Participatory variety selection of common Bean (Phaseolus vulgaris L.) Released varieties for productivity and resistance to major diseases in Halaba Special District, Southern Ethiopia
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Abstract
Common bean (Phaseolus vulgaris L,) is the second important legume crops, next to fababean in Ethiopia. However, its national average yield (1.6 t ha -1 ) is far below the yield ofimproved varieties in research fields (3.5 t ha -1 ). This is, mainly, due to inadequate supply of quality seeds of the improved varieties and disease problem. Participatoryvariety selection on common bean was conducted in Halaba district in Southern Ethiopiawith the objectives of identifying disease resistant and farmers-preferred varieties, and investigating farmers’ variety selection criteria. In the study, 10 varieties were laid out ina grandmother and mother trials. Analysis of variance showed that varieties were significantly different for yield and yield components. The mean separation for the combined yield data analysis revealed that varieties Hawassa-dumme (4.91 t ha -1 ) andSER-119 (4.70 t ha -1 ) produced significantly highest yield. The varieties were also highly significantly different in disease reaction. Angular Leaf Spot was the most prevailed disease, followed by Ascochyta Blight. Highest angular leaf spot incidence was observedon varieties Kat-B9, Nasir, SAB-632 and Remeda with 100, 95, 93.33 and 93.33%,respectively; while SER-125 and Ibado had least incidence of 31.67 and 46.67,respectively. Generally, Kat-B9 was susceptible, while SER-119, Tatu and SER-125 wereresistant. During pre and post harvest variety evaluation farmers preferred varieties Hawassa-dumme and SER-119, because of their more pods per plant, upright growth,dark red seed color, highest yield and market demand. Therefore, we recommend themfor Halaba and similar districts.