Scientists prepare for confined field trials of life-saving drought-tolerant transgenic maize

Oct 14, 2010

Crop specialists in Kenya and Uganda have laid the groundwork for confined field trials to commence later this year for new varieties of maize genetically modified to survive recurrent droughts that threaten over 300 million Africans for whom maize is life, according to a speech given today by the head of the African Agricultural Technology Foundation (AATF) at the World Food Prize Symposium.

Scientists working with AATF believe it's important to explore the potential of biotechnology to maintain and increase food production in Africa, given the large number of families dependent on maize, and warnings that maize yields could drop dramatically as climate change increases drought frequency and severity across the continent.

There is preliminary evidence that the Water Efficient Maize for Africa (WEMA) varieties, which were developed through a public-private partnership, could provide yields 24-35 percent higher than what farmers are now growing.

The process for testing the WEMA varieties has been informed by a series of "mock trials" conducted in 2009 in Kenya and Tanzania. The mock trials carefully simulated field conditions, procedures, and regulatory oversight that will occur in the actual trials.

"The mock trials have provided an opportunity for researchers working on the WEMA project to fine-tune the procedures of carrying out the actual transgenic trial in 2010," according to Daniel Mataruka, executive director of AATF.

The mock trials were supervised by national biosafety committees in both countries and adhered to all requirements that will apply to transgenic plants.

"Everything we have seen in the simulated trials shows that we can safely test transgenic maize varieties in carefully controlled and confined field trials in Africa and evaluate their potential to produce high yields in ," said Dr. James Gethi, the WEMA-Kenya country coordinator.

Drought is the most important constraint to African agricultural production, and its effects are particularly severe on maize, which is the most widely-grown staple on the continent. For millions of small-scale farmers who rely on rainfall to water their crops, risk of crop failure from drought is a major barrier to the adoption of improved farming practices.

A more reliable harvest could give farmers the confidence to invest in improved techniques that could further boost their yields and incomes.

The push to develop drought-tolerant varieties has been given added urgency by threats likely to come from climate change. A study by scientists at the Consultative Group on International Agricultural Research (CGIAR) warns that by 2050, could make droughts more frequent and intense, potentially causing maize yields to drop by 20 percent or more in parts of East Africa, including northern Uganda and southern Sudan, and semi-arid areas of Kenya and Tanzania. The Food and Agriculture Organization of the United Nations (FAO) has acknowledged biotechnology as a powerful tool in the effort to develop drought-tolerant crops.

The drought-tolerant WEMA varieties are being developed under a partnership involving AATF, the International Maize and Wheat Improvement Center (CIMMYT), Monsanto, and the national agriculture research systems in Kenya, Tanzania, Mozambique, South Africa and Uganda. CIMMYT has provided high-yield maize varieties adapted to African conditions, while Monsanto has provided proprietary genetic resources (germplasm), advanced breeding tools and expertise, and drought-tolerant transgenes developed in collaboration with BASF.

According to AATF, experience has shown that the gains possible through advanced breeding and biotechnology are greater and faster than those that can be achieved through breeding alone.

"There have already been positive gains made in drought tolerance using traditional breeding methods by our partners," said Mataruka. "WEMA is working to further increase those gains in drought tolerance in hybrids adapted to eastern and southern Africa through both advanced breeding techniques and biotechnology."

If the transgenic corn is found to be safe and successful, the new varieties will be made available to smallholder farmers royalty-free. Under its agreement with its partners, any approved varieties would be licensed to AATF, which would then distribute to farmers through local seed supplies at a price competitive with other types of seed. The project partners expect that pricing will not be influenced by the requirement to pay royalties, as none of the partners will receive any royalty payment from seed companies for the tolerant lines/transgenic trait incorporating their intellectual property protected technology.

Pending regulatory approval, at least 12 WEMA varieties will be tested in confined field trials (CFTs) in Kenya, Uganda, Tanzania, South Africa and Mozambique. After the trials, the transgenic corn produced in the CFTs will be destroyed in compliance with the regulations in the respective countries.

Explore further: Gene doubling shapes the world: Instant speciation, biodiversity, and the root of our existence

Provided by Burness Communications

not rated yet
add to favorites email to friend print save as pdf

Related Stories

Maize research reduces poverty in west and central Africa

Oct 28, 2009

An analysis of three and half decades of maize research in African farming communities finds big benefits. A multi-country study, in Agricultural Economics, reports the significant role international maize research plays ...

Dangerous wheat disease jumps Red Sea

Jan 16, 2007

A new form of stem rust, a virulent wheat disease, has jumped from eastern Africa and is now infecting wheat in Yemen in the Arabian Peninsula.

Recommended for you

MaxBin: Automated sorting through metagenomes

Sep 29, 2014

Microbes – the single-celled organisms that dominate every ecosystem on Earth - have an amazing ability to feed on plant biomass and convert it into other chemical products. Tapping into this talent has ...

User comments : 1

Adjust slider to filter visible comments by rank

Display comments: newest first

Kev_C
not rated yet Oct 15, 2010
The use of Transgenic seed in Africa is a fatal mistake. Their understanding of bio-security is limited by their lack of infrastructure and the necessary organisations to police it. If these crops escape to cross contaminate the indigenous populations of maize like they have in Mexico then they are totally screwed for any future trade agreements with non-GMO countries. This is a one shot chance which has no get out of jail free card as a viable option.
All I wonder is how long before the Bio-tech industry starts shoveling in their herbicides and pesticides and demanding extortionate patent protected licence fees? Yes I know it says the farmers won't pay a penny in royalties but that's all well and good until such time as all the agreements come up for renewal. Besides this is merely a freebie bribe and then the pain comes later. I bet they start exporting the maize as animal feed to Europe and the US in the next 5-10 years as well just like they do from South American countries.