早熟秋甘蓝新品种达光的选育

达光是以自交不亲和系98-19 为母本，以自交系99-36 为父本配制而成的早熟秋甘蓝一代杂种。早熟，定植至收获72 d（天）左右；植株生长势强，株型平铺，开展度49～52 cm，外叶12～14 片，叶色灰绿，叶面蜡粉多；叶球扁圆形、色绿，紧实度0.62，球高11.3 cm，横径19.8 cm，中心柱长5.9 cm，单球质量1.5 kg，质地脆嫩，味微甜，耐裂球；抗芜菁花叶病毒病（TuMV）和黑腐病；一般每667 m² 产量4 500 kg 左右，适宜华北、华中及西南地区秋季露地种植。

A New Autumn Cabbage F1 Hybrid—‘DaGuang’

‘Daguang’ is a new autumn cabbage F1 hybrid developed by crossing self-incompatible line 98-19 as female parent and self-compatible line 99-36 as male parent．It is an early-maturing variety．It takes about 72 days from field planting to harvest．The plant grows vigorously．Its expansion degree is 49-52 cm．It has 12-14 outer leave blades，and the leaf is greyish green in color．There is a lot of wax powder on the leaf surface．The leafy head is oblate，green and compact．The compactness degree is 0.62.The leafy head is 19.8 cm in transverse diameter，11.3 cm in height．The central core is 5.9 cm in length．The single leafy head weights 1.5 kg．It has crisp texture and slightly sweet taste．It is tolerant to head splitting，and resistant
to TuMV（Turnip mosaic virus）and black rot．Its average yield is about 67.5 t·hm^-2．It is suitable to be cultivated in autumn open fields at north，central，and southwest part of China．