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Tag: wheat

Climate-proofing India’s daily bread: The race for resilient wheat

Written by dmedina on . Posted in In the media.

CIMMYT collaborates with Indian research institutions like IIWBR to develop climate-resilient wheat varieties, supplying essential genetic materials and leveraging global research initiatives, advanced breeding techniques, and technological tools. This partnership accelerates the creation and distribution of resilient crops, supporting local scientists and smallholder farmers through training, capacity-building programs, and knowledge sharing to ensure sustainable agriculture and enhanced food security in the face of climate change.

Read the full story.

CIMMYT scientist recognized with research leader award

Written by Sarah McLaughlin on . Posted in News.

Distinguished Scientist and Head of Wheat Physiology at CIMMYT, Matthew Reynolds, received the Research.com Plant Science and Agronomy in Mexico Leader Award 2024 for placing 53rd in the world and 1st in Mexico in the Research.com ranking of Best Plant Science and Agronomy Scientists 2023.

“Being recognized with this award highlights the far-reaching influence of the wheat science taking place in Mexico and its impact on the development of agronomy around the world,” said Reynolds. “Sharing outputs as international public goods with scientists globally has positive benefits for smallholder farmers and their communities. Widening genetic diversity for key traits helps to improve yield and climate resilience -including resistance to biotic and abiotic stresses, providing reliable harvests and food security.”

Matthew Reynolds

This marks the third consecutive year that Reynolds has received the award, having held the top position in plant science and agronomy in Mexico since 2022. His most cited papers include ‘Physiological breeding’ (2016), ‘Raising Yield Potential in Wheat’ (2009)’, and ‘Drought-adaptive traits derived from wheat wild relatives and landraces’ (2007).

Specializing in technologies to increase the productivity of wheat cropping systems around the world, Reynolds has helped to create a new generation of advanced lines at CIMMYT through physiological breeding approaches that widen the genepool, increasing understanding of yield potential and adapting wheat to drought and heat, developing high throughput phenotyping methodologies, and training other researchers.

Reynolds developed and led the Heat and Drought Wheat Improvement Consortium (https://hedwic.org/) and initiated a global academic network that led to the International Wheat Yield Partnership (https://iwyp.org/), where he champions collaboration that brings together plant science expertise from around the globe to boost yield and climate resilience.

Other CIMMYT scientists in the top 100 world rankings include Distinguished Scientist and former Head of Global Bread Wheat Improvement Ravi P. Singh in 57th place globally and 2nd in Mexico, and Distinguished Scientist in the Biometrics and Statistics Unit, José Crossa, who ranked 59th globally and 3rd in Mexico.

This is the third edition of Research.com positioning scholars based on their research output in plant science and agronomy. Rankings are allocated based on a detailed study of 166,880 scientists in bibliometric data sources, with up to 10,700 people analyzed for this field of work.

Wheat cultivation in Africa at risk of fungal disease

Written by dmedina on . Posted in In the media.

A study by the Technical University of Munich (TUM) warns that the wheat blast fungus Magnaporthe oryzae threatens up to 75% of Africa’s wheat cultivation. The disease, spread by windborne spores and exacerbated by climate change, worsens food insecurity. While Zimbabwe remains unaffected, preventive measures are in place. The Zambia Agriculture Research Institute (ZARI), with CIMMYT’s collaboration, is building regional capacity to combat the disease. The study emphasizes the need for resistant wheat varieties and enhanced global and regional cooperation to protect wheat production and ensure food security.

Read the full story.

New heat-tolerant wheat varieties prove fruitful for Ethiopia’s irrigated lowlands

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

Ethiopia is the largest wheat producer in Africa, accounting for around 65% of the total wheat production in sub-Saharan Africa. Despite the old tradition of rainfed wheat cultivation in the highlands, irrigated production in the dry, hot lowlands is a recent practice in the country.

In the irrigated lowlands of Afar and Oromia, situated along the Awash River Basin, CIMMYT and the Ethiopian Institute of Agricultural Research (EIAR) have been supporting small scale farming households to improve yields since 2021. The Adaptation, Demonstration and Piloting of Wheat Technologies for Irrigated Lowlands of Ethiopia (ADAPT-Wheat) project supports research centers to identify new technologies suitable for target planting areas through adaptation and development, which are then released to farmers. Funded by Germany’s Federal Ministry for Economic Development (BMZ) and Deutsche Gesellschaft fuer Internationale Zusammenarbeit (GIZ) GMBH, EIAR leads on implementation while CIMMYT provides technical support and coordination.

In the Afar and Oromia regions of Ethiopia, farmers observe wheat trials of the new varieties released in partnership with CIMMYT and EIAR. (Photo: Ayele Badebo)

So far, several bread and durum wheat varieties and agronomic practices have been recommended for target areas through adaptation and demonstration. The seeds of adapted varieties have been multiplied and distributed to small scale farmers in a cluster approach on seed loan basis.

Cross-continent collaboration

The Werer Agricultural Research Center (WRC) run by EIAR has released two wheat varieties: one bread wheat line (EBW192905) and one durum wheat line (423613), both suitable for agroecology between 300-1700 meters above sea level.

Both varieties were selected from the CIMMYT wheat breeding program at its headquarters in Mexico. The new bread wheat variety exceeded the standard checks by 17% (Gaåmabo and Kingbird) and 28% (Mangudo and Werer). 

The lines were trialed through multi-location testing in Afar and Oromia, with both lines displaying tolerance to biotic and abiotic stresses. Accelerated seed multiplication of these varieties is in progress using main and off seasons.

The ADAPT-Wheat project, working in the region since 2021, has released two new varieties for use in the Ethiopian lowlands. (Photo: Ayele Badebo)

“These new varieties will diversify the number of adapted wheat varieties in the lowlands and increase yields under irrigation” said Geremew Awas, a CIMMYT research officer working for the ADAPT project in Ethiopia. Hailu Mengistu, EIAR wheat breeder at WRC, also indicated the need for fast seed delivery of climate resilient wheat varieties on farmers’ hands to realize genetic gain and increase income and food security of the households.

These new varieties will be provided with a local name by breeders to make it easy for farmers and other growers to identify them and will be introduced to farmers through demonstrations and field days. Eligible seed growers who are interested in producing and marketing the basic and certified seeds of these varieties can access early generation seeds from the WRC.

Ethiopian researchers travel to India to strengthen knowledge regarding increasing wheat productivity

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

The irrigated lowlands of Afar and Oromia in Ethiopia are vital areas for the cultivation of wheat and increasing their productivity is crucial to attaining food security in the light of extended drought and other climate shocks.

Adaptation, Demonstration, and Piloting of Wheat Technologies for Irrigated Lowlands of Ethiopia (ADAPT-Wheat) is a three-year project funded by Germany’s Federal Ministry for Economic Cooperation and Development with the objective of identifying, verifying, and adopting wheat technologies that increase wheat production and productivity in Afar and Oromia.

As part of ADAPT-Wheat’s capacity building mission, four Ethiopian wheat researchers from different disciplines visited the Indian Central Soil Salinity Research Institute (CSSRI), the Indian Institute of Wheat and Barely Research (IIWBR), Land force (Dasmesh Mechanical Works), the Borlaug Institute for South Asia (BISA), and National Agro Industries from 13 -22 March 2024.

At CSSRI, the researchers learned how to reclaim salt-affected soils through the use of salt tolerant crops, improve management of water usage, and employ cover crops in salt-affected soils to reduce soil temperature and evapotranspiration. They also visited a sodic and saline microplot facility used to screen genotypes under the desired salinity and sodicity stresses. The researchers witnessed ongoing activities such as agrochemical/ biological/hydraulic technologies to reclaim salt-affected soils, the use of poor-quality irrigation water for crop production and the adoption of ameliorative technologies for salinity management.

The Ethiopian researchers also attended an international conference organized by the Indian Society of Soil Salinity and Water Quality, “Rejuvenating salt affected soil ecologies for land degradation neutrality under changing climate.”

At IIWBR, researchers visit a gene bank. (Photo: CIMMYT)

They learned about breeding methods, and advances in yield enhancement, disease resistance, sustainable agricultural practices, innovative farming methods, genetic stocks developed for grain protein, iron, and zinc enhanced wheat varieties, phytic acid levels, gluten strength, and grain texture.

At Dasmesh Mechanical Works, they learned the operation and maintenance of equipment ADAPT-Wheat has purchased from Dasmesh, including machines for plowing, land leveling, planting, and threshing.

The visit to BISA included an introduction to Conservation Agriculture methods, such as fertilizer use efficiency and crop residue management, which will ultimately help improve productivity back in Ethiopia. They also viewed an ongoing experiment on Precision–Conservation Agriculture Based Maize-Wheat Systems.

Finally, the researchers visited the CIMMYT-India office and met with Mahesh Kumar Gathala, systems agronomist and lead scientist.

“We are proud to host our Ethiopian colleagues. Collaborating with them allowed us to learn as much from them as they hopefully learned from us during their visit,” said Gathala.

A visit to CSSRI. (Photo: CIMMYT)

For Daniel Muleta (irrigated wheat project coordinator), Shimelis Alemayehu (agronomist), Hailu Mengistu (wheat breeder) and Lema Mamo (soil scientist) all from Ethiopian Institute of Agricultural Research (EIAR), the visit to India was beyond their imagination and gave them the opportunity to participate in salinity workshop, visited different institutions and gained experience. Shimelis said “even though the workshop was for experience sharing the travel made was beyond that”.

The team acknowledged CIMMYT-Ethiopia and CIMMYT India offices and EIAR management.

New innovative crops could significantly reduce agriculture’s climate change impact and environmental footprint

Written by Julian Bañuelos-Uribe on . Posted in Press releases.

As the global population approaches the 10 billion mark, the reliance on fertilisers to boost agricultural production has become an essential, yet environmentally challenging, practice. A Century-long dependence on these additives has allowed food production to keep pace with the growth in human population. However, the use of fertilisers across various farming systems is now causing severe ecological stress. The leaching of nitrogen into natural ecosystems, coupled with the release of greenhouse gases, is pushing the Earth’s environmental limits to a critical threshold.

To address this, an ambitious new research initiative aims to shrink the nitrogen footprint of agriculture by developing a breakthrough technology based on nature’s own solutions: a natural process called biological nitrification inhibition (BNI). The Novo Nordisk Foundation has awarded CIMMYT a grant of up to USD 21.1 million to lead an innovation research initiative called CropSustaiN that is designed to reduce the nitrogen footprint of wheat cultivation.

“Success in this initiative could lead to a major shift in agricultural practices globally, benefiting both the planet and farmers’ livelihoods. In addition to using less fertiliser, cost for the farmer will be minimal because all the components are already in the seed. This initiative could, potentially, be extended from wheat cultivation to include other staple crops like maize and rice,” says Claus Felby, Senior Vice President, Biotech, Novo Nordisk Foundation.

“BNI could be a part of how we revolutionise nitrogen management in agriculture. It represents a genetic mitigation strategy that not only complement existing methods but also has the potential to decrease the need for synthetic fertilisers substantially. The mitigation potential of better nitrogen fertiliser management could be as impactful for the Global South as the Green Revolution,” explains Bram Govaerts, Director General, CIMMYT.

Revolutionary mitigation approach

Rooted in a seed-based genetic strategy, BNI leverages a plant’s innate ability to suppress soil nitrification through the release of natural compounds. This approach potentially promises to curb the use and leaching of synthetic nitrogen fertilisers—a significant contributor to greenhouse gas emissions and water pollution—without compromising wheat yield or soil vitality. The BNI-method contrasts with synthetic nitrification inhibitors and could offer a more scalable and cost-effective solution, potentially reducing nitrogen fertiliser usage by 20%, depending on regional farming conditions.

By harnessing the power of genetics in plant seeds, CropSustaiN leverages the natural process of BNI to develop new wheat varieties that require significantly less nitrogen fertiliser. Using conventional breeding, genes from wild crop relatives like wild rye, which have inherently better nitrogen use efficiency, are incorporated. CIMMYT makes such breeding products available to its global network of partners for the international public good.

The agenda for CropSustaiN includes validating BNI efficacy across diverse climates and integrating the technology into mainstream agricultural protocols. While the venture carries success risks, the potential rewards—ranging from widespread BNI adoption to valuable insights into nitrogen management—position it as a pioneering initiative. By ensuring that the seeds developed through this program are accessible to all farmers without exclusive patent rights, the Novo Nordisk Foundation is leading an inclusive approach to agricultural innovation.

CropSustaiN builds on the joint research by the Japan International Research Center for Agricultural Sciences (JIRCAS) and CIMMYT that started in 2015. The initiative has already yielded BNI wheat lines tested over three farming seasons. These innovative crops are now poised for further development and for scaling worldwide, indicating a potential paradigm shift in agricultural practices.

The Novo Nordisk Foundation has already laid the groundwork for CropSustaiN by funding related BNI research at CIMMYT, the International Crops Research Institute for the Semi-Arid Tropics (ICRISAT), Aarhus University, the University of Aberdeen, and the University of Copenhagen -thus fostering an ecosystem for research innovation.

About the Novo Nordisk Foundation

Established in Denmark in 1924, the Novo Nordisk Foundation is an enterprise foundation with philanthropic objectives. The vision of the Foundation is to improve people’s health and the sustainability of society and the planet. The Foundation’s mission is to progress research and innovation in the prevention and treatment of cardiometabolic and infectious diseases as well as to advance knowledge and solutions to support a green transformation of society.

www.novonordiskfonden.dk/en

About CIMMYT

CIMMYT is a cutting edge, non-profit, international organization dedicated to solving tomorrow’s problems today. It is entrusted with fostering improved quantity, quality, and dependability of production systems and basic cereals such as maize, wheat, triticale, sorghum, millets, and associated crops through applied agricultural science, particularly in the Global South, through building strong partnerships. This combination enhances the livelihood trajectories and resilience of millions of resource-poor farmers, while working towards a more productive, inclusive, and resilient agrifood system within planetary boundaries. CIMMYT is a core CGIAR Research Center, a global research partnership for a food-secure future, dedicated to reducing poverty, enhancing food and nutrition security, and improving natural resources. For more information, visit staging.cimmyt.org.

Further information 

Jakob Stein, Communications Specialist, jse@novo.dk

Rebel Seeds’ Borlaug gets Hard wheat classification

Written by dmedina on . Posted in In the media.

Australia’s smallest seed company, Rebel Seeds, has achieved a significant milestone with the Australian Hard classification for Borlaug 100, a wheat variety introduced in 2015 through the CIMMYT-Australia-ICARDA Germplasm Evaluation (CAIGE) project. This classification allows Borlaug 100 to be delivered into H2 segregations at bulk-handling sites across Queensland and northern New South Wales, benefiting local growers with better prices and enhancing its export potential. The success of Borlaug 100 underscores CIMMYT’s crucial role in providing resilient, high-yielding wheat varieties suited to diverse growing conditions globally.

Read the full story.

Enhanced radiation use efficiency and grain filling rate as the main drivers of grain yield genetic gains in the CIMMYT elite spring wheat yield trial

Written by dmedina on . Posted in In the media.

CIMMYT’s Bread Wheat Breeding Program analyzed top wheat genotypes over 14 years, aiming to boost grain yield (GY) and stability. Results at the Norman E. Borlaug Research Station in Mexico showed an annual GY gain of 0.96%, driven by enhancements in biomass, grain filling rate, and radiation use efficiency. This underscores CIMMYT’s success in delivering high-yielding wheat varieties globally and suggests potential future gains through diverse genotype intercrossing.

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Re-imagining heat tolerance traits in wheat

Written by dmedina on . Posted in In the media.

Researchers, funded by the GRDC, are collaborating with experts from ANU, the University of Adelaide, and CIMMYT to enhance heat tolerance in wheat. Led by Professor Owen Atkin and Dr. Scott Boden, the projects aim to identify genetic markers for breeding heat-resistant varieties. Using advanced phenotyping technology, scientists are exploring biochemical pathways and heat shock proteins to develop solutions for climate change-induced challenges in agriculture.

Read the full story.

Successful surveillance results in early first detection of Ug99 in South Asia

Written by dmedina on . Posted in In the media.

The detection of the Ug99 wheat stem rust strain TTKTT in Nepal showcases the effectiveness of CIMMYT-led global surveillance efforts. Identified early through diligent field surveys by Nepal’s NPPRC and NWRP and confirmed by Denmark’s GRRC, this proactive response helped prevent further spread. Despite no subsequent detections in South Asia, the case underlines the importance of ongoing surveillance and development of resistant wheat varieties, supported by international initiatives.

Read the full story.

Unlocking the power of collaboration in global wheat science

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

CIMMYT Global Wheat Program (GWP) scientists visited National Agricultural Research Systems (NARS) partners in Pakistan, Nepal, and India during February 2024. The key purpose was to review current approaches and explore new opportunities to enhance collaborative wheat improvement activities.

NARS partners described their current priorities and recent changes in their activities, while CIMMYT shared recent modernization efforts of its wheat breeding and highlighted opportunities to enhance collaborative wheat improvement. GWP representatives included Interim Wheat Director Kevin Pixley, and scientists Naeela Qureshi, Velu Govindan, Keith Gardner, Sridhar Bhavani, T.P. Tiwari, and Arun K Joshi.

Representatives from the Pakistan Agricultural Research Council (PARC) and CIMMYT meet to identify chances for improved cooperation in wheat breeding research. (Photo: Awais Yaqub/CIMMYT)

Planning the future of South Asian wheat

In each country, CIMMYT and NARS leaders held a one-day meeting to review and plan their wheat improvement partnership, with attendance from 25-30 wheat scientists in each country. The sessions aimed to review and identify bottlenecks to the wheat impact pathway in each country, describe recent changes in the breeding programs of CIMMYT and NARS partners, and prioritize and agree updates to the NARS-CIMMYT wheat improvement collaborations.

NARS partners highlighted their wheat improvement programs through field visits to research stations. Visitors attended Wheat Research Institute (ARI), Faisalabad and National Agricultural Research Center (NARC), Islamabad in Pakistan; National Wheat Research Program (NWRP), Bhairahawa and National Plant Breeding & Genetics Research Center (NPBGRC), Khumaltar in Nepal; and Indian Institute of Wheat and Barley Research (IIWBR), Punjab Agricultural University (PAU), Borlaug Institute for South Asia (BISA), and the Indian Agricultural Research Institute (IARI) in India.

The GWP team also visited: Faisalabad Agricultural University, with a special focus on collaborative zinc biofortification work in Pakistan; farmers’ fields in Nepal to see participatory evaluations of elite wheat lines (candidates for release as new varieties) and to hear from farmers about challenges and expectations from improved varieties; and the Lumbini Seed Company to learn about the crucial role of seed companies, bottlenecks, and opportunities in the pathway from research to impact in farmers’ fields.

NARS scientists and directors in all three countries were enthusiastic about the opportunities for enhanced partnership to adopt some of the modernizing technologies that AGG has brought to CIMMYT. Partners are especially keen to –

  1. Receive earlier generation varieties, segregating breeding lines to empower them to select in their own environments.
  2. Model and explore strategies to shorten their breeding cycles.
  3. Apply quantitative genetics tools to better select parents for their crossing blocks.
  4. Adopt experimental designs that improve efficiency.
  5. Explore opportunities for co-implementing improvement programs through shared testing schemes, communities of practice (e.g. for quantitative genetics or use of exotic germplasm to address challenges from climate change), and more.
A highlight of the trip in Nepal: visiting on-farm trials, where farmers share insights about their preferences for improved varieties, where they often mentioned tolerance over lodging. (Photo: CIMMYT)

“The visit provided CIMMYT and NARS wheat scientists with the opportunity to exchange experiences and ideas, and to explore ways of enhancing collaborations that will strengthen our joint impact on wheat farmers and consumers,” said Pixley.

Following these visits, the Bangladesh Wheat and Maize Research Institute (BWMRI) soon reached out to CIMMYT to request a similar review and planning meeting, with a vision to modernize and strengthen their wheat improvement partnership.

Arun K Joshi receives prestigious Sh. VS Mathur Memorial Award

Written by Richa Sharma Puri on . Posted in News, Press releases.

The Society for the Advancement of Wheat and Barley Research (SAWBAR), ICAR-IIWBR, Karnal, bestowed the prestigious Sh. VS Mathur Memorial Award 2023 for outstanding contribution in the field of Wheat Crop Improvement.

T Mohapatra, former secretary of India’s Department of Agricultural Research and Education and director general of the Indian Council of Agricultural Research (ICAR), and Gyanendra Singh, director of the Indian Institute of Wheat & Barley Research (IIWBR) at ICAR, presented the award at the ceremony on March 27, 2024.

As recipient of this award Joshi, who is the managing director of the Borlaug Institute for South Asia (BISA), CIMMYT country representative for India, and CIMMYT regional representative for South Asia, also delivered the Sh. VS Mathur memorial lecture during the ceremony. In his speech, Joshi spoke about past and present developments in wheat improvement and emphasized the importance of wheat across the globe, touching on the post-Green Revolution era and the critical timeline of events in wheat improvement. He delved into the factors responsible for variations in wheat yield and how to meet the rising demand for wheat consumption.

Arun Kumar Joshi receives the Sh. VS Mathur Memorial Award. (Photo: CIMMYT)

Joshi advised that countries like India must bridge the yield gap by improving management in farmers’ fields, co-learning from other spring wheat-growing countries like Mexico and Egypt, and investing in science to address climate change. He also discussed opportunities to integrate modern science across all disciplines: genomics, gene editing, mechanization, robotics, AI, weed management, water, and nutrient use efficiency.

Talking about the future of wheat production, Joshi stressed the need to focus on traits that will be more important in the future, with an emphasis on accelerated genetic gain, gene-edited wheat, and how to breed heat-tolerant (40° C) varieties using various innovative tools and technologies.

About CIMMYT:

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

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

For more information, visit cimmyt.org.

About the Society for the Advancement of Wheat and Barley Research (SAWBAR):

SAWBAR was founded in 2007 and is housed at ICAR-Indian Institute of Wheat and Barley Research Karnal (Haryana) India. The Society presently has 300 life members and more than 320 annual and student members. SAWBAR is playing a significant role in bringing wheat and barley researchers on one platform for the exchange of innovative research and dissemination of knowledge related to the latest research happenings in the area of wheat and barley improvement. Annually, SAWBAR gives awards to pioneer cereal workers in various award categories.

About the Sh. VS Mathur Memorial Award:

The Sh. VS Mathur Memorial Award was constituted in year 2018 in the memory of eminent wheat worker Sh. VS Mathur. Mathur was one of the pioneer wheat workers who worked tirelessly with MS Swaminathan and HK Jain and developed a large number of high-yielding wheat varieties viz. Heera, Moti, Janak (HD 1982), Arjun (HD 2009), HD 2177, HD 2182, HD 2204, HD 2236, HD 2278, HD 2281, HD 2285, HD 2329, HD 2307 and HD 2327 for various regions of India.

Successful surveillance results in early first detection of Ug99 in South Asia

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

Successful global wheat disease surveillance and monitoring has resulted in early detection of wheat stem rust Ug99 in Nepal. A combination of vigilant field surveys and sampling by Nepal’s National Plant Pathology Research Centre (NPPRC) and National Wheat Research Program (NWRP), supported by rigorous and accurate disease diagnostics at the Global Rust Reference Center (GRRC), Denmark, resulted in confirmed detection of the Ug99 strain named TTKTT. The long running and sustained surveillance efforts undertaken by NPPRC and NWRP, including off-season surveys, proved vital in the detection of Ug99 in Nepal. Confirmed results were obtained from two field samples collected in early November 2023 from off-season summer wheat crops in Dolakha district, Nepal. Repeated experiments and high quality pathotyping and genotyping at GRRC confirmed the results.

“The combination of molecular genotyping of incoming samples, without prior recovery in our laboratory and independent diagnostic assays of recovered stem rust isolates, confirmed the presence of Ug99 and a highly virulent race variant termed TTKTT,” says professor Mogens Hovmþller, leader of the GRRC at Aarhus University in Denmark.

Suraj Baidya (NPPRC) and Roshan Basnet (National Wheat Research Program) undertake field surveys at Dandunghe, Dolakha, Nepal. (Photo: CIMMYT)

Ug99 was first detected in East Africa in 1998/99, and its unique virulence sparked fears that a large proportion of wheat cultivars globally would be at risk from this potentially devastating disease. The international wheat community came together through the Borlaug Global Rust Initiative (BGRI) to address the threats posed by Ug99. The BGRI partners have successfully monitored the evolution and spread of Ug99 and bred hundreds of resistant wheat varieties that are now being grown at scale in priority wheat growing regions. Migration of Ug99 from Africa to other regions, including South Asia, was always seen as likely due to the transboundary nature of the disease and long-distance dispersal of rust spores by wind.

Detection of a Ug99 race in Nepal is not therefore a surprise, but it highlights the effectiveness of the wheat rust surveillance and monitoring systems that have been developed. The disease was present at extremely low levels in the fields in Nepal, and early detection is one of the main factors in preventing disease spread. Other factors also contribute to reduced risk. The wheat on which the Ug99 race TTKTT was detected were fodder crops and cut soon after the surveys were completed, which prevented further buildup of disease. In addition, no wheat is grown in the main season in these areas, with farmers shifting to cultivation of potato (a non-host crop for stem rust).

According to Suraj Baidya, senior scientist and chief of NPPRC, “Extensive follow up surveys in the Dolakha detection area by NPPRC in the 2023/24 main season resulted in no wheat being observed and no detection of stem rust.” Similarly, extensive surveys by NPPRC throughout other wheat growing areas of Nepal in the 2023/24 main season have resulted in no reports of stem rust in the country. To date, extensive surveys in other countries in South Asia (Pakistan, Bangladesh, Bhutan) have not detected stem rust in 2023/24.

Although the current risk of stem rust outbreaks is considered to be low, detection of the Ug99 race TTKTT in Nepal is a clear reminder of the threat posed to wheat production in South Asia by the incursion of virulent stem rust races or other plant diseases of concern. “The spread and risk from transboundary diseases like stem rust is increasing,” says Dave Hodson, leader of the Wheat Disease Early Warning Advisory Systems (DEWAS) project at CIMMYT. “Sustained and increased surveillance efforts are needed across the region and expanded to include other important emerging diseases.” Successful deployment of Ug99 resistant cultivars through the BGRI partners, including CIMMYT, ICARDA and NARS, has decreased vulnerability, but it is important to note that the race TTKTT is a recently evolved variant of Ug99 with additional virulence compared to the original strains. As a result, not all cultivars in South Asia may have effective resistance today. Screening of germplasm and major cultivars from South Asia against TTKTT at the Kenya Agriculture and Livestock Research Organization (KALRO)/CIMMYT international stem rust screening nursery in Kenya is extremely important to get an accurate picture of current vulnerability.

The details of the diagnostic confirmation of Ug99 in Nepal are available at the GRRC website (see GRRC lab report)

Work on wheat disease surveillance and monitoring, plus breeding of resistant varieties is being supported by the DEWAS and AGG projects funded by BMGF and FCDO, UK.

Key partners –

National Plant Pathology Research Centre (NPPRC), Nepal. Contact: Suraj Baidya (suraj_baidya222@yahoo.co.in)

National Wheat Research Program (NWRP), Nepal. Contact: Roshan Basnet

Global Rust Reference Center (GRRC), Aarhus University, Denmark. Contact: Mogens HovmĂžller (mogens.hovmoller@agro.au.dk)

Cornell University. Contact: Maricelis Acevedo (ma934@cornell.edu)

CIMMYT. Contact: David Hodson (d.hodson@cgiar.org)

Bargaining for Better: How gender roles in household decision-making can impact crop disease resilience

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

‘A better understanding of the links between gender roles in household decision-making and the adoption of technologies can enhance the uptake of innovations in smallholder farming systems,’ concludes a recently published paper by CIMMYT. The paper connects women’s bargaining power in households with the adoption of rust resistant wheat varieties, based on the work of Accelerating Genetic Gains in Maize and Wheat (AGG) in Ethiopia.

“While an emerging body of literature finds positive correlations between women’s influence in household decision-making and socioeconomic, health, and nutritional outcomes, few studies have analyzed the links between intra-household decision-making and the adoption of agricultural technologies,” said Michael Euler, agriculture research economist at CIMMYT.

A case study in Ethiopia

For this study, researchers used a dataset from Ethiopian wheat-producing households.

Ethiopia is the second-largest wheat producer in Africa, with an aggregate grain production of 5.5 million metric tons and 4-5 million farmers engaged in cultivation. The Ethiopian Highlands are a hot spot for wheat rust. With recurrent epidemics in the last decade, the emergence of new strains of wheat rust increased production risks. On the positive side, farmers seem to be responsive to the management of rust diseases. Rust-resistant bread wheat varieties, released since 2010, have been widely adopted by smallholder farmers across Ethiopia.

The CIMMYT study surveyed 1,088 wheat-producing households in Ethiopia to analyze the links between women’s role in household decision-making concerning crop production and the adoption and turnover rates of rust-resistant wheat varieties. Female and male members from the same households responded separately, which facilitated capturing individual perceptions and the intra-household dynamics in decision-making.

Farmer Shumuna Bedeso weeds her wheat field. (Photo: Peter Lowe/CIMMYT)

Intra-household decision-making arrangements and wheat varietal choice

Overall, the study reveals a positive association between women’s role in decision-making regarding the selection of wheat seed and the adoption of rust-resistant wheat varieties and wheat varietal turnover. Findings may be related to differences in risk aversion between women and men farmers. While women farmers may tend to advocate for the adoption of rust resistant varieties to avoid potential financial difficulties that arise from purchase of fungicide in the growing season, men farmers may be more inclined to adopt high yielding varieties and use fungicides to combat rust within the season.

Spouses may agree or have different opinions regarding their decision-making roles. Spousal agreement on the woman having a role in making crop variety decisions is associated with higher adoption rates compared to spousal agreement that the woman has no role. Joint decision-making with mutually uncontested spousal roles may yield better outcomes due to larger combined exposure to information, as well as spousal discussion and reflection on potential implications of the varietal choice decision.

Conclusion: It is about negotiation, contestation and consensus

Household decisions, including the decision to adopt agricultural technologies often result from negotiation, contestation, and consensus between wife and husband. This process is shaped by diverging interests, motivations and objectives, while its results are determined by different levels of individual bargaining power. “Our findings indicate that women’s ownership of agricultural land and household assets is strongly associated with their active role in household decisions on wheat varietal choice, and with spousal agreement,” said Moti Jaleta, senior agricultural economist at CIMMYT. The dynamics in intra-household decision-making are likely to influence households’ adoption of agricultural technologies.

Disregarding the dynamics in decision-making implies that households are unilateral decision-makers, a scenario which probably does not hold true considering the level of spousal disagreement regarding their roles and influence in choosing crop varieties. A deeper understanding of the connections between gender dynamics in household decision-making and adoption choices can enhance the efficiency of public extension systems, increase the adoption rates of modern innovations, improve agricultural productivity, and enhance livelihoods in smallholder agriculture.

Read the complete paper here.

PARC pioneered, climate resilient wheat varieties

Written by dmedina on . Posted in In the media.

The “Sino-Pak Research Activities on Wheat Genomics” seminar, featuring CIMMYT-CAAS China’s Prof. Dr. Zhonghu He, highlighted the CIMMYT’s contributions to enhancing wheat genomics for better productivity and food security. Hosted by PARC at NARC, the event underscored advancements in breeding technologies and molecular markers, aiming to develop climate-resilient wheat varieties and foster Sino-Pak collaboration in agricultural research and innovation.

Read the full story.