Authors : Tura Bareke and Zemede Asfaw
Abstract: Losses of landrace diversity are believed to generate erosion and this has enormous influence on agricultural biodiversity. This study was undertaken to determine the genetic erosion of common bean landraces and ways of seed management in south eastern Ethiopia. Data collection was conducted using semi-structured interview guide and field observation. The mean genetic erosion in Loka Abaya was significantly different (p<0.05) from other districts showing the highest mean genetic erosion while it was the lowest in Silti District. The mean genetic erosion in districts ranged from 31.85-78.13% showing ongoing genetic erosion in common bean. Agricultural extension system was a major cause of landrace loss linking it with the escalating promotion of improved varieties. Landraces considered late-maturing types and having relatively low market demands and values are becoming increasingly vulnerable to replacement by early-maturing and those having high market demands and values. Farmers need to be encouraged and supported by stakeholders to consciously monitor the conservation of common bean landraces for all their worth which include use values, agroecological intensification income generation potential, role in breeding and other domestic purposes.
Tura Bareke and Zemede Asfaw, 2018. Genetic Erosion of Common Bean (Phaseolus vulgaris L., Fabaceae) Landraces in Southeastern Ethiopia. Agricultural Journal, 13: 29-33.