豇豆新品种绵紫豇1号的选育

绵紫豇1号是从龙豇24单株优选株系403-2和春秋红紫皮长豇豆优选株系2441的杂交后代中,采用系统选育法育成的紫色豇豆新品种。中熟,生育期71 d(天)左右。始花节位为第5~6节,花淡紫色,种子肾形,红褐色。商品荚长45~55 cm,单荚质量15 g左右,紫红色,肉厚,粗细均匀,顺直不弯曲,荚纤维含量少,鼠尾少。综合性状优良,花青素含量为0.97 mg·g~(-1)。春季栽培产量为1 800~2 100 kg·(667 m~2)~(-1),适宜四川豇豆产区种植。

A New Cowpea Variety -‘ Mianzijiang No.1’

‘Mianzijiang No.1’ is a new purple cowpea variety developed by crossing breeding material ‘403-2’ as female parent and‘ 2441’ as male parent through system selective breeding．It is of medium maturity. Its growth period is about 71 days．The first inflorescence occurs at the 5-6th node．Its flower is light purple in color，and seed is reddish-brown and of kidney shape．The cowpea pod is 45-55 cm in length．The single pod weight is about 15 g．The pod has even thickness，less fibre and tail．Its comprehensive characteristics are superior．The anthocyanins content is 0.97 mg·g^-1．The yield in spring cultivation is 27.0-31.5 t·hm^-2．It is suitable for planting in cowpea production areas of Sichuan Province．