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Wheat breeding strategies for increased climate resilience

Written by dmedina on . Posted in News.

Wheat breeding strategies for increased climate resilience

With the challenges of climate change already affecting plant breeding, especially warmer days and warmer nights, the time to future proof the world’s food supply is now. In order to make the best-informed changes, scientists at CIMMYT ran simulations mimicking five scenarios that might play out over the next 70+ years.

The researchers used 3,652 breeding line records from six global nurseries administered by the International Wheat Improvement Network, which is coordinated by CIMMYT, and involves hundreds of partners and testing sites worldwide. Researchers ran the data through five different climate change scenarios, ranging from stable to severe.

Along with colleagues from Henan Agricultural University, Zhengzhou, China, ICARDA, and the Chinese Academy of Agricultural Sciences, CIMMYT scientists published their research in Nature Climate Change.

The results showed that less than one-third of wheat varieties adapted well to the warming the planet has already seen in the last 10 years. As temperatures increased in the simulation, researchers found a clear connection between rising temperatures and lower stability for a variety. As the global wheat-growing area becomes warmer and experiences more frequent heatwaves, breeding programs have to look beyond just yield optimization.

“Stability is key for breeding programs and farmers,” said co-lead author Matthew Reynolds, CIMMYT distinguished scientist and head of wheat physiology. “Knowing that a specific variety works well in a specific environment and produces an expected amount of yield allows farmers better plan their crop futures.”

“We performed the analysis from different perspectives, so that climate effects and appropriate adjustment suggestions for current breeding models can be considered from climate change, gene selection and/or gene–environment interaction perspectives,” said co-lead author Wei Xiong, CIMMYT Senior Scientist and Agricultural System Modeler.

The paradox of breeding elite lines

Local and regional breeding programs, as well as targeted breeding by CIMMYT, contribute to gene pools that overlap for many key agronomic traits, which limit genetic diversity.

“It is an unintended consequence,” said Reynolds. “As conventional breeding focuses on crossing the best and elite material, such focus can actually reduce genetic diversity.”

This ‘paradox’ shows the need to increase genetic variability and environmental diversification in breeding programs that are developing higher-yielding climate-resilient cultivars. Breeding programs also need to target traits associated with improved adaptation to increased temperatures and tolerance to heatwaves, which requires multidisciplinary integration.

Looking to the past for answers

Over the past 10,000 years, the climate has been unusually stable, meaning modern, domesticated bread wheat has not been exposed to wide swings in temperature that are forecast for the next 100 years. Wild wheat relatives, like Triticeae, have had millions of years of experience in weathering changing climates.

CIMMYT has a pre-breeding program that examines wild wheat races and more exotic sources for climate resilience traits. When such traits are identified genetically, new breeding techniques such as gene editing can be employed and breeding models refined.

To activate these new techniques, several barriers need to be overcome, including more sharing of germplasm between countries and breeding teams, the use of faster breeding cycles where appropriate and improved understanding of genes that improve heat tolerance without a yield penalty.

With reduced climate resilience and slow cultivar development, the need to increase genetic variability for climate adaptation is urgent, particularly in developing countries, where warming rate is unprecedented, and breeding cycles tend to be longer than in developed countries.

“Faced with more climate variability, breeders need to revisit their breeding strategies to integrate genetic diversity that confers climate resilience without penalties to productivity,” said Reynolds.

CIMMYT and China join forces to tackle wheat disease in Africa

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

While wheat acreage has been increasing across the whole of Africa, the sub-Saharan countries account for a significant proportion of the total growth and yield, equaling an area of approximately 3.1 million hectares and a production of more than 9 million tons. However, in recent years, Fusarium head blight (FHB) or head scab has become a major disease in the region, causing significant reductions in yield and quality due to the lack of resistant varieties and management tools.

In China, a successful wheat shuttle breeding program by the Chinese Academy of Agricultural Sciences (CAAS) and CIMMYT for improving FHB has existed since the 1980s. Additionally, CIMMYT and the Jiangsu Academy of Agricultural Sciences (JAAS) have provided an FHB screening station in Nanjing since 2019. With a wealth of experience in confronting the disease, this ongoing partnership can help to solve the challenges currently faced by farmers in Africa.

To this end, CAAS, JAAS, and CIMMYT organized a training workshop on FHB management for Africa, which took place with financial support from China Aid in Beijing and Nanjing, China, between 10 and 23 April 2024. Twenty participants, 45% of which were women, attended the workshop, with specialists in wheat breeding, pathology, seed quarantine, and other related fields at public institutions in Ethiopia, Zambia, and Lesotho.

“This is the first time China has worked with an international organization to conduct an agricultural training workshop for sub-Saharan Africa,” said Zhonghu He, CIMMYT distinguished scientist and country liaison officer in China.

A hands-on demonstration at the Jiangsu Academy of Agricultural Sciences (JAAS) and CIMMYT Fusarium head blight (FHB) precision phenotyping platform helps scientists in Africa to better understand and fight the wheat disease. (Photo: Liu Xiyan/CAAS)

Practical tools to target FHB

Experts from China and CIMMYT shared their successful experiences of FHB management, including breeding resistant varieties. The trainees benefitted from hands-on experience of FHB identification, disease screening (including inoculum preparation, inoculation, and scoring), mycotoxin quantification techniques, and wheat breeding.

At the end of the workshop, the participants were extremely pleased to observe the impressive progress made in China on wheat FHB both on breeding and disease control, and they expressed strong willingness to contribute to collaboration between Africa, China, and CIMMYT on more wheat breeding and research. Netsanet Bacha Hei from the Ethiopian Institute of Agricultural Research (EIAR) was impressed with the scientific and technical expertise provided in the training and mentioned that sub-Saharan Africa needs similar practical trainings to mitigate the threat of FHB. Similar opinions were echoed by Doreen Malekano Chomba from the Zambian Plant Quarantine and Phytosanitary Service (PQPS), who discussed the need to have an effective in-country surveillance and monitoring to assess and manage FHB in the region.

Participants gather for the opening ceremony of the workshop at the Chinese Academy of Agricultural Sciences (CAAS) in Beijing. (Photo: Li Simin/CAAS)

Xu Zhang, who heads the FHB research program at JAAS, is very appreciative of the collaborative work that has been going on for several decades between CIMMYT and China, highlighting that the workshop represents another step in understanding and managing FHB in sub-Saharan Africa and beyond, Zhang said, JAAS and CIMMYT has grown together through strong partnership.

“This training lays firm groundwork for future China-Africa-CIMMYT collaboration on mitigating the threat of FHB and improving wheat production and food security in sub-Saharan African countries,” said He.

MARA-CIMMYT Joint Laboratory hosts CGIAR delegation

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

CGIAR delegation arrives at the Joint Laboratory. (Photo: CIMMYT)

Several experts from across CGIAR, including Sonja Vermeulen, managing director of Genetic Innovation, Hugo Campos, CIP deputy director, Sarah Hearne, CIMMYT Genetic Resources program director a.i., and Charlotte Lusty, Genetic Innovation senior director gene banks, the Alliance Bioversity-CIAT, visited the Minister of Agriculture and Rural Affairs MARA-CIMMYT Joint Laboratory on 25-26 January 2024.

The MARA-CIMMYT Joint Laboratory, hosted by Chinese Academy of Agricultural Sciences (CAAS), is a global leader in Chinese wheat quality and molecular development and application and plays a significant role in variety development, serving as an entry point for international collaboration.

The visit follows a China visit from CIMMYT’s Director General Bram Govaerts. “We remain committed to strengthening collaboration ties by continuing wheat and maize germplasm introduction, and climate change adaptation and carbon sequestration, two key issues we discussed, bearing in mind that our partnership with China is mutually beneficial and contributes to the world’s food security,” said Govaerts.

“The partnership between the Ministry of Agriculture and Rural Affairs and CIMMYT sets the standard for collaboration among CGIAR organizations and government ministries,” said Vermeulen. “And the timely and effective facilitation of the CAAS is a key part of this venture’s success.”

CGIAR delegation stands with Zhonghu He. (Photo: CIMMYT)

CIMMYT Distinguished Scientist and the Country Representative for China, Zhonghu He, presented the history and achievement of the China-CIMMYT partnership.

“CIMMYT maize varieties have been planted on more than 1 million hectares across China and three thousand new inbred lines were introduced to broaden the genetic base of Chinese maize germplasm,” said He. “The MARA-CIMMYT partnership has released thirteen commercial maize varieties in Nepal and elsewhere.”

The delegation received a first-hand look at noodle quality evaluation and gave high recommendation to the wheat variety Zhongmai 578, derived from CIMMYT germplasm with high-yield potential and excellent pan bread and noodle qualities. It is planted on half a million hectares across China, with a yield of six-thousand tons, leading to both improving farmer income and enhancing the competitiveness of the food industry in China.

Building on fifty years of collaboration, a visit by Chinese politicians to CIMMYT in Mexico breeds new opportunities for tackling global agricultural challenges

Written by Sarah McLaughlin on . Posted in News.

Tang Renjian, former governor of Gansu province, China, and current Minister of Agriculture and Rural Affairs and CIMMYT Director General, Bram Govaerts. (Photo: CIMMYT)

The Minister of Agriculture and Rural Affairs for China, Tang Renjian, visited CIMMYT headquarters on Thursday, 11 January, along with dignitaries from the Ministry of Agriculture and Rural Affairs (MARA) and the Embassy of China. Tang, the former governor of Gansu province in China, attended the site with the aim of building on collaborative scientific work between his country and CIMMYT through the Joint Laboratory for Maize and Wheat Improvement in China.

CIMMYT was delighted to host Tang to showcase the benefits of the CIMMYT-China relationship for wheat and maize, and to identify opportunities for sustained collaboration. The highly regarded minister was able to hear about work including genetic analysis service for agriculture and methods to close the gap between farmers and research, as well as to observe CIMMYT’s facilities and field experiments. The meeting laid the foundations for potential future CIMMYT-China projects in areas such as germplasm exchange, molecular breeding, climate-resilient technology, and training.

Bram Govaerts, director general of CIMMYT, said, “Showcasing our science to Tang is an exciting chance for CIMMYT and China to grow what is already a fruitful partnership, impacting millions of people globally.”

Exemplifying impactful global partnerships

Since 1974, the CIMMYT-China relationship has improved the lives of millions of people via numerous evidence-based scientific projects, with support from the Chinese Academy for Agricultural Sciences (CAAS). Through five decades of partnership, the collaboration has resulted in up to 10.7 million additional tons of wheat for China’s national output with a value of US $3.4 million.

CIMMYT’s contribution to China’s wheat and maize is significant. In terms of wheat, 26% of wheat grown in China has been derived from CIMMYT germplasm since the year 2000, with Chinese scientists adding more than 1,000 accessions to the CIMMYT gene bank. CIMMYT maize varieties have been planted on more than 1 million hectares in China, with the partnership responsible for the release of 13 commercial varieties.

Renjian and Chinese dignitaries tour CIMMYT’s museum. (Photo: CIMMYT)

In 2023, the Joint Wheat Molecular Breeding International Lab (Joint Lab) launched as a collaborative project between China, Pakistan, and CIMMYT, with the aim of developing new high yield wheat varieties and enhancing capacity for crop breeding and production.

More recently, scientists have played an important role in the free exchange of germplasm between China and countries in Africa, which will help to mitigate against any gene pool loss caused by climate-induced extreme weather events and enable the development of more resilient crop varieties.

Tang said, “Witnessing first-hand the work of CIMMYT’s scientists in Mexico is inspiring. We look forward to exploring further how we can build on the excellent relationship between China and CIMMYT to address global agricultural challenges.”

Govaerts said, “We hope that this partnership continues in order to address the need for nutritious crops and to develop innovative solutions for smallholder farmers.”

Celebrating collaboration in science

Written by mcallejas on . Posted in News.

On the evening of 31 October 2023, CIMMYT held a partnership and alumni event with partners in China. Over 100 people from all over China joined the event in Beijing, which was chaired by He Zhonghu, distinguished scientist and CIMMYT country representative for China.

 

The event centered around the promotion and celebration of mutual collaboration in scientific research. In his opening speech, CIMMYT Director General Bram Govaerts celebrated the progress of the China-CIMMYT partnership, and highlighted what can further be achieved for global food security through continued partnership. His sentiments were echoed by the Vice President of the Chinese Academy of Agricultural Sciences (CAAS), Sun Tan, who expressed his high expectations and strong support for future collaboration between Chinese institutions and CIMMYT.

 

Bram Govaerts presents on China’s and CIMMYT’s partnership. (Photo: Lu Yan/CIMMYT)

The event saw four Chinese institutions sign agreements with CIMMYT to promote mutual partnership: the Institute of Crop Sciences at CAAS, Huazhong Agricultural University, Henan Agricultural University, and Xinjiang Academy of Agricultural Sciences. Additionally, a ceremony was held in which 28 alumni and four partner institutions received awards for their contributions to scientific collaboration.

A fruitful partnership

China and CIMMYT have had a fruitful partnership over the past 45 years in areas including shuttle breeding, genomic research, sustainable crop systems and trainings that have greatly contributed to strengthening China’s food security with positive spillover effects to neighboring countries in the region.

The successful CIMMYT-China collaboration in shuttle breeding from the 1980s laid the foundations for the establishment of CIMMYT’s office in China in 1997. Bilateral cooperation then expanded to set up a Joint Lab between CIMMYT and the Ministry of Agriculture and Rural Affairs (MOARA), in which more than 20 Chinese agricultural research institutes also participated. More recently in 2019, CIMMYT and the Jiangsu Academy of Agricultural Sciences jointly opened a new screening facility for the deadly and fast-spreading fungal wheat disease, fusarium head blight.

Bram Govaerts and Fan Shenggen receive an award from former visiting scientists. (Photo: Lu Yan/CIMMYT)

CIMMYT has transferred approximately 26,000 wheat seed samples to more than 25 institutions in China, which are now using these materials in their breeding or crop improvement programs. As a result of these efforts, 300 wheat cultivars derived from CIMMYT germplasm have been released and are currently grown on 10% of China’s wheat production area. This collaboration between CIMMYT and China has yielded 10.7 million tons of wheat grain with an estimated value of $3.4 billion.

Additionally, CIMMYT-derived maize varieties have been planted on more than one million hectares across China, and 3,000 new inbred maize lines have been introduced through CIMMYT to broaden the genetic base of Chinese breeding efforts in southwestern provinces.

China, Pakistan launched joint wheat breeding lab

Written by Sarah McLaughlin on . Posted in In the media.

On March 2, the China-Pakistan Joint Wheat Molecular Breeding International Lab (“Joint Lab”) was launched, funded by the Science and Technology Partnership Program, Ministry of Science and Technology of China, with the joint support from China‘s Ministry of Agriculture and Rural Affairs, National Agriculture Research Center of Pakistan and the International Maize and Wheat Improvement Center (CIMMYT).

The joint lab aims to develop new varieties with high yield and resistance to disease, enhancing breeding capacity and wheat production in Pakistan, where wheat is the largest food crop.

Read the original article: China, Pakistan launched joint wheat breeding lab

CIMMYT-China workshop aims to facilitate future collaborations to battle climate change

Written by Sarah McLaughlin on . Posted in News.

Hybrid maize seed and ears of the Yunrui 88 variety, developed using CIMMYT and Chinese germplasm. It is high-yielding, resistant to important diseases, and drought tolerant, and farmers report that the ears can be stored for longer and are better for animal feed. It was released in 2009 and is now the most popular hybrid in the area. (Photo: Michelle DeFreese/CIMMYT)

The negative effects of climate change on food systems are felt across political boundaries, so creating sustainable remediation steps are best accomplished through global collaboration. In that spirit, the International Maize and Wheat Improvement Center (CIMMYT) and the Chinese Academy of Agricultural Sciences (CAAS) convened the China-CIMMYT Workshop on Climate Change & Food Crops Production on December 6, 2022.

Participants included principal investigators of China’s National Key Technology Research and Development Program, representatives of Chinese agricultural universities, CIMMYT scientists and representatives from a variety of international organizations. The agenda featured discussions regarding research priorities, efforts to establish best practices in classifying and prioritizing climate risks and identifying potential crucial points for future cooperation between CIMMYT and China.

After the welcome address from Wheat Breeder and Country Representative for China Zhongzhu He, Thomas Lumpkin, CIMMYT Director General Emeritus provided the introduction to global climate issues and their effects on agriculture, particularly staple crops like wheat.

“All climate change mitigation strategies must account for their effect on food production systems, the aim of this convening was to facilitate discussions among climate change scientists, crop breeders and agronomists,” said Lumpkin. “Global issues require global solutions and so collaboration among institutions is pivotal.”

Tek Sapkota, CIMMYT Agricultural Systems and Climate Change Scientist, presented a framework for quantifying GHG emissions and mitigation potential for food systems, key research objectives of the One CGIAR initiative MITIGATE+, an initiative aimed to reduce annual global food systems emissions by 7% by 2030.

Three other CIMMYT scientists presented at the workshop. Wei Xiong, Senior Scientist, Crop Modeler, focused on genotype-environment interactions and its implication on breeding. Urs Schulthess, Remote Sensing Scientist, presented state-of-the-art results on the effects of temperature and vapor pressure deficit on radiation use efficiency of wheat. Huihui Li, Scientist, Quantitative Geneticist, discussed expanding genome wide association mapping and genomic selection to include climatic factors, highlighting novel methods to bring genes and climate together to accelerate breeding cycles.

In the workshop’s closing remarks, Wei reiterated CIMMYT’s commitments to continued collaboration with Chinese institutions and outlined next steps, such as CIMMYT’s commitment to increasing global agricultural resilience via novel research, partnerships, and increased engagement. Wei also detailed methods to identify new mechanisms and funding channels to promote global cooperation, such as One CGIAR initiatives and funding from national partners, including the CAAS.

CIMMYT leads innovation sprint to deliver results to farmers rapidly

Written by Sarah McLaughlin on . 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)

CIMMYT and China: A successful partnership since 1974

Written by Mike Listman on . 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)

Forging collaborative ties from south to south

Written by Andrea Carvajal on . Posted in News.

He Zhonghu presents at the Second International Wheat Congress in Beijing. (Photo: Fei Wei/CAAS)

More than 900 experts from 67 countries gathered for the Second International Wheat Congress, which took place from September 12-16 in-person in Beijing and online, to exchange ideas on how to improve the development of the wheat industry around the world, and call for increased global cooperation in the scientific and technological innovation of wheat to guarantee food security.

The International Maize and Wheat Improvement Center (CIMMYT) was honored to be one of the three organizers of this major world-class event, together with the Crop Science Society of China (CSSC) and the Institute of Crop Sciences of the Chinese Academy of Agricultural Sciences (ICS-CAAS).

This Congress as part of Wheat Initiative activity was established three years ago after the merger of two important conferences: the International Wheat Genetics Symposium and the International Wheat Conference. On this occasion, with Future Wheat: Resilience and Sustainability as the central theme, key issues included: use of diversity; evolution and germplasm; Triticeae genome structure and functional genomics; breeding and new technologies; crop management under climate change; biotic and abiotic resistance and physiology; and processing quality, nutrition, and human health.

In her capacity as co-host of the congress, Claudia Sadoff, CGIAR Executive Managing Director, stressed that the global partnership between China and CGIAR has been of special importance in strengthening achievements in scientific research.

“The priority is to increase grain yields, disease resistance, climate resilience, and nutritional quality through breeding modernization,” said Sadoff. “This is especially important as we are facing a food system crisis, with wheat at its heart. The global food crisis requires a system approach to stabilize wheat supply.”

Bram Govaerts, Director General of CIMMYT, reiterated this point, indicating that “meetings like this can be source of concrete proposals for consolidating enabling partnerships that will lead to the enduring transformation of wheat based agri-food systems worldwide”.

What’s next for global wheat?

Asking what’s next is a disturbing question when faced with a crop like wheat that is an important commodity for more than 35% of the world’s population, with global production exceeding 760 million tons in 2020. The same question that Alison Bentley, Director of CIMMYT’s Global Wheat Program, seeks to respond to build future resilience.

“It is important that we understand where the risks are in our global food system so that we can respond to and address the impacts,” Bentley explained, while presenting a roadmap for future wheat research and development, where food security and nutrition plays a decisive role taking in consideration the effects of climate change and population growth.

Zhonghu He, CIMMYT Distinguished Scientist and Country Representative for China, said, “Thanks to the fact that this Congress was a hybrid event, there was a large online participation of researchers, students and representatives of entities from developing countries – a fact that reiterates the importance of the work that we have been doing together and can promote even further in the face of the challenges that we face today in terms of conflict, high cost of living, climate change and COVID-19.”

More than 900 experts from 67 countries united to discuss improved collaboration in wheat research and development. (Photo: Fei Wei/CAAS)

China and CIMMYT

China and CIMMYT have worked side-by-side on wheat and maize research for the past 40 years in areas such as varietal breeding, genomics research, sustainable farming systems, and training. China is the largest wheat producer and consumer in the world, and China has always considered CIMMYT as a strategic win-win partner for wheat research.

These four decades of work are reflected in results, such as the fact that more than 26,000 accessions of wheat preserved in CIMMYT’s genebank were introduced and are stored in China. This has enabled collaborative research on this cereal to add up to 10.7 million tons of grain, worth $3.4 billion USD. It has also enabled more than 200 Chinese scientists and students working in wheat to visit CIMMYT®s global headquarters in Mexico to receive training courses and complete thesis research.

In recognition of the partnership between China and CIMMYT, six wheat varieties derived from CIMMYT germplasm received national awards in China and seven scientists were awarded the China Friendship Award, the highest recognition of international scientists for their contribution to China. In 2016, CIMMYT received the International Science and Technology Cooperation Award from China State Council.

The 3rd International Wheat Congress will be held in Australia in 2024.

A Chinese Wheat Breeder’s International Vision

Written by Sarah McLaughlin on . Posted in In the media.

China is the largest global producer and consumer of wheat. The country’s breeders are developing high quality, high yield varieties, with resistance to the droughts and crop blights that have increased in frequency and spread due to climate change.

He Zhonghu, a research fellow with the Institute of Crop Sciences under the Chinese Academy of Agricultural Sciences (CAAS), is passionate about the power of international exchanges and cooperation for fueling agricultural development.

He is also director of the China office for the International Maize and Wheat Improvement Center (CIMMYT), introducing 20,000 samples of wheat seed sources to more than 25 institutions and contributing to the breeding of more than 80 new varieties.

Read more: A Chinese Wheat Breeder’s International Vision

China calls on G20 to support CGIAR to boost global food security

Written by Sarah McLaughlin on . Posted in News.

Representatives from the G20 Foreign Ministers’ meeting on July 7-8. (Credit: Antara Foto/Pool/Sigid Kurniawan/rwa.)

The G20 Foreign Ministers’ meeting held on July 7-8 in Bali saw Chinese State Councillor and Foreign Minister, Wang Yi, highlight support for CGIAR as part of a proposed cooperation initiative to boost global food security.

Foreign Minister Wang Yi highlighted the need to help CGIAR increase innovation and build cooperation on agricultural science and technology among countries. Addressing the meeting, Wang said the food and energy sectors are crucial for the healthy performance of the world economy and the effective implementation of the UN 2030 Agenda for Sustainable Development. 

His statement was made shortly before the signing of Letters of Intent for Cooperation between the Chinese Academy of Agricultural Sciences (CAAS) and two CGIAR Research Centers, the International Maize and Wheat Improvement Center (CIMMYT) and the International Rice Research Institute (IRRI).  

CIMMYT, IRRI and CAAS intend to establish a joint Center in Hainan to address global food security through advances in wheat and rice breeding. The collaboration aims to enhance the environmental sustainability of rice and wheat based agri-food systems, promote biodiversity conservation, combat climate change, and improve the health and welfare of growers and consumers. 

Jean BaliĂ©, Regional Director, South East Asia and Pacific, CGIAR, and Director General of IRRI said: “Our new agreement solidifies and updates a longstanding and fruitful partnership. Today we face a different and growing set of challenges to our food, land and water systems, and we welcome the opportunity to strengthen knowledge and information exchange from across CGIAR that will contribute to a transformation of global food, land and water systems.” 

CIMMYT Director General, Bram Govaerts added: “This state-of-the-art breeding center will help us develop and deploy the new nutritious, high-yielding and resilient varieties that Asian farmers need to feed and nurture the most populous region of the world sustainably or within planetary boundaries.” 

In three decades of collaboration, CAAS and CGIAR have cooperated on germplasm exchange, breeding new varieties of crops, and providing opportunities for staff collaboration, development and training. 

In wheat research, the partnership has added as much as 10.7 million tons of grain – worth $3.4 billion – to China’s national wheat output. Additionally, eight CIMMYT scientists have won the Chinese Friendship Award – the highest award for foreign experts who have made outstanding contributions to China’s economic and social progress. 

A reaffirmation of Chinese support for CGIAR comes on a tide of growing recognition that more investment is needed to tackle hunger.  

Earlier in the year the G7 Foreign Ministers’ Communiqué underlined the urgent need to address risk in global food systems citing this as a top foreign policy objective. At the same time, the G7 Agricultural Ministers Communiqué cautioned that slowing down work to address longer term goals of food systems transformation, in order to address short term food crises, will have negative consequences in the medium and long term. In this context CGIAR’s System Board Chair, Marco Ferroni, recently highlighted the need for world leaders to look at the big picture to solve the food crisis.

Xinhua News

China to build international agricultural breeding center in Hainan

Written by Sarah McLaughlin on . Posted in In the media.

The Chinese Academy of Agricultural Sciences (CAAS), the International Maize and Wheat Improvement Center (CIMMYT) and the International Rice Research Institute (IRRI) are establishing a breeding center in Sanya, Hainan Province, China.

The international cooperation will be conducive to the exploration and utilization of germplasm resources of the research organizations, biological breeding research, technical training, and the innovation of the global seed industry.

Read more: https://english.news.cn/20220714/df773960de9f42ba898341e27cdb3f09/c.html

Zhuang Qiaosheng (center) receives CIMMYT delegations in Beijing in 1997. (Photo: CIMMYT)

In memory of Zhuang Qiaosheng

Written by Rodrigo Ordóñez on . Posted in News.

Zhuang Qiaosheng (center) receives CIMMYT delegations in Beijing in 1997. (Photo: CIMMYT)
Zhuang Qiaosheng (center) receives CIMMYT delegations in Beijing in 1997. (Photo: CIMMYT)

Zhuang Qiaosheng passed away in Beijing on May 8, 2022, at the age of 105. He was the most celebrated wheat breeder in China and enjoyed a high reputation in the international community.

As a leader of Wheat Breeding Program at Chinese Academy of Agricultural Sciences (CAAS), Zhuang developed 20 high-yielding and disease-resistant winter wheat varieties from 1947 to 1995, with a total planting area of 28 million hectares in achieving notable yield increase.

Zhuang served as a member of the Board of Trustees of the International Maize and Wheat Improvement Center (CIMMYT) from 1984 to 1987. He made great contributions to the collaboration between CIMMYT and China, including the opening of the CIMMYT office in China and the establishment of a shuttle breeding project for improving scab resistance.

Zhuang Qiaosheng (center) with Sanjaya Rajaram (left) and Tom Lumpkin in Beijing in 2017. (Photo: CIMMYT)
Zhuang Qiaosheng (center) with Sanjaya Rajaram (left) and Tom Lumpkin in Beijing in 2017. (Photo: CIMMYT)

He did everything possible to enlarge CIMMYT activities in China before fully retiring in 2015.

He was a close friend to many CIMMYT staff, including the late distinguished scientist Sanjaya Rajaram. He also strongly recommended He Zhonghu, distinguished scientist and CIMMYT Country Representative for China, to work at CIMMYT as a postdoctoral fellow in 1990.

The CIMMYT community sends its deepest condolences to the Zhuang family.

Wheat fields at CIMMYT’s experimental station in Ciudad Obregón, Sonora state, Mexico. Photo: M. Ellis/CIMMYT.

Climate change slows wheat breeding progress for yield and wide adaptation, new study finds

Written by Mike Listman on . Posted in Features.

Nearly four decades of repeated crossing and selection for heat and drought tolerance have greatly improved the climate resilience of modern wheat varieties, according to new research emerging from a cross-continental science collaboration.

At the same time, climate change has likely slowed breeding progress for high-yielding, broadly adapted wheat, according to the new study, published recently in Nature Plants.

“Breeders are usually optimistic, overlooking many climate change factors when selecting,” said Matthew Reynolds, wheat physiologist at the International Maize and Wheat Improvement Center (CIMMYT) and co-author of the publication. “Our findings undermine this optimism and show that the amplified interaction of wheat lines with the environment due to climate change has made it harder for breeders to identify outstanding, broadly adapted lines.”

What do 10 million data points tell scientists?

Each year for nearly half a century, wheat breeders taking part in the CIMMYT-led International Wheat Improvement Network (IWIN) have tested approximately 1,000 new, experimental wheat lines and varieties at some 700 field sites in over 90 countries.

Promising lines are taken up by wheat breeding programs worldwide, while data from the trials is used to guide global breeding and other critical wheat research, explained Wei Xiong, CIMMYT crop modeler/physiologist based in China and lead author of the new paper.

“To date, this global testing network has collected over 10 million data points, while delivering wheat germplasm estimated to be worth several billion dollars annually in extra productivity to hundreds of millions of farmers in less developed countries,” Xiong said.

Xiong and his colleagues analyzed “crossover interactions” — changes in the relative rankings of pairs of wheat lines — in 38 years of data from four kinds of wheat breeding trials, looking for the extent to which climate change or breeding progress have flipped those rankings. Two of the trials whose data they examined focused on yield in bread wheat and durum wheat, while the other two assessed wheat lines’ performance under high temperatures and in semi-arid environments, respectively.

In addition to raising yields, wheat breeders are endowing the crop with added resilience for rising temperatures.

“We found that warmer and more erratic climates since the 1980s have increased ranking changes in global wheat breeding by as much as 15 percent,” Xiong said. “This has made it harder for breeders to identify superior, broadly adapted lines and even led to scientists discarding potentially useful lines.”

Conversely, wheat cultivars emerging from breeding for tolerance to environmental stresses, particularly heat, are showing substantially more stable yields across a range of environments and fostering wheat’s adaptation to current, warmer climates, while opening opportunities for larger and faster genetic gains in the future, according to the study.

Past research has shown that modern wheat varieties not only increase maximum yields but also guarantee more reliable yields, a benefit that adds millions of dollars each year to farm income in developing countries and greatly reduces farmers’ risk.

“Among other things, our findings argue for more targeted wheat breeding and testing to address rapidly shifting and unpredictable farming conditions,” Reynolds added.

Read the full study:
Increased ranking change in wheat breeding under climate change

Cover photo: Wheat fields at CIMMYT’s experimental station in Ciudad Obregón, Sonora state, Mexico. Photo: M. Ellis/CIMMYT.