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From CGIAR Research to Action: Strengthening Science-Policy Linkages

Written by dmedina on . Posted in Blogs.

CGIAR is the world’s largest agricultural innovation network and a global leader in research for development. Over the past five decades, its investments have delivered tenfold returns—yielding more abundant and affordable food while reducing hunger, poverty, and land use (1). Today’s food systems face multiple, interconnected challenges – ranging from production inefficiencies and nutritional disparities to social exclusion and environmental degradation. These issues are further intensified by climate change, geopolitical instability, and systemic inequality. Tackling them demands coordinated, multisectoral responses and stronger collaboration with the public sector, particularly policymakers (2). There is a well-recognized gap between science and policy, driven in part by the technical complexity of research outputs. Policymakers often face challenges in interpreting and applying scientific findings, which hinders the uptake of evidence-based solutions. Therefore, there is a need for simplified and tailored research communication to broader audiences, particularly for policymakers in target countries.

“To truly make a difference, research must speak the language of policy: Science without policy is just academia; policy without science is just guesswork.”

For research and innovation to effectively influence and inform policy, researchers must go beyond simply presenting evidence and engage deeply with the policy-making context. By understanding the multiple factors policymakers consider and by building genuine and trust-based partnerships, researchers can significantly improve the chances that their work will shape and inform effective, actionable policy (3).

What a researcher should know for effective science-policy communication

To communicate effectively with policymakers, researchers must understand the broader policymaking context and constraints faced by decision-makers responsible for crafting and implementing policy in a target country. Policymakers weigh multiple dimensions – political, economic, social, and logistical – before adopting innovations. Successful research-to-policy translation hinges on addressing these dimensions holistically.

Key dimensions policymakers consider

Political Acceptability: Innovations must align with current political agendas and priorities to secure regulatory and financial support. Political will and leadership are often decisive enablers – without them, even the most technically sound innovations may stall.

Social Desirability: Policies are more likely to succeed when they address pressing societal needs, resonate with public values, and enhance quality of life. Public support and broad adoption are essential for long-term sustained impact.

Technical Feasibility: Innovations should be practical, scalable, and implementable with available technologies and systems. If an innovation is too complex, unreliable, or difficult to implement, it risks being unsustainable or rejected.

Financial Viability: Policymakers assess whether innovations are economically feasible, offer a clear return on investment, and align with existing budgetary constraints. Financial sustainability encourages both public and private sector participation.

Administrative Doability: For policy innovations to succeed, they must be implementable within current administrative systems. Clear procedures for implementation and monitoring are essential. Administrative complexity can be a significant barrier.

Judicial Tenability: Innovations must comply with existing legal frameworks. If legal adaptation is required, there must be a strong, evidence-based justification to support such changes and ensure alignment with constitutional or regulatory standards.

Emotional Relatability: Innovations that resonate emotionally by addressing people’s concerns, fears, and aspirations are more likely to gain public acceptance.

Environmental Sustainability: Minimizing environmental impact and promoting resource efficiency are increasingly important, as policymakers face mounting pressure to support long-term ecological balance.

Challenges in Research-Policy Engagement

  • Limited interactions and weak personal engagement between researchers and policymakers result in infrequent use of empirical evidence in policymaking.
  • Significant differences exist in decision-making processes, norms, and cultures between researchers and policymakers.
  • Additional barriers include differing institutional cultures, and a lack of incentives or training for effective policy engagement.

Effective Strategies for Bridging the Gap

  • Training researchers to understand the policymaking process, improve communication, and build relationships with policymakers.
  • Combining direct instruction (didactic training) and experiential learning (hands-on engagement) to reinforce both knowledge and practical engagement is most effective.
  • A structured approach designed to build researchers’ policy competencies and support policy engagement through iterative phases, including policy priority identification, network development, training, and ongoing collaboration.
  • Prioritize continuous feedback, relationship building, and responsiveness to current policy needs.
  • Research institutions should adjust incentive structures (such as tenure and promotion criteria) to recognize and encourage policy engagement.
  • Institutions should support research activities that directly align with policy priorities and opportunities.
  • Effectively translating research into policy is an interactive and collaborative process. Building trust, keeping communication open, and forming strong relationships with policymakers are key to success. Engaging early, particularly during the agenda-setting stage, helps ensure that research tackles relevant policy issues and anticipates potential implementation challenges.
  • Involving policymakers and stakeholders through co-design enhances the relevance and utility of research findings. This approach helps identify potential barriers, align expectations, and build shared ownership of both the research and the resulting policies.
  • Researchers must tailor their communication for policy audiences by turning complex evidence into clear, practical messages. Using data alongside compelling stories can build trust and encourage engagement, making the case for innovation more convincing.
  • Understanding the broader policy environment is critical. Researchers should understand the institutional, legal, and administrative context in which policy decisions occur. Identifying key policy actors and knowing their roles, motivations, and limitations is essential for effective engagement.

Practical Strategies for Researchers

  • Engage policymakers early and regularly to co-create research agendas and ensure the work remains relevant.
  • Build long-term relationships grounded in trust and mutual understanding.
  • Communicate findings clearly in policy-relevant terms, combining data with compelling narratives.
  • Show how the innovation tackles pressing local issues and has the potential to scale effectively.
  • Identify and address possible barriers – political, financial, administrative, legal, and social – before recommending policy adoption.

CIMMYT in Bangladesh is actively engaging with policymakers. As part of the ongoing research project Transforming Smallholder Food Systems in South Asia (RUPANTAR), we explored the political economy of policies for sustainable agriculture in Bangladesh. The findings were published in an international peer-reviewed journal to share insights with policymakers. The article attracted only around 80 readers – mostly researchers. In contrast, a simplified policy brief based on the same findings reached over 1,800 readers in a few months, the majority of whom were based in Bangladesh. This highlights the importance of making research more accessible and actionable.

CGIAR is well-positioned to address these challenges. In response, CGIAR has launched its unique Scaling for Impact (S4I) program to better align research with real-world needs (4). It emphasizes demand signaling, building partnerships, understanding the policy landscape, and supporting structured scaling. In particular, S4I’s focus areas include identifying stakeholder needs and shaping enabling policies that support CGIAR’s broader impact goals.

  1. Thornton P, Dijkman J, Herrero M, Szilagyi L, Cramer L. Aligning vision and reality in publicly funded agricultural research for development: A case study of CGIAR. Food Policy. 2022 [cited 2025 May 11];107:102196. https://doi.org/10.1016/j.foodpol.2021.102196 
  2. UNEP. Strengthening the Science-Policy Interface: a Gap Analysis. United Nations Environment Programme Nairobi; 2017.
  3. Ruhl JB, Posner SM, Ricketts TH. Engaging policy in science writing: Patterns and strategies. Plos One.2019 [cited 2025 May 11];14(8):e0220497. https://doi.org/10.1371/journal.pone.0220497
  4. CGIAR. 2024. Scaling for Impact Program: Full design document. Agenda item SC21-05a, 21st CGIAR System Council meeting, Berlin, Germany, 11-12 December 2024. Montpellier: CGIAR

Double the Harvest, Double the Income: Intercropping for Yield, Income and Security

Written by dmedina on . Posted in Blogs.

In the quiet villages of eastern India, a transformation is unfolding—led by smallholder farmers and powered by the science of intercropping.

“I got a good price for the cabbages, and I’m hopeful maize will do just as well. Look at it—it’s healthy and thriving,” says Nirmala Devi with a proud smile. At 45, Nirmala tends her small farm in Butijhari village, Kishanganj, Bihar.

She is one of 20 women in her village redefining farming through knowledge-sharing, new skills, and small-scale entrepreneurship.

In her maize field, Nirmala Devi proudly displays the remaining cabbages from her intercrop harvest, now set aside for livestock fodder after sale and household consumption (Photo: Nima Chodon/CIMMYT)

“For the past two rabi (winter) seasons, we’ve been practicing intercropping with maize, Nirmala says, gesturing toward her fields. “We not only sell what we grow – cabbage, garden pea, beans, spinach, etc – but also exchange it among ourselves, depending on what we need at home.”

This approach has brought more than just additional income. It’s improving household nutrition, providing animal fodder, and increasing land productivity by growing two crops in the same plot during the rabi season.

Growing Together

Not only in villages of Kishanganj, into the villages of Coochbehar and Malda in West Bengal, farmers are seeing similar results. Now in their second year with the CIMMYT-led intercropping project, they are seeing substantial benefits—improved yields, additional income, and greater resilience against climate and or the failure of any single crop.

While intercropping isn’t new, this approach is different. CIMMYT and its partners, supported by the Australian Centre for International Agricultural Research (ACIAR), are promoting additive intercropping in wide-row staple crops like maize across India, Bangladesh and Bhutan.

Swaraj Dutta from Dr. Kalam Agriculture College under Bihar Agriculture University, working on the project, explains how this works: “We help farmers adjust the way they plant maize—either 60-60 cm spacing in single rows or a paired-row system at 30-90 cm. Between these rows, short-duration vegetables like cabbage, spinach, or legumes thrive early in the season.”

Maize and More

“The intensive cultivation of rice and maize (and previously wheat) is placing significant stress on natural resources and is becoming increasingly unsustainable in the face of growing climate change challenges. Yet, many farmers continue with these practices, even as returns diminish, due to a fear of diversifying,” explains Biplab Mitra of Uttar Banga Krishi Viswavidyalaya (UBKV), the university is supporting the intercropping project in Coochbehar and Malda districts of West Bengal.

“Traditionally, maize has been grown densely and often as a monocrop following rice in these regions. However, maize’s adaptability to both kharif and rabi seasons presents an opportunity to shift away from this unsustainable pattern”, added Mitra.  Through intercropping maize with vegetables during the rabi season farmers are now exploring more diversified and resilient farming systems that reduce pressure on resources and improve income potential.

“We used to grow only maize after rice,” says Santos Deb from Dinhata village, Coochbehar, standing proudly beside his wife Sochirani Deb. “But now, following the advice of scientists from UBKV, we intercrop. Two different crops, one cereal and one vegetable from the same field in the same season—that’s something we never attempted.”

On just 800 square meters, Barman adopted paired-row planting and added vegetables between maize rows. After covering input costs, he earned an additional â‚č15,000–17,000 (US$180–200) for the vegetables, gained fresh food for the family, and produced fodder for their livestock. “This has been very rewarding for us. I have started growing in all my plots now,” he beams. “We’ll keep intercropping every rabi season throughout our lives.”

Intercropping offers a crucial buffer against climate-related risks by providing farmers a valuable source of additional income during the rabi season. Adverse weather events such as high winds, untimely late-season rains or storms often cause maize to lodge, resulting in significant yield losses and reduced income. By adopting intercropping, farmers can cover production costs earlier in the season and minimize exposure to climate-related economic losses.

 

Farmer Santos Deb and his wife Sochirani stand on their intercropped farm, where they grew vegetables alongside maize to boost both income and household consumption (Photo: Nima Chodon/CIMMYT)

Some farmers, like Kamal Ganesh from Chapati village in Kishanganj, see intercropping as a form of security against unpredictable harvests. “I grew cabbage and cauliflower under the project. Due to unavoidable circumstances, I was delayed in applying fertilizer and irrigating my maize crop, so the maize yield may be poor this harvest. But I’ve already earned a profit from the vegetables. Having a second crop in the same field acts as a safety net—if one fails, the other can still bring returns,” he explains.

Looking Ahead

Researchers assert that the project’s introduction of vegetable intercropping with maize offers new opportunities for diversification and resilience in the agriculture sector already stressed by climate change.

For many farmers, this is just the beginning. Alison Laing, leading the intercropping project at CIMMYT, shares her optimism: “This is only our second harvest across India, Bangladesh, and Bhutan, and already we’re seeing encouraging results. More and more farmers want to try it next season.”

Intercropping with sugarcane, on-station research trial fields at the Indian Institute for Farming Systems Research (ICAR-IIFSR), Meerut, Uttar Pradesh, India (Photo: Nima Chodon /CIMMYT)

Laing noted that further adjustments, including crop selection based on management needs, market value, and nutritional benefits, as well as efficient fertilizer use and market linkages, are being explored by researchers to enhance sustainability and broader adoption. “Apart from maize, we’ve also introduced intercropping in sugarcane fields in Meerut, Uttar Pradesh, in collaboration with the Indian Institute for Farming Systems Research (ICAR-IIFSR). We will review and analyse the results from the past two years in both maize and sugarcane practices to better understand farmers’ needs and support wider adoption,” she added.

Wide Row, Additive INTERCROPPING Project, led by CIMMYT and funded by ACIAR, is a 5-year initiative (launched in 2023) bringing together research institutions and agriculture scientists from India, Bangladesh and Bhutan to help smallholder farmers boost yields, increase their resilience to climate change and improve nutrition.  

Rising from adversity: The inspiring success of Asma and Tasin’s engineering workshop

Written by dmedina on . Posted in Blogs.

Asma Akter and her daughter, Tasin Fahariya, have emerged as inspiring examples of resilient agriculture-based light engineering (ABLE) entrepreneurs in Bangladesh. Their journey began in the face of tragedy when Asma, at 38, lost her husband to COVID-19. As the proprietor of Belal Engineering Workshop, a family business started by her late husband 32 years ago, Asma took on the responsibility of running the manufacturing enterprise.

The initial challenges were daunting. Customers lost trust in the company’s ability to deliver quality products on time under the leadership of a woman. Even their experienced workshop staff felt insecure about their job prospects under the new management. Financial institutions were hesitant to provide loans to a woman-led business, making it difficult to purchase raw materials for production.

However, their fortunes changed with the connections they made. Tasin received training in Financial Management, Digital Marketing, and Technical Drawing and Design. These courses enhanced her professional skills and boosted her confidence to lead the business effectively. They secured a loan of over US$4,300 from Gram Unnayan Kendra (GUK), addressing their capital needs.

They connected with dealers across Bangladesh, significantly expanding their customer base. They branded their products through smart packaging and organizational branding with logos, which helped them compete more effectively in the market.

As a result of these interventions, Asma and Tasin’s business has seen remarkable growth. They’ve expanded from 10 dealer points to 14, adding new geographical regions to their network. Their order volume and sales have increased tremendously. The mother-daughter duo’s achievements go beyond financial gains—their success underscores the importance of diverse viewpoints in enhancing and optimizing manufacturing processes.

Asma Akter at Belal Engineering Workshop in Bogura

(Photos: CIMMYT)

Sonia Jannat: defying odds, reaping success as a combine harvester MSP

Written by dmedina on . Posted in Blogs.

In the male-dominated realm of agricultural machinery services, Sonia Jannat, a 28-year-old from Jhenaidah, Bangladesh, has inscribed her name as a successful Machinery Solution Provider (MSP). Her determination—and the transformative power of new technologies—has launched her on an extraordinary journey of empowerment and financial independence.

Growing up in a farming household, Sonia was already familiar with cultivation. Rooted in agriculture, she harbored a longstanding ambition to make a meaningful impact in this field. To realize her vision, she consistently stayed abreast of the latest technologies and machinery designed to boost production while minimizing labor and time. However, life took an unexpected turn when her father fell ill with heart disease, forcing Sonia to shoulder the responsibility of financially supporting her family while pursuing her honors degree. This phase of hardship proved to be a turning point in her life.

Sonia Jannat operates one of her combine harvesters in Jhenaidah, Bangladesh. (Photo: CIMMYT)

During this challenging period, Sonia came across a YouTube video showcasing a combine harvester—a cutting-edge machine that could revolutionize harvesting. She immediately recognized its potential to transform farming practices and offer a reliable income stream. The first major hurdle was overcoming her family’s financial constraints and convincing them to invest in a machine without any tangible proof of its benefits.

In October 2020, Sonia and her family attended a live demonstration organized by the private sector, where she successfully persuaded her father to invest in a combine harvester. With the support of a machinery subsidy, she selected the best model suited to her business needs.

Sonia took part in business expansion meetings, built linkages with spare parts shop owners, dealers, and commission agents, and received operational and maintenance training—for both herself and her machine operators.

In the first season of 2021, Sonia’s combine harvester generated an impressive income of approximately US$10,000 (excluding operational and labor costs). This early success fueled her ambition, and with her family’s support, she invested in a second combine harvester, expanding the business.

Today, Sonia Jannat proudly owns three combine harvesters, generating an annual income of BDT 30 lakh (approximately US$33,000). Her customer base has grown to span around ten geographical divisions across Bangladesh. Sonia’s achievements have not only reshaped her own financial future but have also broken deep-rooted societal stereotypes. Once ridiculed for her unconventional path as an unmarried woman, she now commands respect and admiration from the very community that once doubted her.

Sonia shares with pride:

“The same society that once criticized me with comments like, ‘Why is an unmarried girl traveling around to earn money? Why is she breaking social norms?’ is now praising me. After witnessing my talent, social contributions, and support for my family, they now see me as one in a thousand girls!”

With academic credentials that include honors and a master’s degree in Bangla, Sonia’s aspirations continue to grow. She now envisions launching a new entrepreneurial venture offering a wider range of agricultural machinery services. She is committed to empowering women by actively engaging them in her business model—aiming to be an inspirational entrepreneur for many others.

Intercropping

Written by mcallejas on . Posted in Uncategorized.

The Intercropping project aims to identify options for smallholder farmers to sustainably intensify wide-row crop production through the addition of short-duration, high-value intercrop species and to help farmers increase their productivity, profitability and nutrition security while mitigating against climate change.

The focus is on intensification of wide-row planted crops: dry (rabi) season maize in Bangladesh, eastern India (Bihar and West Bengal states) and Bhutan, and sugarcane in central north India (Uttar Pradesh state). The primary focus is to sustainably improve cropping system productivity, however, the effects of wide-row, additive intercropping at the smallholder farm level will be considered, including potential food and nutrition benefits for the household.

There are many potential benefits of wide-row, additive intercropping, beyond increased cropping system productivity and profitability: water-, labor- and energy-use efficiencies; improved nutrition and food security for rural households; empowerment for women; and (over the longer term) increased soil health.

Little research has been conducted to date into wide-row, additive intercropping (as distinct from traditional replacement intercropping) in South Asian agroecologies. To successfully and sustainably integrate wide-row, additive intercropping into farmers’ cropping systems a range of challenges must be resolved, including optimal agronomic management and crop geometry, household- and farm-scale implications, and potential off-farm bottlenecks.

This project aims to identify practical methods to overcome these challenges for farming households in Bangladesh, Bhutan and India. Focusing on existing wide-row field crop production systems, the project aims to enable farmers to increase their cropping system productivity sustainably and in a manner that requires relatively few additional inputs.

Project activities and expected outcomes:

  • Evaluating farming households’ initial perspectives on wide-row, additive intercropping.
  • Conducting on station replicated field trials into wide-row, additive intercropping, focusing on those aspects of agronomic research difficult or unethical to undertake on farms.
  • Conducting on farm replicated field trials into wide-row, additive intercropping.
  • Determining how wide-row, additive intercropping could empower women. Quantify the long-term benefits, risks and trade-offs of wide-row, additive intercropping.
  • Describing key value/supply chains for wide-row, additive intercropping. Determine pathways to scale research to maximize impact.
  • Quantifying changes in household dry season nutrition for households representative of key typologies in each agroecological zone.

Bridging research and policy: how CIMMYT’s science shapes practice in South Asia

Written by dmedina on . Posted in Blogs.

Science without policy is just academia; policy without science is just guesswork. Through a blend of robust field research and policy advocacy, CIMMYT aims to bridge the gap between policy and practice in promoting sustainable agricultural practices through crop diversification in South Asia.

Taking Bangladesh as an example, CIMMYT’s work in the country highlights the critical need to link research with policy to achieve sustainable agricultural practices, enhance food security, and improve farmer livelihoods.

The power of research-informed policy

Bangladesh’s agriculture is highly rice-centric; although rational, this is risky and arguably unsustainable. This means there needs to be a focus on crop diversification, which is one of the approaches toward sustainable agriculture that can address socioeconomic and environmental challenges.

Recognizing these challenges, CIMMYT has been at the forefront of developing solutions by conducting extensive multi-location on-site and on-farm trials that consider the socioeconomic and pedoclimatic dimensions of farm households.

Additionally, CIMMYT analyzes historical policies and initiatives that have been implemented by the Bangladeshi government and international partners to promote crop diversification. Several opportunities for improvement were identified in past policies and project implementation; addressing these challenges requires bridging the gap between policies and research to scale up crop diversification efforts.

Through the RUPANTAR and CGIAR Transforming Agrifood Systems in South Asia (TAFSSA) projects, CIMMYT-Bangladesh has developed an analytical tool to understand the political economy of crop diversification policies and practices. When applied to agriculture policy research, this tool can be tailored to any country and policy context in South Asia.

Problem-solving for sustainable farming

Our policy-specific research, such as “Decoding the reality: Crop diversification and policy in Bangladesh”, has identified areas where policy and practical changes can drive significant improvements.

For example, while the government recognizes crop diversification in its agriculture policies starting with the Fifth Five-Year Plan, substantial funding for crop diversification efforts was only recently allocated. Integration of crop diversification into the government’s annual funding systems is essential to mainstream crop diversification in agriculture.

Many crop diversification policies and projects primarily focus on production, neglecting market systems development for new crops. Similarly, research suggests insufficient attention is paid to cold storage and other infrastructure needed to support diversification.

Most initiatives appear to have been project-driven, resulting in short-lived action without long-lasting impact. Insufficient coordination and support from government agencies appears to have affected projects led by both governments and development partners.

Stakeholder engagement spreads awareness

Without translating research into policy, we leave innovation on the shelf. CIMMYT-Bangladesh disseminates research findings to policymakers through the country Priority Investment Plan for the crop sector at the Bangladesh Agricultural Research Council (BARC), and South Asian Association for Regional Cooperation (SAARC) member countries through regional consultation workshops on accelerating the transformation process for sustainable and nutrition-sensitive food systems.

Looking ahead, CIMMYT’s efforts in South Asia remain dedicated to bridging the gap between research and policy. Ongoing projects aim to generate robust evidence, advocate for informed policy decisions, and foster partnerships across sectors. By continuing to lead in this space, CIMMYT strives to contribute to a more resilient agrifood system for South Asia.

A journey through Bangladesh’s ground-breaking agricultural practices

Written by Nur-A-Mahajabin Khan on . Posted in News.

Bangladesh’s agricultural landscape is evolving rapidly, with initiatives focused on modernization, sustainability, and innovation. Projects supported by the United States Agency for International Development (USAID) are working to advance the country’s agriculture through stakeholder collaboration, enhancing productivity, improving mechanization, and embedding sustainable practices.

To explore the impact of this work, USAID officials and senior staff from CIMMYT embarked on a comprehensive tour across multiple project sites on 14 – 19 April 2024. The USAID delegation featured Zachary P. Stewart, production systems specialist from the Bureau for Resilience, Environment, and Food Security, and John Laborde and Muhammad Nuruzzaman from the USAID Bangladesh Mission. From CIMMYT, the team included Sieglinde Snapp, program director from the Sustainable Agrifood Systems Program, Timothy J. Krupnik, country representative for Bangladesh, and Owen Calvert, project leader for the Cereal Systems Initiative for South Asia-Mechanization Extension Activity (CSISA-MEA).

Visitors at Bangladesh Wheat and Maize Research Institute (BWMRI) lab, Dinajpur, Bangladesh. (Photo: Masud Rana/CIMMYT Bangladesh)

Pioneering agricultural technology

The team visited Dinajpur, Bangladesh to observe the progress of the Transforming Agrifood Systems in South Asia (TAFSSA) CGIAR Initiative, including creative efforts to raise agricultural output, support sustainable practices, and boost the area’s nutrition levels. The integrated strategy of TAFSSA, which combines inclusive community participation with socio-agronomic research, has enabled local farmers to increase revenue, diversify their crop production, and enhance yields. From the premium quality rice (PQR) value chain at the Bengal Auto Rice Mill to the sustainable intensification of mixed farming systems, the visit demonstrated TAFSSA’s dedication to building agricultural resilience and improving lives throughout Bangladesh.

In Faridpur, the team observed CSISA-MEA, a five-year project dedicated to supporting smart mechanization in Bangladesh. This included displays of innovative agricultural machinery, such as onion storage blowers, jute fiber separators, axial flow pumps, and combine harvester spare parts. Stakeholders from various sectors shared insights on how to improve machine service providers’ capacity to manage their businesses effectively.

Sholakundu, a village in Kanaipur Union, Faridpur Sadar, has embraced modern agricultural practices and diversified crop cultivation. This site showcased the impact of mechanized rice transplantation and integrated pest management (IPM) techniques, with the opportunity to observe a live demonstration of mat-type seedling raising for mechanized rice transplantation. Discussions revolved around the benefits of mechanization, IPM activities, and the village’s commitment to enhancing agricultural sustainability and productivity.

Climate-specific farming

The southern coastal region of Bangladesh has long suffered from problems including salinity, drought, waterlogging, and unpredictable weather.  Addressing these issues is the USAID-funded Sustainable Intensification Innovation Lab–Asian Mega Delta (SIIL-AMD) project, which encourages climate-resilient farming and better water management.

The initiative engages approximately 400 farmers in trials of improved agronomic techniques through the use of 14 Learning Hubs and the Cluster Farmer Field School (CFFS), aiming to increase output and assist local people in adjusting to the special conditions of the coastal polder zone.

“Bangladesh’s women farmers, especially those in this area and the coastal regions, are incredibly hardworking,” stated Zachary P. Stewart. “Even in the face of adverse weather conditions, their dedication has led to excellent crop yields. If provided with further training and allocated more time, these industrious women could take the lead in driving Bangladesh’s agricultural progress forward.”

Visitors at local machine manufacturing workshop in Jashore, Bangladesh. (Photo: Masud Rana/CIMMYT Bangladesh)

Systemic self-sufficiency

For reasons of development and sustainability, Bangladesh’s agriculture industry is focused on using locally made machinery and spare parts. As USAID personnel visited the SMR Agro Engineering Workshop and Foundry, situated in Jashore Sadar, they witnessed how support by CSISA-MEA has improved the agricultural mechanization market system. SMR Agro Engineering produces high-quality agricultural machinery and spare parts, increasing farmers’ productivity and decreasing labor intensity.

CSISA-MEA’s support has been significant in preparing new industrial layouts, raising labor skill levels, providing technical guidance, and facilitating financing. Moreover, through the development of business partnerships with lead companies, agriculture-based light engineering enterprises (ABLEs), and dealers, CSISA-MEA ensures a strong network that supports the widespread use of mechanized services. This collaborative effort marks a significant step towards enhancing rural livelihoods and achieving sustainable agricultural practices in Bangladesh.

Global research partnerships

In addition to visiting farmers’ fields, the team also attended the Bangladesh Agricultural Research Institute (BARI), the nation’s largest agricultural research center which focuses on improving crop yields, food security, and employment. The visitors explored the work in mechanization, IPM, and farm machinery, with a tour of BARI’s IPM and toxicology laboratories highlighting the organizations’ sustainable approach to pest management.

The final visit was to Ispahani Agro Limited (IAL), a leading bio-pesticide producer in Gazipur. IAL is at the forefront of bio-rational pest management, creating environmentally friendly, non-toxic inputs. CIMMYT’s assistance has been crucial for the company’s growth, with the tour covering production units, laboratories, and discussions on IAL’s business development.

Overall, the experience offered a comprehensive overview of collaborative activities between USAID, CIMMYT, and Bangladeshi stakeholders. From research and mechanization to bio-rational pest management, the combined efforts boost output and encourage sustainability and responsible environmental behavior.

As Bangladesh continues to embrace modern farming practices, partnerships and projects will play a pivotal role in defining how the country’s agricultural industry evolves into one that is economically viable and sustainable.

Heat tolerant maize: a solution for climate change-induced 360◩ water deficits

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

Seed company partners observe the performance of heat-tolerant hybrids in the dry heat of southern Karnataka, India. (Photo: CIMMYT)

Millions of smallholders in the Global South depend on maize, largely cultivated under rainfed conditions, for their own food security and livelihoods. Climate change mediated weather extremes, such as heat waves and frequent droughts, pose a major challenge to agricultural production, especially for rainfed crops like maize in the tropics.

“With both effects coming together under heat stress conditions, plants are surrounded, with no relief from the soil or the air,” said Pervez H. Zaidi, maize physiologist with CIMMYT’s Global Maize Program in Asia. “Climate change induced drought and heat stress results in a double-sided water deficit: supply-side drought due to depleted moisture in soils, and demand-side drought with decreased moisture in the surface air. “

Extreme weather events

Weather extremes have emerged as the major factor contributing to low productivity of the rainfed system in lowland tropics. South Asia is already experiencing soaring high temperatures (≄40◩C), at least 5◩C above the threshold limit for tropical maize and increased frequency of drought stress.

A woman agricultural officer discusses the performance of heat tolerant hybrids at farmers’ field in Raichur districts of Karnataka, India. (Photo: CIMMYT)

“In today’s warmer and drier climate, unless farmers have copious amounts of water (which might not be a sustainable choice for smallholders in the tropics) to not only meet the increased transpiration needs of the plants but also for increased evaporation to maintain necessary levels of humidity in the air, the climate change mediated weather extremes, such as heat and drought pose a major challenge to agricultural production, especially for rainfed crops like maize in lowland tropics,” said Zaidi.

To deal with emerging trends of unpredictable weather patterns with an increased number of warmer and drier days, new maize cultivars must combine high yield potential with tolerance to heat stress.

Maize designed to thrive in extreme weather conditions

CIMMYT’s Global Maize Program in South Asia, in partnership with public sector maize research institutes and private sector seed companies in the region, is implementing an intensive initiative for developing and deploying heat tolerant maize that combines high yield potential with resilience to heat and drought.

By integrating novel breeding and precision phenotyping tools and methods, new maize germplasm with enhanced levels of heat stress tolerance is being developed for lowland tropics. Over a decade of concerted efforts have resulted in over 50 elite heat stress tolerant, CIMMYT-derived maize hybrids licensed to public and private sector partners for varietal release, improved seed deployment, and scale-up.

Popular normal hybrids (left) & CAH153, a heat tolerant hybrid (right) under heat stress. (Photo: CIMMYT)

As of 2023, a total of 22 such high-yielding climate-adaptive maize (CAM) hybrids have been released by partners throughout South Asia. Through public-private partnerships, eight hybrids are being already deployed and scaled-up to over 100,000 hectares in Bangladesh, Bhutan, India, Nepal, and Pakistan. Also, the heat tolerant lines developed by CIMMYT in Asia were used by maize programs in sub-Saharan Africa for developing heat tolerant maize hybrids by crossing these as trait donors with their elite maize lines.

Studies on the new CAM hybrids show that while their yield is like existing normal maize hybrids under favorable conditions, the CAM hybrids outperform normal hybrids significantly under unfavorable weather conditions.

“The unique selling point of the new CAM hybrids is that they guarantee a minimum yield of at least 1.0 tons per hectare to smallholder farmers under unfavorable weather when most of the existing normal hybrids end-up with very poor yield,” said Subhas Raj Upadhyay, from the Lumbini Seed Company Ltd. in Nepal.

Given the superior performance of CAM seeds in stress conditions, Nepali farmers have expressed willingness to pay a premium price: an average of 71% more with government subsidy, or at least 19% extra without a subsidy for CAM seed. Similarly, the farmers in hot-dry areas of the Karnataka state of India are ready to pay 37% premium price for CAM seed compared to normal hybrid seed. These reports strongly validate the demand of CAM seed and therefore a targeted initiative is needed to accelerate deployment and scaling these seeds in climate-vulnerable marginal agroecologies in tropics.

Unlocking insights from literature: exploring adaptation options in ACASA

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

To address the vulnerability of increased climate risks which impact agriculture, it is imperative to identify location-specific adaptation options. Atlas of Climate Adaptation in South Asian Agriculture (ACASA) is working on identifying commodity specific hazards at different geographical regions and the key adaptation options aligned with geography and hazards. This has been done for major cereal crops (rice, wheat, and maize), coarse grains (millets), oilseeds (coconut, mustard), legumes and vegetable crops (chickpea, potato), livestock, and fisheries. In ACASA, Systematic Literature Review (SLR) serves as a fundamental tool to identify key climate adaptation options and assess their effectiveness, considering agroecological factors.

Literature reviews are a customary approach for researchers to grasp existing knowledge and findings. The SLR methodically establishes clear research objectives, employs structured search queries to identify relevant literature, applies defined exclusion criteria, and extracts data for scientific analysis. This structured approach facilitates mapping the literature, validating findings, identifying gaps, and refining methodologies thereby minimizing biases, and ensuring comprehensive coverage of evidence.

Commodity-specific research questions, aligned with the problem/population, intervention, comparison/consequences, outcome, and time PICO(T) framework, have been used to guide the search process. By utilizing keywords specific to these questions, ACASA sourced literature from reputable databases such as Web of Science, Scopus, Google Scholar, and local databases of South Asian countries: Bangladesh, India, Nepal, and Sri Lanka. Local databases and gray literature further bolstered the understanding of local conditions and broadened the coverage of studied literature.

Systematic Literature Review (SLR)

The searched literature was then filtered using the well-established Preferred Reporting Items for Systematic Reviews and Meta Analysis (PRISMA) framework. PRISMA provides a minimum set of evidence-based literature to be used for further analysis. Let us look at maize as an example of a commodity under analysis in ACASA. For maize, a total of 1,282 papers were identified and based on four exclusion criteria pertaining to adaptation options, quantitative assessment, hazard, and risk only of which 72 papers were shortlisted. The PRISMA framework supported in getting a manageable dataset for in-depth analysis while ensuring transparency in the overall filtering process.

After filtering through PRISMA, a bibliometric analysis was conducted which contained research trend analysis, regional distribution patterns, adaptation option categorizations, and a co-occurrence analysis. Useful patterns in popularity of studied adaptation options, hazards, and their linkages were observed through this analysis. For instance, drought was the most studied hazard, while pest diseases and economics were major hazard impacts studied for the maize literature. In terms of adaptation options, stress tolerant varieties were the most popular adaptation option. Further, co-occurrence analysis provided linkages between adaptation options and hazards, and demonstrated that researchers have also studied bundled technologies.

SLR helped understand the effectiveness of certain adaptation options. Going ahead, this step will be fully realized through a “meta-analysis” which will be pivotal in quantifying the evidence and prioritizing adaptation options for different agroecologies. SLR has proven to be an effective research method to build a comprehensive database that can be used across different thematic areas of ACASA. Adaptation options enlisted through SLR can be further substantiated through expert elicitations via heurism, crop modelling, cost-benefit analysis, and other important pillars of ACASA to identify efficient and cost-effective options.

SLR also provided the ACASA team with the opportunity to identify certain literature gaps such as uneven geographical coverage and excessive emphasis on certain adaptation options versus the rest. Conceptualization of systematically reviewing climate adaptation options in the South Asian context by integrating bibliometric and meta-analysis adds novelty to the current efforts of ACASA.

Blog written by Aniket Deo, BISA-CIMMYT India; Niveta Jain, ICAR-IARI India; Roshan B Ojha, NARC Nepal; and Sayla Khandoker, BARI Bangladesh

USAID team lauds PQR value chain process in Bangladesh

Written by dmedina on . Posted in News.

Daily Sun Report, Rangpur

Experts of a visiting team from the United States Agency for International Development (USAID) have lauded the premium quality rice (PQR) value chain process in northern Bangladesh.

They made the admiration while visiting the Bengal Auto Rice Mills at Pulhat in Dinajpur and exchanging views with its owner, PQR farmers, local service providers (LSP) and traders on PQR production, milling and marketing.

Dr. Zachary P. Stewart, Production Systems Specialist of the Center for Agriculture-Led Growth, Bureau for Resilience, Environment and Food Security of the USAID from Washington led the team during their three-day tour in Northern Bangladesh that ended on Saturday.

John Laborde and Muhammad Nuruzzaman from the USAID’s Bangladesh Mission, Program Director of Sustainable Agrifood Systems at CIMMYT in Mexico Dr. Sieglinde Snapp and CIMMYT Country representative for Bangladesh Dr. Timothy J. Krupnik accompanied by him.

The Cereal Systems Initiative for South Asia CSISA-III project, funded by USAID and implemented by the International Rice Research Institute (IRRI) and International Maize and Wheat Improvement Center (CIMMYT), has been actively engaged in expanding and enhancing PQR value chains since 2016 in the Khulna division and since 2019 in the Rangpur division in Bangladesh.

The team members visited the entire Auto Rice Mills to observe the process of milling, sorting and packaging of PQR rice.

Owner of Bengal Auto Rice Mills Mr. Zahangir Alam informed that previously he sourced BRRI dhan50 (Banglamoti) from the southern part of Bangladesh.

However, since establishing a connection with CSISA in 2019, he has been procuring 30 percent to 40 percent of the total annual demand for BRRI dhan50 for producing PQR from the CSISA-beneficiary PQR farmers’ groups and others locally.

He highlighted how farmers have benefited from direct paddy purchases from them and obtaining high-quality and admixture-free rice.

“With assistance from CSISA, I have successfully branded this variety using its original name (BRRI dhan50) since 2020,” Zahangir Alam added.

Lead farmer Md. Azad expressed the advantages they have experienced from cultivating BRRI dhan50 through CSISA and higher yield of the BRRI dhan50 variety compared to the BRRI dhan28.

He highlighted their affiliation with the Bengal Auto Rice Mills, which has enabled them to fetch prices 7-8 Bangladesh Taka (BDT) higher per kilogram of paddy than those for BRRI dhan28.

During the visit, Agronomist from Bangladesh Office of IRRI Dr. Sharif Ahmed provided an overview of the PQR initiatives conducted by CSISA.

He also facilitated the tour alongside Md. Alanuzzaman Kurishi, Hub Coordinator at CIMMYT’s Dinajpur Field Office and Abdullah Miajy, a Specialist in Agricultural Research and Development at IRRI’s Rangpur Hub.

Photo: Daily Sun

A community leader in Baliakandi inspires women empowerment in agriculture: Promila Rani Mondol

Written by Nur-A-Mahajabin Khan on . Posted in Features.

Thirty-three-year-old Promila Rani Mondol lives in Baliakandi Upazila in Bangladesh with her husband, four daughters, and mother-in-law. The family’s main source of livelihood is agriculture. Promila has become a successful machinery solution provider (MSP), under the USAID-funded Feed the Future Cereal Systems Initiative for South Asia–Mechanization Extension Activity (CSISA-MEA). She and her husband are the main earning members of the family.

In Rajbari district, around 100 miles away from Dhaka, the capital of Bangladesh, agriculture is the primary livelihood for the community. Farmers engage in crop cultivation across three different seasons, focusing on crops such as rice, wheat, maize, jute, mustard, spices, and vegetables. In 2014, Promila’s family had barely two acres of cultivable land, and her husband was the sole breadwinner. Their average monthly income was US $91, which made it challenging to cover everyday expenses. To increase their family income, she began assisting her husband in crop production activities by planting seeds of jute, maize, wheat, mustard, and spice crops.

In 2014, the family became involved with the CSISA-MI project. Initially, they owned a power tiller. The project assisted them to purchase a power tiller-operated seeder attachment for land cultivation and line sowing. In 2018, Promila received training in line sowing techniques, including seed calibration using the power tiller operated seeder (PTOS) machine which was equipped with a starter kit. She began line sowing Rabi crops such as wheat, mung beans, sesame, and mustard. During the Kharif season, she engaged in line sowing jute.

After the launch of the CSISA-MEA in 2019, Promila participated in several activities including hands-on training on rice transplanter operation, one-acre mechanized rice transplantation demonstration by CSISA-MEA for her service business expansion, seedling raising training, two-day training on agricultural machinery operation maintenance and troubleshooting, and two exposure visits on rice transplanter service business models. With the assistance of CSISA-MEA, she organized several meetings to connect mat seedling (seedlings grown on a special mat or seedling tray), entrepreneurs, farmers, and MSPs, which led to the expansion of her business prospects. Additionally, CSISA-MEA linked her with the Department of Agricultural Extension, where she procured 1,750 seedling raising trays and 750 kg of seed support for mat seedling raising, significantly boosting her business growth.

In 2023, Promila bought a rice transplanter before Aman season (mid-July to mid-November-December) with a 50% government subsidy. CSISA-MEA helped her get the government subsidy and connected her with the VPKA foundation, which provided her with loan at a low-interest rate of 4%, along with a flexible repayment plan.

Promila Rani Mondol uses a rice transplanter to plant rice in the field in Rajbari, Bangladesh. (Photo: Asmaul Husna/CIMMYT)

During the Aman season, she provided rice transplantation services in 20 hectares of land benefiting approximately 150 farmers. During that season, her total earning was US $1,640. Additionally, in 2023, she earned approximately US $1,047 by line sowing aus rice and jute; and line sowing wheat, sesame, and mustard by PTOS during the Rabi season. Through her network of contacts with farmers across three blocks (shalmara, baliakandi, and nobabpur in Rajbari district), she offers machine rice transplantation services using the seedlings.

What sets her apart is not just her success as an MSP, but her commitment to breaking gender norms and inspiring other women in her community. Currently, with an annual income of US $2,276 and a profit margin of US$1,184, she has become a community leader, encouraging 15 other women to venture into farming and seedling raising services.

“With just one day of cultivation and seeding service, I can cover my daughter’s tutorial expenses for an entire month. The support from CSISA-MEA has made me more self-reliant as an MSP and increased my confidence in meeting family expenses,” says Promila.

Currently, 15 women in her community offer farming and seed planting services. Others, such as Sunita Rani, Niba Rai, Rakoli, Dipti, Mita, and Angoli, are inspired by her. While seven women can now operate the rice transplanter machine in the fields, others are showing an interest in the same. This is a significant and positive change in the community initiated by Promila.

Her impact extends beyond her own success; she has sparked a positive change in her community’s perception of women in agriculture. As the vice president of the MSP Networking Committee in Rajbari district, she continues to shoulder responsibilities, contributing not only to her family’s well-being but also to the larger narrative of women empowerment in Bangladesh.

Breaking ground and redefining roles in the agri engineering sector: Anjuara Begum

Written by Nur-A-Mahajabin Khan on . Posted in Features.

Anjuara Begum is 40 years old. Hailing from Jashore, Bangladesh, she works at Abdur Rahman Foundry as a grinding operator. In Bangladesh, it is rare to be a woman and work in a skilled job in engineering. Anjuara’s journey shows it is possible to break through gender stereotypes ascribed by Bangladeshi society.

Growing up in Jashore, Anjuara was married before the age of 15. About a year after giving birth to a son, her husband died leaving her to take on the sole responsibility of raising a child. She started working as a cleaner at Talukder Light Casting. Soon, she found her interest lay in sand molding and grinding which were considered to be skilled tasks traditionally carried out by the male employees. Over time, Anjuara graduated to working as an assistant in different sections of the foundry: casting, the furnace, and operating the grinding machine. For six years, she continued as an assistant with no formal training, often learning from the machine operators and supervisors around her.

Anjuara Begum operates a grinding machine at the foundry in Jashore, Bangladesh. (Photo: Asmaul Husna/CIMMYT)

In 2019, Anjuara joined the nearby Abdur Rahman Foundry, where for the first time she attended a formal skill enhancement training for women in the light engineering sector. She was able to access this opportunity through the USAID-funded Cereal Systems Initiative for South Asia–Mechanization Extension Activity (CSISA–MEA) as Abdur Rahman Foundry is part of CSISA–MEA’s agriculture-based light engineering activity. The training provided her with hands-on experience in grinding, drilling, sand molding, and painting. It not only imparted the technical skills she needed for her current job, but also the confidence to excel in a field where women are traditionally under-represented.

“The training was an eye-opener,” Anjuara said. “I was so happy to get a certificate–a first for me!” She shared how her confidence at work increased and about her promotion to the position of grinding machine operator–the first woman in the Jashore region to work in this role. There were other benefits to the new position–a more formal position than her former place of work where she was only a temporary employee; paid holiday and sick leave; and festival bonuses. Currently, she earns around US$ 80 a month–the same as the men in the foundry working at a similar skill level. Before the training, her salary was around US$ 55.

Anjuara tells us that the best part about the job is the respect she gets from family and the cooperation from her co-workers. As she continued to break barriers and excel in her profession, her success began to resonate within her community. Women in the neighborhood now view her as an inspiration. She is an example of how societal norms can be challenged when provided with equal opportunities and the right kind of support. Her success has ignited a spark of hope among women who had long been relegated to the sidelines.

CSISA–MEA’s light engineering training for the female workforce as part of its gender inclusive activities has not only transformed Anjuara’s life but has also catalyzed a shift in the perception of women’s capabilities within Bangladeshi society.

Prospect of boosting lentil production bright in Rajshahi region

Written by dmedina on . Posted in In the media.

The collaboration between CIMMYT, the Regional Wheat and Maize Research Center RWMRC and the Krishi Gobeshona Foundation is set to significantly boost lentil production in Bangladesh’s Rajshahi region. By introducing high-yielding lentil varieties and modern farming practices, and offering farmer support through training and resources, this initiative aims to capitalize on underused lands, enhance food security, and reduce imports, promising a substantial increase in the local lentil supply.

Read the full story.

Advancing conservation agriculture

Written by Nur-A-Mahajabin Khan on . Posted in Blogs.

A practical demonstration at Jabalpur. (Photo: CIMMYT)

Agriculture feeds the world. Yet traditional cycles of ploughing, planting, and harvesting crop and biomass products is inefficient of labor and other scarce resources and depletes soil health while emitting greenhouse gases that contribute to climate change.

One effort to ameliorate the negative effects of farming is a set of practices referred to as conservation agriculture (CA), based on the principles of minimal mechanical soil disturbance, permanent soil cover with plant material, and crop diversification.

To deliver advanced, high-level instruction on current innovative science around important aspects of cropping and farming system management to scientists from India, Bangladesh, Egypt, and Morocco, the 12th Advanced Conservation Agriculture Course hosted by the Indian Council of Agricultural Research (ICAR), CIMMYT, and the Borlaug Institute for South Asia (BISA) took place in India from December 10 to 24, 2023.

SK Chaudhari, deputy director general for Natural Resource Management, ICAR; HS Jat, director of the Indian Council of Agricultural Research-Indian Institute of Maize Research (ICAR-IIMR); Arun Joshi, country representative for India and BISA managing director, CIMMYT-India; Mahesh K. Gathala, senior systems agronomist and science lead, CIMMYT-Bangladesh; and Alison Laing, agroecologist, CIMMYT-Bangladesh, all attended the opening ceremony at the National Agricultural Science Complex in New Delhi, India.

This CA course integrated scientific advancements and multidisciplinary techniques to sustainably develop agricultural systems, restore natural resources, and improve climate resilience in agriculture throughout Asia and North Africa. It was held at leading research centers throughout India.

SK Chaudhari welcomed delegates to the course and stressed its practical character and efficacy in promoting CA management innovations, as evidenced by the significant achievements and international reputations of many former attendees and resource personnel.

“As climatic variability and change increase, the need to manage agronomic risks grows, and CA is an effective tool for farmers and scientists in both irrigated and rainfed systems,” said Chaudhari.

Twenty rising scientists from such fields as agronomy, soil science, plant protection, agricultural engineering, plant breeding, and extension, took part in the workshop where they gained a better understanding of all aspects of conservation agricultural methods in rainfed and irrigated ecosystems, as well as exposure to wide networks with prominent international scientists. Organizers prioritized the inclusion of female scientists, who made up 40% of attendees.

The workshop empowered participants to act as conservation agriculture ambassadors and champions of modern, novel agronomic methods when they return to their home institutions.

Rajbir Singh, ICAR assistant director general for Natural Resource Management, and ML Jat, global research program director of Resilient Farm and Food Systems, International Crops Research Institute for the Semi-Arid Tropics (ICRISAT) provided keynote addresses at the closing ceremony, held at the ICAR-Central Soil Salinity Research Institute in Karnal, Haryana, India.

Heat tolerant maize hybrids: a pursuit to strengthen food security in South Asia

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

After a decade of rigorous effort, CIMMYT, along with public-sector maize research institutes and private-sector seed companies in South Asia, have successfully developed and released 20 high-yielding heat-tolerant (HT) maize hybrids across Bangladesh, Bhutan, India, Nepal, and Pakistan. CIMMYT researchers used a combination of unique breeding tools and methods including genomics-assisted breeding, doubled haploidy (a speed-breeding approach where genotype is developed by chromosome doubling), field-based precision phenotyping, and trait-based selection to develop new maize germplasm that are high-yielding and also tolerant to heat and drought stresses.

While the first batch of five HT maize hybrids were released in 2017, by 2022 another 20 elite HT hybrids were released and eight varieties are deployed over 50,000 ha in the above countries.

In South Asia, maize is mainly grown as a rainfed crop and provides livelihoods for millions of smallholder farmers. Climate change-induced variability in weather conditions is one of the major reasons for year-to-year variation in global crop yields, including maize in Asia. It places at risk the food security and livelihood of farm families living in the stress-vulnerable lowland tropics. “South Asia is highly vulnerable to the detrimental effects of climate change, with its high population density, poverty, and low capacity to adapt. The region has been identified as one of the hotspots for climate change fueled by extreme events such as heat waves and intermittent droughts,” said Pervez H. Zaidi, principal scientist at CIMMYT.

Heat stress impairs the vegetative and reproductive growth of maize, starting from germination to grain filling. Heat stress alone, or in combination with drought, is projected to become a major production constraint for maize in the future. “If current trends persist until 2050, major food yields and food production capacity of South Asia will decrease significantly—by 17 percent for maize—due to climate change-induced heat and water stress,” explained Zaidi.

From breeding to improved seed delivery–the CIMMYT intervention

In the past, breeding for heat stress tolerance in maize was not accorded as high a priority in tropical maize breeding programs as other abiotic stresses such as drought, waterlogging, and low nitrogen in soil. However, in the last 12–15 years, heat stress tolerance has emerged as one of the key traits for CIMMYT’s maize breeding program, especially in the South Asian tropics. The two major factors behind this are increased frequency of weather extremes, including heat waves with prolonged dry period, and increasing demand for growing maize grain year-round.

At CIMMYT, systematic breeding for HT maize was initiated under Heat Stress Tolerant Maize for Asia (HTMA), a project funded by the United States Agency for International Development (USAID) Feed the Future program. The project was launched in 2013 in a public–private alliance mode, in collaboration with public-sector maize research institutions and private seed companies in Bangladesh, Bhutan, India, Nepal, and Pakistan.

The project leveraged the germplasm base and technical expertise of CIMMYT in breeding for abiotic stress tolerance, coupled with the research capacity and expertise of the partners. An array of activities was undertaken, including genetic dissection of traits associated with heat stress tolerance, development of new HT maize germplasm and experimental hybrids, evaluation of the improved hybrids across target populations of environments using a heat stress phenotyping network in South Asia, selection of elite maize hybrids for deployment, and finally scaling via public–private partnerships.

Delivery of HT maize hybrids to smallholder farmers in South Asia

After extensive testing and simultaneous assessment of hybrid seed production and other traits for commercial viability, the selected hybrids were officially released or registered for commercialization. Impact assessment of HT maize hybrid seed was conducted in targeted areas in India and Nepal. Studies showed farmers who adopted the HT varieties experienced significant gains under less-favorable weather conditions compared to farmers who did not.

Under favorable conditions the yield was on par with those of other hybrids. It was also demonstrated that HT hybrids provide guaranteed minimum yield (approx. 1 t ha-1) under hot, dry unfavorable weather conditions. Adoption of new HT hybrids was comparatively high (19.5%) in women-headed households mainly because of the “stay-green” trait that provides green fodder in addition to grain yield, as women in these areas are largely responsible for arranging fodder for their livestock.

“Smallholder farmers who grow maize in stress vulnerable ecologies in the Tarai region of Nepal and Karnataka state in southern India expressed willingness to pay a premium price for HT hybrid seed compared to seed of other available hybrids in their areas,” said Atul Kulkarni, socioeconomist at CIMMYT in India.

Going forward–positioning and promoting the new hybrids are critical

A simulation study suggested that the use of HT varieties could reduce yield loss (relative to current maize varieties) by up to 36% and 93% by 2030 and by 33% and 86% by 2050 under irrigated and rainfed conditions respectively. CIMMYT’s work in South Asia demonstrates that combining high yields and heat-stress tolerance is difficult, but not impossible, if one adopts a systematic and targeted breeding strategy.

The present registration system in many countries does not adequately recognize the relevance of climate-resilience traits and the yield stability of new hybrids. With year-to-year variation in maize productivity due to weather extremes, yield stability is emerging as an important trait. It should become an integral parameter of the registration and release system.

Positioning and promoting new HT maize hybrids in climate-vulnerable agroecologies requires stronger public–private partnerships for increasing awareness, access, and affordability of HT maize seed to smallholder farmers. It is important to educate farming communities in climate-vulnerable regions that compared to normal hybrids the stress-resilient hybrids are superior under unfavorable conditions and at par with or even superior to the best commercial hybrids under favorable conditions.

For farmers to be able to easily access the new promising hybrids, intensive efforts are needed to develop and strengthen local seed production and value chains involving small-and medium-sized enterprises, farmers’ cooperatives, and public-sector seed enterprises. These combined efforts will lead to wider dissemination of climate-resilient crop varieties to smallholder farmers and ensure global food security.