Abstract：‘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．
