豇豆新品种之豇618的选育

A New Cowpea Cultivar-‘Zhijiang 618’

之豇618是以从四川引进的麻子豇豆为母本,以从辽宁引进的ZH优选株系为父本进行杂交,采用系统选育结合分子标记辅助抗枯萎病鉴定育成的中熟豇豆新品种。植株蔓生,花紫色,主侧蔓均可结荚,平均单株结荚14.4条;商品荚油绿色,条荚顺直,喙绿色,鼠尾少,平均荚长63.7 cm,单荚质量26.6 g,豆荚肉厚,粗纤维含量低,口感糯、微甜,可溶性糖含量为24.0 mg·g^-1;对日照长短不敏感,中抗枯萎病和病毒病,早期产量与之豇106相当,总产量2000 kg·(667 m^2)^-1左右,适宜在全国各地(除高寒地区外)种植。

‘Zhijiang 618’is a new cowpea cultivar developed by crossing‘Mazijiangdou’introduced from Sichuan Province as female parent with‘ZH’introduced from Liaoning Province a superior selective strain as male parent.It is a new cowpea variety of medium maturity bred by systematic selection combined with marker assisted wilt resistance identification.As a sprawled plant,‘Zhijiang 618’has purple flowers.The pods can be set both in the main and side vines.The average single plant can set 14.4 pods.The commocial pods are oil green in color.The pod holder is straight with green beak and little rat tail.The average pod length is 63.7 cm and single pod weight is 26.6 g.The pod has thick peel with low fiber content.It tastes glutinous and slight sweet.Its soluble suger content is 24.0 mg·g^-1.It is not sensitive to day length and shows middle resistance to furisum wilt and virus disease.Its yield at early stage is equal to that of‘Zhijiang 106’.The total yield is about 30 t·hm^-2.It is suitable to be planted in every part of China(except alpine regions).