Location: Tanzania

Partnership on maize lethal necrosis in Africa makes significant progress

Written by on August 19, 2014. Posted in News.

Partners of the Maize Lethal Necrosis (MLN) project in Africa, funded by the Bill & Melinda Gates Foundation and Syngenta Foundation for Sustainable Agriculture (SFSA), came together to review and discuss the progress and next steps for the project at a workshop on 14-15 May.

“The primary goal of this project is to identify MLN-tolerant germplasm, including inbred lines and pre-commercial hybrids, for potential deployment of MLN-tolerant varieties (with other relevant adaptive traits) through partners in Sub-Saharan Africa. The project also seeks to gain information regarding the genetics of resistance to the disease, create awareness and build capacity for more effective MLN management.

Group photograph taken at the MLN Screening Facility, Naivasha, Kenya. Photo: Florence Sipalla/CIMMYT

“As the project matures, we will be screening additional promising germplasm coming out of the MLN screening facility at Naivasha and from national agricultural research institute (NARI) partners at satellite testing centers in Kenya, Tanzania and Uganda under high natural disease pressure. This will help to validate the performance of the germplasm under MLN in important agro-ecologies,” said CIMMYT Global Maize Program Director and MLN-Africa project leader, BM Prasanna.

Mike Robinson, chief scientific advisor at SFSA and representatives of several seed companies and NARIs in Kenya, Tanzania and Uganda participated in the MLN Field Day at Naivasha on 14 May. The companies included East African Seed, Kenya Seed Company, Meru Agro, Monsanto, DuPont Pioneer and Seed Co Limited. “We hope to submit several germplasm entries for trials at the MLN screening facility in the next planting season,” said Francis Ndambuki, a maize breeder with Kenya Seed Company.

Less than a year after its opening, the MLN screening facility is now fully functional, evaluating materials from several partner organizations, including the International Institute for Tropical Agriculture, NARIs and seed companies. The partners/ visitors had an opportunity to see several trials taking place at the facility, as well as promising MLN-tolerant germplasm. Scientists involved in this project are working intensively – in collaboration with national and international institutions to develop and validate virus inoculation and germplasm screening protocols. They are also testing a large array of germplasm for responses against MLN under artificial inoculation, developing diagnostic techniques and building the capacity of national partners in MLN diagnostics and management.

The CIMMYT seed systems team is working on scaling-up the identified MLN-tolerant germplasm and distributing it to interested public and private partners in Africa. The progress made on the project’s diverse fronts was presented in detail, and the next steps were discussed during the project meeting held in Nairobi on 15 May. “We are pleased that CIMMYT teamed with KARI to address this important issue for Africa,” said Joseph Mureithi, KARI deputy director. Mureithi continued, “The MLN screening facility at Naivasha is a model of partnership between CGIAR centers, NARIs and the private sector,” adding that the results of the trials at the facility would have far-reaching impact. “Stresses such as drought and poor soil fertility could potentially compound the expression of the MLN disease,” said KARI virologist Dr. Anne Wangai, a key partner in this project. “This is a great opportunity to demonstrate the confluence of technologies – breeding, pathology and entomology,” said Robinson, urging the project partners to further strengthen the scientific edge and demonstrate how the research being undertaken on the disease can quickly result in products that benefit African farmers affected by the disease.

“Policy advocacy is key,” said Wilfred Mwangi, CIMMYT’s regional representative for Africa. He emphasized the need to fast-track registration and commercialization of the MLN-tolerant hybrids, especially in the MLN-affected countries. The Kenya Plant Health Inspectorate Service (KEPHIS) was commended for its commitment and support in fast-tracking the release of promising MLN-tolerant hybrids. “There is fast progress on the MLN research and the first wave of improved materials is coming now,” said Robinson, adding that he is looking forward to seeing more materials in the future. He emphasized the importance of coordination, policy clarity, communication and international synergies on MLN research and development in Africa.

Farmers in southern Africa reap benefits of conservation agriculture

Written by on July 1, 2014. Posted in News.

CIMMYT’S Global Conservation Agriculture Program Manager, Irene Christiansen, received a first-hand look at the benefits and challenges of practicing conservation agriculture (CA) in southern Africa during a 9-13 June visit to the region.

Irene Chakoma of ILRI explains how livestock feeding trials have helped demonstrate the value of fodder crops to farmers.

On the first day, she met with scientists in the CIMMYT Southern Africa Regional Office and the country liaison officer, Dr. Mekuria Mulugetta. The scientists gave formal presentations of their key activities and how these are linked to GCAP activities in the region. The remainder of the week was enriched by site visits to project areas and partner meetings.

One of the highlights was a visit to the Integrating Crops and Livestock for Improved Food Security and Livelihoods in Rural Zimbabwe (ZimCLIFS) project, which is funded by the Australian Centre for International Agricultural Research. The project is joined by the International Livestock Research Institute (ILRI), CIMMYT, and the International Crops Research Institute for the Semi-Arid Tropics (ICRISAT).

“Our work under conservation agriculture is focused on three aspects – food, feed and soil fertility management,” explained cropping systems agronomist Isaiah Nyagumbo. Christiansen met farmers who are testing different maize-legume systems, including fodder legumes. “The use of velvet beans and lablab as supplementary feed for livestock during the dry season is proving to be very popular among farmers,” said Irene Chakoma of the International Livestock Research Institute.

Another group of farmers, who are implementing ZimCLIFS trials in Goromonzi District, said they have benefited from learning new farming techniques such as growing grain and forage legumes for soil fertility improvement, growing crops for fodder and preparing hay bales from forage crops. One challenge they face is keeping maize residue on the fields, a key component of CA. Because of communal grazing, they said, most of the maize residue is eaten by livestock, leaving thatch grass species as the main source of residue for soil cover. “Residue application is the most labordemanding task for us when practicing CA, as it involves fetching grass from our field boundaries and from fields that are farther away,” one said.

To address this challenge, ZimCLIFS is testing the potential of using biomass from unpalatable legumes such as fish bean and common rattlepot. Finding innovative solutions to smallholder farmers’ problems is a key component of the program. “We are also testing the effects of different residue types in CA such as maize residues, grass and leaf litter and their interaction with nitrogen management in trials implemented in the 11 wards across Goromonzi and Murehwa districts,” reported cropping systems agronomist Walter Mupangwa.

Later in the week Christiansen visited a site near Bindura, Mashonaland Central, where farmers have been implementing CA with a CIMMYT team led by cropping systems agronomist Christian Thierfelder for the last 10 years. Farmers in the Pindukai Valley explained that they stopped using plows in all their operations after realizing the benefits of minimum soil disturbance. Using a direct seeder or ripper allows them to plant their fields in one-quarter of the time it would take to plow the heavy soils.

Farmers also use herbicides for weed control, which makes CA very attractive to them. “We arrived in 1987 at this farm with 16 families and have now grown to 56 families. None of us is currently using a plow except for some tobacco growers,” said farmer Hendrixius Zvamarima during discussions.

Another farmer said the long-term intervention “changed our way of agriculture completely.” Christiansen then enjoyed lunch with farmers in the field, testing local chicken with sadza (maize porridge) and muriwo (rape leaves). Wrap-up discussions with the GCAP team focused on developing new strategies to bridge funding gaps when projects end to ensure continuity with stakeholders. Christiansen added examples from her own experience in Tanzania and stressed the need to involve the private sector in GCAP activities.

The visit was a great success for everybody involved, as Christiansen saw first-hand the work of GCAP scientists in the region, while the scientists used the opportunity to highlight challenges with current funding and support needed in future work.

Hidden factors contribute to food insecurity in female-headed households

Written by on July 1, 2014. Posted in News.

By Florence Sipalla/CIMMYT

Results of a survey conducted by the Adoption Pathways (AP) project indicate that even when male-headed and female-headed households have the same resources, the latter are still less food-secure. This difference could be attributed to unreported social exclusion, discrimination and access to credit facilities which the researchers will explore further through group discussions and using repeated observations (panel data) with the farmers.

ACIAR donor representatives at Egerton University.

“Equal access to inputs, human capital, resources and institutional services may not close the gender food security gap,” said Menale Kassie, CIMMYT socioeconomist and the AP project leader. “The quality of information extension workers are providing to female farmers could be different.” Kassie presented research results of a survey conducted in Ethiopia, Kenya, Malawi, Mozambique and Tanzania to donor representatives from the Australian Centre for International Agricultural Research (ACIAR) led by Nick Austin, the chief executive officer, and Mellissa Wood, director of the Australian International Food Security Research Centre (AIFSRC) at Egerton University in Njoro, Kenya.

Farmers who adopt a suite of conservation agriculture (CA) technologies get the best returns. “If farmers combine technologies, the income they generate is much higher,” Kassie said. “Farmers who adopted a combination of sustainable intensification practices (SIPs) such as crop rotation, minimum tillage and improved maize seed had the highest returns.” Survey results from Tanzania also show that adoption of improved varieties improves the food security status of food-insecure households.

The results also shed light on the spill-over effects of SIP adoption, risk of crop failure and the cost of risk reduction. The AP project is compiling detailed gender-disaggregated data to study causes of food insecurity and technology gaps. “This data set is cross-cutting and will be used by stakeholders beyond the project partners,” Kassie said. “We are bringing students on board to increase research productivity.”

From right: Donor representatives ACIAR CEO Nick Austin, AIFSRC director Mellissa Wood and Australian High Commission’s Paul Greener listen to Egerton University

Wilcyster Nyateko, a master’s student at Egerton University using AP data and working under the supervision of Professor Gideon Obare, presented her research proposal “Determinants of diffusion of agro-innovation amongst smallholder farmers in Eastern and Western Kenya” to the donor delegation. “The AP data helped to widen my perspectives,” said Nyateko, who is going to include variables such as plot characteristics, tenure and distance of the plot from the household and market in her analysis based on the feedback she received. Other stakeholders who will have access to the panel data include Egerton University’s policy thinktank, Tegemeo Institute. “This is a fascinating data set,” Austin said after the presentation.

The project has contributed to capacity building of partners and young economists who have participated in data collection. “The project also provided employment opportunities to the enumerators,” Kassie said. The project has produced 15 publications and seven policy briefs and presented research results in various international forums. “Some of the challenges encountered include attrition problems such as spouses working in distant places and who are not able to participate in the survey or families included in the original sample who had migrated to other villages.”

AP plans to produce more empirical outputs using the panel data, build the capacity of partners and share the research outputs with key stakeholders (e.g. policymakers, development partners, researchers and farmers). “The key challenge is taking research products to these stakeholders; doing so requires more resources and time, beyond the project period,” Kassie said. The donors also paid a courtesy call to the Egerton University leadership where they were hosted by Professor Rose Mwonya, the deputy vice chancellor of academic affairs, and Professor John Mwangi, who gave them an overview of the university and its involvement in the AP project.

Maize lethal necrosis screening facility seeing signs of success

Written by on June 3, 2014. Posted in News.

CIMMYT pathologist George Mahuku and MLN technician Janet Kimunye examine tassels for pollen production on an infected plant. MLN causes a symptom called ‘tassel blast’ where the tassels of infected plants do not shed or produce pollen. Photos courtesy of George Mahuku

By George Mahuku and Florence Sipalla/CIMMYT

Germplasm screening at the maize lethal necrosis (MLN) screening facility at the Kenya Agricultural Research Institute (KARI) Naivasha is underway, and CIMMYT pathologist George Mahuku said some inoculated lines are showing levels of resistance.

He described the green islands among the maze of yellow in the fields as a demonstration of the success of the testing protocols being used at the site. “This is the lifeline for farmers,” he said. “Next we will be incorporating genes from these lines into adapted germplasm and using the Doubled Haploid facility in Kiboko to quickly develop inbred lines with resistance to MLN.”The deadly maize disease was first identified in Kenya in 2011 and has since been diagnosed in the Democratic Republic of Congo, Rwanda, Tanzania and Uganda. The MLN screening facility was established in 2013 with funding from the Bill & Melinda Gates Foundation and the Syngenta Foundation for Sustainable Agriculture to serve maize breeding institutions in Sub-Saharan Africa in response to 2014 the emergence of the disease.

CIMMYT pathologist George Mahuku inspecting plants that show tolerance to MLN in Naivasha, Kenya.

“To date, we have planted more than 19,000 different types of germplasm on 15 hectares,” Mahuku said. “This germplasm was submitted by both private and public sector partners, including CIMMYT and the International Institute of Tropical Agriculture (IITA).”

All germplasm has been inoculated, Mahuku said, and symptoms are fully visible. Operations at the facility include maintaining pure strains of the viruses that cause MLN, producing inoculum for artificial inoculation, evaluating maize hybrids and inbred lines for response to MLN and building the capacity of stakeholders including scientists, technicians, farmers and extension workers to handle the disease.

The facility also provides employment opportunities for the community, hiring more than 30 people for activities such as weeding, irrigation and disease scoring. Because the facility screens germplasm from different countries, it’s isolated from farmers’ maize plots and certified as a quarantine site. “We still do not fully understand the variability in virus strains, whether the virus strains in Rwanda, Tanzania or Uganda are the same as the ones in Kenya,” said Mahuku.

After disease evaluations, all plant debris will be disposed of by incineration. The facility has received many visitors from universities, international organizations and public and private institutions. “There is a lot of interest in learning and knowing the disease,” Mahuku said.

It recently hosted two scientists from Ethiopia who will share the knowledge gained with their colleagues and will conduct surveys to assess whether the disease is in their country. “To see all this going well is breathtaking,” said CIMMYT technician Janet Kimunye, who is in charge of virus maintenance, inoculum production and inoculations in the field and has been involved in MLN research from the beginning, initially as a consultant to CIMMYT.

“We have assembled a really good team here; watching them work way into the night and weekend is heartening,” said Mahuku. “Everybody wants a solution to this problem that is threatening their food security.”

One of the greenhouses where artificial inoculum is produced and multiplied for research purposes.

Facts about the Facility:

Area planted: 15 ha
Number of rows: 49,500
Total germplasm: 19,539
Inoculated area: 6.5 ha
Disease expression: 4.5 ha is under disease evaluation as symptoms are expressing well

Sources of Germplasm Sources of Entries Screened

CIMMYT/IITA: 13,699
Private sector (seed companies): 3,781
Public institutions (NARS): 2,059
Total: 19,539

Adoption Pathways project strengthens partnership with Kenya’s Egerton University

Written by on May 30, 2014. Posted in News.

By Florence Sipalla/CIMMYT

CIMMYT and Kenya’s Egerton University have agreed to strengthen their research collaboration, policy formulation and data sharing and to engage more graduate students in data analysis as part of the Adoption Pathways (AP) project. “This will accelerate the use of data sets to quickly produce products,” said Menale Kassie, CIMMYT socioeconomist, who is also the AP project leader.

Through AP, CIMMYT is partnering with universities in Ethiopia, Kenya, Malawi, Mozambique and Tanzania to identify the incentives and constraints to farmers’ adoption of new techniques in maize-legume systems. The project is funded by the Australian International Food Security Research Centre (AIFSRC) and managed by the Australian Centre for International Agricultural Research (ACIAR).

CIMMYT and Egerton University have pledged to strengthen their collaboration through capacity building, research, policy advocacy and data sharing, especially through the Adoption Pathways project. Photos: Florence Sipalla

The enhanced collaboration between CIMMYT and Egerton was discussed at a meeting held at the CIMMYT-Nairobi office on 24 April and attended by Professor James Tuitoek, vice chancellor at Egerton; Professor Gideon Obare, the AP national coordinator in Kenya and a lecturer at the university; and Mary Mathenge, director of the Tegemeo Institute of Public Policy and Development, a policy think tank of Egerton University based in Nairobi.

Senior staff from Tegemeo, which specializes in agricultural policy formulation backed by data, will supervise the graduate students in collaboration with CIMMYT, Tuitoek said. The two institutions train young economists pursuing postgraduate degrees, and research on maize is a major component of their socioeconomic studies. “Almost 50 percent of Tegemeo’s research has been on maize policy,” said Mathenge. “It is often difficult to showcase the value of economic research to policymakers because it is an intangible product – it is not like a new seed variety, for example,” said Kassie. Despite that challenge, Kassie is confident that the partnership with Tegemeo will be mutually beneficial. “If we work with Tegemeo, who already have established ways of packaging research outcomes from economics studies, then we can have a far greater impact from the work we do.”

Update: CIMMYT maize inbred lines and pre-commercial hybrids with potential resistance to maize lethal necrosis (MLN)

Written by on May 22, 2014. Posted in News.

By B.M. Prasanna/CIMMYT

Since 2011 MLN has become a disease of serious concern in Kenya, Tanzania, Uganda and possibly Rwanda. CIMMYT has been working in close collaboration with the Kenya Agricultural Research Institute (KARI), private sector partners and virology experts from the USA to combat the disease through host-controlled resistance.

MLN-susceptible line (CML505) versus MLN-resistant inbred line (CLRCY034).

A CIMMYT-KARI MLN screening facility was established at Naivasha in September 2013, and a large array of maize germplasm is presently being evaluated against the disease under artificial inoculation. Subsequent to the development of effective protocols, CIMMYT and KARI have been conducting MLN screening trials in Kenya since 2012, to identify promising inbred lines and pre-commercial maize hybrids with resistance to MLN.

A promising pre-release CIMMYT hybrid versus an MLN-susceptible commercial check.

This is the second update of the information on potential MLN-resistant or moderately resistant inbred lines and pre-commercial hybrids (crossed with CIMMYT varieties), following the first update that was shared with public and private sector partners in May 2013. An evaluation of CIMMYT inbred lines and pre-commercial hybrids was done under artificial inoculation during 2013-2014 in two independent trials, at Narok and Naivasha sites in the Rift Valley, Kenya (Tables 1 and 2).

In each trial, the entries were grown in at least two replications, and MLN severity scores were recorded at different stages of crop growth (vegetative and reproductive stages) on a 1-5 scale (1 = no disease symptoms, 5 = extensive damage). The highest MLN severity score recorded across different trials on a particular entry, and the corresponding disease response rating, are presented here. For a list of the new lines and hybrids, click here.

Update: CIMMYT maize inbred lines and pre-commercial hybrids with potential resistance to maize lethal necrosis (MLN)

Written by on May 13, 2014. Posted in News.

A promising pre-release CIMMYT hybrid versus an MLN-susceptible commercial check. Since 2011 MLN has become a disease of serious concern in the east African countries of Kenya, Tanzania, Uganda and possibly Rwanda. CIMMYT has been working in close collaboration with the Kenya Agricultural Research Institute (KARI), private sector partners and virology experts from the USA to combat the disease through host-controlled resistance. A CIMMYT-KARI MLN Screening Facility was established at Naivasha in September 2013, and a large array of maize germplasm is presently being evaluated against the disease under artificial inoculation. Subsequent to the development of effective protocols, CIMMYT and KARI have been conducting MLN screening trials in Kenya since 2012, to identify promising inbred lines and pre-commercial maize hybrids with resistance to MLN. This is the second update of the information on potential MLN-resistant or moderately resistant inbred lines and pre-commercial hybrids (in CIMMYT genetic backgrounds), following the first update that was shared with public and private sector partners in May 2013.

An evaluation of CIMMYT inbred lines and pre-commercial hybrids was done under artificial inoculation during 2013-2014 in two independent trials, at Narok and Naivasha sites in the Rift Valley, Kenya (Tables 1 and 2). In each trial, the entries were grown in at least two replications, and MLN severity scores were recorded at different stages of crop growth (vegetative and reproductive stages) on a 1-5 scale (1 = no disease symptoms, 5 = extensive damage). The highest MLN severity score recorded across different trials on a particular entry, and the corresponding disease response rating, are presented here.

Table 1. Responses of selected CIMMYT maize inbred lines to artificial inoculation with MLN
at Narok and Naivasha, Kenya (2013-2014)

Inbred line	Kernel color	Heterotic Group	Max. MLN severity score	Disease response rating
CLRCY039	Y	B	2.0	R
CLYN261	Y	A	2.0	R
CLRCY034	Y	B	2.0	R
CKDHL120552	W	A	2.3	MR
CKDHL120161	W	B	2.4	MR
CKDHL120668	W	B	2.4	MR
CKDHL120664	W	B	2.4	MR
CML494	W	B	2.5	MR
TZMI730*	W	B	2.5	MR
CKDHL120918	W	B	2.5	MR
CML550	W	B	2.6	MR
CML543 (CKL05003)	W	B	2.7	MR
CKDHL120671	W	B	2.7	MR
CLA106	Y	B	2.7	MR
CKSBL10205	W	AB	2.7	MR
CKSBL10194	W	AB	2.8	MR
CML535 (CLA105)	Y	B	2.8	MR
CKSBL10060	W	A	2.9	MR
CKDHL121310	W	B	3.0	MR
DTPYC9-F46-1-2-1-2-B	Y	A	3.0	MR
CKDHL0500	W	B	3.0	MR

*IITA Inbred Line

Abbreviations Y: Yellow; W: White
Disease Response Rating R: Resistant (max. MLN severity score ≤2.0) MR: Moderately resistant (max. MLN severity score ≥2.0 but ≤3.0) S: Susceptible (max. MLN severity score >3.0)	MLN Severity Scoring (1-5 Scale) 1 = No MLN symptoms 2 = Fine chlorotic streaks on lower leaves 3 = Chlorotic mottling throughout plant 4 = Excessive chlorotic mottling and dead heart 5 = Complete plant necrosis

Table 2. Responses of selected CIMMYT pre-commercial hybrids under artificial inoculation
against MLN at Narok and Naivasha, Kenya (2013-2014)

Hybrid	Pedigree	Max. MLN severity score	Disease response rating
CKH12613	Under NPT in Tanzania	2.25	MR
CKH12622	CML444/CML445//CLWN234	2.33	MR
CKH12603	Under NPT in Uganda	2.37	MR
CKH12623	CML539/CML442//CLWN234	2.38	MR
CKH12624	CML539/CML442//CML373	2.45	MR
CKIR12014	CML312/CML442// CKSBL10028	2.49	MR
CKH12625	CML444/CML445//CML373	2.50	MR
CKIR12007	CML78/P100C6-200-1-1-B-B-B-B-B// CKSBL10014	2.50	MR
CKDHH0970	CKDHL0089/CKDHL0323//CKDHL0221	2.50	MR
CKIR11024	CML78/P300C5S1B-2-3-2-#-#-1-2-B-B-#// CKSBL10060	2.51	MR
CKH12607	Under NPT in Tanzania	2.51	MR
CKH10085	Under NPT in Kenya	2.62	MR
CKH12600	Under NPT in Uganda and Tanzania	2.66	MR
CKH12627	CLRCW106//CML444/CML395	2.70	MR
CKDHH0943	CKDHL0159/CKDHL0282//CKDHL0214	2.75	MR
CKDHH0945	CKDHL0089/CML395//CKDHL0214	2.75	MR
CKH12626	CML395/CML488//CML373	2.77	MR

Note: The responses of the promising hybrids mentioned above are being validated through
experiments at the MLN Screening Facility in Naivasha

MLN Severity Scoring (1-5 Scale)
1 = No MLN symptoms
2 = Fine chlorotic streaks on lower leaves
3 = Chlorotic mottling throughout plant
4 = Excessive chlorotic mottling and dead heart
5 = Complete plant necrosis

Disease Response Rating
R: Resistant (max. MLN severity score ≤2.0)
MR: Moderately resistant (max. MLN severity
score ≥2.0 but ≤3.0)

For further information on:

MLN research-for-development efforts undertaken by CIMMYT, please contact:
Dr. B.M. Prasanna, Director, Global Maize Program, CIMMYT, Nairobi, Kenya;
Email: b.m.prasanna@cgiar.org
Availability of seed material of the promising lines and pre-commercial hybrids, please contact:
Dr. Mosisa Regasa (m.regasa@cgiar.org) if your institution is based in eastern Africa, or Dr. James Gethi (j.gethi@cgiar.org) if your institution is based in southern Africa or outside eastern and southern Africa.

Researchers learn use of equipment for improved phenotyping

Written by on May 10, 2014. Posted in News.

By Wandera Ojanji/CIMMYT

Andrew Chavangi demonstrates the use of a seed counter.

Amini Mataka, a research officer for CIMMYT’s Southern Africa Regional Office in Zimbabwe, was one of many Water Efficient Maize for Africa (WEMA) scientists and technicians who experienced difficulty using data generation and processing equipment.

But after attending the “Towards Quality Data through Effective and Efficient Use of Equipment in WEMA” training course held in Nairobi, Kenya, on 15-22 March, this is no longer the case. “I can now confidently and competently use the Motorola Scanner, make it compatible with computers and use Fieldbook to analyze data and prepare nurseries and trials,” Mataka said.

According to Stephen Mugo, CIMMYT Global Maize Program principal scientist and CIMMYT-WEMA team leader, these difficulties encouraged WEMA to train 28 scientists and technicians from CIMMYT and national agricultural research systems from the five WEMA countries – Kenya, Mozambique, South Africa, Tanzania and Uganda. The training provided participants with skills in the preparation of nurseries and trial design and seed preparation using Fieldbook; the printing of seed packet and field labels in Fieldbook; the basics of data collection using equipment and data analysis using appropriate software; and the use and care of computers, printers, seed counters, threshers and data collection equipment.

Patrick Chomba demonstrates how the bulk sheller operates. Photo: Wandera Ojanji

Caroline Thatelo, senior research technician for the Agricultural Research Council-South Africa, learned how to use Fieldbook, a tool developed by CIMMYT maize breeders for managing experiments and data analysis using the open-source data analysis software “R.” “We had problems using Fieldbook when we started,” Thatelo said. “But the practical demonstrations we have gone through have now made me perfect in the use of Fieldbook. I can now create an inventory, a seed increase nursery, a nursery to form single crosses, a stock list, consolidate inventories, generate trials and analyze data for single- and multi-location sites using Fieldbook.”

To some, like Gabriel Ambani, senior technician at the Kenya Agricultural Research Institute (KARI)-Kakamega, Kenya, the training was an eye-opener. “Before this training, I had no hands-on experience on the use of most of the equipment we were trained on, particularly the Motorola Scanner, label printers and bulk sheller,” he said. “I now have increased competence and am looking forward to applying my gained knowledge and skills to effectively use the equipment.”

Caroline Thatelo receives her certificate of completion from Sylvester Oikeh.

Sylvester Oikeh, WEMA project manager, called on the participants to put their new skills into use. “I want to see improvements in data collection and analysis. Do not be afraid to use the equipment and Fieldbook,” he said. “You are bound to make mistakes. But through the mistakes, you will figure out the right way to operate the equipment and use Fieldbook. You will get it right after several attempts.”

Several CIMMYT scientists and technicians helped organize and facilitate the workshop, including breeders Stephen Mugo and Yoseph Beyene; technicians Andrew Chavangi, John Gakunga and Collins Juma; and Joel Mbithi, CIMMYT-Kiboko farm manager. WEMA Phase II is funded by the Bill & Melinda Gates Foundation, the United States Agency for International Development-Feed the Future initiative and the Howard G. Buffett Foundation.

Supporting sustainable intensification by tracking farmers’ adoption patterns

Written by on May 9, 2014. Posted in News.

By Florence Sipalla/CIMMYT

Identifying the socioeconomic constraints farmers face in adopting a technology is central to ensuring they adopt it sustainably. This is the work that the Pathways to Sustainable Intensification in Eastern and Southern Africa (Adoption Pathways) project is doing in collaboration with partners from national universities and agriculture research systems in Africa and Europe.

Adoption Pathways partners met in Addis Ababa, Ethiopia, on 10-12 April to review activities to date and to plan for 2014. The four-year project is funded by the Australian International Food Security Research Centre (AIFSRC) and managed by the Australian Centre for International Agricultural Research (ACIAR). Project partners from seven institutions collaborating on the project in Ethiopia, Kenya, Malawi, Mozambique and Tanzania attended the meeting.

Participants included policymakers and vice-chancellors from universities as well as donor representatives – John Dixon, ACIAR principal adviser for research/cropping systems and economics and Liz Ogutu, ACIAR regional manager for Africa. Fentahun Mengistu, director general of the Ethiopian Institute of Agricultural Research (EIAR), officially opened the meeting and described the project as one that represents a unique cross-country research and development effort.

“Africa is at the tipping point,” said Dixon, adding that six of the world’s top 10 fastest growing countries are in Africa. Dixon identified food, economic growth and sustainable intensification as keys to tapping global opportunities. “Sustainable intensification of maize and legumes will increase resources productivity and reduce production risk,” he said.

Understanding what drives farmers to take up different sustainable intensification practices (SIPs) — such as zero/minimum tillage, maize-legume intercropping, maize-legume rotations, new maize and legume varieties and using chemical fertilizer — is important. The project has developed several policy briefs based on research to share its outputs with a wider audience. “Don’t just push policymakers but push them with evidence,” said Wilfred Mwangi, CIMMYT’s regional representative for Africa. Mwangi emphasized the need for policy dialogue and more capacity building.

The project has helped train 18 early-career economists in research design and implementation. An additional 120 people have gained practical experience in conducting surveys through their participation as enumerators or supervisors. Mengistu said the project has “planted seeds for impact” because different countries can benefit from the regional approach to tackling development challenges.

Referencing a policy brief on the SIPs adopted by farmers in Ethiopia, he noted that farmers who implemented a suite of multiple agronomic practices were able to double or even triple their income from maize. Menale Kassie, the Adoption Pathways project leader, shared some of the project’s key achievements, which include establishing panel data, analysis to determine gaps in technology adoption through a gender lens, impact analysis and risk assessment. “We need policy dialogue, followed by policy advocacy,” Kassie said. “We would be happy if our products are used by our partners.”

Policymakers, including top university administrators, pledged their support for policy advocacy. “We will help support this project through linkages with policymakers and the Ministry of Agriculture,” said James Tuitoek, professor and vice-chancellor at Egerton University in Kenya. Angelo Macuacua, professor and vice-chancellor at Eduardo Mondlane University in Mozambique, thanked the project for inviting the vice-chancellors to participate in the meeting.

“It helps us understand, in detail, the work the researchers are doing,” he said. Other vice-chancellors at the meeting were Professor Phiri Kanyama and Professor Gerald Monela from Malawi’s Lilongwe University of Agriculture and Natural Resources (formerly known as Bunda College) and Sokoine University of Agriculture in Tanzania.

The importance of monitoring and evaluation in project implementation was emphasized by AIFSRC’s Ogutu. “Results from this project will not only help farmers, there is potential on a larger scale,” she said. The meeting provided partners an opportunity to closely interact, share their research results and plan for the next phase of activities.

Breeders trained on molecular markers data analysis in Tanzania

Written by on April 22, 2014. Posted in News.

By Kassa Semagn/CIMMYT

A training course held in Tanzania provided maize breeders with hands-on experience in using molecular markers for quality control analysis (genetic identity, genetic purity and parentage verification), germplasm characterization, marker-assisted backcrossing and marker-assisted recurrent selection.

Partners recognize achievements in insect-resistant maize delivery

Written by on April 21, 2014. Posted in News.

By Wandera Ojanji/CIMMYT

The Insect Resistant Maize for Africa (IRMA) project received praise for significant progress on field and post-harvest insect pest research at its conclusion last month.

“Several new maize hybrids and open pollinated varieties with substantial insect resistance have been produced that will greatly benefit maize growers in eastern and southern Africa,” said Mike Robinson, program officer for the Syngenta Foundation for Sustainable Agriculture (SFSA) at the IRMA End-of-Project Conference in Nairobi, Kenya, from 24-26 February. Robinson congratulated CIMMYT and project partners and wished the participating organizations continued success. The purpose of the conference was to share experiences, achievements and lessons from IRMA III and discuss future prospects in the release, dissemination and use of insect-resistant maize in eastern and southern Africa.

It drew more than 80 participants from CIMMYT, national agricultural research systems, national universities, donors and the seed industry. The Developing Maize Resistant to Stem Borer and Storage Insect Pests for Eastern and Southern Africa project, known as IRMA III Conventional Project 2009-2013, was managed by CIMMYT and funded by SFSA. Building on progress and breakthroughs of IRMA I and II, IRMA III contributed to food security by developing and availing field and post-harvest insect-resistant maize varieties in Ethiopia, Kenya, Malawi, Mozambique, Tanzania, Uganda, Zambia and Zimbabwe.

Collectively, these countries produce about 26 million tons and consume 32 million tons of maize annually. Relatively low maize productivity in the countries – about 1.3 tons per hectare (t/ha) compared to 4.9 t/ha worldwide – can be attributed in part to stem borers, according to Stephen Mugo, CIMMYT principal scientist and IRMA project leader. Stem borers destroy as much as 15 percent of maize crops, while maize weevils and the larger grain borer destroy 20 to 30 percent of harvested maize. Hugo De Groote, CIMMYT economist, estimated the losses from stem borers at 13.5 percent, or 4 million tons, and those from storage pests at 11.2 percent, or 3.5 million tons, with the total value of these losses estimated at just over US$1 billion in the region. “Addressing the challenges that farmers face in producing and storing maize is vital to the future food security of the region,” Robinson said. “Minimizing such losses in an economically sustainable way will significantly contribute to nutrition and food security.”

IRMA III addressed these challenges through identification and commercial release of major insect-resistant maize cultivars; identification of new germplasm sources of resistance to stem borer and post-harvest insect pests among landraces, open pollinated varieties (OPVs) and CIMMYT lines (CMLs); and development of new insect-resistant germplasm. Kenya released 13 stem borer-resistant (SBR) conventional maize varieties (three OPVs and 10 hybrids) and four storage pest-resistant (SPR) hybrids. Kenya has also nominated nearly 10 stem borer- and four postharvest- resistant hybrids to national performance trials.

Three insect-resistant varieties —two hybrids (KH 414-1 SBR and KH 414-4 SBR) and one OPV (Pamuka) – were commercialized in Kenya by Monsanto, Wakala Seeds and the Kenya Agricultural Research Institute Seed Unit. De Groote estimated the annual value of project benefits at between US$ 19 million and US$ 388 million. He put the benefit-cost ratio at 94 in the optimistic scenario, meaning that for each dollar the project spent, farmers would gain 95, indicating very good returns.

“These results justify the important role that breeding for resistance could play in reducing maize losses, and the high potential returns to such programs in the future,” De Groote stated. Looking to the future, Mugo emphasized the need to ensure farmers have access to the insect-resistant varieties. “We must, from now on, engage in variety dissemination and commercialization of the new SBR and SPR varieties,” Mugo said. “We need a more targeted breeding program that incorporates drought, nitrogen use efficiency and maize lethal necrotic disease tolerance.”

WEMA releases record number of maize varieties in Africa

Written by on March 14, 2014. Posted in News.

By Wandera Ojanji/CIMMYT

The Water Efficient Maize for Africa (WEMA) project is on-track to produce and distribute at least 25 drought-tolerant maize hybrids for farmers in Kenya, Mozambique, South Africa, Tanzania and Uganda during its second phase.

In 2013, the project commercially released 15 drought-tolerant maize hybrids, with 84 more nominated for national performance trials. “This is a rare feat,” said Sylvester Oikeh, WEMA project manager, during the project’s Sixth Annual Review and Planning meeting from 7 to13 February. “In the history of maize research in Africa, only one entity – WEMA – has released 15 hybrids in a single year.”

At its inception in 2008, WEMA promised to develop and deploy maize varieties that would not only tolerate moderate drought but also provide 20 to 35 percent more grain yield than currently available commercial hybrids. Buoyed by the success of the breeding pipelines in Phase I (2008-2013), the partnership set the 25-hybrid target in February 2013 for Phase II (2013-2017).

Also in 2013, WEMA helped smallholder farmers harvest the drought-tolerant maize variety WE1101, sold under the brand name DroughtTEGO™, said Denis Kyetere, executive director of the African Agricultural Technology Foundation (AATF). The hybrid recorded impressive sales in Kenya, according to Gospel Omanya, AATF’s seed systems manager and WEMA deployment team leader. From September 2013 to January 2014, farmers purchased 42.5 tons of the 72 total tons of seed distributed to seed companies. Omanya expects additional sales and adoption of the hybrid, due to its outstanding performance – an average yield of 4.5 tons per hectare (t/ha) during the short rain season, compared to Kenya’s average maize yield of 1.8 t/ha. WE1101 is one of the hybrids developed using breeding lines from the Drought Tolerant Maize for Africa (DTMA) project. Natalie DiNicola, vice president for Europe and Africa for Monsanto, lauded WEMA partners for the achievement. “Thank you for making it happen, for getting the products into the hands of farmers,” DiNicola said.

Uganda Minister of State for Agriculture Nyiira Zerubabel also praised the progress. “Your effort in addressing maize production constraints and increasing productivity levels are highly commendable,” stated Nyiira in a speech read on his behalf by Okaasai Opolot, Uganda’s director of crop resources, during the official opening of the meeting. He urged the project partners to deliver a holistic package to the farmers. “Your work should ensure that the varieties you develop achieve the expected performance that delivers high quantities and qualities by addressing these issues: good crop and post-harvest management practices and productivity, access to markets for rural farmers, efficient seed systems to boost productivity, and value addition initiatives that will improve rural incomes.”

Participants experienced the best of WEMA breeding and testing in Uganda when they visited Namulonge Research Station, where confined field trials of MON810 and other WEMA conventional hybrids are under way. Lawrence Kent, senior program officer of agriculture, science and technology for the Bill & Melinda Gates Foundation, urged WEMA partners to aim for higher impact over the next four years. “We must generate and reach more farmers with products. I am excited about the promising MON810 results so far and I urge you to seize the opportunity and forge ahead with commercializing it and making it available to needy farmers.”

(Seated from right) John MuMurdy, international research and biotechnology advisor, USAID; Natalie DiNicola, Monsanto’s vice president for Europe and Africa; Lawrence Kent, senior program officer, Agriculture, Science and Technology, the Bill & Melinda Gates Foundation; Okaasai Opolot, Uganda’s director of crop resources; and Denis Kyetere, executive director, the Africa Agricultural Technology Foundation. Speaking is B.M. Prasanna, director of CIMMYT’s global maize program. Photos: Wandera Ojanji/CIMMYT

B.M. Prasanna, director of CIMMYT’s global maize program, noted that maize lethal necrosis (MLN) disease had serious consequences on seed production and delivery and crop production in 2013. “Seed shipments were restricted,” said Prasanna, “and maize cultivation was shut down in affected areas, limiting seed production and breeding activities.” At the same time, said Prasanna, the MLN threat is an opportunity to replace old varieties on the market with higher-yielding, resistant ones. More than 2,000 maize lines were screened under natural infections of MLN in two seasons in Kenya during 2013. “We found clear-cut responses and identified some very promising resistance,” Prasanna said.

He added that the resistance would be speedily incorporated into breeding lines and populations through screening at the MLN facility in Naivasha and use of the doubled haploid facility in Kiboko, both inaugurated in March 2013. Partners are also following protocols circulated by CIMMYT to ensure the pathogen-free production and exchange of maize breeding materials. The WEMA advisory board has recommended that the project intensify the breeding of conventional maize varieties for Mozambique and Tanzania, engage large seed companies to use WEMA products, develop exclusive licensing for current products and encourage governments to facilitate trials of transgenic maize.

WEMA Phase II is funded by the Bill & Melinda Gates Foundation, the U.S. Agency for International Development (USAID) and the Howard G. Buffett Foundation.

Seed systems team strategizes and plans for Africa

Written by on March 10, 2014. Posted in News.

By Florence Sipalla/CIMMYT

The CIMMYT-Africa seed systems team met in Nairobi, Kenya, on 7 February to take stock of progress in 2013, identify challenges and brainstorm on turning those challenges into opportunities. Global Maize Program (GMP) Director B.M. Prasanna and members of the breeding, communications and socioeconomics teams also attended.

CIMMYT partners to combat parasite

Written by on February 13, 2014. Posted in News.

By Brenna Goth/CIMMYT

A partnership launched on 3 February by the U.S. Agency for International Development (USAID) Feed the Future Partnering for Innovation and led by the African Agricultural Technology Foundation (AATF) will help CIMMYT and other partners to fight a parasitic plant affecting maize production.

Known locally as “witchweed,” the parasitic plant Striga spp. casts no spells but uses needle-like tendrils to suck nutrients from maize roots. The weed is prevalent in Nyanza and Western Provinces of Kenya, where it grows on some 200,000 hectares and causes crop damage worth an estimated US$ 80 million per year. Photo: CIMMYT

The three-year, performancebased grant of US$ 3 million is the largest grant awarded by Feed the Future Partnering for Innovation to date, according to an AATF press release. Feed the Future Partnering for Innovation supports projects increasing the productivity of smallholder farmers while AATF promotes sustainable agricultural technology for smallholder farmers in Sub-Saharan Africa.

The funding will help improve maize production in east Africa by “upscaling the commercialization of StrigAway^TM – an herbicidetolerant seed and treatment that controls the infestation of Striga – a parasitic weed that often results in total crop loss and even abandonment of arable land,” the press release said. Striga – commonly known as witchweed – can cause 20 to 80 percent crop loss in maize and affects 1.4 million hectares in Kenya, Tanzania and Uganda, according to the release.

CIMMYT helped develop the StrigAway^TM technology package along with partners including the Weizmann Institute of Science in Israel. An herbicide-tolerant maize variety is coated with an herbicide that kills Striga when the seed is sown and sprouts.

Other partners, including the agrochemical company BASF and six local seed companies, will promote the project in the three target countries. The project aims to create 4,000 demonstration plots and sell 1,000 metric tons of seed to 20,000 smallholder farmers. Partners will also offer technical support on how to use the seed and launch campaigns and promotion of StrigAway^TM.

Two-wheel tractor seed drill modified for African smallholder maize farmers

Written by on October 8, 2013. Posted in Features.

The modified ‘Gongli Africa +.’ Photo: Frédéric Baudron/CIMMYT

By Frédéric Baudron/CIMMYT

The Farm Mechanization and Conservation Agriculture for Sustainable Intensification (FACASI) project is addressing the decline of farm power in Africa. The project is working with smallholder farmers to deliver small mechanization based on inexpensive, two-wheel tractors and introduce power-saving technologies, such as conservation agriculture.

Last March, participants evaluated the performance of the Gongli seeder – a seed drill sold in China – under the typical conditions of maize smallholder farmers in Kenya and Tanzania. Gongli inventor Jeff Esdaile, engineers from the Centre for Agricultural Mechanization and Rural Technology (CAMATEC) and engineers from the Kenya Network for Dissemination of Agricultural Technologies met at a CAMATEC workshop from 9 to 20 September in Arusha, Tanzania, to modify the Gongli seeder and produce the Gongli Africa +. The original Gongli seeder is well suited to seed small-grain crops in close rows into fields without long, loose residue or heavy weeds. For sowing maize in a typical field around Arusha, however, the machine had several shortfalls: it handled loose maize residues and heavy weeds poorly; the pressing wheels got in the way of the operator’s walk; the seed and fertilizer hoppers were too high and blocked the operator’s visibility; the seed meters were not precise enough for maize planting; and transporting the machine from field to field required walking long distances because the machine cannot be ridden and does not fit in a trailer.

The modified Gongli Africa + features cutting discs that can be fitted in front of the standard tines for heavy mulch and weed loads. Two large back tires, used as pressing wheels in the field, were added, as well as a platform for the operator to stand on, facilitating transport to and from the fields. Because the machine will be used to sow a maximum of two rows, the third bar was removed from the seeder. The seed and fertilizer hoppers were lowered, and, finally, specialized seed metering systems for large seeds such as those of maize were installed. Results from initial field testing were encouraging. Thorough field testing will take place next November in Tanzania and Kenya. After minor modifications, the specifications of the Gongli Africa + will be sent to Gongli LTD for commercial manufacturing.