适合机械化采收的不结球白菜新品种新夏青9号的选育

Breeding of Xinxiaqing No.9,a New Non-heading Chinese Cabbage Cultivar Suitable for Mechanized Harvesting

新夏青9号是上海市农业科学院选育的适合机械化采收的不结球白菜新组合。该组合植株直立生长,中箕类型,生长势强,叶深绿色、宽椭圆形,叶面光滑,叶柄绿色、较宽、较长,胚轴较长,播种后20 d平均胚轴长度4.5 cm,适合作鸡毛菜机械化采收。平均产量710 kg/667 m^(2)左右,夏季栽培烂菜率低,品种耐热性好,抗霜霉病,具较强的抗逆性,品质优良,适合于设施内周年生产。

Xinxiaqing No.9 is a new non-heading Chinese cabbage hybrid suitable for mechanized harvesting bred by Shanghai Academy of Agricultural Sciences.This hybrid plants grow upright with a medium dustpan type,strong growth potential,dark green and wide elliptical leaves,and smooth leave surfaces.The petioles are green,wide and long.The average hypocotyl length is 4.5 cm 20 days after sowing,which is suitable for mechanized harvesting.The average yield is ahout 710 kg per 667 m^(2).The rate of rotten vegetables is low in summer.This cultivar has excellent quality and high resistance to heat,downy mildew and stresses.It is suitable for annual production in facilities.