豇豆新品种湘豇2002-6的选育

A New Yardlong Bean Variety ‘Xiangjiang2002-6'

湘豇2002-6是湖南农业大学以抗病性和适应性强的千禧豇豆为母本、豆荚深绿色的湘豇2号为父本进行杂交,通过连续8代的系统选育而成的绿豆荚类型豇豆新品种.该品种花淡紫色,豆荚豆荚绿白色,嫩荚尖部紫红色,荚长约54.1 cm,荚横径约0.78 cm,单荚质量约20 g,单荚种子数18粒,早熟.春季栽培,全生育期100～110 d,播种至始花70～75 d,抗病性强.夏秋栽培全生育期95～105 d,播种至始收45～50 d.豆荚整齐一致,长度适中,肉质细嫩,蛋白质含量高,达4.24％,商品性好.每667 m2豆荚产量2400 kg左右.适合春、夏、秋季栽培.

＇Xiangjiang 2002-6＇ is a new hybrid yardlong bean variety bred by using ＇Qianxi＇ as female parent and ＇Xi- angjiang 2＇ as male parent. The pod is green color and the bottom of the pod is mauve color. The beans are 54.1 cm long and 0.78 cm in diameter, weighing about 20 g per pod with 18 seed in the pod. The plant flower 70-75 days from sowing and the whole cycle is 100-110 days for spring crop. The summer crop is shorter. The pod is uniform, tender and with protein content up to 4.24%. The yield per 667 m2 is about 2 400 kg. The variety has good resistance and is suitable for production in spring, summer and autumn.