中晚熟大白菜新品种天白80的选育

A New Chinese Cabbage F_1 Hybrid —‘ Tianbai 80'

天白80是以雄性不育系C441和自交不亲和系T01配制而成的中晚熟直筒型大白菜一代杂种,生长期75d(天)左右,株型直立,株高51cm,开展度58.5cm,外叶浅绿色,叶面少茸毛,中肋白色;叶球长筒形,顶部舒心,球色浅绿,结球紧实,内叶浅黄色,球高46.4cm,球径11.2cm,球形指数4.1;叶球质量2.8kg左右,净菜率75.4%。抗病性强,高抗病毒病和霜霉病,抗黑腐病。平均每667m2产量7200kg左右,适宜我国华北及西北地区作为中晚熟秋大白菜种植。

‘ Tianbai 80’ is a new Chinese cabbage F1 hybrid of mid-late maturity,developed by crossingmale sterile line‘ C441’ with self-incompatible line‘ T01’.Its growth period is about 75 days.The plant is erectand 51 cm in height,58.5 cm in width.Its outleaf is light green in color with less fuzz and white keel.The headis of long tube shape and compact in size.It is light green in color.The inside leaf is light yellow in color.Itshead is 46.4 cm in height,11.2 cm in diameter.The head shape index is 4.1.The average single head weightis about 2.8 kg.It is highly resistant to virus disease and downy mildew,and resistant to black rot.Its averageyield is about 108 t·hm-2.It is suitable to be planted in north and north-west China as mid-late autumn Chinesecabbage.