Location: Pakistan

For more information, contact CIMMYT’s Pakistan office.

Staple commodities: Country can save $1.3bn annually by developing efficient storage system

Written by Sarah McLaughlin on February 2, 2023. Posted in In the media.

Farmers in Pakistan could save up to $1.3 billion each year in post-harvest losses with the development of an efficient storage system.

Research shows that inefficient storage is the main cause of staple commodity losses in the country. Despite producing 27 million tons of wheat annually worth $7.4 billion, there is less than 6 million tons of storage capacity available; around 10% of the surplus wheat is lost at a value of $740 million due to the use of unregulated conditions.

With the ability to store their commodity for an extra two or three months, farmers can increase their income by between 20 to 40 percent. Preserving the crops that have already been produced will also pass on a saving of between 15 to 20 percent to end consumers.

Hermetic technology developed by the International Maize and Wheat Improvement Center (CIMMYT), the International Rice Research Institute (IRRI) and the University of Hohenheim offers a potential storage solution by protecting the commodity from the ambient environment.

Read the original article: Staple commodities: Country can save $1.3bn annually by developing efficient storage system

CIMMYT leads innovation sprint to deliver results to farmers rapidly

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

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

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

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

Nitrogen in China

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

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

Triple wins in Kenya

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

Agricultural innovations in Pakistan

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

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

Policies and partnerships for innovations in soil fertility management in Nepal

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

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

Public-private partnerships accelerate access to innovations in South Asia

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

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

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

Sustainable agriculture in Zambia

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

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

CIMMYT and Join Hope sign partnership agreement

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

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

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

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

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

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

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

Expanding BISA expertise to new horizons in South Asia

Written by Richa Sharma Puri on October 5, 2022. Posted in Features.

Ten years ago, a foundation was laid on the principles of Norman Borlaug to translate agrarian challenges into opportunities through collaboration between the International Maize and Wheat Improvement Centre (CIMMYT) and the Indian Council of Agricultural Research (ICAR). This major step toward sustainable food and nutrition security was taken through the establishment of the Borlaug Institute for South Asia (BISA) as an independent, non-profit research organization.

Today, BISA is a global name in agriculture research with a vision to promote food security, nutrition, stable livelihoods, and eco-friendly practices in South Asia. Given the prominent challenges of climate change in these economically fragile agroecosystems, the partnership between BISA, ICAR, and CIMMYT plays a pivotal role in developing improved wheat and maize varieties with climate-smart and conservation agriculture-based practices.

A decade of impact

One of the most significant outcomes of BISA’s work has been its contribution to building a vast, solid network for evaluating and disseminating new high-yielding and climate-resilient wheat varieties for India and other South Asian countries in close partnership with ICAR and CIMMYT. BISA’s transformative solutions and science-led research are critical to targeting stressed resources and attaining global food security.

With support from ICAR and CIMMYT, BISA has developed state-of-the-art research facilities at its three strategically selected research stations, having 1,200 acres of land that the Government of India, jointly with the respective state governments, generously granted to the project. Located in three disparate agro-climatic and socioeconomic environments, these sites are model research farms supporting agriculture research in South Asia. The learning labs at BISA emphasize that scaling climate-smart villages also strengthen climate-resilient agriculture, primarily through addressing challenges such as residue burning. BISA’s collaborative and inclusive approach is more relevant today when the world is grappling with various food and nutrition insecurity challenges.

Time for expansion

BISA envisages attracting countries from south Asia, the Bay of Bengal Initiative for Multi-Sectoral Technical and Economic Cooperation (BIMSTEC) and the South Asian Association for Regional Cooperation (SAARC), as well as National Agricultural Research Systems (NARS), national research institutes, private sector companies, and civil society organizations as active partners for expanding reach in the region. To this end, BISA has completed extensive work in Nepal and Bangladesh and has extended its services to Bhutan and Sri Lanka.

Still, more needs to be done in South Asian countries. Therefore, there is an urgent need for a strong commitment to harnessing the best of international scientific discoveries with local efforts. Collective action is to be garnered to provide trusted and effective mechanisms for developing and sharing cutting-edge agricultural technologies in the South Asian region.

Himanshu Pathak, Director General of ICAR, with Bram Govaerts, Director General of CIMMYT, discuss how BISA’s work can create food security in South Asia. (Photo: BISA)

To this end, a BISA High-Level Meeting was organized on September 1 and 2 in Delhi, with senior government representatives from the NARS in Bhutan, Sri Lanka, Pakistan, Nepal, Bangladesh, and India. The meeting provided a forum to identify opportunities to co-create and deploy innovative, multidisciplinary solutions to effectively address the transboundary challenges related to food, nutrition, and environmental security faced by farming communities in South Asia. This platform strives to unite the scientific community and thought leaders to support research and development across the agriculture domain.

Delegates from these countries felt that there is a need for a robust program of germplasm exchange within the region, which is essential to strengthening agriculture’s resilience. All countries expressed a significant need to raise their capacity of young researchers in advanced research techniques related to genomics, phenotyping, climate-smart agriculture, precision agriculture, and digital technologies. Delegates also discussed BISA’s role as a research and innovation regional catalyst, innovation hub, and integrated research platform to build resilient agrifood systems and achieve long-term sustainability and resilience for food security in South Asia.

BISA’s farm-ready research, from setting up climate-resilient villages and developing viable alternatives to rice residue burning to facilitating an open exchange of elite germplasm and cutting-edge technologies, reflects not only the vision of CIMMYT but also the philosophy of our mutual inspiration, Borlaug, who believed strongly in sharing knowledge and “taking it to the farmer”.

Cover photo: Delegates from Bhutan, Sri Lanka, Nepal, Pakistan, Bangladesh, and India meet to deliberate on the significant issues in South Asia’s agriculture sector. (Photo: BISA)

After the flood

Written by Sarah McLaughlin on September 22, 2022. Posted in Publications.

Heavy summer rains have led to severe floods in Pakistan, affecting over 800,000 hectares of land. Rural areas in the southern coastal provinces have been hardest hit with water levels remaining high throughout the Indus River system. This compounds the existing inequalities in livelihoods and represents significant humanitarian as well as agricultural impacts.

Due to flood damage, the estimated direct crop loss by economists stands at around $2.3 billion. Reports indicate that over 32 million people have been displaced by the flooding and urgent humanitarian needs include access to food, water, shelter, and public health.

The International Maize and Wheat Improvement Center (CIMMYT) strongly encourages enhanced investment in ensuring that our agricultural systems can adapt to as well as mitigate climate change impacts. In the current context, the development and distribution of improved wheat seed must be seen as a central pillar of flood response to secure wheat-dependent livelihoods.

No single drop, be it geo-political or climatic, will tip the balance on our global food system. But we must be increasingly aware of the compounding and amplifying effects of each crisis and develop strategies towards more sustainable agri-food systems.

Read the full study: One drop at a time: recent heavy rain has led to flooding in Pakistan, devastating agricultural land, and rural communities

Cover photo: Current areas of cropland and flood-affected crop land in Pakistan. This highlights the significant impacts of the flood waters, particularly on cropland in southern parts of the country. The boundaries shown on this map do not imply official endorsement or acceptance.

Can agriculture bring South Asian countries together?

Written by Richa Sharma Puri on September 15, 2022. Posted in Features.

Agriculture is central to South Asian economies, lives and livelihoods. However, the challenges of an increasing population and brisk economic growth are straining the agriculture sector as it struggles to meet the present and future demand for food, nutritional security, and economic development. Not only this, the three Cs – COVID, climate change and conflict – are fueling the growing fragility in food systems across the world.

To address these issues and find potential solutions, the Borlaug Institute for South Asia (BISA) organized a high-level meeting with top agriculture ministry officials from its neighboring countries – Sri Lanka, Nepal, Bangladesh, Bhutan, India and Pakistan – to collaborate and learn from each other.

BISA’s outreach to India’s neighbors in South Asia has already produced results. Data from the BISA farm in Ludhiana, India, on resistance to yellow rust that affects wheat crop has been used in Nepal, Afghanistan, and Pakistan. Genomic prediction evaluation for grain yield and other traits worked on at BISA through the help of the Global Wheat Program of the International Maize and Wheat Improvement Center (CIMMYT) has been extended to Pakistan, Bangladesh, and Nepal since 2020. Regular training is organized for students, scientists and farmers in India on breeding and climate resistant technologies, and BISA scientists organize courses in Nepal on climate-smart technologies.

Read more in Amar Ujala (published in Hindi): Can agriculture bring South Asian countries together?

Cover photo: Tara Miah (50) is a farmer from Rajguru in Rahamanbari union, Barisal, Bangladesh. He used seeder fertilizer drills to plant wheat on his fields. Previously, this was done manually. SFD has resulted in a better harvest for Miah. (Credit: Ranak Martin)

Galvanizing food systems transformation in South Asia

Written by Sarah McLaughlin on September 14, 2022. Posted in News.

Solar Powered Irrigation System in Bihar, India. (Credit: Ayush Manik)

In the race to make food production and consumption more sustainable, South Asia is key.

Home to one quarter of humanity — one-fifth of whom are youth — the region has the world’s largest concentration of poverty and malnutrition. While South Asia produces one quarter of the world’s consumed food, its agrifood systems today face formidable poverty reduction, climate change adaptation and mitigation, environmental health, and biodiversity challenges. Significant hurdles remain to secure an adequate and affordable supply of diverse foods necessary for sustainable and healthy diets.

South Asia’s predominantly rice-based farming systems are crucial to food security and political and economic stability, but parts of this region are threatened by unsustainable groundwater withdrawal — the region extracts one-quarter of global groundwater — due to food and energy policy distortions. South Asia’s farmers are both contributors to and victims of climate change and extreme weather that disproportionately affect resource-poor and women farmers.

The region needs food systems that generate profits and incentivize farmers to produce nutritious foods, while also reducing prices for consumers purchasing healthy products by shortening and reducing inefficiencies within value chains. A new CGIAR Research Initiative, Transforming Agrifood Systems in South Asia (TAFSSA), aims to address challenges.

Read the full article: Galvanizing Food Systems Transformation in South Asia

CGIAR Initiative: Transforming Agrifood Systems in South Asia (TAFSSA)

Written by Sarah McLaughlin on August 24, 2022. Posted in Uncategorized.

Working across South Asia, the Transforming Agrifood Systems in South Asia (TAFSSA) Initiative will deliver a coordinated program of research and engagement across the food production to consumption continuum to improve equitable access to sustainable healthy diets, improve farmer livelihoods and resilience, and conserve land, air, and groundwater resources.

TAFSSA aims to propel evidence into impact through engagement with public and private partners across the production-to-consumption continuum, to achieve productive, environmentally-sound South Asian agrifood systems that support equitable access to sustainable healthy diets.

This objective will be achieved through:

Facilitating agrifood systems transformation through inclusive learning platforms, public data systems and partnerships: building new and enhancing existing learning platforms; improving the evidence base; increasing quality data availability and accessibility; and demonstrating the value of integrated agrifood systems datasets.
Transforming agroecosystems and rural economies to boost income, generate jobs and support diversified food production within environmental boundaries: generating linkages between farmers, landscapes and markets to diversify agricultural production, increase farmers’ incomes and foster rural entrepreneurship within environmental boundaries.
Improving access to and affordability of sustainably produced healthy foods through evidence and actions across the food system: creating favorable environments for diversification; improving access to inputs for and marketability of sustainable nutritious food; and improving access to healthy food for the poor through changes in food retail environments.
Understanding behavioral and structural determinants of sustainable healthy diets: studying dietary practices of food consumers; identifying determinants of food choices; and testing innovations to support consumption of sustainable healthy diets.
Building resilience and mitigating environmental impact: examining how South Asia can produce healthy diets within an environmentally safe and socially equitable operating space, and in consideration of ongoing climate change and farmers’ resilience to shocks.

2022 Excellence in International Service Award

Written by Sarah McLaughlin on June 13, 2022. Posted in News.

Scientist Pablo D Olivera Firpo has been awarded the Excellence in International Service Award by Advancing the Science of Plant Pathology (APS) for outstanding contributions to plant pathology by APS members for countries other than their own.

Firpo was born in Montevideo, Uruguay, where he received a BSc degree as an agronomy engineer in 1997 from the University of the Republic, College of Agronomy. His PhD degree in 2008 was from the Department of Plant Pathology at the University of Minnesota (UMN). He began his career as a postdoctoral research associate with the Department of Plant Pathology and the USDA-ARS Cereal Disease Lab, and then became a research assistant professor in the Department of Plant Pathology at UMN in 2017.

Firpo has been a vital member in the global cereal rust pathology community and contributed substantially to the fight against Ug99 and other virulent wheat stem rust races that have re-emerged around the world and pose serious threats to food security. Firpo’s contributions are not only within the realm of research of great impact, but also include training 79 scientists and facilitating the establishment of a world-class research group in Ethiopia. He has worked to improve international germplasm screening in Ethiopia. As a postdoctoral research associate, Firpo’s first assignment was to search for new sources of resistance to Ug99 in durum wheat, used for pasta, and related tetraploid wheat lines. That project took him to Ethiopia, where an international Ug99-screening nursery for durum wheat was established at Debre Zeit Research Center. He worked closely with researchers from the Ethiopian Institute of Agricultural Research (EIAR) and the International Maize and Wheat Research Center (CIMMYT) to improve the methodologies for screening and to provide hands-on training to researchers managing the international screening nursery. During a period of 10 years (from 2009 to 2019), he traveled to Ethiopia 21 times to evaluate stem rust reactions of US and international durum wheat germplasm and completed the screening of the entire durum collection (more than 8,000 accessions) from the USDA National Small Grains Collection.

Firpo’s research on sources and genetics of stem rust resistance led to discoveries of valuable genetic resistance in durum and other relatives of wheat. These sources of resistance have provided the needed diversity to ensure the development and sustainability of durable stem rust resistance.

With frequent epidemics and severe yield losses caused by stem rust in eastern Africa, establishing a functional rust pathology laboratory to support international screening, as well as to monitor and detect new virulences in the pathogen population, became a high priority for the international wheat research community. Utilizing the onground opportunities in Ethiopia, Firpo and his colleagues at the CDL and UMN enthusiastically participated in building up the rust pathology lab at the Ambo Plant Protection Center of EIAR. Firpo traveled to Ambo 11 times to provide hands-on training to staff and to develop cereal rust protocols to suit local conditions. He worked closely with colleagues at CDL, EIAR, and CIMMYT to secure and upgrade facilities, equipment and supplies to a standard that ensures reliable rust work will be carried out. As a result, the rust pathology lab at the Ambo Center became the only laboratory in eastern Africa, and one of a handful in the world, that can conduct high-quality race analysis of wheat stem rust samples and provide vital and necessary support for breeding global wheat varieties for rust resistance. Currently, the laboratory is playing a critical role in the global surveillance of the stem rust pathogen and supports wheat breeding efforts led by EIAR, CIMMYT, and the USDA.

Firpo has been passionate in supporting capacity building of human resources in Ethiopia and elsewhere. He has been eager to share his knowledge whenever he encounters an opportunity to do so. In addition to the direct training of the staff at the Ambo Center, Firpo accepted invitations to provide training lectures and hands-on field- and greenhouse-based workshops on rust pathology at three research centers in Ethiopia. He prepared training materials, delivered a total of 12 lectures and 10 practical sessions in three Ethiopia national workshops in 2014, 2015, and 2017. These workshops enhanced human resource development and technical capacity in Ethiopia in cereal rust pathology; participants included a total of 64 junior scientists and technical staff from nationwide research centers. Beyond Ethiopia, he was responsible for developing and implementing a six-week training program in cereal rust prevention and control for international scientists. This training program, under the aegis of the Stakman-Borlaug Center for Sustainable Plant Health in the Department of Plant Pathology, University of Minnesota, provided an experiential learning opportunity for international scientists interested in acquiring knowledge and practical skills in all facets of working with cereal rusts. The program trained 15 rust pathologists and wheat scientists from Ethiopia, Kenya, Pakistan, Nepal, Bhutan, Georgia, and Kyrgyzstan, ranging from promising young scientists selected by the USDA as Borlaug Fellows to principal and senior scientists in their respective countries. Many of these trainees have become vital partners in the global surveillance network for cereal rusts.

Working in collaboration with CDL and international scientists, Firpo has been closely involved in global surveillance of the stem rust pathogen, spurred by monitoring the movements of, and detecting, new variants in the Ug99 race group. Since 2009, he and the team at the CDL have analyzed 2,500 stem rust samples from 22 countries, described over 35 new races, and identified significant virulence combinations that overcome stem rust resistance genes widely deployed in global wheat varieties. Among the most significant discoveries were the identification of active sexual populations of the stem rust pathogen in Kazakhstan, Georgia, Germany, and Spain that have unprecedented virulence and genetic diversities. More than 320 new virulent types (or races) were identified from these sexual populations. Evolution in these populations will present continued challenges to wheat breeding. Research in race analysis has provided valuable pathogen isolates that are used to evaluate breeding germplasm to select for resistant wheat varieties and to identify novel sources of stem rust resistance.

A shortage of farm workers is driving the serious consideration by farmers and policymakers to replace traditional, labor-intensive puddled rice cropping (shown here), which leads to sizable methane emissions and profligate use of irrigation water, with the practice of growing rice in non-flooded soils, using conservation agriculture and drip irrigation practices. (Photo: P. Wall/CIMMYT)

A climate-smart remodeling of South Asia’s rice-wheat cropping is urgent

Written by Mike Listman on June 3, 2022. Posted in Publications.

A climate change hotspot region that features both small-scale and intensive farming, South Asia epitomizes the crushing pressure on land and water resources from global agriculture to feed a populous, warming world. Continuous irrigated rice and wheat cropping across northern India, for example, is depleting and degrading soils, draining a major aquifer, and producing a steady draft of greenhouse gases.

Through decades-long Asian and global partnerships, the International Maize and Wheat Improvement Center (CIMMYT) has helped to study and promote resource-conserving, climate-smart solutions for South Asian agriculture. Innovations include more precise and efficient use of water and fertilizer, as well as conservation agriculture, which blends reduced or zero-tillage, use of crop residues or mulches as soil covers, and more diverse intercrops and rotations. Partners are recently exploring regenerative agriculture approaches — a suite of integrated farming and grazing practices to rebuild the organic matter and biodiversity of soils.

Along with their environmental benefits, these practices can significantly reduce farm expenses and maintain or boost crop yields. Their widespread adoption depends in part on enlightened policies and dedicated promotion and testing that directly involves farmers. We highlight below promising findings and policy directions from a collection of recent scientific studies by CIMMYT and partners.

Getting down in the dirt

A recent scientific review examines the potential of a suite of improved practices — reduced or zero-tillage with residue management, use of organic manure, the balanced and integrated application of plant nutrients, land levelling, and precise water and pest control — to capture and hold carbon in soils on smallholder farms in South Asia. Results show a potential 36% increase in organic carbon in upper soil layers, amounting to some 18 tons of carbon per hectare of land and, across crops and environments, potentially cutting methane emissions by 12%. Policies and programs are needed to encourage farmers to adopt such practices.

Another study on soil quality in India’s extensive breadbasket region found that conservation agriculture practices raised per-hectare wheat yields by nearly half a ton and soil quality indexes nearly a third, over those for conventional practices, as well as reducing greenhouse gas emissions by more than 60%.

Ten years of research in the Indo-Gangetic Plains involving rice-wheat-mungbean or maize-wheat-mungbean rotations with flooded versus subsoil drip irrigation showed an absence of earthworms — major contributors to soil health — in soils under farmers’ typical practices. However, large earthworm populations were present and active under climate-smart practices, leading to improved soil carbon sequestration, soil quality, and the availability of nutrients for plants.

The field of farmer Ram Shubagh Chaudhary, Pokhar Binda village, Maharajganj district, Uttar Pradesh, India, who has been testing zero tillage to sow wheat directly into the unplowed paddies and leaving crop residues, after rice harvest. Chaudhary is one of many farmer-partners in the Cereal Systems Initiative for South Asia (CSISA), led by CIMMYT. (Photo: P. Kosina/CIMMYT)

Rebooting marginal farms by design

Using the FarmDESIGN model to assess the realities of small-scale, marginal farmers in northwestern India (about 67% of the population) and redesign their current practices to boost farm profits, soil organic matter, and nutritional yields while reducing pesticide use, an international team of agricultural scientists demonstrated that integrating innovative cropping systems could help to improve farm performance and household livelihoods.

More than 19 gigatons of groundwater is extracted each year in northern India, much of this to flood the region’s puddled, transplanted rice crops. A recent experiment calibrated and validated the HYDRUS-2D model to simulate water dynamics for puddled rice and for rice sown in non-flooded soil using zero-tillage and watered with sub-surface drip irrigation. It was found that the yield of rice grown using the conservation agriculture practices and sub-surface drip irrigation was comparable to that of puddled, transplanted rice but required only half the irrigation water. Sub-surface drip irrigation also curtailed water losses from evapotranspiration and deep drainage, meaning this innovation coupled with conservation agriculture offers an ecologically viable alternative for sustainable rice production.

Given that yield gains through use of conservation agriculture in northern India are widespread but generally low, a nine-year study of rice-wheat cropping in the eastern Indo-Gangetic Plains applying the Environmental Policy Climate (EPIC) model, in this case combining data from long-term experiments with regionally gridded crop modeling, documented the need to tailor conservation agriculture flexibly to local circumstances, while building farmers’ capacity to test and adapt suitable conservation agriculture practices. The study found that rice-wheat productivity could increase as much as 38% under conservation agriculture, with optimal management.

Key partner organizations in this research include the following: Indian Council of Agricultural Research (ICAR); Central Soil Salinity Research Institute (CSSRI), Indian Agricultural Research Institute (IARI), Indian Institute of Farming Systems Research (IIFSR), Agriculture University, Kota; CCS Haryana Agricultural University, Hisar; Punjab Agricultural University, Ludhiana; Sri Karan Narendra Agriculture University, Jobner, Rajasthan; the Borlaug Institute for South Asia (BISA); the Trust for Advancement of Agricultural Sciences, Cornell University; Damanhour University, Damanhour, Egypt; UM6P, Ben Guerir, Morocco; the University of Aberdeen; the University of California, Davis; Wageningen University & Research; and IFDC.

Generous funding for the work cited comes from the Bill & Melinda Gates Foundation, The CGIAR Research Programs on Wheat Agri-Food Systems (WHEAT) and Climate Change, Agriculture and Food Security (CCAFS), supported by CGIAR Fund Donors and through bilateral funding agreements), The Indian Council of Agricultural Research (ICAR), and USAID.

Cover photo: A shortage of farm workers is driving the serious consideration by farmers and policymakers to replace traditional, labor-intensive puddled rice cropping (shown here), which leads to sizable methane emissions and profligate use of irrigation water, with the practice of growing rice in non-flooded soils, using conservation agriculture and drip irrigation practices. (Photo: P. Wall/CIMMYT)

Nitrogen-Efficient Wheat Production Systems in the Indo-Gangetic Plains through Biological Nitrification Inhibition (BNI) Technology

Written by Bea Ciordia on May 30, 2022. Posted in Uncategorized.

The Nitrogen-Efficient Wheat Production Systems in the Indo-Gangetic Plains through Biological Nitrification Inhibition (BNI) Technology project aims to raise awareness of the benefits of new nitrogen-efficient wheat production systems among stakeholders in India.

By introducing technologies that maintain crop yield and quality, even with a reduced amount of nitrogen fertilizer, this project will also lessen the footprint of food production systems and combat environmental degradation.

Wheat leaves showing symptoms of heat stress. (Photo: CIMMYT)

Wheat versus heat

Written by Rodrigo Ordóñez on May 20, 2022. Posted in Blogs.

Across South Asia, including major wheat-producing regions of India and Pakistan, temperature extremes are threatening wheat production. Heatwaves have been reported throughout the region, with a century record for early onset of extreme heat. Monthly average temperatures across India for March and April 2022 exceeded those recorded over the past 100 years.

Widely recognized as one of the major breadbaskets of the world, the Indo-Gangetic Plains region produces over 100 million tons of wheat annually, from 30 million hectares in Bangladesh, India, Nepal and Pakistan, primarily supporting large domestic demand.

The optimal window for wheat planting is the first half of November. The late onset of the 2021 summer monsoon delayed rice planting and its subsequent harvest in the fall. This had a knock-on effect, delaying wheat planting by one to two weeks and increasing the risk of late season heat stress in March and April. Record-high temperatures over 40⁰C were observed on several days in March 2022 in the Punjabs of India and Pakistan as well as in the state of Haryana, causing wheat to mature about two weeks earlier than usual.

In-season changes and effects

Prior to the onset of extreme heat, the weather in the current season in India was favorable, prompting the Government of India to predict a record-high wheat harvest of 111 million tons. The March heat stress was unexpected and appears to have had a significant effect on the wheat crop, advancing the harvest and likely reducing yields.

Departure of the normalized difference vegetation index (NDVI) during the period from March 22 to April 7 from the average of the previous five years. The NDVI is a measure of the leaf area and the greenness of vegetation. The yellow areas in the Punjabs of India and Pakistan, as well as in the state of Haryana, indicate that wheat matured earlier than normal due to elevated temperatures. Maximum temperatures reached 40⁰C on March 15 and remained at or above this level throughout the wheat harvesting period. (Map: Urs Schulthess/CIMMYT).

In the North-Western Plains, the major wheat basket of India, the area of late-sown wheat is likely to have been most affected even though many varieties carry heat tolerance. Data from CIMMYT’s on-farm experiments show a yield loss between 15 to 20% in that region. The states of Haryana and Punjab together contribute almost 30% of India’s total wheat production and notably contribute over 60% of the government’s buffer stocks. In the North-Eastern Plains, in the states of Bihar and Uttar Pradesh, around 40% of the wheat crop was normal or even early sown, escaping heat damage, whilst the remainder of late-sown wheat is likely to be impacted at a variable level, as most of the crop in this zone matures during the third and fourth week of March.

The Government of India has now revised wheat production estimates, with a reduction of 5.7%, to 105 million tons because of the early onset of summer.

India has reported record yields for the past 5 years, helping it to meet its goal of creating a reserve stock of 40 million tons of wheat after the 2021 harvest. It went into this harvest season with a stock of 19 million tons, and the country is in a good position to face this year’s yield loss.

In Pakistan, using satellite-based crop monitoring systems, the national space agency Space & Upper Atmosphere Research Commission (SPARCO) estimated wheat production reduction close to 10%: 26 million tons, compared to the production target of 29 million tons, for the 2021-22 season.

Rural and farming health impacts

Alongside a direct negative impact on agricultural productivity, the extreme temperatures in South Asia are likely to have negative health implications for the large rural labor force involved in wheat production. There is a growing body of evidence documenting declining health status in the agricultural workforce in areas of frequent temperature extremes. This also adds to the substantial human and environmental health concerns linked to residue burning.

We recommend that systematic research be urgently undertaken to characterize and understand the impacts of elevated temperatures on the health of field-based workers involved in wheat production. This is needed to develop a holistic strategy for adapting our global cropping systems to climate change.

Amplifying wheat supply risks

Combined with the wheat supply and price impacts of the current conflict in Ukraine and trade restrictions on Russian commodities, these further impacts on the global wheat supply are deeply troubling.

India had pledged to provide increased wheat exports to bolster global supplies, but this now looks uncertain given the necessity to safeguard domestic supplies. During the COVID-19 pandemic, the Indian government supported domestic food security by providing free rations — mainly wheat and rice — to 800 million people over several months. This type of support relies on the availability of large buffer stocks which appear stable, but may be reduced if grain production and subsequent procurement levels are lower than desired.

We are already seeing indications of reduced procurement by governments with market prices running higher than usual. However, although the Food Corporation of India has procured 27% less wheat grain in the first 20 days of the wheat procurement season compared to the same period last year, the Government of India is confident about securing sufficient wheat buffer stocks.

As with the COVID-19 pandemic and the war in Ukraine, it is likely that the most marked effects of both climate change and shortages of staple crops will hit the poorest and most vulnerable communities hardest.

A chain reaction of climate impacts

The real impacts of reduced wheat production due to extreme temperatures in South Asia demonstrate the realities of the climate emergency facing wheat and agricultural production. Direct impacts on farming community health must also be considered, as our agricultural workforce is pushed to new physical limits.

Anomalies, which are likely to become the new normal, can set off a chain reaction as seen here: the late onset of the summer monsoon caused delays in the sowing of rice and the subsequent wheat crop. The delayed wheat crop was hit by the unprecedented heatwave in mid- to late March at a relatively earlier stage, thus causing even more damage.

Preparing for wheat production tipping points

Urgent action is required to develop applied mitigation and adaptation strategies, as well as to plan for transition and tipping points when key staple crops such as wheat can no longer be grown in traditional production regions.

A strategic design process is needed, supported by crop and climate models, to develop and test packages of applied solutions for near-future climate changes. On-farm evidence from many farmers’ fields in Northwestern India indicates that bundled solutions — no-till direct seeding with surface retention of crop residues coupled with early seeding of adapted varieties of wheat with juvenile heat tolerance — can help to buffer terminal heat stress and limit yield losses.

Last but not least, breeding wheat for high-temperature tolerance will continue to be crucial for securing production. Strategic planning needs to also encompass the associated social, market and political elements which underpin equitable food supply and stability.

Download the pre-print:
Wheat vs. Heat: Current temperature extremes threaten wheat production in South Asia

Bringing wild wheat’s untapped diversity into elite lines

Written by Rodrigo Ordóñez on November 23, 2021. Posted in Features.

A collaboration involving 15 international institutes across eight countries has optimized efforts to introduce beneficial traits from wild wheat accessions in genebanks into existing wheat varieties.

The findings, published in Nature Food, extend many potential benefits to national breeding programs, including improved wheat varieties better equipped to thrive in changing environmental conditions. This research was led by Sukhwinder Singh of the International Maize and Wheat Improvement Center (CIMMYT) as part of the Seeds of Discovery project.

Since the advent of modern crop improvement practices, there has been a bottleneck of genetic diversity, because many national wheat breeding programs use the same varieties in their crossing program as their “elite” source. This practice decreases genetic diversity, putting more areas of wheat at risk to pathogens and environmental stressors, now being exacerbated by a changing climate. As the global population grows, shocks to the world’s wheat supply result in more widespread dire consequences.

The research team hypothesized that many wheat accessions in genebanks — groups of related plant material from a single species collected at one time from a specific location — feature useful traits for national breeding programs to employ in their efforts to diversify their breeding programs.

“Genebanks hold many diverse accessions of wheat landraces and wild species with beneficial traits, but until recently the entire scope of diversity has never been explored and thousands of accessions have been sitting on the shelves. Our research targets beneficial traits in these varieties through genome mapping and then we can deliver them to breeding programs around the world,” Singh said.

Currently adopted approaches to introduce external beneficial genes into breeding programs’ elite cultivars take a substantial amount of time and money. “Breeding wheat from a national perspective is a race against pathogens and other abiotic threats,” said Deepmala Sehgal, co-author and wheat geneticist in the Global Wheat program at CIMMYT. “Any decrease in the time to test and release a variety has a huge positive impact on breeding programs.”

Deepmala Sehgal shows LTP lines currently being used in CIMMYT trait pipelines at the experimental station in Toluca, Mexico, for introgression of novel exotic-specific alleles into newly developed lines. (Photo: CIMMYT)

Taking into genetic biodiversity

The findings build from research undertaken through the Seeds of Discovery project, which genetically characterized nearly 80,000 samples of wheat from the seed banks of CIMMYT and the International Center for Agricultural Research in the Dry Areas (ICARDA).

First, the team undertook a large meta-survey of genetic resources from wild wheat varieties held in genebanks to create a catalog of improved traits.

“Our genetic mapping,” Singh said, “identifies beneficial traits so breeding programs don’t have to go looking through the proverbial needle in the haystack. Because of the collaborative effort of the research team, we could examine a far greater number of genomes than a single breeding program could.”

Next, the team developed a strategic three-way crossing method among 366 genebank accessions and the best historical elite varieties to reduce the time between the original introduction and deployment of an improved variety.

Sukhwinder Singh (second from left) selects best performing pre-breeding lines in India. (Photo: CIMMYT)

Worldwide impact

National breeding programs can use the diverse array of germplasm for making new crosses or can evaluate the germplasm in yield trials in their own environments.

The diverse new germplasm is being tested in major wheat producing areas, including India, Kenya, Mexico and Pakistan. In Mexico, many of the lines showed increased resistance to abiotic stresses; many lines tested in Pakistan exhibited increased disease resistance; and in India, many tested lines are now part of the national cultivar release system. Overall, national breeding programs have adopted 95 lines for their targeted breeding programs and seven lines are currently undergoing varietal trials.

“This is the first effort of its kind where large-scale pre-breeding efforts have not only enhanced the understanding of exotic genome footprints in bread wheat but also provided practical solutions to breeders,” Sehgal said. “This work has also delivered pre-breeding lines to trait pipelines within national breeding programs.”

Currently, many of these lines are being used in trait pipelines at CIMMYT to introduce these novel genomic regions into advanced elite lines. Researchers are collaborating with physiologists in CIMMYT’s global wheat program to dissect any underlying physiological mechanisms associated with the research team’s findings.

“Our investigation is a major leap forward in bringing genebank variation to the national breeding programs,” Singh explained. “Most significantly, this study sheds light on the importance of international collaborations to bring out successful products and new methods and knowledge to identify useful contributions of exotic in elite lines.”

Read the full article:
Direct introgression of untapped diversity into elite wheat lines

Cover photo: A researcher holds a plant of Aegilops neglecta, a wild wheat relative. Approximately every 20 years, CIMMYT regenerates wheat wild relatives in greenhouses, to have enough healthy and viable seed for distribution when necessary. (Photo: Rocío Quiroz/CIMMYT)

Pakistan, India transboundary dialogue imperative to resolve Lahore’s pollution: Amin

Written by Bea Ciordia on November 21, 2021. Posted in In the media.

During the 26th Conference of Parties (COP26) held in Glasgow, Special Assistant to Pakistan’s Prime Minister on Climate Change Malik Amin Aslam said that a transboundary dialogue on mitigating air pollution was imperative to resolve Lahore’s smog, which is mostly generated by Indian farmers burning crop residues.

In the last four decades, wheat blast has appeared in South America, Asia an Africa. (Video: Alfonso Cortés/CIMMYT)

Taming wheat blast

Written by Rodrigo Ordóñez on October 7, 2021. Posted in Features.

As wheat blast continues to infect crops in countries around the world, researchers are seeking ways to stop its spread. The disease — caused by the Magnaporthe oryzae pathotype Triticum — can dramatically reduce crop yields, and hinder food and economic security in the regions in which it has taken hold.

Researchers from the International Maize and Wheat Improvement Center (CIMMYT) and other international institutions looked into the potential for wheat blast to spread, and surveys existing tactics used to combat it. According to them, a combination of methods — including using and promoting resistant varieties, using fungicides, and deploying strategic agricultural practices — has the best chance to stem the disease.

The disease was originally identified in Brazil in 1985. Since then, it has spread to several other countries in South America, including Argentina, Bolivia and Paraguay. During the 1990s, wheat blast impacted as many as three million hectares in the region. It continues to pose a threat.

Through international grain trade, wheat blast was introduced to Bangladesh in 2016. The disease has impacted around 15,000 hectares of land in the country and reduced average yields by as much as 51% in infected fields.

Because the fungus’ spores can travel on the wind, it could spread to neighboring countries, such as China, India, Nepal and Pakistan — countries in which wheat provides food and jobs for billions of people. The disease can also spread to other locales via international trade, as was the case in Bangladesh.

“The disease, in the first three decades, was spreading slowly, but in the last four or five years its pace has picked up and made two intercontinental jumps,” said Pawan Singh, CIMMYT’s head of wheat pathology, and one of the authors of the recent paper.

In the last four decades, wheat blast has appeared in South America, Asia an Africa. (Video: Alfonso Cortés/CIMMYT)

The good fight

Infected seeds are the most likely vector when it comes to the disease spreading over long distances, like onto other continents. As such, one of the key wheat blast mitigation strategies is in the hands of the world’s governments. The paper recommends quarantining potentially infected grain and seeds before they enter a new jurisdiction.

Governments can also create wheat “holidays”, which functionally ban cultivation of wheat in farms near regions where the disease has taken hold. Ideally, this would keep infectable crops out of the reach of wheat blast’s airborne and wind-flung spores. In 2017, India banned wheat cultivation within five kilometers of Bangladesh’s border, for instance. The paper also recommends that other crops — such as legumes and oilseed — that cannot be infected by the wheat blast pathogen be grown in these areas instead, to protect the farmers’ livelihoods.

Other tactics involve partnerships between researchers and agricultural workers. For instance, early warning systems for wheat blast prediction have been developed and are being implemented in Bangladesh and Brazil. Using weather data, these systems alert farmers when the conditions are ideal for a wheat blast outbreak.

Researchers are also hunting for wheat varieties that are resistant to the disease. Currently, no varieties are fully immune, but a few do show promise and can partially resist the ailment depending upon the disease pressure. Many of these resistant varieties have the CIMMYT genotype Milan in their pedigree.

“But the resistance is still limited. It is still quite narrow, basically one single gene,” Xinyao He, one of the co-authors of the paper said, adding that identifying new resistant genes and incorporating them into breeding programs could help reduce wheat blast’s impact.

Wheat spikes damaged by wheat blast. (Photo: Xinyao He/CIMMYT)

The more the merrier

Other methods outlined in the paper directly involve farmers. However, some of these might be more economically or practically feasible than others, particularly for small-scale farmers in developing countries. Wheat blast thrives in warm, humid climates, so farmers can adjust their planting date so the wheat flowers when the weather is drier and cooler. This method is relatively easy and low-cost.

The research also recommends that farmers rotate crops, alternating between wheat and other plants wheat blast cannot infect, so the disease will not carry over from one year to the next. Farmers should also destroy or remove crop residues, which may contain wheat blast spores. Adding various minerals to the soil, such as silicon, magnesium, and calcium, can also help the plants fend off the fungus. Another option is induced resistance, applying chemicals to the plants such as jasmonic acid and ethylene that trigger its natural resistance, much like a vaccine, Singh said.

Currently, fungicide use, including the treatment of seeds with the compounds, is common practice to protect crops from wheat blast. While this has proven to be somewhat effective, it adds additional costs which can be hard for small-scale farmers to swallow. Furthermore, the pathogen evolves to survive these fungicides. As the fungus changes, it can also gain the ability to overcome resistant crop varieties. The paper notes that rotating fungicides or developing new ones — as well as identifying and deploying more resistant genes within the wheat — can help address this issue.

However, combining some of these efforts in tandem could have a marked benefit in the fight against wheat blast. For instance, according to Singh, using resistant wheat varieties, fungicides, and quarantine measures together could be a time-, labor-, and cost-effective way for small-scale farmers in developing nations to safeguard their crops and livelihoods.

“Multiple approaches need to be taken to manage wheat blast,” he said.