豇豆抗蚜种质资源的筛选

Screening of Cowpea Germplasm Resources with Resistance to Aphids

蚜虫是为害豇豆的主要害虫之一。运用豇豆种植期田间调查相对蚜害指数和非种植期在温室内调查蚜虫在不同豇豆材料上的生育历期2种方法,对自国内外搜集的110份豇豆种质资源进行了抗蚜性鉴定。结果表明:2种方法均可以鉴定出高抗、抗和中抗蚜虫资源,且鉴定结果一致,110份豇豆种质资源中有2份豇豆材料表现为高抗蚜虫、2份豇豆材料表现为抗蚜虫、1份豇豆材料表现为中抗蚜虫。本研究筛选出的2份高抗蚜虫豇豆种质,可以在资源创新和育种上提供利用。

Aphid is one of the major pests for cowpeas. Aphid resistance of 110 cowpea germplasm resources collected at home and abroad were identified by two evaluation strategies of investigation of the relative index of damage to cowpea by aphids at planting time in the field and aphids development stages of life sytle in different cowpea materials at non planting time in the greenhouse. The results indicated that the cowpea germplasm resources with high resistance, resistance and medium resistance to aphid could be identified by two evaluation methods, and the results were consistent. There were 2 germplasms with high resistance, 2 with resistance among 110 cowpea germplasm resources, 1 with medium resistance. The 2 copies of high aphid-resistant cowpea germplasm identified from this study can be released for innovation and breeding directly.