早中熟豇豆新品种绵豇7号的选育

Breeding of a New Cowpea Cultivar, Mianjiang No.7

绵豇7号是从湘豇1号×之豇28-2的杂交后代中,采用系统育种法选育而成的常规豇豆新品种。早中熟,生长势强,分枝少,主蔓结荚为主,春季播种至始收68 d左右。商品荚长圆条形,荚色浅绿,荚长56 cm左右,单荚质量15 g左右,肉厚,粗细均匀,荚纤维含量少,鼠尾少,商品性好。春季每667 m2嫩荚产量2 200 kg左右。适应性广,可作春露地及秋季栽培。

Mianjiang No.7 is a new cowpea that breeding by using system breeding method. Its parents were chosen from generation that hybridized by Xiangjiang No.1 as the female parent and Zhijiang 28-2 as the male parent. This cultivar has advantages of early-mid maturity, strong growth and subramose. It mainly pods in main stem. The time from sowing to first harvest is 68 days in spring. The pod is long round, green, 56 cm in length, 17 g in weight, and possesses good quality and high commodity. The average yield is about 2 200 kg/667 m^2 in spring. It has good suitability, and is suitableto be cultivated in open field in spring and autumn.