Theme: Climate adaptation and mitigation

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.

DTMA traveling workshop combines peer learning and evaluation

Written by on June 10, 2013. Posted in News.

DSC_5209-Group-photo-at-trial-field-in-Mozambique Covering 2,400 km, a multinational team toured Drought Tolerant Maize in Africa (DTMA) trial and demonstration plots in Malawi, Mozambique, Zambia, and Zimbabwe from 21–30 April in a traveling workshop that combined peer learning and project monitoring and evaluation. The team of 17 was made up of breeders from the national programs, DTMA scientists, and DTMA Advisory Board Chair Dave Westphal. Participants had the opportunity to compare notes, gain new knowledge based on the experiences of colleagues in other countries, and gauge themselves against their peers based on practical, real-life results. “Having a diverse group like this is very educational,” said DTMA Seed Systems Objective Leader John MacRobert.

DTMA addresses a real need in the region: “Drought is part and parcel of our farming systems,” said Zamseed veteran breeder Verma Bhoola when he hosted the team at the company’s farm. “Over 90% of maize grown in Zambia is rainfed, so prone to drought,” he said, emphasizing the importance of breeding for drought tolerance not only in Zambia but also in the rest of Africa, where most maize farming depends on rain patterns that are increasingly unpredictable as a result of climate change. “Twenty-five percent of maize production in Africa is threatened by frequent drought, while 40% is affected by occasional drought,” said DTMA project leader Tsedeke Abate during a feedback session at the end of the workshop.

The project is making significant strides. “We are on track in terms of overall production of drought-tolerant maize seed,” said Abate. More than 100 varieties have been released in 13 countries. “Zimbabwe is leading in seed production, with over 7,000 metric tons of drought-tolerant seeds produced by the end of 2012,” he said.

The tour ended with awards for the top-performing teams in breeding and dissemination. Malawi won top honors in both categories, for the trial plots at the research station and a well-managed demonstration plot in Mkanda Village, on the outskirts of Lilongwe, run by the Vibrant Mkanda Women’s Group. “This really demonstrates what DTMA is doing in partnership with the seed companies and national programs,” said Westphal. DTMA aims to produce and market 70,000 tons of seed annually by 2016.

Confined field trial of drought-tolerant maize yields promising results

Written by on June 7, 2013. Posted in Features.

The fourth confined field trial of MON87460, a genetically modified maize variety developed to tolerate moderate drought, recently concluded at the Kenya Agricultural Research Institute (KARI) in Kiboko with promising results.

The Water Efficient Maize for Africa (WEMA) project has been conducting field trials of MON87460 since 2010. The most recent trial was planted on 28 November 2012 and harvested on 16 April 2013. Throughout the season, the genetically modified plants outperformed those without the drought-tolerance-enhancing gene, including commercial checks.

This was even more evident at harvest, with ears from the genetically modified plants looking superior to the conventional checks. Charles Kariuki, center director at KARI-Katumani, who was present during the harvesting, was particularly impressed with the performance of the WEMA 18, 36, 41, 50, and 55 entries. “From these, we should be able to generate high quality data to back these impressive performances,” he said. Kariuki urged the project to nominate the conventional entries (without the MON87460 gene), that were also tested in the trials and performed very well, to the Kenya National Performance Trials to fast-track their commercial release.

Murenga Mwimali, WEMA’s national coordinator for Kenya, was looking forward to the outcomes of the data analysis to ascertain this yield performance in detail, comparing the performance against those without the gene and the commercial checks: “This will enable us to make informed conclusions on the potential benefits of MON87460.” Representatives from the regulatory authorities—the Kenya National Biosafety Authority (NBA) and the Kenya Plant Health Inspectorate Service (KEPHIS)—also lauded the WEMA team for their good confined field trial management.

Biosafety training for harvest staff

The day before the harvest, required training on regulatory compliance was conducted for everyone expected to participate in the harvest. The training covered management requirements and standard operating procedures for confined field trials as well as biosafety requirements for planting, harvesting, and post-harvest monitoring. The 46 participants were drawn from WEMA partner institutions (CIMMYT, African Agricultural Technology Foundation, KARI, and Monsanto), as well as the Ministry of Agriculture, KEPHIS, and NBA.

Jane Otadoh, assistant director for biotechnology in the Ministry of Agriculture, emphasized the importance of training to enable staff to effectively handle confined field trials. “There is lack of awareness, information, and knowledge on biotechnology in Kenya, and more so on confined field trial operations, requirements, and regulations. This training is to help you understand the process, the role of scientists, the regulatory process, and the regulators,” she said. She reiterated the ministry’s support for technology that boosts agricultural productivity.

James Karanja of the KARI-Katumani biotechnology program took participants through the standard operating procedures for harvesting confined field trials. Julia Njagi, biosafety officer at NBA, noted that staff training was critical to ensure compliance with biosafety regulations while performing the trials. As part of confined field trial management and regulatory compliance, all harvested materials including grains had to be destroyed by burning and burying, to avoid unintended release of genetically modified materials into the environment.

Eveline Shitabule, an inspector with KEPHIS, noted that training helped the participants to understand and follow instructions to ensure compliance. Having competent and well-trained personnel is one of the three pillars of compliance, the other two being a secure facility and records that are accessible and understandable.

Participants said they gained valuable knowledge during the workshop that improved their ability to work on confined field trials.

Affordable, Accessible, Asian (AAA) Drought Tolerant Maize Annual Meeting 2013

Written by on June 6, 2013. Posted in News.

5191222904_7cd74cf803_z “This project is a rare example of a public-private partnership capable of delivering products to farmers,” said Mike Robinson of the Syngenta Foundation for Sustainable Agriculture (SFSA) at the Affordable, Accessible, Asian (AAA) Drought Tolerant Maize Annual Meeting organized by CIMMYT-Asia at the International Crops Research Institute for the Semi-Arid Tropics (ICRISAT) campus during 20-21 May 2013.

Twenty-seven participants from CIMMYT, Syngenta, and national partners from Indonesia and Vietnam were welcomed by B.M. Prasanna, CIMMYT Global Maize Program director, who elaborated CIMMYT-Asia senior maize breeder B.S. Vivek presented a graphical overview of the project covering its objectives and discussing the progress achieved in 2012. Syngenta’s Naveen Sharma, Srinivasu Bolisetty, and Pathayya Ravindra then reported on the progress made in product development and product testing under managed and targeted stress environments. Future breeding plans were also discussed. Ian Barker, SFSA, discussed plans for delivering AAA products to farmers, Prasanna explained issues related to germplasm export and remedial strategies, and Manuel Logrono of Syngenta elaborated on the plans for testing and seed production. At the end of the first day, Vivek provided an overview of the association mapping project, and CIMMYT-Asia senior maize physiologist P.H. Zaidi gave a talk on the progress in root phenotyping.

The second day began with a visit to the rhizotronics facility at ICRISAT, followed by detailed presentations on genotyping and genome-wide association study (GWAS) analysis by CIMMYT Asia maize molecular breeder Raman Babu, and the progress on Syngenta’s side by Aparna Padalkar. Vivek then took over the stage again to compare the gains made by markers viza- viz conventional approach when talking about CIMMYT’s progress with Marker Assisted Recurrent Selection (MARS) and Genome Wide Selection (GWS). Hu Hung from the Vietnamese National Maize Research Institute and Muhammad Azrai from the Indonesian Cereals Research Institute then reported on the progress made in Vietnam and Indonesia, respectively.

After comparing CIMMYT’s and Syngenta’s approaches to drought phenotyping and the merits and demerits of biparental versus multiparental approaches to GWS, CIMMYT-Asia maize breeder Kartik Krothapalli concluded the meeting with a summary of the action plans discussed during the meeting. Group

Nepalese wheat researchers trained on spot blotch disease in India

Written by on June 5, 2013. Posted in News.

Spot blotch is one of the major diseases in the wheat growing regions of Nepal and the knowledge allowing researchers to identify and understand the disease is thus crucial. A group of 12 wheat technical research staff from Nepal visited Banaras Hindu University (BHU) in Varanasi, India, during 18-21 March 2013 with that purpose exactly: to learn more about the spot blotch disease and participatory varietal selection. The training was coordinated by CIMMYT wheat breeder Arun Joshi under the CRP WHEAT Strategic Initiative 5: durable resistance and management of diseases and insect pests. The main resource persons for the training were Ramesh Chand, Vinod Kumar Mishra, and B. Arun; Naji Eisa (Yemen), Conformt Sankem (Nigeria), Chhavi Tiwari, and Punam Yadav (India), all PhD students from BHU, facilitated the program.

The training covered identification of spot blotch pathogen Bipolaris sorokiniana in the field and the lab; preparation of Bipolaris inoculum using colonized sorghum grain; understanding the spot blotch disease infection process; creating artificial epiphytotic in the polyhouse and the field; screening wheat genotypes under high humidity and temperature in the polyhouse; recording disease severity in field and polyhouse conditions; and increasing data reliability in research on spot blotch of wheat and barley.

Participants first visited the pathology laboratory in the Mycology and Plant Pathology department, where they learned to identify B. sorokiniana under the microscope and to prepare Bipolaris inoculums from colonized sorghum grain. The infection process was explained using different samples available in the lab, as was a new technique for evaluation of spot blotch resistance in barley and wheat using monoconidial culture of the most aggressive isolate of B. sorokiniana developed at BHU. Participants observed the collection of the blotched portions of infected leaves for the production of conidia by associated fungal hyphae. They were also trained in conidia collection for further multiplication and categorization into different classes based on the aggressiveness of isolates.

In-Field On the second day, participants visited the polyhouse and research station to learn about screening wheat genotypes
under high humidity and temperature. They recorded the disease severity a number of times and saw that if inoculation is done properly the susceptible genotypes burn. The variation among genotypes for resistance to spot blotch disease was explained with the help of repeated disease notes and developing area under disease progress curve. Participants also observed the CRP project on spot blotch carried out at BHU in collaboration with the Nepal Wheat Research Program. The visiting team fruitfully interacted with the BHU wheat researchers, especially with Chand and Mishra, as well as with master’s and doctoral students working on spot blotch. A planned one-hour question-and-answer session expanded to three hours due to the visitors’ enthusiasm and wide-ranging questions.

On their final day, the team visited three participatory varietal selection sites where Harikirtan Singh, the lead farmer, demonstrated the performance of the most popular and newly developed lines under different seeding conditions (surface seeding, zero tillage, and conventional tillage) and multiplication of a number of agronomically superior zinc-rich wheat lines selected from the HarvestPlus project.

The training also allowed participants to visit other research experiments and trials associated with the Cereal System Initiative South Asia (CSISA) and HarvestPlus projects, and to learn to identify agronomically superior biotic and abiotic resistant varieties.

The Nepalese team regarded the visit highly successful as it provided an excellent opportunity to work with the most recent tools and techniques in spot blotch and other wheat researches and to enrich their experience on proper data recording and conduct of participatory varietal selection trials.

WEMA reaches out to local communities in Kenya

Written by on June 5, 2013. Posted in Features.

WEMA13 On 02 May 2013, the Water Efficient Maize for Africa (WEMA) project organized a sensitization workshop for local community leaders, provincial administration members, agricultural extension workers, farmers, and representatives of farmer groups. The meeting was held at the Kenya Agricultural Research Institute (KARI) in Kiboko and attracted over 40 participants from the neighboring maize growing areas in the Makueni and Machakos counties in eastern Kenya, along with representatives from CIMMYT, Monsanto, African Biotechnology Stakeholders Forum, and the Ministry of Agriculture. It aimed to explain WEMA’s work on development of drought-tolerant and insect-resistant maize varieties using both conventional and genetic engineering techniques. It was also an opportunity for WEMA to demystify myths, allay fears, and enlighten participants on genetically modified organisms (GMOs) and confined field trials.

In his opening remarks, E.O. Mungabe, KARI-Katumani center deputy director, noted that the use of genetic engineering in crop breeding still triggers panic among some Kenyans. However, the emerging challenges of climate change, diseases such as maize lethal necrosis, and pests like the larger grain borer call for new approaches, as conventional ways of breeding alone might not overcome or solve these problems. “It is necessary that we combine our conventional breeding techniques with genetic engineering to effectively respond to these emerging challenges. Think positively of genetic engineering as a technology that has the potential to address them,” Mungabe explained the situation to the participants. “Africa is a drought-prone continent with approximately 300 million people depending on agriculture for their livelihood,” said Murenga Mwimali, WEMA-Kenya national project coordinator, reminding participants that due to climate change, the incidences and severity of droughts will increase. Combined with insect and pest attacks, this could make maize farming an unrewarding enterprise if these issues are not addressed. Mwimali then briefed the participants on the progress todate in developing drought-tolerant and insect-resistant maize varieties using biotechnology and conventional breeding techniques. “Trials show that these new varieties,” Mwimali added, “will yield 25% more than commercial hybrids.”

Joseph Bii of KARI-Kiboko Rangeland Research Station stressed that 80% of Kenya’s land is classified as arid or semiarid. It is therefore important to develop maize varieties that can tolerate the little and erratic rainfall experienced in these areas to enable farmers to continue the production of Kenya’s main staple crop and an important fodder crop for livestock, maize.

The meeting then focused on the topics of GMOs and confined field trials within the scope of WEMA. The project has so far conducted four confined field trials for genetically modified drought tolerant maize variety MON87460 with promising results; another currently conducted confined field trial with genetically modified maize variety resistant to stem borers (MON810) is progressing well. It might take a few more years before farmers can plant the genetically modified maize varieties, but the drought-tolerant CKH110078 conventional variety developed from the Drought Tolerant Maize for Africa (DTMA) materials is likely to be available this year, according to Mwimali. In addition, 14 water efficient WEMA hybrids are already in national performance trials in Kenya and could, therefore, be released as early as next year.

The participants welcomed the opportunity to exchange ideas and get clarifications on many GMO issues: sources of seed and price implications; implications of recycling seed; cross-pollination of GMOs with their local varieties; as well as the reasons why WEMA has not improved local varieties such as Kinyanya. The farmers were also advised on sources of seed and appropriate varieties for their region, particularly the Ministry of Agriculture and the Kenya Plant Health Inspectorate Service through their SMS service, and warned against relying on agro-dealers for information as they are in the business to sell.

The stakeholders toured the MON810 trial and the WEMA confined field trial facility, where they had a chance to observe a genetically modified crop for the first time. It was heartening for the meeting organizers to hear most of the farmers speak positively of the technology and the varieties in the trial, with many expressing their eagerness to try out the genetically modified varieties.

WEMA22

Swiss Ambassador visits CIMMYT-Harare

Written by on May 22, 2013. Posted in News.

Physiologist Jill Cairns talks about climate change with the Swiss Ambassador. — Physiologist Jill Cairns talks about climate
change with the Swiss Ambassador.

The Ambassador of Switzerland to Angola, Malawi, Zambia, and Zimbabwe, Luciano Lavizzari, accompanied by the Swiss Agency for Development and Cooperation (SDC) Food Security program officer for Zimbabwe Mkhululi Ngwenya, visited the CIMMYT Regional office for Southern Africa in Harare, Zimbabwe, on 23 April 2013. The CIMMYT-Harare staff provided a tour around the facilities and briefed them on CIMMYT’s work on food security geared towards finding solutions to challenges faced by farmers.

In the beginning of the visit, CIMMYT physiologist Jill Cairns discussed the issue of climate change. “As a result of climate change, the seasons are going to be much shorter,” explained Cairns, adding that in a region with the lowest maize yields globally, a lot more effort is required to deploy germplasm and farming systems adapted to respond to constraints in the region. Cairns discussed the work done by CIMMYT scientists in countering stresses such as low nitrogen, drought, and heat stress along the maize breeding pipeline from population development, pedigree breeding, to regional and on-farm trials in over 100 diverse locations. She also covered the phenotyping tools used in the research work and highlighted research gains in maize yields, many of which result from highly drought-tolerant maize lines and improved efficiencies of maize breeding pipeline in Eastern and Southern Africa.

John MacRobert, seed systems specialist, highlighted the importance of harmonizing seed systems in the region. “Some countries, like Zimbabwe, have very well developed seed sectors, while others are largely informal,” MacRobert said, stressing the negative consequences this may have on farmers. He then explained the importance of on-farm trials in incorporating farmer preferences such as grain texture in breeding work, using the example of SDC-funded New Seed Initiative for Maize in Southern Africa (NSIMA), a project whose acronym is fashioned after a popular maize staple dish in Zambia and Malawi known as nsima: “NSIMA targets a subset of smallholder farmers who consume the maize that they grow.” MacRobert also highlighted collaboration with other SDC projects whose seed systems encourage community-based seed companies targeting smallholder farmers.

Next on the agenda was conservation agriculture covered by agronomist Christian Thierfelder. “It is crucial to link improved varieties with the best management practices to ensure the sustainability of the cropping system,” stressed Thierfelder who then went on to demonstrate a range of sowing equipment from a stick to animal traction planters used in conservation agriculture.

Seed systems specialist Peter Setimela explains the importance of regional on-farm trials to the Swiss Ambassador Luciano Lavizzari (middle) and SDC Food Security program officer for Zimbabwe Mkhululi Ngwenya.

Socioeconomist Girma T. Kassie turned attention to the consequences of lack of funding for smallholder farmers. For example, lack of funding programs to help the smallholder farmers acquire equipment limits uptake of improved planting practices. “Research on the impact of improved technologies aimed at improving livelihoods of smallholder farmers can help identify the gaps in technology transfer,” he added. Afterwards, the visitors toured CIMMYT trials where they observed the discussed technologies in the field.

CIMMYT has had a long-standing relationship with Switzerland through SDC, which currently funds several CIMMYT projects geared towards improving food security of smallholder farmers in East and Southern Africa. The projects, focusing on post-harvest losses reduction, conservation agriculture, and improved seed systems, include the Effective Grain Storage Project (EGSP), Seeds and Markets Project (SAMP), Harmonized Seed Security Project (HaSSP), and NSIMA. In addition, the SDC funds the ‘SDC-Junior Professional Officer’ supporting agronomist Stephanie Cheesman at the Global Conservation Agriculture Program team. CIMMYT highly appreciates the continued support from the Swiss government through SDC.

Generating drought tolerant maize varieties in Latin America

Written by on May 15, 2013. Posted in News.

S03TLWN-ears-Colombia On 26-27 April 2013, the FONTAGRO “Generation and validation
of drought tolerant maize varieties to stabilize and reduce mycotoxin damage resulting from climate change” project held its end-of-project meeting in La Ceiba, Honduras, along with the Central American Cooperative Program for the Improvement of Crops and Animals (PCCMCA) meeting (21-26 April). The event highlighted the advances to date, the project’s products, and recommendations for follow-up to ensure that the products reach farmers.

Since 2009, the project generated 5,000 doubled haploid (DH) lines which are currently being evaluated by CIMMYT. The populations were developed from inbred lines identified for drought tolerance, ear rot resistance, and reduced mycotoxin accumulation. The project also identified a set of inbred lines with high levels of ear rot and mycotoxin resistance. The information has been shared with project partners and other breeders for wide use, and CIMMYT will distribute these lines to interested parties. CIMMYT maize breeder Luis Narro commented on the research on diseases, ear rots in particular. “Ear rot is increasing in incidence and severity in South America. Evaluation of 18 commercial hybrids in Peru revealed ear rot incidences as high as 42% on susceptible hybrids in some locations,” he said. “Ear rot tolerant hybrids identified in this project will play an important role in mitigating the detrimental effects posed by ear rots and mycotoxin contamination. These need to be promoted to reach farmers rapidly.” As far as mycotoxins are concerned, the team also identified promising hybrids from validation trials documenting the natural incidence of mycotoxins in Peru, Colombia, and Mexico. This study showed that fumonisins are the most prevalent mycotoxin in South America (compared to aflatoxin and deoxynivalenol).

“The project has generated many products and validated some that are now being released in several countries,” said the project leader George Mahuku. Among those are four varieties released in Honduras (three white and one yellow); one white variety in Colombia; two varieties (one yellow, one white) and a yellow hybrid in Nicaragua, and three varieties (two yellow and one white) in Panama. Three hybrids outperforming the local commercial checks are under validation in Peru. Furthermore, two varieties showing the stability and rustic nature of CIMMYT-generated varieties were released in Colombia, Honduras, and Nicaragua. All the released cultivars are moderately tolerant to the tar spot complex disease which is becoming more common in Latin America.
CIMMYT maize breeder Felix San Vicente presented on the advances that have been made in breeding for drought tolerance and ear rot resistance. “We need to establish and maintain a regional network to test our products in marginal areas,” he noted. “We hope that we will be able to leverage funding from the CRP [MAIZE] to continue the validation and dissemination of these important and promising products in the region.” During the meeting, scientists presented 29 papers, 5 of which contained results from the FONTAGRO project. The papers of CIMMYT colleagues Román Gordon and Oscar Cruz were awarded for their contributions to the maize section of the project: Gordon received the first prize for his paper “Selection of maize varieties for tolerance to water stress in Panama 2010-2012,” and Cruz received the second prize for his paper on “Participatory validation of white and yellow maize varieties in two regions of Honduras.”

Fontagro-Laceiba-Honduras-019 The project has generally been considered very successful. “We now know which mycotoxins are important in the region and we have the products to potentially minimize the risk,” commented Mahuku. “What we need is to widely test and disseminate the products so that they reach as many farmers as possible. With a little infusion of resources, the dedication demonstrated by this group, and support from policy makers, I have no doubt that we will get there.”

During 23-25 July, FONTAGRO will hold its annual meeting (VIII Taller de Seguimiento Técnico de Proyectos FONTAGRO) in Uruguay. The “Generation and validation of drought tolerant maize varieties to stabilize and reduce mycotoxin damage resulting from climate change” is one of five projects finishing this year; its representatives were invited to present their results and compete for a financial award given to the best project. If the project wins, the financial resources could help with continued and wider validation of products generated by this project.

Successful partners’ day at CIMMYT-Harare showcasing research work

Written by on April 29, 2013. Posted in News.

The value of CIMMYT’s research work is enhanced through partnerships supporting the development and dissemination of new maize production technologies. To encourage this collaboration, the CIMMYT Southern Africa regional office in Harare, Zimbabwe, holds an annual event during which stakeholders from the ministries of agriculture, academic institutions, seed companies, and donor representatives tour field trials and get acquainted with the station’s research outputs.

On 05 April 2013, the Australian ambassador Matthew Neuhaus together with donor representatives from the European Union, AusAID, and the Swiss Agency for Development and Cooperation joined stakeholders from Zimbabwe, Mozambique, Lesotho, Swaziland, South Africa, and the Democratic Republic of the Congo for a successful partners’ day. Over 200 visitors explored CIMMYT fields, observed various products on the maize breeding pipeline such as trials on drought tolerance, nitrogen use efficiency, and demonstrations on conservation agriculture. Visitors also learned about small-scale farm mechanization for conservation agriculture and management of post-harvest losses through the use of metal silos.

During the field tour, it was evident that CIMMYT is incorporating legumes into maize production systems. This not only includes cover crop that contributes to nitrogen fixing but also grain legumes to improve diversity in the farming households’ nutrition. “CIMMYT is keen to see farmers gain more yield per unit area as opposed to having them increase the acreage under maize,” explained Mulugetta Mekuria, regional liaison officer for southern Africa. “When the maize yield is increased on a small portion of the land, the family can then use the rest of the land to grow high value crops such as pigeon peas that are being successfully exported to India from Mozambique and Tanzania,” he added.

Nutrition was a topic of other parts of the partners’ day as well. Farmers in most of the African continent prefer white maize but where diets are predominantly based on maize, especially with weaned infants, nutritional deficiencies may arise. Two exciting options for overcoming such nutritional deficiencies are quality protein maize (QPM) and vitamin A maize (also called orange maize). The QPM varieties have increased amounts of the essential amino acids lysine and tryptophan thereby enhancing the protein quality of maize and contribute to reducing malnutrition that is often seen in children under five years of age who are commonly weaned on maize porridge. “The mothers may not be able to ensure their children’s nutrition needs with the food they currently have,” said seed systems specialist John MacRobert, as he explained the benefits of QPM varieties. The orange maize has improved levels of pro-vitamin A and may help in alleviating vitamin A deficiency. Two varieties have been released in Zambia and two are in pre-release in Zimbabwe. During the tour, seed company representatives were encouraged to identify pre-release materials in which they may be interested.

The tour elicited a lot of interest from the participants who engaged the scientists in discussions, asked questions, and commented on the benefits of new technologies. Kgotso Madisa, an extension officer from Botswana’s Ministry of Agriculture, highlighted the value of nitrogen use efficient maize for farmers who cannot afford to apply the recommended fertilizer doses. “Most of our smallholder farmers are resource poor, these varieties would be of benefit to them,” said Madisa with reference to the hybrids developed under the Improved Maize for African Soils (IMAS) project.

Arsénio Mutatisse from Mozambique’s Higher Polytechnic Institute of Manica confessed that he had been skeptical about conservation agriculture before the event. However, after hearing agronomist Christian Thierfelder explain how to implement conservation agriculture successfully and after observing the trial, Mutatisse said he was convinced about its benefits. “This event was really helpful for us to see how the varieties perform in trials as we work closely with CIMMYT to ensure they get to the farmers,” said Helene Dinova Nsolani, leader of a group of community seed producers in the Democratic Republic of the Congo.

The partners’ day was made possible through the help of CIMMYT’s national staff and intern students working at the station. Thanks to training provided by the regional office, the students have all the necessary knowledge and were thus instrumental in explaining the technologies on display. “We do capacity building to ensure that whenever we move on, we have people to continue with the breeding work,” explained maize breeder Cosmos Magorokosho.

The field day was followed by a feedback session and a technical seminar on the maize lethal necrosis (MLN) disease that has emerged recently in East Africa. During the seminar presented by Magorokosho and MacRobert, principal director of the Department of Agriculture Research Services Danisile Hikwa expressed her appreciation to CIMMYT for its efforts to develop MLN resistant varieties.

CIMMYT-India interacts with farmers at IARI Agriculture Science Fair

Written by on March 26, 2013. Posted in News.

Science-Fair1 Pusa Krishi Vigyan Mela, a farmers’ fair organized by the Indian Agricultural Research Institute (IARI) annually since 1972, was held during 6-8 March 2013 in New Delhi, India. Every year, agriculture institutes and universities gather at the fair to disseminate their upgraded technology through exhibitions. This year, the focus was on “Agricultural technologies for farmers’ prosperity” and for the very first time IARI invited CGIAR centers, including CIMMYT, to display their technological innovation and experience.

CIMMYT took the opportunity to raise awareness on conservation agriculture technologies and receive feedback from farmers and agricultural scientists. The CIMMYT team consisted of B.R. Kamboj, Dalip Kumar, and Er. Kapil Singla who were accompanied by Anil Bana (Haryana) and supported by scientists and colleagues from CIMMYT-Delhi. They demonstrated conservation agriculture technologies and throughout the three days interacted with thousands of people, mainly farmers (both men and women), researcher, and scientists, but also school children who came to learn from the exhibition.

On inauguration day, Sharad Pawar, Union Minister for Agriculture and Food Processing Industries, Government of India, strongly emphasized the importance and need to develop new farm technologies to ensure food and nutritional security in the country and to enhance farm profitability and overall agricultural development. The visiting farmers showed keen interest in conservation agriculture and asked for conservation agriculture literature published in the local language to be distributed among farmers. According to the farmers, more follow-up sessions with the government’s extension workers are needed for better uptake of new technologies.

Science-Fair2 The socioeconomics team of CIMMYT India (Mamta Mehar and Subash Ghimire) also joined the fair to interact with farmers and learn about their perspectives on new technologies and farming-related constraints. Although the farmers came from different states, they mentioned having several common problems: the unavailability of quality seeds and other input on time, weather uncertainty, unpredictability of rainfall, and temperature variability. Farmers from Haryana and Rajasthan also talked about increasing pollution, degrading soil quality, and emergence of new type of insects and pests for which they would like to seek solutions. They were concerned about limited access to knowledge and low awareness on new technologies, especially those that help to manage climate change related risks. The socioeconomics team also learned that farmers are aware that using more than the advised amount of fertilizers and pesticides may harm the soil, but they do so anyways because they are afraid of the appearance of insects, pests, etc. as a result of unforeseen weather changes.

The interactions with farmers were particularly useful, as they motivated the socioeconomics team to ensure the CCAFS project researches coping mechanisms that would allow farmers to manage climate variability risks. CIMMYT-India hopes to go back to Pusa Krishi Vigyan Mela next year to gain more valuable knowledge directly from Indian farmers.

DTMA recognizes best-performing teams in Eastern Africa

Written by on March 26, 2013. Posted in News.

During 25-26 February 2013, 22 participants drawn from seed companies, national agricultural research institutes, and CIMMYT met in Arusha, Tanzania, for the regional Maize Working Group (MWG) meeting, a forum that brings together participants from country MWGs in Ethiopia, Kenya, Tanzania, and Uganda. The Drought Tolerant Maize in Africa (DTMA) project used this opportunity to recognize national partners that perform well in breeding, maize technology development, and dissemination, as the project has done in previous years. The National Agricultural Research Organization (NARO) was awarded the best maize breeding team of 2012 prize, but its members were not the only ones receiving a plaque and certificates of recognition. “As this culture has served as a motivating tool for the partners involved in the project, it was decided to begin awarding not just the best team but also runners up,” explained the project’s administrator Kamau Kimani. “It is an honor to see recognition of the significant effort we have made in breeding and disseminating maize together with the private sector,” said Godfrey Asea, a NARO maize breeder. “It is also a challenge to keep the momentum to achieve targets in DTMA and translate this to food security for farmers,” added Asea.

DTMA5

Speaking during the meeting, the DTMA project leader Tsedeke Abate emphasized that drought tolerant varieties perform well even under optimal conditions and are therefore not only meant for marginal drought-prone areas. “Varieties have to be supported by good management practices, land preparation, timely planting, input use, and cultivation,” said Abate. The work, challenges, and successes of MWG partners in the four above-listed countries were discussed. The participants received feedback on sub-grant proposals they had made for support in maize research activities in the region. The national programs and seed companies have benefited through “access to improved maize varieties, more collaboration on multi-locational variety testing, and exposure through interaction with other scientists,” said Sammy Ajanga, the chair of MWG Kenya. “Our varieties have a better chance of being released to the farmers,” said Ajanga as he cited the advantages of the multi-locational field trials facilitated through collaborative research across the region.

Participants also observed a minute of silence in memory of the late CIMMYT maize breeder Strafford Twumasi-Afriyie, a former key member of the MWG and the leader of Nutritious Maize for Ethiopia (NuME). “Twumasi was a very passionate maize breeder,” said principal scientist Stephen Mugo, highlighting the work he did in quality protein maize breeding.

During the meeting, Peter Matowo, a maize breeder from Tanzania, was elected chair of the Eastern Africa Regional MWG.

Water-saving techniques salvage wheat in drought-stricken Kazakhstan

Written by on March 21, 2013. Posted in Features.

Kazakhstan’s 2012 drought and high temperatures cut the country’s wheat harvests by more than half from 2011 output, but wheat under zero-tillage practices gave up to three times more grain than conventionally cultivated crops. Two million hectares are currently under zero tillage, making Kazakhstan one of the top-ten countries for conservation agriculture and helping to avoid severe wheat shortages.

“If no-till practices had not been used this period of drought, we would have gotten nothing. It would have been an absolute catastrophe,” says Valentin Dvurechenskii, Director General of the Kostanay Agricultural Research Institute in Kazakhstan, giving his verdict on the 2012 wheat crop.

After farmers planted their wheat in April, Kostanay—the country’s main wheat growing region—went two months without rain. Making matters worse, daily temperatures were several degrees above normal. At the time, farmer and Director General of the Agrofirm Dievskaya, Oleg Danilenko, echoed the view of peers: “I’ve been a farmer for 35 years, and I’ve never seen anything like this.” Danilenko said the harsh conditions pointed up the advantages of conservation agriculture, which involves reduced or zero tillage, keeping crop residues on the soil, and rotating crops. “No other results have been nearly as successful.”

Wheat on Kazakhstani farms using conventional agriculture has been severely affected by 2012's drought and high temperatures. According to farmer Idris Kozhebayev, wheat crops in Akmola Region normally average 42 grains per spike, but this year are producing only 2-4 grains per spike. — Wheat on Kazakhstani farms using conventional agriculture has been severely affected by 2012’s drought and high temperatures. According to farmer Idris Kozhebayev, wheat crops in Akmola Region normally average 42 grains per spike, but this year are producing only 2-4 grains per spike.

Lack of rain darkens crop outlook

In the village of Tonkeris, 45 km from the capital Astana in the Akmola region, farmers’ fields had received no rainfall between May and September. According to farmers in the area, drought conditions used to be rare but are becoming more frequent. “I’ve been a farmer for 30 years,” said Idris Kozhabayev. “There was drought like this in 2000 and 2010. In recent years, it’s getting worse.”

Cultivated using conventional practices, the fields of Akmola were expected to produce only enough wheat for next year’s seed. “The farmers’ fields I work with all look like this. Some are worse,” said Daniyar Andibayev, an agronomist in the region.

Meanwhile, in Kostanay, many farmers had adopted conservation agriculture techniques that protected them from drought’s worst effects. With these, farmers reported yields of 2 tons per hectare, while some farmers using conventional practices lost their entire crop.

Wheat grown under conservation agriculture in the Kostanay region of Kazakhstan has stayed healthy and is set to give a good yield despite the year's severe drought and high temperatures. — Wheat grown under conservation agriculture in the Kostanay region of Kazakhstan has stayed healthy and is set to give a good yield despite the year’s severe drought and high temperatures.

Conserving where it counts

Kazakhstan is the world’s sixth largest wheat exporter. More than 14 million of the country’s 15 million hectares of wheat is rainfed, meaning the crop relies on precipitation and is thus vulnerable to dry weather. Reports in January 2013 said the 2012 drought had shrunk the wheat crop 57% from 2011’s record harvests.

Farmers are initially attracted to zero tillage and conservation agriculture because the approaches dramatically cut costs: farming this way requires less labor, machinery use, fuel, water, or fertilizers. In rainfed cropping, conservation agriculture can also boost yields.

Research has shown that conservation agriculture increases soil moisture by as much as 24% on most fields. In Kazakhstan the practices capture snow on the surface and improve water retention under heavy snowfall and subzero temperatures. Zero tillage also augments soil organic matter and cuts erosion by 75-100%. All this has helped to nearly double average wheat yields, from 1.4 to 2.6 tons per hectare, according to Dvurechenskii. In December 2011 Dvurechenskii was awarded the “Gold Star” medal and the rank “Hero of Labor of Kazakhstan” by the country’s President, in recognition of his work to promote conservation agriculture.

The findings of a 2012 FAO-Investment Centre mission to Kazakhstan^₁ suggest that adoption of zero tillage and conservation agriculture had raised domestic wheat production by almost 2 million tons. According to the mission report, this represents some US$ 0.58 billion more income over 2010-12, enough grain to satisfy the annual cereal requirements of almost 5 million people, and the sequestering of about 1.8 million additional tons of CO₂ per year.

Pushing out with better practices

With the support of CIMMYT, FAO, ICARDA, the World Bank, the Ministry of Agriculture of Kazakhstan, and other international organizations and donors, Kazakhstan went from practically nothing under conservation agriculture in 2000 to 0.5 million hectares in 2007. In 2012, as a result of ongoing farmer engagement through demonstration plots, field days, and close work with farmer unions, conservation agriculture is now practiced on 2.0 million hectares—13% of the country’s wheat-growing area.”This amazing adoption is thanks to a few scientists who saw the potential, but more importantly to the pioneer farmers who perfected the techniques and put them into practice; farmers believe farmers,” says conservation agriculture expert Pat Wall, who, together with CIMMYT colleagues Alexei Morgounov and Muratbek Karabayev, initiated field trials with Kazakhstani scientists in the country’s northern steppes in 2000.

“The main achievement of CIMMYT in Kazakhstan has been the changing of the minds of farmers and scientists,” observes Bayan Alimgazinova, head of the Crop Production Department of KazAgroInnovation, a specialized organization created by the Ministry of Agriculture to increase the competitiveness of the country’s agricultural sector. Based on the positive results of research trials and tests in farmers’ fields, Kazakhstan’s current state policy calls for every province to pursue zero tillage.

“Kazakhstan has a wheat growing area of 15 million hectares presently and can increase it up to 20 million hectares,” added Murat Karabayev, CIMMYT representative in Kazakhstan. “This is extremely important for the food security of the country, the Central Asian region, and globally. There is a real opportunity to double yields using new advanced technologies and improved varieties. We’ve already seen this through conservation agriculture.”

For more information: Muratbek Karabayev, CIMMYT Representative in Kazakhstan (m.karabayev@cgiar.org)
CIMMYT’s conservation agriculture activities in Kazakhstan have been funded by the different sources, including from CIMMYT’s own resources and the comprehensive World Bank Agriculture Competitiveness Project (ACP). CIMMYT received two grants between 2008 and 2010 from the World Bank’s ACP to promote conservation agriculture practices in Kazakhstan.

Muratbek Karabayev, CIMMYT Representative in Kazakhstan (left) and Auyezkhan K. Darinov, President–Chairman, Republic Public Union of Farmers of Kazakhstan.

Interview: Auyezkhan K. Darinov, 2012

Auyezkhan K. Darinov has been a farmer since 1993, and represents two million of his fellows as President-Chairman of the”Kazakhstan Farmers Union”. He works to unite and provide a voice to small and medium-scale farmers in Kazakhstan and to promote pro-farmer policies with the Ministry of Agriculture.

What are the main activities of the Kazakhstan Farmers Union?
We work with farmers to influence the government and to push for policies that can benefit farmers. The government sometimes doesn’t understand the issues farmers are facing. We meet with the Prime Minister, ministers, other officials every week to push for ideas for farmers. We organize events, meetings, and seminars and this has been our best strategy for getting conservation agriculture to farmers.

What strategies do you use to introduce conservation agriculture to farmers?
The Farmers Union was established in 2000. Since 2002, we have been working with farmers to introduce them to the merits of conservation agriculture. Now, we are working with farmers in all of the provinces and districts. Through our representatives, we have established a network of farmers who work on spreading the technology of conservation agriculture throughout the country. We are the largest NGO in Kazakhstan and we represent the interests of farmers in all levels of the social-economic and political spheres of the country. We are working with the government to develop policies for next year and to draft programs.

What does this year’s drought mean for farmers?
There are estimates of expected yields for this year which are being reported. However since we know the stories of farmers and the real situation of farmers’ fields, we know that the official estimates are higher than the reality. We’re expecting up to 2 million tons of grain less than official estimates. This year, many farmers are in crucial situations and need assistance from the government.

Do you think more farmers will be convinced to start using conservation agriculture following the drought?
Conservation agriculture is still a challenge in some areas, like Southern Kazakhstan. However, on the whole, farmers are already convinced of the merits of conservation agriculture, but it’s a problem of resources. There have to be changes in the agriculture system to equip small and medium-sized farmers with equipment that they can’t afford. It’s an expensive venture to make the shift from traditional practices to new technologies. That’s why we’re working with farmers to form cooperatives so equipment can be shared and lent to farmers.

What role has CIMMYT played in Kazakhstan?
Kazakhstan is now the most experienced in conservation agriculture in Central Asia. We worked with pioneers of conservation agriculture technologies such as Ken Sayre and Pat Wall. CIMMYT was one of the first and the best in conservation agriculture. In all large projects, CIMMYT invites the Farmers’ Union and similarly, the Farmers’ Union invites CIMMYT.

What are some of the main challenges you see for agriculture in Kazakhstan in the future?
All irrigation water is coming from neighboring countries. We need to change the agriculture system to use less water and produce higher yields. There is also a need to develop new varieties which are drought tolerant. That’s where the work of CIMMYT comes in. That’s why the work of CIMMYT in Kazakhstan is so important.

Wheat seems to have a special importance to farmers here. Why is that?
Wheat… it is our money. Basically, if farmers have wheat, they have money. We are a wheat and meat country. Other crops have importance, but not like wheat. Changing the volume of wheat changes the national economy. Farmers cannot imagine how they would survive without wheat. Farmers knew that this year would be dry. But nevertheless, they planted wheat. That’s how important wheat is in Kazakhstan.

¹ Unpublished; see also a 2009 Investment Centre report on zero tillage in Kasakhstan.

Thomas Lumpkin and Marianne Bänziger visit CIMMYT offices and projects in Bangladesh

Written by on March 13, 2013. Posted in News.

Thomas Lumpkin, CIMMYT director general, and Marianne Bänziger, deputy director general for research and partnerships, visited CIMMYT-Bangladesh during 20-23 February 2013 to meet with CIMMYT-Bangladesh personnel, government officials, and representatives from key national agricultural research systems. They toured the fields of the Cereal Systems Initiative for South Asia in Bangladesh (CSISA-BD) and visited the Bangladesh Agricultural Research Institution (BARI) stations at Jamalpur and Gazipiur.

On 20 February, Lumpkin and Bänziger accompanied the staff of CIMMYT-Bangladesh —cropping system agronomists T.P. Tiwari (country liaison officer), Mahesh Kumar Gathala, and Timothy Krupnik, and agricultural economist Frederick Ross— to a dinner meeting with Ministry of Agriculture (MoA) Secretary Monzur Hossain, MoA Additional Secretary M.A. Hamid, Bangladesh Agricultural Research Council (BARC) Executive Chairman Wais Kabir, BARI Director General Rafiqul I. Mondal, and government scientists. The dinner discussion covered the general state of agriculture in the country and the long-standing collaboration between the Government of Bangladesh (GoB) and CIMMYT, a partnership established in 1973 and formalized in 1982. Hossain and Kabir highlighted the importance of the collaboration and lauded CIMMYT for its continuous support in terms of enhancing BARI capacity to promote maize and wheat in Bangladesh as part of the quest to achieve food security in the country. “CIMMYT-Bangladesh has a very strong presence with a great, proactive team,” added Kabir. Lumpkin then briefed the distinguished guests on CIMMYT’s regional focus, including the latest developments regarding the Borlaug Institute for South Asia (BISA), and thanked the GoB for facilitating CIMMYT’s work in the country.

The following day, Dinabandhu Pandit, CIMMYT-CSISA cropping systems agronomist, organized a field tour to the Mymensingh Hub of the CSISA-BD project. Accompanied by farmers and staff of partner organizations (IRRI, BARI, Department of Agriculture and Extension, Bangladesh Agricultural University, CARE Bangladesh, and ASPADA), Pandit led the team across the Old Brahmaputra River to Char Jelkhana to observe on-going activities initiated in the 2011/12 winter season. The location used to be limited to black gram cultivation and grazing, but thanks to the successful demonstration of maize and wheat by CIMMYT-CSISA on this charland (charlands are islands formed by river sedimentation) and in neighboring villages, local farmers have expanded the area under maize and wheat cultivation by 743% (4.7 ha to 39.4 ha). They are planning to further expand these crops next year.

Upon their return to Dhaka, the team visited the BARI campus in the Gazipur District. Mondal welcomed the CIMMYT director general and deputy director general and explained BARI’s focus and reach before a tour of the station to observe wheat and maize breeding work coordinated by senior wheat breeder Naresh Chandra Barma and BARI Hybrid Maize Program leader Bhagya Rani Banik.

On the last day of the visit, a breakfast meeting was held with USAID representatives David Yanggen and Anar Khalilov. Lumpkin and Bänziger acknowledged and thanked USAID for supporting CIMMYT-Bangladesh through the CSISA-BD project, and briefed USAID on CIMMYT’s focus in the region. They discussed the importance of diversification and sustainable production of maize in Bangladesh, as well as ways to enhance adoption of new technologies. Yanggen and Khalilov agreed that the forthcoming proposal from CIMMYT emphasizing agricultural mechanization and surface irrigation for southern Bangladesh is a very exciting initiative that USAID is keen to support. They appreciated CIMMYT’s work in Bangladesh and encouraged CIMMYT-CSISA to continue developing short, simple, and effective communication materials on successes in the field.

Following breakfast, Lumpkin and Bänziger visited the office of CIMMYT-Bangladesh to meet the staff, discuss their thoughts and concerns, and thank everyone for their good work.

CIMMYT-Bangladesh, February 2013: distinguished guests and donors

Written by on March 12, 2013. Posted in News.

As farmers in southern Bangladesh –the country’s most impoverished region– face increasing costs of agricultural labor and negative effects of climate change, CIMMYT-Bangladesh partners with farmers and agricultural service providers throughout the region to turn these challenges into opportunities. This work to improve farmers’ livelihoods by developing affordable irrigation and efficient machinery has drawn attention from donors and distinguished guests, many of whom recently visited some of the region’s areas to see the changes brought by CIMMYT in action.

On 06 February 2013, Saharah Moon Chapotin (team leader for agricultural research at USAID) and Tony Cavalieri (Bill & Melinda Gates Foundation, BMGF) visited activities conducted under the Cereal Systems Initiative for South Asia in Bangladesh (CSISA-BD) funded by USAID’s Feed the Future initiative with support from the BMGF. CSISA-BD is a collaborative project of CIMMYT, the International Rice Research Institute (IRRI), and WorldFish aiming to sustainably increase productivity of cereal-based farming systems by developing innovative agricultural technologies –including small-scale agricultural machinery and conservation agriculture– and market linkages to raise household incomes. Accompanied by cropping system agronomists Timothy J. Krupnik and Samina Yasmin (CIMMYT-CSISA), Global Wheat Program associate director and wheat pathologist Etienne Duveillier (CIMMYT), regional agronomist Andrew McDonald (CIMMYT), and director of IRRI in Bangladesh Timothy Russell, the team visited the Patuakhali region of southern Bangladesh, where preliminary results of rainfed maize field trials managed by farmers showed both yield increase (1.5 t/ha) over conventional management practices and reduced production costs. Farmers have seized this opportunity and are increasingly growing maize to sell to tourists at premium prices in the nearby beach district. The guests also visited IRRI rice screening trials, WorldFish activities to introduce micronutrient dense fish species, and women’s producer groups involved in maize cultivation.

The following week, the US Ambassador to Bangladesh Dan Mozena and USAID Mission Director in Bangladesh Richard Green visited CSISA-BD activities in the Shatkira district. After a welcome from CIMMYT agronomists Krupnik and Md. Shahjahan, and IRRI and WorldFish delegates, they learned about CIMMYT’s efforts to test, refine, and extend labor-saving and cost-reducing conservation agriculture machinery to farmers through agricultural service networks, and through the study and promotion of two-wheel tractors to power fuel-efficient, surface water irrigation pumps (axial flow pumps, AFPs) used particularly for bed-planted maize fields. Ambassador Mozena commented, “I have seen a CIMMYT project funded by USAID and working with the Government of Bangladesh to help increase food security. Wonderful things are happening right here. I saw a beautiful maize field grown with new technology. If you don’t have this machinery and you are using only day labor, it is very hard to cultivate enough land. This machinery really works.”

Two days later, a European Union delegation visited the EU-funded Agriculture, Nutrition and Extension Project (ANEP) in Barisal, Bangladesh, one of the poorest regions subjected to tidal flooding and low annual crop productivity. ANEP is a partnership between CIMMYT, International Development Exchange (iDE), Save the Children, WorldFish, Community Development Center (CODEC), CEAPRED, and BES-Nepal. The EU delegation included Philippe Jacques (head of EU cooperation in Bangladesh), João Anselmo (attaché to the EU delegation), Marion Michaud (ANEP-EU task force manager based in Nepal), and Roselyn Mullo (ECHO regional nutrition coordinator). ANEP focuses on increasing cropping intensity in Barisal to enable farmers to grow two economically viable crops per year. Krupnik and Yusuf Ali demonstrated how small-scale machinery used for strip tillage and bed planting can help farmers to plant dry season crops such as wheat, maize, and legumes, while reducing costs and saving irrigation water. “Within ANEP, CIMMYT partners with iDE to develop seasonal crop production business plans tailored to specific villages and farmers’ organizations. These production plans help farmers to make better decisions on how to assure timely harvesting, aggregation of grain, and delivery of maize to the market to obtain premium prices,” added Krupnik.

“Sky Walker” advances phenotyping in Southern Africa

Written by on March 11, 2013. Posted in News.

Thermal-image To free phenotyping of the varietal development bottleneck label, many new tools have been developed to enable an easier plant growth and development characterization and field variability. Until recently, these tools’ potential has been limited by the scale on which they can be used, but this is changing: a new affordable field-based phenotyping platform combining cutting edge aeronautics technology and image analysis was developed through collaboration between researchers from the University of Barcelona, Spain; Crop Breeding Institute, Zimbabwe; Instituto Nacional de Innovación Agraria, Peru; AirElectronics; and Sustainable Agricultural Institute of the High Research Council, Spain. The project was funded by MAIZE CRP as part of Strategic Initiative 9 activities focusing on new tools and methods for national agricultural research systems and small and medium enterprises to increase genetic gains in maize breeding.

The new platform uses ‘Sky Walker,’ an unmanned aerial vehicle which can fly at over 600-meter with an average speed of 45 km/h. The vehicle has thermal and spectral cameras mounted under each wing, and its flight path and image capturing are controlled via a laptop using Google Earth images. Jill Cairns and Mainassara Zaman-Allah tested the platform at CIMMYT-Harare along with José Luis Araus (University of Barcelona), Antón Fernández (AirElectronics president), and Alberto Hornero (Sustainable Agricultural Institute of the High Research Council) to establish the optimal flight path (distance between plane passes and height) for plot level measurements. Field experiments were phenotyped for spectral reflectance and canopy temperature within minutes; these will be compared to results from the GreenSeeker.

The measurement speed of the new platform helps to overcome problems associated with changes in cloud cover and the sun position. It will be used by the Crop Breeding Institute to assist in developing new maize hybrids with heat stress and drought stress tolerance under elevated temperatures.

Maize lethal necrosis: Scientists and key stakeholders discuss strategies as the battle continues

Written by on March 7, 2013. Posted in News.

A recently-emerged disease in Eastern Africa, maize lethal necrosis (MLN), remains a serious concern. A regional workshop on the disease and its management strategies was held during 12-14 February 2013 in Nairobi, Kenya. Organized by CIMMYT and the Kenya Agricultural Research Institute (KARI), the workshop brought together nearly 70 scientists, seed company breeders and managers, and representatives of ministries of agriculture and regulatory authorities in Kenya, Uganda, and Tanzania, as well as experts from the U.S.A.

The key objective of the meeting was to “establish a strong interface between research and regulatory institutions in Eastern Africa to effectively tackle the MLN challenge, including the ongoing efforts and further steps to identify and deploy disease-resistant germplasm, and to create a system that can ensure a constant flow of varieties,” explained B.M. Prasanna, CIMMYT Global Maize Program director. Prasanna highlighted the difficulties faced by the maize farming community from the disease, and emphasized the need to accelerate deployment of MLN resistant maize varieties and to generate necessary awareness among the relevant stakeholders on management strategies. “It is necessary to break the MLN disease cycle and tackle the problem from multiple perspectives,” added KARI director Ephraim Mukisira. He mentioned that besides partnering with CIMMYT on breeding for MLN resistant varieties, KARI will also be distributing seed of alternative crops to farmers in affected areas. “As a dairy farmer, I will be planting napier grass instead of maize this season,” noted Mukisira.

The first signs of a new disease appeared in 2011 and 2012 in the Rift Valley Province, Kenya. A team of CIMMYT and KARI scientists identified it as MLN, a disease caused by a double infection of the maize chlorotic mottle virus (MCMV) and the sugarcane mosaic virus (SCMV) and transmitted by insects. According to Godfrey Asea, plant breeder and head of the Cereals Program at the National Crops Resources Research Institute (NaCRRI), Kampala, MLN was also identified in Uganda. Furthermore, symptoms of MLN have been cited in Tanzania, said Kheri Kitenge, maize breeder at the Selian Agricultural Research Institute (SARI), Arusha.

Scientists, particularly breeders, have made significant progress in tackling the disease. Studies are already underway at two field sites (Naivasha and Narok) where responses of a wide array of inbred lines and pre-commercial hybrids are being evaluated under high natural disease pressure and artificial inoculation. Participants visited the Sunripe Farm in Naivasha, where they observed KARI-CIMMYT MLN trials under natural disease pressure. A trial under artificial inoculation in Naivasha featuring nearly 175 commercial maize varieties is showing high levels of susceptibility to MLN. Researchers remain hopeful as some of the elite inbred lines and pre-commercial hybrids developed under projects such as the Drought Tolerant Maize for Africa (DTMA) or Water Efficient Maize for Africa (WEMA) are showing resistance to the disease.

During the farm visit, KARI pathologist Anne Wangai and her team showed how to generate artificial inoculum for MCMV and SCMV, as well as the enzyme-linked immunosorbant assay (ELISA) based technique for pathogen diagnosis at the national agricultural research laboratories at the KARI campus. The participants observed an artificial inoculation of maize seedlings in the field, followed by a discussion on some of the major changes in maize seed demand resulting from MLN incidence. “The maize seed industry is under stress in Kenya due to the need to replace some popular but MLN-vulnerable varieties as soon as possible,” explained Evans Sikinyi, Seed Trade Association of Kenya (STAK) executive officer. All stakeholders agreed that the foremost priority is to identify and speed deployment of MLN resistant maize varieties. “We also have to enhance the diagnostic capacity in the labs and ensure there is a rapid response and surveillance on MLN,” added Esther Kimani, general manager of phytosanitary services at the Kenya Plant Health Inspectorate Service (KEPHIS).

In the concluding session of the workshop, stakeholders identified key research areas and discussed partnership opportunities.