Farmer participatory crop improvement. IV. The spread and impact of a rice variety identified by participatory varietal selection

摘要: Participatory varietal selection in a development project western India showed that the rice ( Oryza sativa ) variety Kalinga III was highly preferred by farmers. The spatial diffusion of this from three villages (two and one non-project) studied. Seed had spread 1994 to 41 1996 is estimated have reached over 100 widely distributed 1997. Farmer-to-farmer as high non-project case study village received no further seed project, possibly because farmers are more likely new other when they assured supply. Project interventions used key villages, informal-sector merchants, Non-Government Organizations seed. also collaborated with Rajasthan State Agricultural University has been proposed for release state. A financial analysis revealed very internal rates return possible investment participatory selection.