Buscar
Mostrando ítems 11-20 de 55
Article
Assessing the potential economic impact of Bacillus thuringiensis (Bt) maize in Kenya
(Academic Journals, 2011)
The Insect Resistant Maize for Africa (IRMA) project is currently developing Bt maize for Kenya. So far, Bt genes with resistance to Chilo partellus, Chilo orichalcociliellus, Eldana sacharina, and Sesamia calamistis, four ...
Article
Evaluation of stem borer resistance management strategies for Bt maize in Kenya based on alternative host refugia
(Academic Journals, 2011)
Stem borers are the major insect pests of maize in Kenya. The use of Bacillus thuringiensis (Bt) technology is an effective way of controlling lepidopteran pests. However, the likelihood of development of resistance to ...
Article
Combining ability of maize (Zea mays L.) inbred lines resistant to stem borers
(Academic Journals, 2011)
Ten inbred parents with varying resistance levels to Chilo partellus and Busseola fusca were crossed in a half diallel mating scheme to generate 45 F1 hybrids. The hybrids and five commercial checks were evaluated across ...
Article
Experiences in effective communication on transgenic technology in Africa - the case of the insect resistant maize for Africa (IRMA) project
(Academic Journals, 2011)
The Insect Resistant Maize for Africa (IRMA) Project, aimed to improve food security through developing and deploying locally adapted stem borer resistant maize varieties using both conventional and biotechnology mediated ...
Article
Testing public Bt maize events for control of stem borers in the first confined field trials in Kenya
(Academic Journals, 2011)
Transgenic maize (Zea mays L), developed using modified genes from the bacterium Bacillus thuringiensis (Bt), controls stem borers without observable negative effects to humans, livestock or the environment, and is now ...
Article
Genotype by environment interactions and yield stability of stem borer resistant maize hybrids in Kenya
(Academic Journals, 2011)
In a maize breeding program, potential genotypes are usually evaluated in different environments before desirable ones are selected. Genotype x environment (G x E) interaction is associated with the differential performance ...
Article
Levels of control of Chilo partellus stem borer in segregating tropical Bt maize populations in Kenya
(Academic Journals, 2011)
In Kenya, stem borers destroy an estimated 400,000 metric tons, or 13.5%, of farmers' annual maize harvest costing about US$80 millions. Bacillus thuringiensis (Bt) maize controls stem borers without harming humans, livestock ...
Article
Control of Busseola fusca and Chilo partellus stem borers by Bacillus thuringiensis (Bt)-δ-endotoxins from Cry1Ab gene Event MON810 in greenhouse containment trials
(Academic Journals, 2011)
Previous testing of several public Bacillus thuringiensis (Bt)-maize events did not show control of the African stem borer (Busseola fusca Fuller), an important stem borer species, without which stewardship would be ...
Article
Grain yield, stem borer and disease resistance of new maize hybrids in Kenya
(Academic Journals, 2011)
Evaluation of 30 maize hybrids for yield and resistance to stem borers and foliar diseases in four agro-ecologies in Kenya was conducted in 2009. There were significant differences among the hybrids in leaf damage, number ...
Article
Implication of rate and time of nitrogen application on wheat (Triticum aestivum. l .) yield and quality in Kenya
(Elewa BioSciences, 2011)
In Kenya, Nitrogen is the first limiting macro-element on many farms where bread wheat (Triticum aestivum) has been grown continuously for more than a decade. On-farm trials were conducted in Kenya by superimposing the ...