelos-Uribe on . Posted in Publications.

Leading crop simulation models used by a global team of agricultural scientists to simulate wheat production up to 2050 showed large wheat yield reductions due to climate change for Africa and South Asia, where food security is already a problem.

The model predicted average declines in wheat yields of 15% in African countries and 16% in South Asian countries by mid-century, as described in the 2021 paper “Climate impact and adaptation to heat and drought stress of regional and global wheat production,” published in the science journal Environmental Research Letters. Climate change will lower global wheat production by 1.9% by mid-century, with the most negative impacts occurring in Africa and South Asia, according to the research.

“Studies have already shown that wheat yields fell by 5.5% during 1980-2010, due to rising global temperatures,” said Diego N.L. Pequeno, wheat crop modeler at the International Maize and Wheat Improvement Center (CIMMYT) and lead author of the paper. “We chose several models to simulate climate change impacts and also simulated wheat varieties that featured increased heat tolerance, early vigor against late season drought, and late flowering to ensure normal biomass accumulation. Finally, we simulated use of additional nitrogen fertilizer to maximize the expression of these adaptive traits.”

Wheat fields in Ankara, Turkey, where data was used for crop model simulation (Photo: Marta Lopes/CIMMYT)

The wheat simulation models employed — CROPSIM-CERES, CROPSIM, and Nwheat within the Decision Support System for Agrotechnology Transfer, DSSAT v.4.6 — have been widely used to study diverse cropping systems around the world, according to Pequeno.

“The DSSAT models simulated the elevated CO2 stimulus on wheat growth, when N is not limiting,” he said. “Our study is the first to include combined genetic traits for early vigor, heat tolerance, and late flowering in the wheat simulation.”

Several factors, including temperature, water deficit, and water access, have been identified as major causes in recent wheat yield variability worldwide. The DSSAT wheat models simulate the impact of temperature, including heat stress, water balance, drought stress, or nitrogen leaching from heavy rainfall.

“Generally, small and low-volume wheat producers suffered large negative impacts due to future climate changes, indicating that less developed countries may be the most affected,” Pequeno added.

Climate change at high latitudes (France, Germany, and northern China, all large wheat-producing countries/region) positively impacted wheat grain yield, as warming temperatures benefit wheat growth through an extended early spring growing season. But warmer temperatures and insufficient rainfall by mid-century, as projected at the same latitude in Russia and the northwestern United States, will reduce rainfed wheat yields — a finding that contradicts outcomes of some previous studies.

At lower latitudes that are close to the tropics, already warm, and experiencing insufficient rainfall for food crops and therefore depending on irrigation (North India, Pakistan, Bangladesh), rising heat will damage wheat crops and seriously reduce yields. China, the largest wheat producer in the world, is projected to have mixed impacts from climate change but, at a nation-wide scale, the study showed a 1.2% increase in wheat yields.

“Our results showed that the adaptive traits could help alleviate climate change impacts on wheat, but responses would vary widely, depending on the growing environment and management practices used,” according to Pequeno. This implies that wheat breeding for traits associated with climate resilience is a promising climate change adaptation option, but its effect will vary among regions. Its positive impact could be limited by agronomical aspects, particularly under rainfed and low soil N conditions, where water and nitrogen stress limit the benefits from improved cultivars.

Extreme weather events could also become more frequent. Those were possibly underestimated in this study, as projections of heat damage effects considered only changes in daily absolute temperatures but not possible changes in the frequency of occurrence. Another limitation is that most crop models lack functions for simulating excess water (e.g., flooding), an important cause of global wheat yield variability.

This study was supported by the CGIAR Research Program on Wheat agri-food systems (CRP WHEAT; 2012-2021), the CGIAR Platform for Big Data in Agriculture, the International Wheat Yield Partnership (IWYP115 Project), the Bill & Melinda Gates Foundation, the World Bank, the Mexican government through the Sustainable Modernization of Traditional Agriculture (MasAgro) project, and the International Treaty of Plant Genetic Resources for Food and Agriculture and its Benefit-sharing Fund for co-funding the project, with financial support from the European Union.

Food security is a national security issue everywhere

Written by Julian Bañuelos-Uribe on . Posted in In the media.

By: Professor Lindiwe Majele Sibanda, Chair, CGIAR System Board

With conflict in Ukraine, Sudan and elsewhere, the relationship between instability, migration and food security is increasingly apparent.

The Russia Ukraine crisis, is affecting food systems around the world, driving up the price of grains and fertilizers with countries that can least afford it hit the hardest. At the same time, broader food insecurity is contributing to forced migration and rising social tensions.

Accelerating climate change amplifies the risks, with yields for some crops in sub-Saharan Africa set to fall by up to 35 per cent by 2050.

Read the full story in English here.

This article was originally published in Swedish by Global Bar Magazine.