早熟大白菜新品种天白65的选育

Breeding of A New Chinese Cabbage Cultivar,Tianbai 65

天白65是以自交不亲和系Q667与自交不亲和系T01杂交而成的早熟直筒黄心型结球白菜一代杂交种,生育期65 d左右;株型紧凑直立,株高50.2 cm,株展55.4 cm;外叶深绿色,叶面呈核桃纹状、少茸毛,叶帮白色;叶球直筒形,顶部舒心,叶球浅绿色,结球紧实,心叶浅黄色,球高44.8 cm,球径15.5 cm,单球质量2.3 kg左右;抗病性强,抗霜霉病、软腐病和病毒病;平均每667 m^2产量6 500 kg左右,适宜北方地区作为中早熟秋大白菜种植。

Tianbai 65 is the F1 hybrid of a new early-maturing Chinese cabbage breeding by self-incompatible line Q667 and T01 with long cylinder-shaped leaf head and yellow central leaves. Its growth period is about 65 days with compactand vertical plant. The plant is 50.2 cm in height, 55.4 cm in width with bottle green outer leaves. The surface of leaves shows walnut striate shape with a little fuzz and white petiole. Its leaf head is 44.8 cm in height, 15.5 cm in diameter. Its average head weight is 2.3 kg. Tianbai 65 has strong resistance to virus, downy mildew and soft rot. Its average yield is about 6 500 kg/667 m^2. It is suitable for planting in Northern area as the middle and early-maturing autumn Chinese cabbage cultivar.