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Location: Asia

As a fast growing region with increasing challenges for smallholder farmers, Asia is a key target region for CIMMYT. CIMMYT’s work stretches from Central Asia to southern China and incorporates system-wide approaches to improve wheat and maize productivity and deliver quality seed to areas with high rates of child malnutrition. Activities involve national and regional local organizations to facilitate greater adoption of new technologies by farmers and benefit from close partnerships with farmer associations and agricultural extension agents.

Young researchers trained to develop resilient farming systems

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From 27 September to 4 October, scientists from India’s national agricultural research systems attended the “Conservation Agriculture: Developing Resilient Systems” training program at the Central Soil Salinity Research Institute (CSSRI) in Karnal, India. Participants learned about crop management technologies based on conservation agriculture (CA) and acquired skills to plan strategic CA research trials.

The training program was organized by CIMMYT’s Cereal Systems Initiative for South Asia (CSISA) project in collaboration with the Indian Council of Agricultural Research (ICAR) and CSSRI. Eighteen researchers from the Division of Natural Resource Management, International Rice Research Institute and CIMMYT attended the course.

Opening the course, ICAR Assistant Director General (Seeds) Dr. J.S. Chauhan, highlighted the importanc eof CA training for improving the productivity of crops and cropping systems in different agro-ecological regions of India. Conservation agriculture can sustain the livelihood of smallholders while maintaining and improving the quality of the environment and natural resources. CSSRI Director Dr. D.K. Sharma explained that CA has the ability to slow the depletion of underground water, declining soil fertility associated with multiple nutrient deficiencies, pest outbreaks and increased concentration of greenhouse gases in the atmosphere. He also focused on how to design diversified and resilient cropping systems that use resources more efficiently, as an alternative to intensive rice-wheat systems.

Globally, the positive impact of CA-based techniques on natural resources, adaptation and mitigation of climate change effects has been widely acknowledged. In India, strategic research on CA such as precise nutrient application, water, cultivars and weed management has been initiated. However, CA still remains a relatively new concept in the country. Andrew McDonald, CSISA project leader, talked about how continuous cultivation of rice-wheat cropping systems for almost five decades in the Indo-Gangetic Plains has caused the degradation of natural resources such as water and soil, thus affecting climate and biodiversity. He said, “This training program offers a unique opportunity for members of the country’s scientific community who are working in the area of natural resource management to help address the issues of water, labor and energy through the use of advanced crop production technologies.”

The training covered basic principles of CA, included field exercises and modern CA techniques for efficient climate change mitigation and adaptation strategies, impact assessment of CA technologies and sustainable management of natural resources to ensure food security, profitability and productivity. Participants were given hands-on training on the use of different technologies including the laser land leveler, turbo seeder, multi-crop planter, limit plot planter, bed planter and mechanical transplanter. They also learned how to measure greenhouse gas emissions.

Attendees also participated in strategic research trials at Kulvehri and Taraori in Karnal. H.S. Sidhu, farm development engineer of the Borlaug Institute for South Asia (BISA) and M.L. Jat, CIMMYT Senior cropping system agronomist, talked about the longterm strategic research trial on CA for intensive cereal systems, shared their experiences and outcomes related to BISA research and commented on the development work at Ladhowal, Ludhiana. Jat also spoke about using conservation agriculture and climate-smart agriculture, to achieve food sufficiency by 2050 through input-based management systems in diverse production systems and environments.

Scale-appropriate mechanization: the intercontinental connection

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CIMMYT aims to improve the livelihoods of poor farmers in the developing world by providing practical solutions for more efficient and sustainable farming. Among the options to improve efficiency, scale-appropriate and precise planting machinery is a crucial yet rarely satisfied need.

Mechanization efforts are ongoing across CIMMYT’s projects, with a strong focus on capacity building of functional small- and medium-scale engineering and manufacturing enterprises. Projects involved include ‘Farm Power and Conservation Agriculture for Sustainable Intensification’ in eastern and southern Africa, funded by the Australian Center for International AgriculturalResearch (ACIAR) and the Cereal Systems Initiative in South Asia (CSISA), funded by the Bill & Melinda Gates Foundation and USAID. CSISA collaborates closely with the machinery research and development work done on the farms of the Borlaug Institute for South Asia in India, CIMMYT conservation agriculture (CA) projects funded by the Australian Centre for International Agricultural Research, the Agri-Machinery Program based in Yinchuan, Ningxia, China, and the MasAgro Take It to the Farmer machinery and intelligent mechanization unit based in Mexico.

Applied research scientists and technicians assisting these projects work specifically to tackle problems in diverse farming conditions and for varying production systems. Despite their geographically diverse target areas, this team strives to reach a common focal point from which they can learn and compare technical advancements. These advancements are achieved through mutual machine technology testing programs, exchanging machines and expertise and evaluations of best solutions for scale-appropriate mechanization to boost sustainable intensification for resource poor farmers.

Recently, this collaboration model led to the export of several units of a toolbar-based, two-wheel tractor implement for bed shaping, direct seeding of different crops and precise fertilizer application. They will be tested by CIMMYT projects in Bangladesh, Ethiopia and Nepal. This multi-purpose, multi-crop equipment was developed to be CA-compatible and has been fine-tuned in Mexico, with design priorities that kept in mind the implement’s usefulness for smallholder farmers in other parts of the world. The machinery will be tested next in Zimbabwe and possibly India and Pakistan.

The team’s goal is to help developing countries and viable business models of local enterprises in specific regions to have access to good quality implements and tools at reasonable prices. This open-source prototyping strategy is based on the free sharing of technical designs and machinery construction plans. The strategy combines patent-free, lowcost replication blueprints of promising technologies with strong agronomical testing as the ultimate ‘make or break’ criterion. This crucial interaction sets CIMMYT’s engineering platforms apart from commercial options that determine research and development priorities based mainly on sales projections and marketing objectives.

The mechanization team strongly believes in the power of cross regional collaboration – a multidisciplinary work environment, connected intercontinentally with social stewardship and the potential to bring transformative changes to farmers’ fields across the developing world.

Wheat area expansion faces a headwind requiring increased spending on R&D to raise yields

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Photo credit: Madan Raj Bhatta

 

Derek Byerlee is a visiting scholar at Stanford University.
Any views expressed are his own.

Over the last 50 years or so, the big increases in agricultural production have come through improved yields largely as a result of the Green Revolution.

From 1961 to 2011, per capita cereal production increased by 40 percent, while the amount of cropland per capita fell by half. In most regions, the total area of cropland has either reached a peak or declined. However, in three tropical regions, land expansion has been and still is a significant source of agricultural growth: Southeast Asia, tropical South America and sub-Saharan Africa.

Since 1990, wheat is the only major crop to experience an overall decline in area.

Looking to the future, how much land can be expected to come into production for cropping?

Currently, about 1,500 million hectares (Mha) of land is used for crops.

I project that additional demand for land will be 6 to 12 Mha each year for a total of 120 to 240 Mha increase from 2010 to 2030.

The higher projection allows a greater role for trade and thereby production by the lowest-cost producers who are often located in land-abundant countries.

These estimates are broadly in line with a synthesis by Erik Lambin & Patrick Meyfroidt who also include projections of the loss of land due to expansion of urban settlements and infrastructure as well as losses due to land degradation. Taking these losses into account, Tony Fischer provides an estimate of total additional gross cropland demand from 2010 to 2030 of 160 Mha to 340 Mha. Global models also suggest expansion of cropland to 2050 of about 300 Mha, given projected yield growth.

Is there enough land to satisfy demand? The Food and Agriculture Organization of the United Nations’s World Agriculture Towards 2030/2050 report estimates that some 1.4 billion hectares of currently uncultivated land that is not forested or in protected areas is suited to crop agriculture although they note that this is an optimistic estimate. A more conservative estimate of available land with at least moderate suitability for rainfed cultivation in low population-density areas – that is, non-forested, non-protected and with a population density of less than 25 people per square kilometer – is approximately 450 Mha.

At first glance, it would thus seem that projected demand for land (even under the scenarios of the higher demand estimates) over the next two decades can be accommodated by available uncultivated land.

However, most of this uncultivated land is concentrated in a few countries in Sub-Saharan Africa, Latin America, Eastern Europe and Central Asia and is often far from ports and roads.

A global analysis may also miss key constraints at the local level such as human diseases and unrecorded current land use that reduce effective land supply.

In addition, an expansion of land area of the order of 160 Mha (the lower-bound estimate of the estimated future land needs) could have significant biodiversity costs from conversion of natural ecosystems, even in the non-forested areas considered above.

Indeed, one of the sustainable development goals currently under discussion in international fora is to reduce deforestation to zero by 2030 – implying a closing of the land frontier. Finally with the exception of some areas in Russia, Ukraine and Kazakhstan, most of the available land is in the tropics and is unsuitable for wheat production.

Overall then, projections of future land availability for agriculture suggest a growing land scarcity, particularly for wheat, especially when taking into account that demand for food and feed will continue to rise with growing affluence in rapidly industrializing countries, as well as the use of land for biofuel feedstocks.

Growing scarcity together with high commodity prices have combined to stimulate global investor interest in farmland that underlies much of the recent discussion on intensification as a strategy to save land and concerns about a global ‘land grab’ by investors from land-scarce countries.

Wheat area is also being pushed out by other crops in many countries. Over the period 1993 to 2013, wheat area has fallen by 4.5 Mha, exceeded only by other winter cereals (barley, rye, and oats) that have collectively lost over 40 Mha.

During the same period, the area of oil crops (mostly soybeans, rapeseed and oil palm) has increased by an astonishing 100 Mha, maize by a hefty 53 Mha and rice by 20 Mha.

This year for example, North Dakota, a quintessential wheat-producing state in the United States, for the first time planted more soybeans than wheat.

In Argentina, soybeans rotated with maize have also displaced a significant wheat area, while in northern China, increasing maize area appears to be at the expense of spring wheat. Wheat area in the United States and China has fallen by 7 Mha and 6 Mha respectively since 1993. The major exceptions to these trends are India and Australia, where wheat area is up sharply.

All of this, of course, implies that increasing wheat yields will be especially critical to maintain its competitiveness and to save further land expansion into forests.

Norman Borlaug, the pioneer of the Green Revolution, long recognized that increased yields were not only essential to increasing global food security but also to saving forests.

This has now been enshrined in the environmental literature as the Borlaug Hypothesis. The real world is not so simple since there are situations where increasing yields may enhance crop profitability and encourage its expansion at the expense of forests. However, we found that just the CGIAR investment in germplasm is likely to have saved from 18-27 Mha of land from 1965-2000.

The bottom line is that increased spending on research and development (R&D) by national programs and CGIAR is a priority to achieving not only food security but confronting land scarcity.

None of the above considers the negative impacts of climate change, but a recent thoughtful analysis by David Lobell of Stanford University has shown that investing in R&D to adapt to climate change and maintain yields in the face of rising temperatures and increased drought is one of the most cost-effective ways to save forests and therefore mitigate climate change.

Surprisingly, wheat is the crop that faces the strongest headwind from both land scarcity and climate change. Wheat also appears to be grossly underfunded at the international level as measured by the budget provided to the WHEAT CRP – one of the lowest among the 15 CRPs. Tony Fischer, Honorary Research Fellow, at the Commonwealth Scientific and Industrial Research Organisation (CSIRO), in a companion piece has shown that there are many promising avenues to higher R&D spending, both to raise yield potential and close large yield gaps.

 

Interested in this subject? Find out more information here:

Alexandratos, N., & Bruinsma, J. (2012). World agriculture towards 2030/2050: the 2012 revision (No. 12-03, p. 4). Rome, FAO: ESA Working paper.

Borlaug, N. 2007. “Feeding a Hungry World.” Science 318(5849):359–359.

Deininger, K.W., and D. Byerlee. 2011. Rising Global Interest in Farmland: Can it Yield Sustainable and Equitable Benefits? Washington D.C.: World Bank Publications.

Fischer RA, Byerlee D, Edmeades GL. 2014. Crop Yields and Food Security: Will Yield Increase Continue to Feed the World? Canberra: Aust. Cent. Int. Agric. Res.

Lambin, E. F. 2012. Global land availability: Malthus versus Ricardo. Global Food Security. 1; 83-87.

Lobell, D.B., U.L.C. Baldos, and T.W. Hertel. 2013. “Climate Adaptation as Mitigation: the Case of Agricultural Investments.” Environmental Research Letters 8(1):015012.

Stevenson, J.R., N. Villoria, D. Byerlee, T. Kelley, and M. Maredia.  2013. “Green Revolution Research Saved an Estimated 18 to 27 Million Hectares from Being Brought into Agricultural Production.” Proceedings of the National Academy of Sciences. Available at: 10.1073/pnas.1208065110 [Accessed May 13, 2013].

 

 Go back to: Wheat Matters

 

CCAFS climate smart village program progress makes news in India

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The CCAFS Climate Smart Village (CSV) program recently earned significant media attention for its successes in the Indian states of Bihar, Haryana and Punjab where the program is being implemented. The CSVs were featured in BBC News as well as several newspapers in the region. The CSV program is helping farmers in developing countries adapt their agricultural practices to secure dependable food supplies and livelihoods, while also decreasing greenhouse gas emissions and increasing carbon sequestration, thereby decreasing future climate change. The project began in 2011 and works with villages in East and West Africa and South Asia. “The Climate Smart Villages program is a community-based approach to sustainable agricultural development,” said M.L. Jat, CIMMYT senior cropping system agronomist and South Asia coordinator of the CCAFS- CIMMYT project.

Annual planning meeting for Wheat Productivity Enhancement Program supported by USDA

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The Pakistan Agricultural Research Council (PARC) and CIMMYT organized a two-day annual wheat planning meeting at the National Agricultural Research Centre (NARC) in Islamabad. The meeting was in support of the Wheat Productivity Enhancement Program (WPEP), which is funded by the U.S. Department of Agriculture (USDA). The objectives of WPEP are to improve wheat though rust surveillance, breeding, pre-breeding, seed production, agronomy and coordination and capacity building. Meeting participants focused on a review of the progress made in 2013-14, identifying emerging opportunities and developing work plans for the coming year.

Dr. Shahid Masood, PARC chief science officer and senior director; Dr. Iftikhar Ahmed, PARC chairman; David Williams, agricultural counselor for the U.S. Embassy in Pakistan; Dr. Imtiaz Muhammad, country representative for CIMMYT in Pakistan.

“The United States has a long history of collaboration with Pakistan in the agriculture sector; WPEP has made exceptional progress in the country to develop Ug99-resistant wheat varieties which will ensure food security,” said David Williams, agricultural counselor at the U.S. Embassy in Islamabad. He also commended the integrated research efforts of national and international partners for the enhancement of the nation’s wheat yields.

David Williams, agricultural counselor for the U.S. Embassy in Pakistan, addresses the audience.

Imtiaz Muhammad, CIMMYT’s country representative in Pakistan, shared the impacts of WPEP on national and international wheat research systems. He added that CIMMYT’s efforts in the seed component of WPEP are substantial. WPEP has made significant progress; the release of Ug99-resistant wheat varieties (such as NARC-2011, PAK-13 and the upcoming Borlaug-14) will improve the livelihoods of smallholder farmers in Pakistan.

WPEP has played a vital role in developing a wheat rust surveillance system, upgrading infrastructure and improving the research capacity in Pakistan. Collaborative and coordinated efforts through PARC and CIMMYT have enabled the country to develop a rust culture bank. It has built the capacity of provincial wheat breeding programs to secure wheat production against the potential threat of Ug99 races.

During the technical session, partners from across Pakistan agreed that developing Ug99-resistant wheat varieties to replace traditional varieties and making them available to farmers is a critical step in maintaining high yields in Pakistan. Participants acknowledged the support of the USDA, CIMMYT and PARC in wheat research.

China’s wheat production critical to global food security

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China’s Wheat Production Critical to Global Food Security

Zhonghu He is country representative in China for the International Maize and Wheat Improvement
Center (CIMMYT), and Qiaosheng Zhuang is a professor at the
Chinese Academy of Agricultural Science (CAAS).

China’s domestic agricultural activities are vital to ensuring food security for its 1.4 billion people and – as the world’s largest wheat producer – the country plays a major role in shaping international markets.

China produces about 120 million metric tons (265 million pounds) of wheat each year – on approximately 24 million hectares (59 million acres) of land, an area similar to the size of Algeria, according to statistics from the Food and Agriculture Organization of the United Nations (FAO).

Wheat makes up 40 percent of grain consumption in China and about 60 percent of the country’s population eats the grain daily.

Cultivated wheat, which was likely introduced to China in the late 6th to early 5th millennium B.C., is the second most important food crop in China after rice. It is the dominant staple food in the northern part of the country where it is used mainly to produce noodles and steamed bread.

In present-day China, more than 95 percent of wheat is sown in the autumn. A double cropping system is used in the Yellow River and Huai River valleys in which wheat is rotated with maize. In the Yangtze Valley it is rotated with rice.

Chinese wheat matures early, so two crops can be harvested each year.

Wheat in China is also exceptionally resistant to high temperatures during the grain filling stage, during which kernel size is determined, as well as such diseases as head scab, septoria and karnal bunt. The wheat cultivar Sumai 3, a plant selected by breeders for its desirable characteristics, is used globally as a source for improving scab resistance.

Current Challenges

Demand for wheat in China is growing due to population increase and rising living standards, but production is challenged by water scarcity, environmental contamination, rising temperatures, droughts, labor shortages and land-use shifts from grain production to cash crops.

Researchers anticipate that in the near future the consumption of homemade steamed bread and raw noodles will decrease in favor of western-style breads and pastries.

Breeding for high-yield potential remains the first priority, as the available planting area for wheat is unlikely to increase.

Overall breeding goals include increasing grain yield, while maintaining genetic gains already made by scientists in grain yield and improving the processing quality without increasing needed inputs to grow healthy crops.

Conventional breeding – in which wheat plants with desirable, or “elite” traits are selected and used as “parents” for subsequent generations – has been in use for more than a hundred years. The technique, combined with an increased application of biotechnology, will continue to play a leading role in wheat variety development.

In addition to powdery mildew and yellow rust, Fusarium head blight has migrated to the main wheat regions in northern China due to climate change and the continuous practice of wheat and maize rotation, posing a major threat to wheat production. Other diseases, such as sharp eyespot and take-all, are also becoming increasingly troublesome as scientists try to increase grain yields. Wheat in the area has a very low resistance to scab, which is creating another challenge.

Scientific Innovation

It is important that foreign germplasm – the genetic resources of an organism – from international research centers and alien genes from wild relative species be explored as potential sources of multiple-disease resistance.

In order to reduce inputs for wheat production, it is essential to breed varieties with higher water, nitrogen (N) and phosphorus (N) fertilizer use efficiencies, but this must be combined with high-yielding potential.

Interested in this subject? Find out more information here:

Zhonghu He and Alain P.A. Bonjean, 2010. Cereals in China, Mexico, D.F.: CIMMYT.

Zhonghu He, Xianchun Xia a, Shaobing Peng, Thomas Adam Lumpkin, 2014. Meeting demands for increased cereal production in China, Journal of Cereal Science, 59: 235-244.

Fahong Wang，Zhonghu He, Ken Sayre, Shengdong Li, Jisheng Si, Bo Feng, Lingan Kong,2009. Wheat cropping systems and technologies in China, Field Crop Research, 111: 181-188.

Drought tolerance for wheat grown in rain-fed areas must be strengthened, because varieties with drought tolerance and better water-use efficiency are already urgently needed.

Under altered conditions driven by climate change, planting dates have been delayed by 10 days over the last 20 years, but maturity has remained basically unchanged. Climate-resilient varieties are needed.

New genes and genetic resources must be explored with novel tools to realize higher genetic gains. Gene-specific markers will play an important role in facilitating the genes for disease resistance and quality. Genetically modified wheat could offer potential tools in reducing damage from head scab and aphids.

Crop management must play an important role in increasing wheat production. Low-cost farming practices are needed so that wheat can be more competitive in the financial markets and new cropping systems must be suited to machinery operation. International collaboration has contributed significantly to improving Chinese wheat research and development capacity.

The government of China considers the International Maize and Wheat Improvement Center (CIMMYT) an important strategic partner in wheat research and continues to work closely with CIMMYT and other international partners to meet future wheat demands.

 

6th CSISA wheat breeding meeting reviews gains in South Asia

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On 11-12 September, 61 scientists from Bangladesh, Bhutan, India and Nepal convened in Kathmandu, Nepal, for the 6th Wheat Breeding Review Meeting of the Cereal Systems Initiative for South Asia (CSISA) objective 4 program.

Participants pose for a photo at the 6th CSISA Wheat Breeding review meeting, Kathmandu, Nepal, held 11-12 September.
Photo: Prakash Shrestha.

The meeting was organized by CIMMYT’s Kathmandu office and led by Dr. Arun Joshi. Other CIMMYT participants were Andrew McDonald and Cynthia Mathys. Participants included representatives of the Wheat Research Centre of Bangladesh (Dinajpur); Bangladesh Agriculture Research Institute (BARI), Ghazipur; India’s Directorate of Wheat Research (DWR), Karnal and Shimla; the Indian Agricultural Research Institute (IARI), Delhi and Indore; Central Soil Salinity Research Institute, Karnal; Punjab Agricultural University, Ludhiana and Gurdaspur; Banaras Hindu University, Varanasi; the University of Agricultural Sciences, Dharwad; Uttarbanga Krishi Vishwa Vidyalaya, Coochbehar, West Bengal; Jawaharlal Nehru Krishi Vishwavidyalaya, Jabalpur and Powarkheda; Agharkar Research Institute, Pune; Govind Vallabh Pant University of Agriculture and Technology, Pantnagar; Chandra Shekhar Azad University of Agriculture and Technology, Kanpur; Indian Institute of Science Education and Research (IISER), Kolkata, Mohanpur, Distt. Nadia, W. Bengal; Nepal’s National Wheat Research Program (NWRP), Bhairahwa; Nepal Agricultural Research Institute (NARI); Nepal Agricultural Research Council (NARC); Renewable Natural Resources (RNR); Research and Development Centre (RDC), Bajo; the Bhutanese Ministry of Agriculture and Forest; and SAARC Agriculture Centre (SAC), Dhaka, Bangladesh.

The CSISA meeting began with remarks by the chief guest, Dr. Dil Bahadur Gurung, executive director of NARC, along with Dr. Md. Rafiqul Islam Mondal, Director General of BARI and McDonald and Joshi of CIMMYT. Within a wider framework of discussions concerning wheat improvement issues, the CSISA meeting reviewed the progress of the 2013-14 cycle and established work plans for the 2014-15 crop cycle. McDonald presented a summary of all CSISA objectives and highlighted the substantial results obtained in wheat breeding. Mondal expressed his satisfaction that CSISA wheat breeding has regional recognition in South Asia and is trying its best to create linkages among regionally important research issues. Gurung highlighted the significance of collaborative research with a regional perspective and reported the successes being achieved by CSISA in wheat research and cropping systems in Nepal. He expressed his appreciation for new research efforts under CSISA and said that, “the South Asia-CIMMYT collaboration is paramount to the food security in the region.”

Four review sessions were conducted, chaired by Mondal, Dr. Ravi Pratap Singh, Dr. Girish Chandra Mishra and Joshi. Three sessions were platforms to present review reports and work plans from the 10 research centers; two other sessions discussed physiology, spot blotch, extension of wheat breeding activities and how to link wheat breeding with seed dissemination and capacity building in South Asia. Another session discussed conducting trials, weather data, advanced and segregating material in Kenya and submission of data booklets and reports. A major discussion was held to encourage the strengthening of existing links with CSISA objective 4 (wheat breeding) and other objectives of CSISA, which include linkages with hubs and other stakeholders,  and explored the possibilities of providing quality seeds from newly released improved varieties to farmers as quickly as possible. The inclusion of conservation agriculture and participatory variety selection were also encouraged.

Joshi also highlighted major achievements by the CGIAR Centers during the last six years of CSISA: breeding for biotic and abiotic stress tolerance gained momentum with around a dozen new varieties released and popularized in South Asia; germplasm exchange with CIMMYT increased significantly; the majority of advanced lines in CIMMYT trials carried resistance to Ug99 and other rusts; shuttling of segregating generations between South Asia and Kenya increased; use of physiological tools for heat and drought tolerance increased in the region; stronger links were formed among breeders, seed producers and farmers; and capacity building was promoted in the region. Many new topics were discussed, including the current status of wheat rusts in SAARC countries by Dr. Subhash Bhardwaj, DWR Shimla; the current status and future options for wheat breeding for salt-affected soils by Neeraj Kulshrestha, CSSRI, Karnal; capacity building options for crop protection at DWR for SAARC scientists by M.S. Saharan, DWR, Karnal; and how DWR can fast-track CSISA wheat varieties to farmers in the eastern Gangetic plains by Dr. Randhir Singh Poswal, DWR, Karnal. Dr. Shree Prakash Pandey of IISER Kolkata presented the outcome of new research on a WHEAT CRP project, “Deciphering phytohormone signaling in modulation of resistance to spot blotch disease for identification of novel resistance components for wheat improvement.” “SAARC Agriculture Centre – Its Introduction and Programs,” was presented by Dr. Tayan Raj Gurung, senior program specialist from SAARC Agriculture Centre (SAC), Dhaka. He stressed that regional collaboration on wheat breeding for salt-affected soils is urgently required in South Asia and recommended that CIMMYT play a leading role.

The review meeting enabled CSISA wheat researchers to highlight research achievements and increase their understanding of the newer challenges and provided opportunities for further improvements in the coming years.

Wheat value chain workshop aims to bolster food security in Sindh, Pakistan

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Food insecurity is a persistent problem in Sindh, a province in Pakistan slightly smaller than Tajikistan and home to 42.5 million residents. Almost three-quarters of the population are subject to regular food shortages due to the stagnation of staple food production and pressures caused by a doubling of the population since 1999.

One of several breakout groups brainstorms solutions during the workshop.

In an effort to address the food security challenges in the area, CIMMYT held a one-day workshop as part of the Agricultural Innovation Program (AIP) for Pakistan on 26 August in collaboration with the Wheat Research Institute and the Sakrand, Sindh and Pakistan Agricultural Research Council. More than 40 representatives vital to the wheat-seed value chain – including researchers, extension representatives, seed companies and the seed regulatory body of Pakistan – gathered in Hyderabad to analyze ways to transform wheat seed systems in the province.

The workshop was instrumental in revealing major opportunities and limitations across the entire spectrum of wheat seed systems, from breeding and releasing wheat varieties along with popularization and demand creation, to generating profitable and sustainable seed businesses.

On-farm evaluation of newly released varieties, Benazir 2013 and NARC 2011, indicated yield potentials 15 to 20 percent higher than existing varieties. If such varieties are made available and accepted throughout the region, food security could improve considerably due the varieties’ higher yield potential and rust resistance capability – traits critical to sustaining wheat productivity gains in Sindh.

According to the Federal Seed Certification and Registration Department (FSC&RD), only 31 percent of wheat seeds in Sindh are supplied by the commercial sector – public and privately owned seed companies – while 69 percent come from farmer-saved seeds.

Certified wheat seeds used in Sindh that are transported from Punjab province are not officially recognized in Sindh. If the unofficial transactions facilitating the flow of wheat seeds from Punjab are considered, this may indicate that wheat-seed systems in Sindh are fully functional and healthy.

Figure 1. Wheat varietal portfolio in Sindh seed systems (source: FSC&RD)
Figure 1. Wheat varietal portfolio in Sindh seed systems (source: FSC&RD)

However, this new batch of wheat varieties is not currently in the commercial seed production chain, so the average age of wheat varieties in Sindh indicates an unhealthy seed system. This is also illustrated by the predominance of the 10-year- old wheat variety TD 1 (Figure 1), the fact that wheat cultivars in the seed supply are, on average, 18 years old, and that two out of five varieties are more than 25 years old (Figure 1; Tj-83 and Sarsabz-89).

The Major Gap

The workshop identified a lack of coordinated efforts among those involved in the wheat-seed value chain to popularize new varieties as a significant weakness in Sindh. Weak coordination and linkages among research, extension, seed companies, the seed regulatory body and farmers has resulted in a very slow popularization of new varieties.

Many wheat varieties released in recent years have yet to reach farmers. This may be in part because the Sindh government’s Department of Agricultural Extension does not appear to have specific activities devoted to the publicity of new seed varieties.

More than 90 percent of certified wheat seeds in Sindh are supplied by private seed companies, which tend to focus on selling a few common wheat varieties with the highest market demand.

Deployment of new varieties in seed systems is slow also due to limited land and financial resources of research organizations. The lack of a regulatory framework allowing private seed companies to produce pre-basic and basic seeds is also a factor limiting the supply of adequate seeds.

Private seed companies said they recognized there is a lack of varietal choice – including short-duration varieties – and expressed interest in being involved in wheat variety development. However, they said they are limited by a lack of technical capability, financial resources, land and capital to develop research and development capacity.

Workshop participants identified a number of actions to incorporate into the AIP work plan for the upcoming wheat season, which begins in October-November. These actions include:

• Participatory varietal selection involving small-, medium- and large-scale farmers.

  • Participatory on-farm demonstrations of new varieties with involvement of all major actors of the wheat seed value chain.
  • Initiation of pre-basic and basic seed production by private seed companies with support from research, extension and seed regulatory bodies.
  • Provision of new seed wheat varieties to landless and smallholder farmers in Sindh.
More than 40 wheat-seed value chain representatives attended the workshop.

Upcoming: 12th Asian Maize Conference

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In Asia, maize production is growing at a faster rate than any other cereal. The demand for maize has grown in response to changing consumer habits; with greater demand for meat in consumers’ diets, maize is in high demand as feed for the growing livestock sector. At the same time, there remains great opportunity to increase the area under maize production in the region, as well as tremendous opportunities for innovations in crop improvement, management and diversification.

A Bangladeshi farmer uses a bed planter on his land, where his maize yields have increased since using the equipment.

It is in this context that the 12th Asian Maize Conference and Expert Consultation on “Maize for Food, Feed, Nutrition and Environmental Security” will be convened in Bangkok, Thailand, from 30 October to 1 November.

Organized by the Asia-Pacific Association of Agricultural Research Institutions (APAARI), CIMMYT, the FAO Regional Office for Asia and the Pacific, the Thai Department of Agriculture and the CGIAR Research Program on MAIZE (MAIZE CRP), the event will bring together around 250 researchers, policy-makers, service providers, innovative farmers and representatives of various organizations from across the public and private sectors.

The objective of the conference is to assess specific priorities to enhance maize production and productivity in the region, share the latest knowledge on cutting-edge maize technologies and generate awareness among institutions and stakeholders toward the better use of maize as a food, feed and an industrial crop in Asia.

These discussions will lead to an innovative and impact-oriented regional strategy for accelerated adoption of resilient technologies, market opportunities, networks, investment priorities and policy guidelines.

The Third Circular is available on the MAIZE CRP website. Registration forms, also available with the Third Circular, are accepted until 1 October.

CIMMYT scientist examines socio-economic determinants of yield variability in maize

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M.L. Jat, senior cropping system agronomist in the Global Conservation Agriculture Program at CIMMYT, in collaboration with Hirak Banerjee, Rupak Goswami, Somsubhra Chakraborty, Sudarshan Duttac, Kaushik Majumdar , T. Satyanarayana and Shamie Zingore, recently published a study examining the socio-economic determinants of yield gap in maize. The study, “Understanding biophysical and socio-economic determinants of maize (Zea mays L.) yield variability in eastern India” was published in the NJAS – Wageningen Journal of Life Sciences and was made possible by a grant from the Maize CRP. The term “yield gap” refers to “the difference between actual yields and potential yield,” potential yield being “the maximum yield that can be achieved in a given agro-ecological zone.” The purpose of the study was to investigate the key factors limiting maize productivity in two districts in each of the Indian states of West Bengal, Malda and Bankura, in order to develop effective crop and nutrient management strategies to reduce yield gap in the region.

The study compared the maize yield and socio-economic situation of farmers in the region and found that factors such as the caste or ethnic origin of farmers, availability of family labor, land ownership, use of legumes in cropping sequence, irrigation constraints, type of seed used, optimal plant population, labor and capital investment and use of organic manure had strong correlations to the maize yields farmers were able to achieve. The authors of the study hope that this information can facilitate the development and introduction of appropriate typology-specific crop management practices, in accordance with the needs of farmers and the socio-economic factors affecting their productivity, which could help to increase maize yields and reduce the yield gap for the region’s farmers.

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CCAFS management team visits India: assessing and widening climate smart villages

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ML Jat, Tripti Agarwal, Surabhi Mittal

The CGIAR Research Program on Climate Change, Agriculture and Food Security (CCAFS) management team lead by Bruce Campbell, Director, CCAFS, visited CIMMYT-CCAFS action sites in India during 23-28 August. The primary objectives of this visit were to see the conceptual framework of Climate Smart Villages (CSVs) in action, the innovative partnerships and policy-level influence for developing and scaling-up climate-smart agriculture in India to replicate the CSVs in other regions of the world. During the visit, an interface was organized for the current and future collaborative work in India between the Indian Council of Agricultural Research (ICAR) and CCAFS. Informed about CCAFS’ progress, the team headed for CSVs managed by CIMMYT in Karnal, Haryana on 25-26 August.

There are 27 CSVs; to initiate knowledge sharing, the team traveled to Anjanthali, Beernarayana and Taraori as well as other research sites. The team was welcomed with garlands to honor their work facilitating farmers’ actions to address climate change and enhance productivity. Interactive discussions with the team, scientists, farmers and partners occurred throughout the trip. A brief was presented on CSVs in Haryana and the climate-smart agricultural practices (CSAPs) being undertaken, both technological and mechanical. Farmers illustrated the laser levelers, turbo seeders and precision nutrient management. Moreover, they emphasized the importance of information and communications technologies (ICTs), which enable them to receive advance rainfall predictions.

Dr. Bruce Campbell interacts with women farmers connected to M(obile)solution.

In a stakeholder consultation involving CSV committee members, farmer cooperatives, national system partners and others, farmers described their experiences and benefits gained by adopting climate-smart technologies and practices. They also emphasized how farmer-to-farmer networking is helping in scaling-out this information. In a message from the State Department of Agriculture, Dr. Suresh Gehlawat, additional director, Haryana, validated the statement made by farmers based on his constant interaction with farmers and scientists to up-scale the activities and strengthen linkages. Dr. DK Sharma, director of the Central Soil Salinity Research Institute (CCSRI) at Karnal, explained CCSRI’s work in collaboration with the National Initiative on Climate Resilient Agriculture in India (NICRA) and CCFAS. CSSRI is developing salinity-tolerant varieties of basmati that can adapt to water reclamation. He also praised the CSV concept, and proposed that the techniques used by CSSRI can be linked with CSVs for better results.

Dr. Ishwar Singh, of CCS Haryana Agricultural University, applauded CIMMYT’s efforts to establish a capacity development platform for Ph.D. research students, who are conducting their research and also gaining practical knowledge and exposure. Campbell addressed the gathering, stating that the farming community plays a significant role in adapting to climate change and creating overall impact. He stated that–next to farmers–the most important part of the network is partnership with policymakers, and only then is the role of scientists accomplished.

John Recha, of the International Livestock Research Institute in Africa, was impressed with the efforts made by CSVs, and stated his intention to take information about the CSV model to his country; he hoped that farmers there can also reap the benefits of technological adoption and working in a collaborative model. Exchanging comments on climate change adaptation and its benefits, stakeholders expressed mutual satisfaction regarding commitments made for a sustainable future.

Work done on greenhouse gas (GHG) emission measurements under ICAR-CCAFS collaboration was explained by Dr. PC Sharma, Dr. HS Jat and Dr. Tek Sapkota, who described the CSSRI-CSISA platform. Dr. RC Upadhyay and Dr. AK Srivastava, director, National Dairy Research Institute (NDRI), Karnal discussed studies carried out on livestock, such as methane measurement, adaptation screening and other climate change facilities under the NICRA project, as a further scope of expansion under CCAFS. Next, a tree planting activity was conducted, symbolizing a greener future.

In a session organized by NDRI, Campbell made a presentation on challenges and opportunities in climate change, agriculture and food security. Adding to this, Dr. Philip Thornton, flagship 4 leader, CCAFS-ILRI, presented “Is the IPCC’s Fifth Assessment Report telling us anything new about livestock, climate change and food security?” In the open discussion, participants congratulated the team and asked about future action plans. Later, NDRI and the team formed a common platform to work in collaboration on a larger scale to address common issues.

To review the work on ICTs, the team visited Anjanthali to interact with women who are connected to M(obile)solution-CCAFS. Dr. Surabhi Mittal, a CIMMYT agricultural economist, Mr. Kamaljeet and Kisan Sanchar explained how messages are being delivered and how their efficient usage is ensured through proper monitoring software. Over 50 women participants presented their views in an interactive session, where they emphasized how access to information about climate-smart agriculture, weather information and conservation agriculture has enhanced their participation in household decision-making. Deissy Martínez Baron of the International Center for Tropical Agriculture (CIAT) interacted with women farmers and expressed the support the management team has for efforts made by farmers. Dr. M.L. Jat, CIMMYT-CCAFS South Asia coordinator, along with his colleagues and team, walked through the village of Taraori to witness the participatory strategic research on CSAPs and GHG measurements being taken. Dr. P.K. Aggarwal, regional program leader, South Asia International Water Management Institute (IWMI), monitored the visit and gave vital input.

After completing their visit, several members of the team sent complimentary emails. Campbell, in an email to the CCAFS contact point at CIMMYT, stated: “Just completed a great trip to India and some of the field sites. Especially had a great time with the CIMMYT team of ML, Surabhi, Tek and Jeetendra, amongst many others including the large numbers of students, partners and farmers. The work they are all doing is very impressive [in Karnal]. Very collaborative as well.” John Recha, participatory action research specialist, East Africa, said in an email, “I gained a lot of information from your team that I will implement in East Africa” and also noted that the communication materials will be used as resources, including the CSV profile, local language farm budget maintainence booklet and brochures developed by CIMMYT-IWMI. Leocadio Sebastian, regional program leader for CCAFS-Southeast Asia said in an email to Dr. P.K. Joshi, International Food Policy Research Institute, “I was also delighted to interact with you, Pramod and ML. I think we have lots to learn from your team in South Asia and I hope that bringing the Southeast Asia (SEA) team will help us jumpstart our work in SEA.  The challenge to learn fast is with us and the South Asia team has set a very good model.” Also Andrew Jarvis, theme leader flagship 1 of CCAFs, wrote in an email to Dr. Jat, “I was seriously impressed with what I saw, and must say that you are doing a real dynamo job with the climate smart villages. It only reinforced the importance of you leading our FP1 projects in South Asia.”

The well-organized and appropriately precise visit enabled the stakeholders to demonstrate their commitment and future goals toward climate smart agriculture. The cross-world exchange of experiences and mutual learning strengthened the building blocks for scaling-up and scaling-out a concept for a better and more sustainable future of agriculture.

CSISA: Making a Difference in South Asia

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Anu Dhar, Cynthia Mathys, Jennifer Johnson

Staff members of the Cereal Systems Initiative for South Asia (CSISA) are developing and implementing projects aimed at improving agricultural production and standards of living for farmers in South Asia, with excellent results. At their “Seed Summit for Enhancing the Seed Supply Chain in Eastern India” meeting in Patna, Bihar on 14-15 May they worked to design solutions to improve the delivery of high-yielding seed varieties in eastern India, a region that has traditionally suffered from lack of access to these varieties and low seed replacement rates. The meeting, which included over 60 seed experts from the government, research and private sectors, focused on topics such as better-targeted subsidies on seeds, improved storage infrastructure and stronger extension systems to increase accessibility and adoption of improved seed varieties.

The roundtable “Sustainable Intensification in South Asia’s Cereal Systems: Investment Strategies for Productivity Growth, Resource Conservation, and Climate Risk Management” was held on 19 May in New Delhi. It brought together 20 firms and entrepreneurs to build collaborative action plans and joint investment strategies under CSISA to identify new product tie-ins, joint ventures, technical collaborations and shared marketing channels in order to bring high-tech farming ideas to India’s risk-prone ecologies.

In India, CSISA seeks to increase crop yields through the provision of more accurate, location-specific fertilizer recommendations to maize and rice farmers with the “Crop Manager” decision-making tool. The web-based and mobile Android application uses information provided by farmers including field location, planting method, seed variety, typical yields and method of harvesting to create a personalized fertilizer application recommendation at critical crop growth stages to increase yield and profit.

CSISA-Nepal has initiated a series of participatory research trials in farmers’ fields, in order to promote maize triple cropping, the practice of planting maize during the spring period after winter crop harvesting, when fields would usually be fallow. The practice, while proven to be highly remunerative, is not widely popular. The trials seek to determine optimum management practices for maize in order to encourage triple cropping and to generate additional income for farmers.

Greater gender equality in agriculture is also an important goal of CSISA, supported through the creation of Kisan Sakhi, a support group to empower women farmers in Bihar, India by “disseminating new climate-resilient and sustainable farming technologies and practices that will reduce women’s drudgery and bridge the gender gap in agriculture.” A CSISA-Bangladesh project has already had a positive impact on the lives of rural women, providing new farming and pond management techniques that have helped them to greatly increase the productivity of their fish ponds and gain new respect within their families and communities.

AIP stakeholders share experiences with multi-crop bed planter in Pakistan

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CIMMYT, in collaboration with Wheat Research Institute Sindh (WRIS) and Pakistan Agriculture Research Council (PARC) supported by USAID, initiated pilot testing of a multi-crop bed planter for planting cotton and wheat in a cotton-wheat cropping system in Sakrand, Pakistan under the Agricultural Innovation Program (AIP) for Pakistan.

Dr. Imtiaz Hussain, cropping systems agronomist, explained how the multi-crop bed planter is used for planting various crops such as cotton, maize, pulses, rice and wheat on raised beds. This planter will help farmers cut farming operations and costs. It can be used to make beds, plant crop and apply fertilizer in one operation in a cotton-wheat cropping system.

A multi-crop bed planter is demonstrated during a recent AIP field day. Photo: Hira Khalid.

A field day was organized by WRIS on 27 August for the stakeholders to observe bed planted cotton, a demonstration of a bed planting operation, and discuss its use and performance. Over 150 new and aspiring farmers, agriculture extension workers, agriculture researchers and representatives from private seed companies observed the planting of mung beans using the multi-crop bed planter in the field.

Badar ud Din Khokahar, agronomist at WRIS, spoke about his experience with this new technology, noting the bed planted cotton had better germination and plant population in comparison with conventionally ridge planted cotton. The ability to apply fertilizer close to plant resulted in better crop growth.

The field day was followed by a discussion forum, where the participants expressed their interest in this new and emerging technology. During this session, farmers showed appreciation for the introduction of a multi-crop bed planter and showed their interest in using the planter for wheat crop next season. In response, Dr. Kareem Laghari, director at WRIS, recognized the efforts and cooperation of CIMMYT in the introduction of new technologies, and ensured that this technology will be transferred to the farmers for wheat and cotton planting.

Dr. Atta Somoro, director general Agriculture Research Sindh, acknowledged CIMMYT’s efforts in wheat research in the country and especially in the Sindh province. He recognized how CIMMYT’s work in the Green Revolution is highly valued. He also mentioned that the continuous inflow of germplasm and technologies from CIMMYT has helped to improve wheat productivity.

Dr. Shahid Masood, member of Plant Sciences within the Pakistan Agricultural Research Council (PARC), recognized how the efforts of CIMMYT and the support of the U.S. Agency for International Development (USAID) are very helpful in scaling up mechanized planting in this area, which will ultimately help to improve crop productivity, along with saving in water and improving fertilizer use efficiency.

Dr. Imtiaz Muhammad, country representative CIMMYT-Pakistan, informed the participants that AIP is focusing on improving the productivity of the wheat and maize through better germplasm, seed and better agronomy. The project focuses on increasing agricultural productivity and incomes in the agricultural sector across Pakistan, with more emphasis on smallholder farmers from provinces with less access to agricultural resources. This equipment will be tested and it will also be manufactured locally through this project, so that more and more farmers can benefit from these activities.

Kenyan government officials visit MLN screening facility

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“If I have not touched ugali, I have not eaten,” said engineer Menjo Mosonik, the Bomet County official in charge of agriculture and infrastructure. The saying is from his community where ugali, a dish made from maize meal, is a staple food. This is true of many communities in Kenya, where maize is a staple food and a key ingredient in daily meals.

The maize lethal necrosis (MLN) disease, which can cause up to 100 percent yield loss on farmers’ fields, is threatening this source of food and livelihoods for many in the country. Because of this, 40 county officials, including County Executive Committee (CEC) officials who are responsible for agriculture in Kenya’s devolved government structure, visited the CIMMYT MLN Screening Facility in Naivasha, Kenya on 5 August.

The facility could hold the key to addressing this lethal disease, which was first recognized in 2011 and has affected maize cultivation in many counties. The facility is hosted by the Kenya Agricultural Research Institute (KARI) center for livestock research, which is also the Regional Centre of Excellence for Dairy Research for East and Central Africa.

“We work in partnership,” said CIMMYT’s regional representative for Africa, Dr. Wilfred Mwangi, as he welcomed the CECs. “To show our commitment to overcoming MLN, CIMMYT brought our specialists from China and Mexico to help identify the disease when it was first observed in Kenya.”

CIMMYT pathologist Dr. George Mahuku gives a guided tour of the MLN Screening Facility in Naivasha, Kenya. Photo by Florence Sipalla.
CIMMYT pathologist Dr. George Mahuku gives a guided tour of the MLN Screening Facility in Naivasha, Kenya. Photo by Florence Sipalla.

The Food and Agriculture Organization of the United Nations (FAO) organized the visit and is supporting training sessions on the disease in major maize growing areas. So far, they have trained 320 participants in eight counties. “We wanted policy-makers to appreciate work being done by national and international research organizations to address MLN,” said Dr. Wilson Ronno, head of crop production at FAO-Kenya. “We realized we need to inform policy-makers, as this is a very sensitive issue of food security,” said Ronno, adding, “we are putting up demonstration sites in Bomet to show farmers how to manage the disease through good agricultural practices.”

The county officials were given a guided tour of the facility by Dr. George Mahuku, CIMMYT pathologist. As he showed them around the facility, Mahuku explained the research being carried out by CIMMYT, in collaboration with KARI and partners from the public and private sectors, to screen germplasm and identify sources of resistance to MLN.

“We are screening germplasm from different places in the [East Africa] region,” said Mahuku, adding that germplasm from Mexico and the United States has also been screened at the facility. “Because this is a new disease, we are also developing protocols on how to handle the viruses and screen germplasm for resistance. These protocols will be shared with our partners through training so that we are all well-coordinated in addressing the problem,” he added.

“There is hope,” said Mahuku as he pointed at germplasm that is showing tolerance to the deadly disease. He explained that CIMMYT is going to screen the germplasm in multiple environments. “This is why we really value partnerships,” he added, emphasizing the important role partners play in the research process.

The role of extension workers in managing diseases such as MLN was discussed, as they are instrumental in disseminating information on how to manage the disease. “Management is very important and is going to play a key role in minimizing or averting the devastating effects of MLN,” said Mahuku.

“This was a learning experience. We will be able to tell farmers what we have seen,” said Purity Muritu, who is in charge of agriculture in Nakuru County. Muritu said she would also explain to farmers the importance of having a maize-free season to break the MLN cycle. The CECs suggested that county officials visit the MLN facility to be sensitized on MLN and how to manage it.

Synthetic wheat in China continues to flourish due to grassy species

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By Zhonghu He, Garry Rosewarne and Wuyun Yang

A seed production crop of Chuanmai 104. This Provincial government initiative pays a private seed company to produce seed, which is then freely distributed to local farmers to facilitate the efficient uptake of this high- yielding variety. Photo: Garry Rosewarne.

Genes found in million-year-old grass species are helping scientists multiply the genetic diversity of wheat and generate varieties that yield more than eight tons of grain per hectare in southwestern China, where rain-fed wheat grows in low temperatures after sowing and winter droughts can hold back productivity.

Many wheat x grass crosses – known as “synthetic” wheats – were developed 25 years ago by a CIMMYT research team, and have since been used in breeding programs worldwide. The first synthetic variety to reach Chinese farms, Chuanmai 42, arrived in the Sichuan Basin in 2003, and allowed wheat farmers there to boost yields by as much as 20 percent – the most significant increase in the region for decades.

“Despite major research and breeding efforts, on-farm wheat yields in southwestern China had stagnated below eight tons per hectare,” said Dr. Zhonghu He, CIMMYT distinguished scientist and wheat breeder. “Chuanmai 42 and  more recent synthetic-derived varieties changed that. It has been the leading variety in the Sichuan Basin for a decade.” Chuanmai 42 was developed by Professor Wuyun Yang, senior wheat breeder at the Sichuan Academy of Agricultural Science (SAAS) and a CIMMYT wheat training graduate. “In 2011, the China State Council gave SAAS the scientific progress award for the creation of Chuanmai 42 and the exploration of genetic diversity from synthetic wheat,” He said.

A new report in the journal Crop Science (1) has shed light on the physiological differences that give Chuanmai 42 and other synthetic derivatives better yields. “In our three-year study, the synthetic crosses were more vigorous in early growth stages, and grew more above ground at flowering time than non-synthetic varieties,” said Dr. Garry Rosewarne, CIMMYT wheat scientist and co-author of the report. “At maturity, more dry matter was partitioned to grain in the synthetic varieties and the plants were more erect and compact,” he added. These differences gave the synthetics a nearly 12 percent yield advantage, according to Rosewarne. “It’s very encouraging to see the newer synthetic derivatives significantly out-performing Chuanmai 42,” he said.

A report published  in the journal BMC Plant Biology (2) in May describes a study that combines digital imaging of grain and molecular markers to analyze grain size and shape and their effects on yield in synthetic-derived wheat. This work was accomplished under the Valilov-Frankel Fellowship, involving scientists from institutes in Australia, China and Pakistan, as well as CGIAR Centers Bioversity International and CIMMYT. The study found that parts of the synthetic genome originating from a wild grass might carry genes that enhance grain weight, a key component of higher yield in wheat. “This study involved 231 synthetic derivatives,” said He, a co-author of the report. “It confirms the great potential of this type of wheat to help low- and middle-income countries meet the rising demand for wheat-based products, as their populations grow and urbanize.”

Dr. Abdul Mujeeb-Kazi, retired CIMMYT distinguished scientist who led the team that performed the original wheat x grass crosses 25 years ago, is also a co-author of the study.

1. Tang, Y., G.M. Rosewarne, C. Li, X. Wu, W. Yang, and C. Wu. 2014. Physiological factors underpinning grain yield improvements of synthetic derived wheat in South Western China, accepted paper, Crop Science, posted 07/29/2014. doi:10.2135/cropsci2014.02.0124.
2. Rasheed, A., X. Xia, F. Ogbonnaya, T. Mahmood, Z. Zhang, A. Mujeeb-Kazi, and Z. He. 2014. Genome-wide association for grain morphology in synthetic hexaploid wheats using digital imaging analysis. BMC Plant Biology 2014, 14:128 doi:10.1186/1471-2229-14-128