(1.Horticultural Sub-academy,Heilongjiang Academy of Agricultural Sciences,Harbin,Heilongjiang 150069；2.College of Horticulture,China Agricultural University,Beijing 100091)
‘Longbai No.12’ is a new Chinese cabbage F1 hybrid developed by crossing self-incompatible line ‘Ling 036’（female parent） with self-incompatible line ‘Chun 012’ （male parent）.Its head is columnar shape.The growth period is 65-70 days.It is an early maturing variety,and good nutritional quality.It has good disease resitance,such as viral diseases,downy mildew and soft rot.The average yield is about 96 874.35 kg?hm-2.The variety is suitable for cultivating in Heilongjiang Province.