A complete set of guidelines is provided for conducting cassava regional trials. In addition to general guidelines on site selection, exptl. design, planting and harvesting time, and others, specific recommendations are given on technology to be used for the different agronomic practices required, data collection, disease and insect damage evaluati...
The status of CIAT bean technology development is analyzed and technology transfer activities in the crop in Latin America are indicated. Each phase in the development of technology that will allow major bean yield increases is discussed, namely the identification of production constraints, germplasm collection and evaluation, cv. improvement using...
On-farm trials were established by the Institut des Sciences Agronomiques du Rwanda (ISAR) to test bean adaptability in various sites with different agroecological conditions. The farmer`s cultural techniques regarding planting density and date, sowing method, and crop cultivation were strictly respected. In the high and middle altitude regions, yi...
Although farmer participation is an important concept in farming systems programs, farmer participation is typically restricted to the management of on-farm trials and little information exists on alternative approaches. This paper evaluates three approaches to farmer participation differentiated by the extent to which farmers participated in defin...
