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首页> 外文期刊>African Journal of Food, Agriculture, Nutrition and Development >Assessment of common bean ( Phaseolus vulgaris l.) Seed quality produced under different cropping systems by smallholder farmers in eastern Ethiopia
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Assessment of common bean ( Phaseolus vulgaris l.) Seed quality produced under different cropping systems by smallholder farmers in eastern Ethiopia

机译：埃塞俄比亚东部小农户不同种植方式下生产的普通豆（菜豆）种子质量评估

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One of the major causes of low yield of common bean in Ethiopia is the shortage and/or inaccessibility of high quality seed. In the Hararghe highlands of eastern Ethiopia, farmers often use common bean seeds produced both under sole crop and intercrop systems. This study was carried out to investigate the physical, physiological and health qualities of common bean seed produced under sole crop and intercrop systems by smallholder farmers of three districts of West Hararghe zone, Eastern Ethiopia. Samples from seed retained for 2011 main cropping season planting were collected from 100 households and tested using standard laboratory procedures. Results indicated that seeds obtained from sole crop were different from those obtained from intercrop system in physical purity and percentage of pathogen infected seeds whereas the physiological quality related characteristics were similar between the two cropping systems. With a mean pure seed proportion of above 98%, all seed samples obtained from sole and intercrop cropping systems met the national seed standard for common bean seed (95%). About 20 and 50% seed samples obtained from intercrop and sole crop, respectively, had seed moisture content below the minimum national standard for common bean seed (12%). Standard germination of seeds of both cropping systems exhibited a wide range of variation with a mean of 75 and 84% for sole crop and intercrop originated seeds, respectively. Common bacterial blight (Xanthomonas campestris pv. phaseoli) and Aspergillus flavus were the most common bacterial and fungal diseases associated with the seed samples. Higher percentage of CBB infection was found for sole seeds relative to those obtained from intercrops. It is concluded that in areas where agricultural land is limited, farmers can produce and use common bean seed of acceptable quality produced under sole andintercropping systems provided that appropriate production and post-harvest management practices are followed.
机译：埃塞俄比亚普通豆低产的主要原因之一是优质种子的短缺和/或难以获得。在埃塞俄比亚东部的哈拉格高地，农民经常使用在单一作物和间作系统下生产的普通豆子种子。这项研究的目的是调查埃塞俄比亚东部西哈拉格地区三个地区的小农在单一作物和间作系统下生产的普通豆种子的生理，生理和健康质量。从100户家庭中收集了2011年主要作物种植季节保留的种子样品，并使用标准实验室程序进行了测试。结果表明，从单一作物获得的种子与从间作系统获得的种子的物理纯度和病原体感染种子的百分比不同，而两种作物系统的生理质量相关特征相似。从单一和间作系统获得的所有种子样品的平均纯种子比例均超过98％，均达到了普通豆种子的国家种子标准（95％）。从间作作物和单一作物获得的种子样品中，分别约有20％和50％的种子含水量低于普通豆类种子的最低国家标准（12％）。两种作物系统的种子标准发芽均表现出很大的变异性，单一作物和间作种子的平均发芽率分别为75％和84％。常见的细菌性疫病（黄单胞菌pv。phaseoli）和黄曲霉是与种子样品相关的最常见的细菌和真菌病。相对于从间作作物获得的唯一种子，发现CBB感染的百分比更高。结论是，在农业土地有限的地区，只要遵循适当的生产和收获后管理措施，农民就可以生产和使用在单一和间作制度下生产的质量合格的普通豆种子。

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