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Mostrando ítems 11-20 de 39
Article
Comparative economics of maize production in risky environments in Zimbabwe
(CIMMYT, 1990)
Planting strategies of smallholder farmers are examined in two contrasting study areas in Zimbabwe, Mangwende (sub-humid, natural region II) and Mudzi (semi-arid, natural region IV). to show that farmers regard maize as a ...
Article
Response of four maize varieties to nitrogen at Lisungwi extension planning area, Mwanza, Malawi
(CIMMYT, 1992)
Lisungwi Extension Planning Area (EPA) in Mwanza Rural Development Project (RDP) has insufficient rainfall for optimum maize growth. The soils are generally low in organic matter, nitrogen, phosphorus, and magnesium. Farmers ...
Article
Efficiency of managed-stress screening of elite maize hybrids under drought and low-N for yield under rainfed conditions in Southern Africa
(Crop Science Society of America (CSSA), 2012)
Maize (Zea mays L.) yields in southern Africa are low, due largely to drought and low-N stress. Selection of stress-tolerant genotypes by CIMMYT is conducted indirectly under managed stress conditions, although the selection ...
Article
Using innovation platforms to scale out soil acidity-ameliorating technologies in Dedza district in central Malawi
(Academic Journals, 2012)
Soil acidity is a serious constraint in crop production in some parts of Malawi, particularly in high rainfall and high altitude areas. A learning platform was established in Bembeke Extension Planning Area (EPA) (14¡ã ...
Article
Selection for drought tolerance in two tropical maize populations
(African Crop Science Society, 2003)
Drought is a major factor limiting maize ( Zea mays check for this species in other resources L.) yield in much of the world. The need to breed maize cultivars with improved drought tolerance is apparent. This study compared ...
Article
Bt-transgenic maize does not deter oviposition by two important African cereal stem borers, Chilo partellus Swinhoe (Lepidoptera: Crambidae) and Sesamia calamistis Hampson (Lepidoptera: Noctuidae)
(FacT Limited, 2008)
Objective: To assess Chilo partellus Swinhoe (Lepidoptera: Crambidae) and Sesamia calamistis Hampson (Lepidoptera: Noctuidae) ovipositional responses on Bt (Event 216, containing the Cry1Ab gene) and isogenic non-Bt (CML ...
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
Molecular characterization of diverse CIMMYT maize inbred lines from eastern and southern Africa using single nucleotide polymorphic markers
(BioMed Central, 2012)
Background: Knowledge of germplasm diversity and relationships among elite breeding materials is fundamentally important in crop improvement. We genotyped 450 maize inbred lines developed and/or widely used by CIMMYT ...
Article
Farmer perceptions on maize cultivars in the marginal eastern belt of Zimbabwe and their implications for breeding
(African Crop Science Society, 2006)
Productivity of maize ( Zea mays check for this species in other resources ) is low in the small-holder sector of Zimbabwe because the crop is grown under stress-prone environments and limited resources. The objective of ...
Article
Developing Bt maize for resource-poor farmers - Recent advances in the IRMA project
(Academic Journals, 2005)
This paper presents an overview of the advances in the IRMA project, which develops insect resistant maize varieties for resource-poor farmers, using both conventional breeding and genetic engineering. The project started ...