【摘要】 "辽白21号"为中晚熟大白菜品种,生长期81d左右。亲本‘S7-1’和‘S7-2’为大白菜品种"青帮河头"和"天津青麻叶"分别经多代自交分离选育而成的高代自交不亲和系。该品种生长势强,群体植株整齐度高。外叶深绿,叶柄绿色。叶球为长筒舒心形,株高49.6cm,开展度59.0cm,球高41.2cm,球横径14.6cm,单株叶球重3.5kg,净菜率高达84.6%。经人工接种鉴定抗霜霉病和软腐病,高抗病毒病;每667m2产量8 540.00kg左右。适于辽宁省各地及山东、河北、吉林等省栽培。更多还原

【Abstract】 ‘Liaobai No.21’is a mid-late maturing Chinese cabbage variety.Its growing period is about 81days.Its parents ‘S7-1’comes from‘Qingbanghetou’and‘S7-2’comes from‘Tianjinqingmaye’.They developed by crossing through many generations to inbred self-incompatible lines.This hybrid had vigorous growth and high uniformity of plants group. The outside leaves were dark green and the petiole was light green.Its leaf head was long cylinder-shaped.The‘Liaobai No.21’was 49.6cm in height and 59.0cm in stretch.Its leaf head was 41.2cm in height and 14.6cm in diameter.The single plant weight was about 3.5kg and the net product ratio of 84.6%.The artificial inoculation resistant to downy mildew and soft rot,high resistance to TMV.Its output was about 8 540.00kg/667m2.It was suitable to be cultivated in Liaoning,Shandong,Hebei,and Jilin,etc.更多还原