publication
Quantitative trait loci for root morphology traits under aluminum stress in common bean (Phaseolus vulgaris L.)
Department for International Development (DFID)
Abstract
Aluminum (Al) toxicity is a major limiting factor of crop production in acid soils, which are found mostly in developing countries of the tropics and sub-tropics. Common bean (Phaseolus vulgaris L.) is particularly sensitive to Al toxicity; and development of genotypes with better root growth in Al-toxic soils is a priority. The objectives of the present study were to…
publication
Characterization of AT-rich microsatellites in common bean (Phaseolus vulgaris L.)
Department for International Development (DFID)
Abstract
Polymorphism of microsatellite markers is often associated with the simple sequence repeat motif targeted. AT-rich microsatellites tend to be highly variable and this appears to be notable, especially in legume genomes. To analyze the value of AT-rich microsatellites for common bean (Phaseolus vulgaris L.), we developed a total of 85 new microsatellite markers, 74 of which targeted ATA or other…
publication
Biofortified Black Beans in a Maize and Bean Diet Provide More Bioavailable Iron to Piglets Than Standard Black Beans
Department for International Development (DFID)
Abstract
Our objective was to compare the capacities of biofortified and standard black beans (Phaseolus vulgaris L.) to deliver iron (Fe) for hemoglobin (Hb) synthesis. Two lines of black beans, one standard and the other biofortified (high) in Fe (71 and 106 µg Fe/g, respectively), were used. Maize-based diets containing the beans were formulated to meet the nutrient…
publication
Selection for Drought Resistance in Common Bean Also Improves Yield in Phosphorus Limited and Favorable Environments
Department for International Development (DFID)
Abstract
An estimated 60% of common bean (Phaseolus vulgaris L.) production worldwide is at risk of drought. A breeding program was developed at the International Center of Tropical Agriculture (CIAT) to create drought resistant breeding lines with varietal potential in the small red, small black, cream (mulatinho) and cream-striped (carioca) grain classes. Breeding…
publication
Simultaneous adoption of integrated soil fertility management technologies in the Chinyanja Triangle, Southern Africa
International Center for Agricultural Research in the Dry Areas (ICARDA)
Abstract
Empirical scientific evidence indicates that there is still room for increasing food production by improving land productivity. This study aimed at identifying the key determinants that govern farmersâ?? decisions to adopt multiple components of integrated soil fertility management (ISFM) in a maize mixed cropping system of the Chinyanja…
publication
Is nitrogen accumulation in grain legumes responsive to growth or ontogeny?
International Center for Agricultural Research in the Dry Areas (ICARDA)
Abstract
Nitrogen (N) accumulation in legumes is one of the main determinants of crop yield. Although N accumulation from symbiotic nitrogen fixation or N absorption from the soil has been widely investigated, there is no clear consensus on timing of the beginning of N accumulation and the termination of N accumulation and the physiological events that may be associated with these two…
publication
Drivers of household food availability in sub-Saharan Africa based on big data from small farms
International Institute of Tropical Agriculture (IITA)
Abstract
We calculated a simple indicator of food availability using data from 93 sites in 17 countries across contrasted agroecologies in sub-
Saharan Africa (>13,000 farm households) and analyzed the drivers of variations in food availability. Crop production was the major source of energy, contributing 60% of food availability. The off-farm income contribution to food…
publication
Understanding variability in crop response to fertilizer and amendments in sub-Saharan Africa
International Institute of Tropical Agriculture (IITA)
Abstract
Improved understanding of soil fertility factors limiting crop productivity is important to develop appropriate soil and nutrient management recommendations in sub-Saharan Africa. Diagnostic trials were implemented in Kenya, Malawi, Mali, Nigeria and Tanzania, as part of the African Soils Information Service (AfSIS) project, to identify soil fertility constraints to crop…
publication
The role of forages in sustainable intensification of crop-livestock agro-ecosystems in the face of climate change: the case for landscapes in Babati, northern Tanzania
International Institute of Tropical Agriculture (IITA)
Publication year
2016
Full Citation
F. Kizito et al., 'The role of forages in sustainable intensification of crop-livestock agro-ecosystems in the face of climate change: the case for landscapes in Babati, northern Tanzania', pp.411-430, Springer, 2016…
publication
Vulnerability to climate change of cocoa in West Africa: Patterns, opportunities and limits to adaptation
International Institute of Tropical Agriculture (IITA)
Abstract
The West African cocoa belt, reaching from Sierra Leone to southern Cameroon, is the origin of about 70% of the world's cocoa (Theobroma cacao), which in turn is the basis of the livelihoods of about two million farmers. We analyze cocoa's vulnerability to climate change in the West African cocoa belt, based on climate projections for the 2050s of 19 Global…
publication
Future Climate Projections in Africa: Where Are We Headed?
International Institute of Tropical Agriculture (IITA)
Abstract
This paper offers an overview of how climate change is already affecting farmers across eastern and southern Africa, and how it will continue to affect them in the future. The rising temperatures and increased rainfall variability associated with climate change are undermining the livelihoods and food security of Africaâ??s farmers, most of whom work at a subsistence level and also face problems of poverty,…
publication
Integrating climate change adaptation and mitigation in east African coffee ecosystems
International Institute of Tropical Agriculture (IITA)
Publication year
2013
Full Citation
H. Van Rikxoort, L. Jassogne, P. Laderach, P. Van Asten, 'Integrating climate change adaptation and mitigation in east African coffee ecosystems', pp.175-183, Routledge, 2013
Publication Type
Scientific Publication
Coffee…
publication
Senna siamea trees recycle Ca from a Ca-rich subsoil and increase the topsoil pH in agroforestry systems in the West African derived savanna zone
International Institute of Tropical Agriculture (IITA)
Abstract
The functioning of trees as a safety-net for capturing nutrients leached beyond the reach of crop roots was evaluated by investigating changes in exchangeable cations (Ca, Mg, and K) and pH in a wide range of medium to long term alley cropping trials in the derived savanna of West Africa, compared to no-tree control plots.…
publication
Climate smart agriculture rapid appraisal (CSA-RA): A tool for prioritizing context-specific climate smart agriculture technologies
International Institute of Tropical Agriculture (IITA)
Abstract
Approaches that aim to identify and prioritize locally appropriate climate smart agriculture (CSA) technologies will need to address the context-specific multi-dimensional complexity in agricultural systems. The climate smart agriculture rapid appraisal (CSA-RA) is a mixed method approach that draws on participatory bottom-up, qualitative,…
publication
What are the key factors influencing consumers? preference and willingness to pay for meat products in Eastern DRC?
International Institute of Tropical Agriculture (IITA)
Abstract
Dietary patterns for consumers among the elite and middle?income classes in developing countries are shifting rapidly toward the consumption of more animal?based products. Although this shift presents opportunities, there are significant market failures affecting their preferences and willingness to pay (WTP). This study used a multistage sample survey of…
