中晚熟大白菜新品种青研8号的选育

A New Chinese Cabbage F_1 Hybrid—‘Qingyan No.8’

青研8号属中晚熟秋大白菜一代杂种,生长期80d(天)左右,由自交不亲和系小天津绿2001-3-9-1-6-4和省福山-1S-2S-8S-11S小-13小配制而成。球叶合抱,叶球长炮弹形,球顶稍舒心,球高43cm,横径17cm。单球质量4.0kg左右,平均净菜产量7000kg·(667m2)-1,抗病毒病,中抗霜霉病,适宜长江中下游和黄河中下游地区以及吉林、陕西等地栽培。

‘Qingyan No.8’is a mid-late maturing Chinese cabbage F1 hybrid.It takes about 80 days from sowing to harvest.It was developed by crossing self-incompatible line Xiaotianjinlv 2001-3- 9-1-6-4 and Shengfushan-1S-2S-8S-11SXiao -13Xiao.Its head is of long ovate shape with 43 cm in height and 17 cm in diameter.The single head weight is about 4.0 kg.The average net yield is about 105 t?hm-2.It is resistant to virus disease,medium resistant to downy mildew.It is suitable to be cultivated in the middle and lower reaches of the Yellow River and the Yangtze River,and Jilin,Shaanxi Provinces,etc.