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The role of Contract Farming in the Development of a Competitive and Sustainable Cassava Sub-sector in Vietnam. Tiago Wandschneider, Project Leader SADU-CIAT 8th Asian Cassava Research Workshop Vientiane, 20-24 October.


Wandschneider, T.[The role of contract farming in the development of a competitive and sustainable cassava sub-sector in Vietnam]The role of contract farming in the development of a competitive and sustainable cassava sub-sector in Vietnam

Researchers worked with farmers in eastern Uganda to develop alternatives for soil management using crotalaria (Crotalaria ochroleuca), mucuna (Mucuna pruriens var. utilis), lablab (Dolichos lablab), and canavalia (Canavalia ensiformis) as green manures in short-term fallows. The participatory re...


Fischler, MAWortmann, Charles S.[Green manures for maize-bean systems in eastern Uganda: Agronomic performance and farmers' perceptions]Green manures for maize-bean systems in eastern Uganda: Agronomic performance and farmers' perceptions

Genotype x environment interactions, genotype response to environments and stability for seed yield of navy bean genotypes (Phaseolus vulgaris L.) were studied. Sixteen genotypes were grown in a randomised complete block design with three replications at four locations in Ethiopia. Genotype x env...


Gebeyehu, SAssefa, H.[Genotype x environment interaction and stability analysis of seed yield in navy bean genotypes]Genotype x environment interaction and stability analysis of seed yield in navy bean genotypes

Eighty-three F2-derived F8 recombinant inbred lines (RILs) randomly selected from a population (TY 8419) of two common bean genotypes (Pinto UI 114 x ICA Pijao), the two parents, and a control cultivar (Topcrop) were screened for their reaction to bean golden mosaic virus (BGMV) under glasshouse ...


Morales, Francisco JoséSingh, Shree P.[Breeding for resistance to bean golden mosaic virus in an interracial population of Phaseolus vulgaris L]Breeding for resistance to bean golden mosaic virus in an interracial population of Phaseolus vulgaris L

Major challenges for combined use of organic and mineral nutrient sources in smallholder agriculture include variable type and quality of the resources, their limited availability, timing of their relative application and the proportions at which the two should be combined. Short-term nutrient su...


Mtambanengwe, F.Mapfumo, PaulVanlauwe, Bernard[Comparative short-term effects of different quality organic resources on maize productivity under two different environments in Zimbabwe]Comparative short-term effects of different quality organic resources on maize productivity under two different environments in Zimbabwe

Kihara, Job[Predicting crop yield and response to nutrients from soil spectra: example from Sub-Sahara Africa]Predicting crop yield and response to nutrients from soil spectra: example from Sub-Sahara Africa

To determine the most important production constraints and associated yield losses for six major food crops in 13 farming systems with high poverty in Sub-Saharan Africa, South Asia and East Asia, surveys were conducted with 672 experts representing a diversity of backgrounds and experience. Resp...


Waddington, S.R.Li, XDixon, John A.Hyman, GlennVicente, M.C. de[Getting the focus right: production constraints for six major food crops in Asian and African farming systems]Getting the focus right: production constraints for six major food crops in Asian and African farming systems

Soil nutrient depletion as a result of continuous cultivation of soils without adequate addition of external inputs is a major challenge in the highlands of Kenya. An experiment was set up in Meru South District, Kenya in 2000 to investigate the effects of different soil-incorporated organic (man...


Mucheru-Muna, M.Mugendi, DNKung'u, J.B.Mugwe, JBationo, B. André[Effects of organic and mineral fertilizer inputs on maize yield and soil chemical properties in a maize cropping systems in Meru South District, Kenya]Effects of organic and mineral fertilizer inputs on maize yield and soil chemical properties in a maize cropping systems in Meru South District, Kenya

Protocols were established for screening rice genotypes for tolerance to water-limited conditions under field conditions. These protocols were successfully used to select the best genotypes for further experiments. Rice genotypes responded differently when subjected to water-limited conditions. E...


Sakai, TDuque E., Myriam CristinaVallejo Cabrera, Franco AlirioPompilio Martinez, CIshitani, Manabu[Establishment of drought screening protocols for rice under field conditions = Protocolo para la selección de genotipos de arroz tolerantes a déficit hídrico en campo]Establishment of drought screening protocols for rice under field conditions = Protocolo para la selección de genotipos de arroz tolerantes a déficit hídrico en campo
Assefa, T.Beebe, Stephen E.Rao, Idupulapati M.Cuasquer, Juan B.Duque E., Myriam CristinaRivera, MarielaBattisti, ALucchin, M[Pod harvest index as a selection criterion to improve drought resistance in white pea bean]Pod harvest index as a selection criterion to improve drought resistance in white pea bean

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