菜用大豆新品种宁豆4号的选育

A New Vegetable Soybean Variety—‘Ningdou No.4'

宁豆4号是以宁镇3号为母本,以苏豆8号为父本杂交后经系统选育而成的菜用大豆新品种。属春播晚熟品种,播种至采收青荚95d(天);出苗势强,生长稳健,亚有限结荚习性。基部叶片为椭圆形,中部为长椭圆形,顶部为披针形,叶色较深。株高75.2cm,主茎13.4节,分枝3.8个,单株结荚67.2个,多粒荚率为65.9%,标准荚312个·kg-1,二粒荚长5.6cm、宽1.2cm,鲜籽百粒重70g以上,出仁率53.8%。鲜荚平均产量为740.4kg·(667m2)-1,鲜粒平均产量为375.5kg·(667m2)-1。干籽粒椭圆形,种皮黄色,种脐淡褐色。鲜籽口感香甜柔嫩。宁豆4号具有高产、稳产、适应性广等优点,适合江苏省及生态条件相似地区作春播鲜食大豆栽培。

The new soybean variety ＇Ningdou No.4＇ is developed by crossing ＇Ningzhen No.3＇ as female parent and ＇Sudou No.8＇ as male parent.It belongs to late maturing variety.It takes 95 days from sowing to pod harvest.Its emergence potential is strong and it can grow- steadily.Its leaves are of ideal shape,the bottom one is elliptic,central one is long elliptic,and the top one is lanceolate.The leaf color is deep.The plant height is 75.2cm.There are 13.4 nodes on the main stem,and 3.8 nodes on the branch.The single plant can have 67.2 pods,and the multi pod percentage is 65.9%.The standard pod rate is 312 pod · kg^-1.The second seed pod is 5.6 cm in length,1.2 cm in width.One hundred fresh seed weight is over 70 g,and the kernel rate is 53.8%.The yield of fresh pod is 11.14 t ·hm^-2,and the yield of fresh seed is 5.6 t ·hm^-2 The dry seed has oval shape with yellow peel and light hazel navel.The fresh pod is sweet and tender.＇Ningdou No.4＇ has high and stable yield with wide adaptability.It is suitable to be planted in Jiangsu Province and other areas with similar ecological conditions in spring as vegetable soybean.