Climate change threatens to reduce global crop production, and poor people in tropical environments will be hit the hardest. More than 90% of CIMMYT’s work relates to climate change, helping farmers adapt to shocks while producing more food, and reduce emissions where possible. Innovations include new maize and wheat varieties that withstand drought, heat and pests; conservation agriculture; farming methods that save water and reduce the need for fertilizer; climate information services; and index-based insurance for farmers whose crops are damaged by bad weather. CIMMYT is an important contributor to the CGIAR Research Program on Climate Change, Agriculture and Food Security.
Climate projections indicate that maize breeders will have to start looking for traits that confer tolerance to simultaneous drought and heat stress, according to CIMMYT-CCAFS research. Photo: CIMMYT.
1 + 2 definitely equals 3. No one needs to question elementary math.
But what happens if you try to add words? Does peanut + butter = peanut butter? Not really. Enter the terms separately in a web search engine, and you’ll get a different result than if you enter the two together. And genes? As it turns out, basic addition won’t work with them, either.
Research from the International Maize and Wheat Improvement Center (CIMMYT) has elicited an unusual hiccup in breeding for stress tolerance in maize: drought tolerance + heat tolerance does not = drought and heat tolerance. That is to say, the genes responsible for tolerance to the combined stressors of heat and drought are not the same as the genes for tolerance to either of those stressors alone.
A maize plant that has been bred to tolerate high temperatures or drought, or even both, is distinct from a plant that has been bred to tolerate simultaneous exposure to both stressors – the latter has the “combo” trait, let’s say, while the others have the “solo” trait. Even if a variety features both of the solo traits, that doesn’t necessarily add up to the combo trait. This may seem like a small detail, but it means that when the combo drought/heat trait is not present a cultivar expressing drought tolerance could still experience markedly diminished yields when hit with a simultaneous blow of heat stress.
CIMMYT and CCAFS are now rolling out strategies to ensure that improved varieties are productive even when exposed to multiple, concurrent stressors.
The Drought Tolerant Maize for Africa (DTMA) project is an outgrowth of more than a decade of maize physiology research. It builds on more than 10 years of promoting the inclusion of selection for drought tolerance in maize breeding programs in Sub-Saharan Africa and the widespread development and regional testing of stress-tolerant varieties. DTMA is funded by the Bill & Melinda Gates Foundation with past support from the Howard G. Buffett Foundation, USAID, the UK Department for International Development (DFID), the Swiss Agency for Development and Cooperation (SDC), the German Federal Ministry for Economic Cooperation and Development (BMZ), the International Fund for Agricultural Development (IFAD) and the Eiselen Foundation. This blog post was originally published by CGIAR.
By Philippe Ellul/CGIAR
Smallholder farmer prepares maize plot for planting with CIMMYT improved varieties, Embu, Kenya. Photo: CIMMYT
Currently, maize production supports the livelihoods of approximately 300 million people in sub-Saharan Africa (SSA). Climate change variability and the prevalence of extreme events, especially droughts, are a harsh reality for smallholder farmers in Africa who depend on rainfed agriculture. Maize production in Africa is almost completely rainfed and droughts plague approximately a quarter of the maize crop, resulting in losses as high as half the harvest. Extended periods of droughts therefore, adversely affect not only crop yields but also the livelihoods of African farmers. Economic analyses suggest that, if widely adopted, drought-tolerant maize seed can help African farmers cope with such impediments.
On a recent visit to the annual meeting of the Drought Tolerant Maize for Africa (DTMA) initiative held in Nairobi, I was privy to some evidence of research impact in this area, which I found to be quite significant. The Drought Tolerant Maize for Africa (DTMA) project (launched in 2006) seeks to mitigate drought and other barriers to production in the region.
Tanzanian farmer on drought tolerant maize demonstration plot. Photo: Anne Wangalachi/CIMMYT.
Here are some highlights of key data on the measurable impacts of the DTMA project and a snapshot of some lessons learned during my time there. Not only will this information be useful for future partnerships but it can also be used to inform our processes during the 2nd call for proposals for the CGIAR Research Programs.
The DTMA project started in 2006. Here are the targets that the project has achieved thus far (in 2013) in terms of measurable impact:
◦140 new DTMA varieties released,
◦30,000 tons of seed (17,000 T from new varieties) produced last year in 13 African countries (Angola, Benin, Ethiopia, Ghana, Kenya, Malawi, Mali, Mozambique, Nigeria, Tanzania, Uganda, Zambia, and Zimbabwe)
◦An impact efficiency study (presented during the meeting) which indicated that several countries were able to reach their objectives in terms of seed production; Zimbabwe and Kenya were able to double their previous expected figures
◦ 110 African seed companies (72 small-national, 18 regional, 12 small and medium enterprises (SMEs), and 8 international enterprises) have adopted, produced and spread the new DTM varieties to local farmers,
◦ 1,230, 000 hectares planted with these new varieties, and
◦3 million households and 20 million people in total benefited and reached.
DTMA partners made certain that complete accountability was applied to the partnership network in order to ensure that the impact of research outcomes could be quantified. Thanks to this well-designed management model, researchers involved in the DTMA initiative were able to not only produce high quality research outputs but also ensure that research outcomes were adopted and scaled up. In addition, local facilities for Doubled Haploid (DH) production from tropical and sub-tropical maize germplasm have also been set up at the KARI (Kenyan Agriculture Research Institute) Kiboko Station.
Climate change research in Ethiopia must be nationally relevant for research outputs to be used broadly – from farms to influencing policy – a CIMMYT researcher said at the country’s National Climate Change Adaptation Workshop last month. The Biometrics, GIS and Agrometeorology Directorate (BGAD) of the Ethiopian Institute of Agricultural Research (EIAR) organized the event with CIMMYT, the CGIAR Research Program on Climate Change, Agriculture and Food Security (CCAFS) and the Rockefeller Foundation. More than 50 participants from CGIAR centers, the community, federal and regional research institutions, NGOs, the media and universities attended the workshop in Addis Ababa on 19 September. The purpose of the workshop was to receive feedback from stakeholders on the climate change research EIAR is conducting with its partners.
Major issues presented, discussed and displayed at the workshop included: decadal and seasonal climate forecast information provided to farmers; the mainstreaming of climate change; the trends and implications of extreme climatic events; downscaling future climate data for local climate change analysis; drought frequencies and trends; climate change vulnerability mapping; and climate database building. Fantahun Mengistu, Director General of EIAR, said climate change is already affecting Ethiopian agriculture in the form of frequent droughts and floods, which affect the livelihoods of millions of smallholder farmers. He added that the Ethiopian government is aware of the challenges posed by climate change and has policies, strategies and programs in place to increase the resilience of the agriculture sector and the economy, such as the national Climate Resilient Green Economy (CRGE) strategy.
CIMMYT’s Kindie Tesfaye said the major reason CIMMYT-CCAFS works with EIAR and other stakeholders in Ethiopia is to make its climate change research applicable on a national level. The climate research outputs generated by BGAD and partners were used as inputs during the development of Ethiopia’s CRGE strategy and in advising the firm developing the national climate change adaptation strategy. BGAD Director Andualem Shimelis highlighted the importance of agriculture in Ethiopia’s economy and its vulnerability to the threat of climate change. He said Ethiopia needs to adapt agriculture to the threat of climate change because agriculture is crucial in achieving food security and advancing rural development. Promoting integrated agricultural technologies and knowledge of climate science in Ethiopia’s development arena is not a choice, but a matter of survival, Mengistu said. All those involved in climate change research and development should work together in order to contribute to a climate-adapted agricultural sector and a climate-resilient economy in the country.
Partners from 13 countries working with the Drought Tolerant Maize for Africa (DTMA) project said they benefitted from its help during the 2012-13 crop season. DTMA trained maize breeders and technicians, rehabilitated seed storage facilities, supported research institutes and seed companies to release varieties and produce breeder seed and began hybrid seed production in places where seed companies did not exist. Project partners from eastern, southern and West Africa met in Nairobi, Kenya, from 23 to 27 September for DTMA’s annual meeting. They discussed progress made in developing and deploying drought-tolerant maize varieties to benefit smallholder farmers in Africa. Maize varieties that respond to climate change challenges – such as drought and infrequent or unevenly distributed rainfall – are key in helping those who depend primarily on rain-fed agriculture. The DTMA project is funded by the Bill & Melinda Gates Foundation.
Officials who opened the meeting included Thomas Lumpkin, director general of CIMMYT; Ylva Hillbur, deputy director general of the International Institute for Tropical Agriculture (IITA); Ephraim Mukisira, director of the Kenya Agricultural Research Institute (KARI); and Joseph De Vries, director of the Alliance for a Green Revolution in Africa (AGRA) Program for Africa’s Seed Systems (PASS). DTMA has released 140 drought-tolerant maize varieties since 2007, including 81 hybrids and 59 open-pollinated maize varieties. These varieties perform well under drought stress as well as adequate rainfall. “Over the last seven years, DTMA has made significant progress in developing and delivering improved technologies,” Lumpkin said. “Farmers have also benefited from [drought-tolerant] varieties that possess other desirable traits such as resistance to major diseases such as maize streak virus and gray leaf spot,” he added. Mukisira highlighted the partnership between CIMMYT and KARI. KARI centers in Embu, Kakamega and Kiboko, Kenya are part of the drought screening network and the organization’s socioeconomics team is working with DTMA on household surveys across the country. Mukisira said the collaboration produces evidence-based research findings that help inform and engage policy makers. CIMMYT and Kari recently opened two major maize research facilities in Kenya.
Meeting participants participated in the openings, which were inaugurated by Felix Koskei, Kenya’s Cabinet Secretary for Agriculture, Livestock and Fisheries and Sicily Kariuki, principal secretary for the Kenyan Agriculture, Livestock and Fisheries Ministry. Lumpkin thanked DTMA donors, especially the Bill & Melinda Gates Foundation, for supporting DTMA as well as the new maize doubled haploid and maize lethal necrosis screening facilities, the latter of which is co-funded by the Syngenta Foundation for Sustainable Agriculture. The national agricultural research system and small- to medium-sized seed companies working with CIMMYT maize projects such as DTMA will be key beneficiaries of these facilities.
Mukisira recognized the role seed companies play in deploying drought-tolerant seed for market and making it accessible to smallholder farmers. “We encourage you to continue investing in the marketing and promotion of improved droughttolerant maize varieties,” he said. Hillbur said the strong partnerships DTMA has built with the national agricultural research system and seed companies as well as the “top quality science approach involving the breeders, economists, social scientists and seed systems specialists” are two of the project’s distinguishing factors. DTMA Project Leader Tsedeke Abate said the project is moving toward its goal of reaching more than 30 million farmers with drought-tolerant maize varieties by the end of 2016. The national agricultural research systems will be key players in breeding and disseminating improved varieties, he said. Moving forward, the project will continue to help mainstream drought-tolerant varieties, enhance seed systems partnerships with AGRA-PASS, build the capacity of the national agricultural research system to produce breeder seed, mainstream gender and build on socioeconomic research to provide evidence for policy advocacy.
International and Pakistani scientists are expanding efforts to accelerate access to climate-resilient maize and rust-resistant wheat varieties in Pakistan, as well as to improve farmers’ access to quality seeds, as part of the Agricultural Innovation Program (AIP). Project partners discussed these priorities during a cereals and cereal systems meeting at the National Agricultural Research Center (NARC) in Islamabad from 29 to 30 August. AIP is a U.S. Agency for International Development (USAID)- funded project focusing on cereals, vegetables and livestock in Pakistan, a country challenged by rapid population growth and climate change.
CIMMYT is working with the Pakistan Agricultural Research Council (PARC), the International Rice Research Institute (IRRI) and other partners to increase agricultural productivity and the value of agricultural commodities in the country. The program is supporting Pakistan in agricultural research for development, which includes building partnerships between research and those it serves; increasing investments; generating, sharing and making use of agricultural knowledge for development; and demonstrating and building awareness of the development impact and returns from agricultural innovation. Farmers throughout the world face similar problems from increasing production costs, fluctuating market prices, water and soil degradation and potential implications of climate change, said Ken Sayre, a CIMMYT consultant on conservation agriculture. Sayre also described the benefits of conservation agriculture crop management technologies and their main principles.
These include seeding systems that allow major reductions in tillage, retaining adequate levels of crop residues on the soil surface and using diversified crop rotations. There are many challenges AIP can address. Maize yields in Khyber Pakhtunkhwa Province are low due to a lack of technology. Most maize farmers in Pakistan use manual sowing, which is not cost or time-effective, and farmers need more confidence in hybrid seeds before they will pay a premium for them. Meeting participants discussed several options for commissioned projects in wheat, including rapid diffusion of high-yielding, rust-resistant wheat; introducing fungicides for wheat management; and generating a durum wheat value chain in Pakistan. Participants also discussed potential projects and goals related to climate-resilient wheat, the cultivation of durum wheat in Balochistan province, the standardization of fungicides to combat yield losses and strengthening communication.
For the rice work plan, top priority areas include developing tolerance to submergence and heat in locally adapted varieties such as super basmati, basmati 515, IR-6 and IR 9, in addition to bacterial leaf blight resistance and superior grain quality. Abdul Rehman and Surapong Sarkarung represented IRRI, where some of the activities have already begun. Priorities for the maize work plan include introducing climateresilient maize hybrids, developing biofortified maize, developing cultivars with resistance to biotic stresses and strengthening the maize seed sector. CIMMYT maize expert R. Sadananda and national partners joined to refine the maize work plan. Kay Simmons from the U.S. Department of Agriculture (USDA)-Agricultural Research Service and Ian C. Winborne, plant health advisor for the USDA Animal and Plant Health Inspection Service at the U.S. Embassy in Islamabad, also attended the meeting to discuss wheat productivity enhancement in Pakistan.
Felix Koskei, Kenya’s Cabinet Secretary for Agriculture, unveils the plaque of the Doubled Haploid Facility in Kiboko, Makueni County. Looking on is Bodduppali Prasanna, director of CIMMYT’s Global Maize Program (Left), Thomas Lumpkin, director general of CIMMYT and Ruth Kyatha from the Makueni County Cabinet Secretary for Agriculture. Photo: Wandera Ojanji
CIMMYT, in partnership with the Kenya Agricultural Research Institute (KARI), established two major maize facilities in Kenya last week. The Maize Doubled-Haploid Facility for Africa at KARI-Kiboko aims to accelerate the development of stress-resilient and nutritionally-improved maize varieties while the Maize Lethal Necrosis Screening Facility at KARI-Naivasha will focus on tackling deadly maize lethal necrosis (MLN).
The doubled-haploid (DH) facility, established with funding support from the Bill & Melinda Gates Foundation, was inaugurated on 25 September by Felix K. Koskei, Kenya’s cabinet secretary for Agriculture, Livestock and Fisheries. Representatives from the ministry and country government, the CIMMYT board of trustees and management committee and the KARI director and board of management attended the inauguration. “Just as agriculture is the driver of economic growth, so is agricultural research the engine of agriculture,” Koskei said. “I take this opportunity to congratulate maize research scientists for their tireless efforts in conducting cutting-edge agricultural research directed at solving the constraints that hinder agricultural growth.”
The facility will help serve African agriculture for years to come, said CIMMYT Director General Thomas Lumpkin. “The Maize DH Facility will be key to fast-tracking the development and delivery of drought tolerant, disease and insectpest resistant and nutritionally enriched maize varieties for the benefit of Kenyan and African farmers at large,” he said. The MLN screening facility will address another challenge: while maize is Africa’s most important food crop, the 2011 drought in East Africa – combined with the emergence of MLN in eastern Africa in 2012 – resulted in significant crop losses and severe food shortages across the region. The accelerated development and delivery of MLNresistant maize varieties with other important adaptive traits is an urgent priority for CIMMYT and its partners in the region. The MLN Screening Facility at KARI-Naivasha is central to achieving this goal and was made possible with funding support from the Bill & Melinda Gates Foundation, and the Syngenta Foundation for Sustainable Agriculture.
Thomas Lumpkin waters a commemorative tree seedling he planted after the inauguration of the DH Facility in Kiboko. Photo: Wandera Ojanji
Inaugurating the MLN Screening Facility at KARI-Naivasha, Kenya’s Principal Secretary to the Ministry of Agriculture Sicily Kariuki commended CIMMYT and KARI for their rapid response to MLN and for establishing a screening facility that will benefit the entire region. The facility aims to provide MLN phenotyping services and effectively manage the risk of MLN on maize production through screening and identifying MLNresistant maize germplasm. It will make use of public and private sector research partners in Africa to contribute to food security and to the livelihoods of farming communities in Eastern Africa. Through the KARI-CIMMYT partnership, several promising maize inbred lines and hybrids with resistance to MLN have Photo: Florence Sipalla already been identified and are being further validated and used in breeding strategies to develop MLN-resistant maize hybrids. Prasanna Boddupalli, director of the CIMMYT Global Maize Program, emphasized the facility “will serve not only CIMMYT and KARI, but other interested public and private sector institutions that are engaged in developing and delivering improved maize varieties to farmers in Africa.”
A new facility at CIMMYT-Hyderabad, India, will allow researchers to assess and quantify key root traits and their dynamics under various growing conditions. CIMMYT’s new root phenotyping facility is based on the lysimetric system, by which scientists can directly assess and quantify root traits and their dynamics under various growing conditions. It also allows high-precision phenotyping of various root traits.
A high-profile delegation from Groupe Limagrain, led by its CEO, visits the newly-established root phenotyping facility at CIMMYT-Hyderabad, India. Photo: T. Durga/CIMMYT
The system revolutionizes the research, moving from a static assessment of roots through time-consuming extraction and scanning to a real-time measurement of water uptake, water use and an assessment of variation in roots under different growing conditions in the rhizosphere. Recent advances in high-precision weighing systems and information technology tools have greatly improved its efficiency and effectiveness as a root phenotyping system.
A representative from USAID observes maize root extracted from a minirhizotron. Photo: T. Durga/CIMMYT
CIMMYT’s root phenotyping facility is specially designed for – but not restricted to – maize. The facility features 2,400 minirhizotron observation tubes placed in eight concrete pits. A wheeled stand is used to lift the rhizotrons for weighing. The weight of the cylinder, along with the entire plant, is monitored periodically and allows researchers to estimate the amount of water used and transpired as well as the transpiration efficiency of different genotypes. Roots are critically important to plants because they are the part first exposed to any soil-mediated stresses, such as drought, waterlogging, salt stress or nutrient stress. Root traits govern the overall performance of plants; however, this important hidden half is often avoided due to the complexity involved in studying root structure and functions.
Mini-rhizotrons with maize plants sit at the root phenotyping facility. Photo: T. Durga/CIMMYT
In maize, the genotypic variation in root traits and variation under stresses can be carefully selected in targeted breeding for stress tolerance, which can contribute significantly to genetic gains. Root traits are often judged on the basis of related characteristics, which may not accurately explain the stress-responsive — or adaptive — structural and functional changes in roots under sub-optimal or stressed conditions. The facility is used in phenotyping root traits of mapping populations developed for various molecular breeding projects on drought and heat stress tolerance as well as other traits usually observed in field conditions, including morphological traits and grain yield. It is located under a renovated rain shelter, protecting the trials from rain at the targeted crop stage and allowing for yearround use.
Visitors see a demonstration on greenhouse gas measurements in CIMMYT’s long-term trial on conservation agriculture in rice-wheat systems at the Rajendra Agricultural University farm, Pusa. Photo: Deepak Kumar Singh/CIMMYT
Increased access to seeds better suited for local conditions and climate-smart crop management technologies are two strategies Bioversity International and CIMMYT India are using to improve the climate change resilience of resource-poor farmers. With the 14 August visit of Bioversity International Director General Ann Tutwiler to the Borlaug Institute for South Asia (BISA) Pusa site and the climate-smart villages in the Vaishali district of Bihar, this partnership has strengthened and will work to improve farmers’ coping and adaptation to climate change in eastern India. The groups are working under Climate Change, Agriculture and Food Security (CCAFS).
Agriculture is affected by variable temperatures and erratic climate events. Smallholder farmers who are impacted suffer from low production and increasing costs. Tutwiler said that CIMMYT, BISA and Bioversity have common interests and should complement each other’s work in making smallholder farmers climatesmart through local adaptation of stress-tolerant seeds and integrating them with better agronomic management. The greatest need is in multi-stakeholder partnerships and to apply collective wisdom to address these challenges for farmers’ benefits, she said.
M.L. Jat shows resilient cropping system options for eastern Indo-Gangetic plains at BISA farm, Pusa. Photo: Deepak Kumar Singh/CIMMYT
Tutwiler and other visitors saw strategic research on conservation agriculture at the BISA farm as well as collaborative research between CIMMYT and the Indian Agricultural Research Institute (IARI). Participants discussed the long-term benefits of conservation agriculture, such as increased productivity, improved soil fertility, cost savings and reduction of greenhouse gas emissions. “At Pusa, we have established long-term research on conservation agriculture in predominant cropping systems to monitor and devise resilient future cropping systems and their component technologies for the eastern Indo Gangetic Plains,” said M.L. Jat, a CIMMYT senior cropping systems agronomist. “These work as capacity-building platforms for various stakeholders.”
The team also saw climate-smart technologies promoted by CIMMYT in collaboration with other CGIAR centers and national agricultural research and extension services under CCAFS. Mamta Kumari, a woman farmer from the climate-smart village Rajapakar said, “Rainfall has been unreliable for the last few years. Our crops and livelihoods are at risk with changing weather. But we are now getting more information about new seed, methods and technologies; we can see a change.” With access to timely information on weather, better-adapted seeds and improved crop management, women farmers are now feeling more empowered. “We are saving around 5,000 Rupees (about US$79) on the cost of production using zero tillage in wheat cultivation,” Kumari said. Tutwiler met and shared her experiences with CIMMYT Director General Thomas Lumpkin and discussed common goals of Bioversity, BISA and CIMMYT to improve lives of farmers under changing climate conditions
A new pilot program is trying to reach farmers in India with information on weather, pests and climate change — through their mobile phones. CIMMYT launched the “Dissemination of climate smart agro-advisories to farmers in CCAFS benchmark sites of India” project on 15 August in four villages of the Karnal District in the State of Haryana and in the Vaishali District in the State of Bihar on 1 September. The project is led by CIMMYT‘s Surabhi Mittal with IFFCO Kisan Sanchar Limited as the content partner and Kisan Sanchar as the dissemination and implementing agency.
The project has aims to help farmers clarify information about climate-smart technology; help them adopt technologies that could mitigate their risks due to climate change; and to measure how receiving information on mobile phones affects farmers. Its reach covers 1,200 male and female farmers in eight villages and will run for 8 months on a pilot level. Farmers whose mobile numbers are in the project database receive two voice messages every day along with detailed SMS messages – in Hindi when required. These messages give weather predictions, information about pests and remedies, details of climate smart technologies and general information about climate change and solutions. Some farmers belong to the CGIAR Research Program on Climate Change, Agriculture and Food Security (CCAFS) climate smart villages and some belong to control villages in the Karnal and Vaishali districts.
Challenges building this mobile number database included farmers who could not receive messages from unknown numbers. The project team worked with farmers to authorize the messages and get permission from the Telecom Regulatory Authority of India to unblock them. Encouraging women to participate was another hurdle. Due to cultural barriers, men were not willing to share the contact numbers of their wives. Awareness and focus group discussions held in Karnal from 29 to 30 August helped solve the issue. Project Leader Mittal met the Sarpanch, or the elected head, of the villages as well as with government women health workers known as Anganwadi workers. The four villages in Karnal have women Sarpanch, helped mobilize women farmers and women in households headed by men. In Bihar, a female scout is working closely with women farmers and has created women’s groups to for the project.
Photo credit: S. Mittal/CIMMYT
Customized feedback is built into the project. First, a helpline allows farmers to give feedback and ask for responses to questions. Some questions are instantly sorted out, some are diverted to other experts and some responses are collected and the farmer is called later. The feedback is converted the next day into voice messages if it is relevant to a wider group of farmers. The other form of feedback is filtered back by field scouts who interact closely with the farmers, frequent focus group discussions and through a bi-weekly structured feedback form. Efforts are being made to make the information more relevant, timely, customized and useful for the farmers. The research and field teams have to work closely and proactively to meet the farmers’ diverse requests. Efforts to compile farmers’ correct phone numbers and to make farmers aware of the benefits of learning about new technologies are great challenges. But the enthusiasm of farmers – shown through an increased listening rate to the voice messages and an increasing number of calls to the helpline – is a great motivation for the project team.
Article author Surabhi Mittal was quoted in India’s Financial Chronicle on the subject. Read the story here.
CSISA scientists address farmers’ concerns on Direct Seeded Rice method in Haryana
The Dry Direct Seeded Rice (DSR) method is gaining popularity in north India, thanks to the researchers, agricultural departments, and enterprising farmers of Punjab and Haryana who have made efforts to implement it on a large scale. Faced with the threats of depleting groundwater, shortage of farm labor, rising production costs, and climate variability, more and more farmers are adopting this alternative method of sowing rice. It promises to be both environmentally friendly and cost efficient.
Compared to the more widely used method where seeds are first germinated in a nursery and then the rice seedlings are manually transplanted to the fields, DSR involves sowing seeds directly in the fields with the help of a machine called a Multi Crop Planter. This technique has been popular in some developed countries of the world, including the U.S., but is new for farmers in India. The Ministry of Agriculture of the Government of India has been promoting this technique through its two flagship schemes, the National Food Security Mission (NFSM) and Rashtriya Krishi Vikas Yojna (RKVY). DSR brings many benefits to farmers—it reduces cultivation costs by 5,100 rupees (78 USD) per hectare, reduces water consumption by 25%, and increases profitability up to 4,600 (70 USD) rupees per hectare. “Moreover, when wheat is grown after a crop of DSR, wheat productivity has been found 8 to 10% higher than when grown after a crop of conventional cultivated rice,” says Virender Kumar from CSISA.
Reports find DSR effective in reducing emissions of methane, a potent greenhouse gas responsible for global warming. CCAFS and Greenhouse Gas Emission quantification project are studying the benefits of conservation agricultural practices, like zero tillage DSR, on greenhouse gas emissions. “For each tonne of rice production with conservation agriculture based management practices, on average 400 kg CO2 equivalent was reduced compared to conventional puddled transplanted rice,” says ML Jat from CCAFS.
Haryana promotes direct seeded paddy
The State Agriculture Department, Haryana Agricultural University, and Farmers Commission are now promoting the use of DSR in Haryana because of its benefits. Four years ago, only 226 hectares of area was under DRS in Haryana. This number has increased to 8000 hectares in 2012 and is targeted to cover 20,000 hectares in 2013. However, access to effective weed management and cost-effective herbicides still remain a challenge and will affect the success of this technology in the long term.
As with any new technique, the phase of building awareness, training and responding to farmers’ concerns is integral to making DSR technique successful. Cereal Systems Initiative for South Asia (CSISA), a project funded by Bill & Melinda Gates Foundation and USAID along with other stakeholders, launched a campaign in May to encourage farmers to adopt DSR in Haryana. The campaign included technical trainings on DSR for farmers and service providers, meetings with different stakeholders to identify and solve the problems of availability of inputs including machinery and seed, mass-media programs like radio talks, and distribution of pamphlets in the local language. The campaign reached the farmer at the field and village level for their direct feedback and to understand their problems. “Synergy between different public-private stakeholders, feedback from farmers, and technical inputs to the farmers at the right time are necessary after a series of intensive trainings to make a transformation like Direct Seeded Rice technology a success,” says B.R. Kamboj from CSISA. CSISA, in collaboration with IFC-Dunar Foods Limited and the Haryana State Department of Agriculture, organized a travelling seminar on 14 August in different villages of the Asandh block of the Karnal district. Farmers highlighted their concerns, which included late availability of the subsidized inputs such as seeds, herbicides, and machinery, and weed problems even after the proper application of herbicides.
Responding to various issues, representatives from the organizations suggested the application of preemergence herbicide, which prevent the germination of weed seeds such as pendimethalin, is necessary for effective weed management in DSR; on machinery, farmers could establish farmer cooperatives and pool resources to purchase the machinery; on less germination, sowing should be done by the expert service providers. It is also critical to use the proper setting of the sowing depth of the machine. The participants also visited the DSR fields of different villages including Balla, Salwan, Dupedi, and Padhana. While the crops looked very healthy, symptoms of zinc deficiency and excessive use of urea were seen. B. R. Kamboj demonstrated how to identify the weeds and advised on judicious use of pesticides for effective control of insects, diseases, and weeds. To ensure a good harvest from the DSR fields, the next step is timely control of insects and pests. Farmers must learn to identify the insect and pests and the right stage to control them. The Department of Agriculture will provide regular visits and trainings on insect pest management (IPM) in some identified DSR villages. “This will be a very important activity to build the confidence in the farmers to continue using DSR technique,” Kamboj says.
Nine of the CMLs in the list have already proven their mettle in breeding programs in sub-Saharan Africa. For example, CML541 and CM542 are among the constituent lines of ZM309, an improved, early-maturing, drought tolerant open-pollinated variety widely used for commercial cultivation in several African countries. Others have been used as parental lines for commercial hybrids.
CIMMYT is pleased to announce the release of 22 new CIMMYT maize lines (CMLs). Developed through repeated cycles of selection and self-pollination of single plants, inbred lines are the building blocks of maize genetics and breeding. These lines can be crossed to produce high-yielding hybrids or open pollinated maize varieties. The lines were developed at various breeding locations of CIMMYT Global Maize Program by multi-disciplinary teams of scientists. These lines are adapted to tropical/subtropical maize production environments targeted by CIMMYT and the partner institutions. CMLs are freely available to both public and private sector breeders worldwide under CIMMYT’s standard material transfer agreement (SMTA).
Prior to their release, CMLs are intensively evaluated for per se performance (especially under abiotic and biotic stresses) and performance in hybrid combinations (combining ability). The descriptions accompanying the released lines include heterotic group classification and information on their specific combining ability with some widely-used CIMMYT lines. Instances where CMLs within a given heterotic group have good combining ability with other lines from the same heterotic group are also cited; the resulting hybrids may be useful either as single-cross products or as female parents of three-way or double-cross hybrids. Nine of the CMLs in the list have already proven their mettle as parental lines of commercial maize cultivars in sub-Saharan Africa. For example, CML541 and CM542 are among the constituent lines of ZM309, an improved, early-maturing, drought tolerant open-pollinated variety widely used for commercial cultivation in several African countries (see “ZM 309 gets presidential nod in Malawi”). Seven other CMLs (CML544 to CML548, CML558 and CML561) have been used as parental lines of commercial hybrids in sub-Saharan Africa. To obtain small amounts of seed of the newly released CMLs, send a request to the CIMMYT Germplasm Bank.
CIMMYT is pleased to announce the release of 22 new CIMMYT maize lines (CMLs). The CMLs were developed at various breeding locations of CIMMYT Global Maize Program by multi-disciplinary teams of scientists. These lines are adapted to the tropical/subtropical maize production environments targeted by CIMMYT and the partner institutions. CMLs are freely available to both public and private sector breeders worldwide under CIMMYT’s standard material transfer agreement (SMTA).
Prior to their release, the CMLs are intensively evaluated for per se performance (especially under abiotic and biotic stresses) and performance in hybrid combinations (combining ability). Release of a CML does not guarantee high combining ability or per se performance in all environments; rather, it indicates that the line is promising or useful as a hybrid component or as a parent for pedigree breeding for one or more target mega-environments. The descriptions of the lines include heterotic group classification, along with information on their specific combining ability with widely-used CIMMYT lines. Instances where CMLs within a given heterotic group have good combining ability with other lines from the same heterotic group are also cited; the resulting hybrids may be useful either as single-cross products or as female parents of three-way or double-cross hybrids. Some of the new releases and previously-released CMLs have already been used as parents of successful hybrids or improved open pollinated varieties (OPVs) by public and private sector institutions. A brief description of each of the 22 new CMLs is presented below (the information in parentheses for each CML is the line code).
Further details about the lines are provided in CML540-561 Details. A limited quantity of seed of the CMLs can be obtained by sending a request to the CIMMYT Germplasm Bank.
CML540-561-Details
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CML540 (CZL00009)
An early-maturing, drought tolerant late-maturing resistance to maize streak virus (MSV), turcicum leaf blight (TLB), common rust (PS), and gray leaf spot (GLS). This line is classified as a CIMMYT heterotic group A line and combines well with CML395 and CML444. The line is producible as a male or female parent.
CML541 (CZL0717)
An early-maturing, white-grained, flint inbred late-maturing resistance to MSV and good drought tolerance. This line is classified as a CIMMYT heterotic group B line and combines well with CML312 and lines derived from the Zimbabwe Early White A (ZEWA) synthetic. The line is a component of the commercial OPV ZM309, which has been released for commercial cultivation in several African countries.
CML542 (CZL0723)
An early-maturing, drought tolerant late-maturing resistance to MSV. This line is classified as a CIMMYT heterotic group A line and combines well with CML395, CML444, and lines derived from Zimbabwe Early White B (ZEWB) synthetic. The line is a component of the commercial OPV ZM309, which has been released in several African countries. The line is usable either as a male or female parent.
CML543 (CKL05003)
A late-maturing inbred line with white, semi-dent grain. This line is classified as a CIMMYT heterotic group B line and combines well with CML442, CKL5005 and CKL5017. The line also combines well with group B tester CML444. The line was developed from sources combining MSV resistance and drought tolerance. It has excellent combining ability for grain yield, and is resistant to TLB, and tolerant to MSV, GLS and Diplodia ear rot. CML543 has moderate resistance to maize lethal necrosis (MLN). The line can be used as either a male or female for seed production.
CML544 (CZL0610)
An intermediate-maturity, white-grained, semi-dent inbred line that has moderate-to-high levels of resistance to common midaltitude foliar diseases – MSV, TLB, GLS, Phaeosphaeria leaf spot (PLS) and PS. This line is classified as a CIMMYT heterotic group B line and combines well with CML488, CML443, and CML312. The line also combines well with group B tester CML202. It has moderate-to-excellent combining ability, especially under drought and low soil N. The line can be used as male or female for seed production, and has been used in several commercial hybrids in eastern and southern Africa.
CML545 (CZL0619) An early-maturing, white-grained, dent-type inbred line that has high levels of resistance to common mid-altitude foliar diseases (MSV, TLB, GLS, PLS, PS) and tolerance to low soil N and flowering stage drought. This line is classified as a CIMMYT heterotic group A line and combines well with CML488, CML395, CML443, and CML441. The line also combines with the group A line CML548. The line exhibits excellent combining ability, especially under low soil N stress. The line is best used as a male in three-way hybrid formation, although it can also be used as a component of early-maturing single-cross females. It has been used in one commercial hybrid in southern Africa.
CML546 (CZL0713)
An intermediate-maturity, white-grained, large semi-flint type inbred line with adequate levels of resistance to common mid-altitude foliar and ear diseases, especially MSV and GLS, and tolerance to low soil N stress. This line is classified as a CIMMYT heterotic group B line and combines well with CML197, CML312, and CML488. The line also combines well with group B tester CML202. The line exhibits excellent per se productivity, has good standability, and is a good combiner under both optimum and abiotic stress conditions. It can be used as a male or female parent, and is a component of one commercial hybrid in southern Africa.
CML547 (CZL00003)
An intermediate-to-late-maturing, large white-grained, semi-flint inbred line with adequate levels of resistance to TLB, GLS, and PLS. This line is classified as a CIMMYT heterotic group B line and combines well with CML197, CML312, and CML488. The line also combines well with group B testers CML202 and CML444. The line is drought tolerant and a good general combiner across optimum and abiotic stress conditions. It exhibits average per se productivity but has excellent plant type and standability. The line is best used as a component of intermediate-to-late-maturing single-cross females and has been used in several commercial hybrids in eastern and southern Africa.
CML548 (CZL054)
A white-grained, semi-flint, intermediate-maturity inbred line with good levels of resistance to MSV, TLB, GLS, PLS and PS, and moderate resistance to MLN. This line is classified as a CIMMYT heterotic group A line and combines well with CML489 and CML444. The line also combines well with group A testers CML197, CML312, and CML545. The line is drought tolerant, has good per se productivity, and is an excellent combiner under optimum conditions and drought stress. It is best used as a male parent in three-way hybrid formation, although it can also be used as a parent of single-cross females. The line has been used as a parent in one commercial hybrid in southern Africa.
CML549 (CLWRCW105)
A late-maturing, white semi-dent tropical late-maturing excellent overall combining ability in optimal, low N, and drought conditions. This line is classified as a CIMMYT heterotic group A line and combines well with CML494 and CML550. The line also combines with group A tester CML498. The line has good resistance to foliar diseases and ear rots, and can be used as a seed parent for single-cross hybrids due to its high per se yield.
CML550 (CLWN201)
An intermediate-maturity, white flint tropical line with excellent combining ability under low N and drought conditions, but average performance under optimal conditions. This line is classified as a CIMMYT heterotic group B line, and combines well with CML495, CML549, and CML552. The line can be used as a donor for low N stress tolerance. The line has good per se yield and could be used as female parent. It has moderate susceptibility to maydis leaf blight and TLB.
CML551 (CL02720)
A late-maturing, yellow flint tropical line with excellent combining ability across optimal and drought stress conditions. This line is classified as a CIMMYT heterotic group B line, and combines well with CML286, CLRCY017, and CLRCY041. The line has good per se yield and resistance to ear rots, but is susceptible to TLB and stem lodging. It is more suited for use as a female seed parent than as a male parent.
CML552 (CLRCW99) A late-maturing, white semi-flint tropical line with excellent combining ability under both optimal and high density conditions. This line is classified as a CIMMYT heterotic group A line, and combines well with CML494, CML550, and CLWN247. The line can be used either as a male or female parent in seed production.
CML553 (CLWN206)
A late-maturing, white flint, tropical line with excellent combining ability across optimal and stressed environments. This line is classified as a CIMMYT heterotic group A line, and combines well with CML494, CML550, and CLWN247. The line has excellent resistance to ear rots, but is slightly susceptible to maydis leaf blight. Due to its lower-than-average per se yield, it is best used as a male parent for hybrid seed production.
CML554 (CLQRCWQ131)
A late-maturing, white flint, QPM tropical line with excellent combining ability under optimal conditions and abiotic stress. This line is classified as a CIMMYT heterotic group A line, and combines well with CML503, CLRCWQ130, and CLRCWQ122. The line has good per se grain yield, good endosperm modification, and resistance to TLB. The line is best suited for use as a female seed parent.
CML555 (CLQRCWQ26) An intermediate-maturity, white-grained, semi-flint, QPM tropical line with excellent combining ability under low N conditions. This line is classified a CIMMYT heterotic group A line, and combines well with CML503, CLRCWQ130, and CLRCWQ123. The line has excellent per se yield, good endosperm modification, and is usable either as a seed or pollen parent.
CML556 (CLQRCWQ123)
A late-maturing, white grained, semi-dent, QPM line with excellent combining ability under optimal, low N, and drought conditions. This line is classified as a CIMMYT heterotic group B line, and combines well with CML491, CML553, and CML554. The line has good per se yield and can be used either as a male or female parent.
CML557 (CLQRCWQ48) A late-maturing, white-grained, semi-flint, QPM line with excellent combining ability under optimal conditions and very good performance under low N and high density stress. This line is classified as a CIMMYT heterotic group AB line and combines well with CML491, CML554, and CML555. The line has good root strength, excellent per se yield, and good endosperm modification. It can be used as either as a male or female parent.
CML558 (CETL08003) A late-maturing, white-grained, flint-type highland line with resistance to the most important highland diseases, especially TLB and PS. This line is classified as a CIMMYT heterotic group AB line. The line combines with materials from both the Kitale and Ecuador highland groups. The line has excellent combining ability and good per se yield, and can be used either as a female or male parent for hybrid seed production. It has been used as a parent in one three-way cross released in Ethiopia.
CML559 (CKIRL08062) An intermediate-maturity, white grained line adapted to the mid-altitude ecologies of eastern and southern Africa. This line is classified as a CIMMYT heterotic group AB line as it combines well with CML442, CML204, and CML312. The line is resistant to spotted stem borer (Chilo partellus) and African stem borer (Busseola fusca), the major field insect pests of eastern and southern Africa, and also has appreciable levels of resistance to MSV and other common foliar diseases, including TLB and GLS.
CML560 (CKIRL08104)
An intermediate-maturity, white-grained inbred line adapted to the midaltitude ecologies of eastern and southern Africa. This line is classified as a CIMMYT heterotic group B line as it combines well with CML312, CML202, and CML442. The line is resistant to spotted stem borer (Chilo partellus) and African stem borer (Busseola fusca). The line also has appreciable levels of resistance to MSV and other common foliar diseases, including TLB and GLS.
CML561 (CETL08001)
An intermediate-maturity, white-grained, flint-type highland line well-adapted to the midaltitude ecologies of eastern Africa. This line is classified as a CIMMYT heterotic group B line with resistance to TLB and PS. The line has excellent combining ability, per se productivity, and can be used both as a female or male parent. The line is being used as a parent in one three-way cross hybrid released in Ethiopia.
Mobile phones promise new opportunities for reaching farmers with agricultural information, but are their potential fully utilized? CIMMYT’s agricultural economist Surabhi Mittal and IRRI’s economist Mamta Mehar argue that institutional and infrastructural constraints do not allow farmers to take full advantage of this technology. In India, agro-advisory service providers use text and voice messaging along with various mobile phone based applications to provide information about weather, market prices, policies, government schemes, and new technologies. Some service providers, such as IKSL, have reached more than 1.3 million farmers across 18 states of India. But what is the real impact of such services? Are messages available at the right time? Do they create awareness? Do they strengthen farmers’ capability to make informed decisions? Are they relevant to his or her farming context?
Mittal and Mehar say there is still a long way to go. While farmers get information through their mobile phones, it is often general information irrespective of their location and crops, which is information they cannot effectively utilize. In 2011, CIMMYT conducted a survey with 1,200 farmers in the Indo-Gangetic Plains; the survey revealed the farmers needed information on how to address pest attacks and what varieties better adapt to changing climatic conditions. Instead, they received standard prescriptions on input use and general seed varietal recommendations. To provide the information farmers really need, dynamic databases with farmers’ land size, cropping pattern, soil type, geographical location, types of inputs used, variety of seed used, and irrigation must be developed.
Sustainability is another problem. Such agro-advisory projects require continued financial assistance; when money runs out, the project ends and the people are again left without information, feeling cheated and without trust for any similar project that may come in the future. There is a need to assess the willingness of farmers to pay for these services and develop sustainable business models, say Mittal and Mehar. Furthermore, it has been shown that the benefits of mobile phone services are not reaching the poor, as they do not have access to the technology despite its increasing availability. The main beneficiaries of the mobile phone revolution are the ones with skills and infrastructure, and the poor are thus left even further behind.
What can be done? Agro-advisory providers need to develop specific, appropriate, and timely content and update it as often as necessary. This cannot be achieved without a thorough assessment of farmers’ needs and their continuous evaluation. To ensure timeliness and accuracy of the provided information, two-way communication is necessary; Mittal and Mehar suggest the creation of helplines to provide customized solutions and enable feedback from farmers. The information delivery must be led by demand, not driven by supply. However, even when all that is done, it must be remembered that merely receiving messages over the phone does not motivate farmers to start using this information. The services have to be supplemented with demonstration of new technologies on farmers’ fields and through field trials.
For more information, see the full article published on the AESA website. This work is based on the ongoing research at CIMMYT’s Socioeconomics Program funded by CCAFS.
Farming systems all over the world face complex problems in terms of production, such as natural resource depletion, climate change, increasing food demand, and volatile prices. Farmers have to adapt to continuously changing conditions to produce food. ‘Farming systems design’ is an approach that aims at modifying designs of farming systems to sustainably increase the overall productivity and profitability of the systems—and, hopefully, the welfare of individual farming families—while considering interactions in the system. Interactions are important features of farm system structure and operation. They may occur between the various components, including crop-crop, crop-livestock, and farm-household as well as on-farm-off-farm activities as they compete for the same resources.
More than 70 papers on systems research were recently presented at the 4th International Farming Systems Design Symposium in Lanzhou, China. CIMMYT researchers were represented by Bruno Gérard, director of the Conservation Agriculture Program, and CIMMYT agronomists Santiago López Ridaura, Tek Sakpota, Isaiah Nyagumbo, and Jack McHugh. The conference took place from 19- 22 August and was organized by WHEAT CRP Chinese partner Gansu Academy of Agricultural Sciences and others. Research with a farming systems perspective can have various objectives ranging from increasing the amount of knowledge about farming systems to solving specific problems in the farming system. If it is commonly agreed that cross-links between disciplines and participatory approaches are needed to provide solutions, “there is no silver bullet approach to be expected,” said keynote speaker David Norman, professor emeritus of agricultural economics at Kansas State University and pioneer in the field of Farming Systems Research (FSR). “The most important is to take into account the whole farming system and bring together all stakeholders,” Norman explained. “If a project works on one crop, like CIMMYT on maize for instance, FSR would look at how maize impacted if they have livestock, the influence on livestock components, etc. The reductionist approach would look at how improving productivity of one item without considering the whole farming system.”
For Peter Carberry, chair of the Program Committee and deputy director at the Commonwealth Scientific and Industrial Research Organization (CSIRO), “this conference is about bringing those who are interested in a more integrative science together, and have all the different disciplines articulating possibilities for the future in terms of agriculture and farming.” One of the benefits of the conference for him is that among the 300 participants, there were 200 Chinese researchers and students, some who may not have been exposed to this thinking before. “We have a mix of people who are familiar with Farming Systems Design and others who are just starting learning about it; it is a great opportunity,” Carberry said. LingLing Li, professor at Gansu Agricultural University and keynote speaker, shared a similar point of view. “This platform is a really good start for all experts and students involved in Farming Systems Design, as we do not yet have many scientists doing this type of research in China,” Li said.
On day one and two, there were several presentations on Africa and on the Sustainable Intensification of Maize-Legume Systems for Food Security in Eastern and Southern Africa (SIMLESA) program led and mentored by CIMMYT. “SIMLESA has been innovating in so many different ways, firstly about systems and farming systems, participatory approaches and new experiments in research methodology by targeting not only productivity but also reduced risks, which we have heard a lot in this conference. Because for farmers risks are sometimes more important than total yields,” said John Dixon, senior advisor in the Australian Center for International Agricultural Research (ACIAR) and principal regional coordinator for Africa. Important questions raised throughout the conference included how to get better participation with farmers, how to get the private sector involved for marketing through innovation platforms, how to manage risks and how scientists can work much better at systems productivity to understand better nutrition, as one of the outcomes, “to better feed our future farmers,” Dixon insisted. On the last day, a special session brought together Australian and Chinese farmers to discuss farming operations. This opportunity to exchange information and share experiences related to climate risks, prices or yields created enthusiasm on both parts.
Maize technicians received a training course in Mozambique.
Forty participants from various agricultural research stations, private seed companies, and communitybased seed production schemes attended a training course for maize technicians during 8–12 July in Chimoio, Mozambique.
The objective of the course was to update maize technical staff on seed production and implementation of on-station and on-farm trials. The training included practical sessions as well as theoretical lectures on seed production, breeding for biotic and abiotic stresses, and trial lay-out using the alpha lattice design.
The course was organized under the auspices of Drought Tolerant Maize for Africa (DTMA), Sustainable Intensification of Maize-Legume Systems for the Eastern and Southern Africa (SIMLESA), and USAID Mozambique in collaboration with the Instituto de Investigação Agrária de Moçambique (IIAM). During the course, SIMLESA representatives emphasized on-farm testing using the mother baby trial and the principles of conservation agriculture. USAID-Mozambique and DTMA focused on the importance of producing quality seed and scaling up seed to reach smallholder farmers.
Mozambique has recently released two drought tolerant maize hybrids and one early maturing open pollinated variety (OPV) under the DTMA project. With very few seed companies in the country, most of the seed in Mozambique is sourced from the informal seed sector. The training session came at a crucial stage, as several communities are ready to begin production of newly released OPVs. The course was coordinated by Peter Setimela and Cosmos Magorokosho from CIMMYT-Zimbabwe, and David Mariote and Pedro Fato from IIAM.