早熟青麻叶大白菜新品种珍绿60的选育

Breeding of Zhenlv 60, a New Early-maturing Qingmaye Chinese Cabbage

珍绿60是以DH系B265和自交不亲和系Q667配制而成的早熟青麻叶类型大白菜一代杂交种,生育期65 d左右,株型直立,株高47.5 cm,开展度52.5 cm,外叶叶色深绿、叶面多皱、有光泽、无茸毛,中肋浅绿,叶球长筒形,顶部舒心,心叶黄色,球高40.5 cm,球径12.5 cm,单球质量2.4 kg,净菜率74.4%,早熟性强、结球紧实、商品性好,品质优,丰产性强,高抗霜霉病和软腐病,抗病毒病和干烧心病,平均每667 m^2产量5 600 kg。

Zhenlv 60 is a new early-maturing Chinese cabbage Fi hybrid which is developed by crossing DH line B265 with self-incompatible line Q667. Its whole growth period is about 65 days. The plant is 47.5 cm in height, 52.5 cm in width. Its leaf head is 40.5 cm in height, 12.5 cm in diameter, and it is long cylinder-shaped with green outer leaves and yellow central leaves. The average head weight of Zhenlv 60 is 2.4 kg. The plant type is vertical with dark green outer leaves which are wrinkled, shiny and glabrous, and its petiole is light green. Zhenlv 60 has high resistance to downy mildew and soft rot, and is resistant to virus and tipburn. Its average yield is 5 600 kg/667 m^2.