Research Article
Effect of Conventional and Improved Threshing Methods on Common Beans (Phaseolus vulgaris L.) Seed Quantity and Quality in Central Rift Valley of Ethiopia
Kedir Oshone*
,
Mideksa Bekele
Issue:
Volume 10, Issue 1, June 2025
Pages:
1-15
Received:
10 December 2024
Accepted:
20 December 2024
Published:
14 January 2025
DOI:
10.11648/j.ijbbmb.20251001.11
Downloads:
Views:
Abstract: Due to poor quality seeds currently, many seed lots of common beans (Phaseolus vulgaris L.) producing by various seeds producers in Central Rift Valley of Ethiopia were rejecting by external seed regulatory body. The field and lab experiments were carried out at MARC, TMSR farm field, and seed research and quality control lab, Ethiopia to investigate the effect of conventional and improved threshing methods on genotypes of common beans seed quantity and quality. The experiment consisted treatment combinations of threshing methods and genotypes and its interaction effects. Each variety was planted in the field using RCBD design with four replications. Seed quality parameters were carried out at seed research and quality control, and plant protection laboratories. At laboratories each seed sample was analyzed using CRD design with three replications. The result showed that there were high significant (P < 0.01) interaction effects between variety and threshing method for seed yields, damaged seeds, 1000-seed weight, standard germination, dead seeds, shoot and root lengths, and vigour index-I. Speed of germination was decreased significantly (P < 0.01) as days of emergence increased with the number of germinated seeds decreased slightly. This finding suggested that seed quantity losses reduced while seeds threshed by stick beating followed by portable multi crop thresher machine in small and medium scale production irrespective of varieties. Significant interaction effects of variety with threshing method and significant differences among varieties and threshing methods in laboratories might be reliable indicators for seed quantity and quality losses.
Abstract: Due to poor quality seeds currently, many seed lots of common beans (Phaseolus vulgaris L.) producing by various seeds producers in Central Rift Valley of Ethiopia were rejecting by external seed regulatory body. The field and lab experiments were carried out at MARC, TMSR farm field, and seed research and quality control lab, Ethiopia to investiga...
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