优质抗病中晚熟大白菜新品种‘多抗 4 号’

 ‘多抗4 号’（F1）大白菜是利用自交不亲和系‘2005M-3’和自交系‘04-5’为亲本杂交，育成的中晚熟抗病新品种。生长势强，结球速度快；植株外叶少，净菜率高；叶球中桩叠抱，上下等粗，商品性状好；高抗病毒病，抗霜霉病和黑腐病，田间综合抗病性好。

A New Chinese Cabbage Cultivar‘Duokang 4’

‘Duokang 4’is a new medium or late maturing hybrid Chinese cabbage variety with high diseases resistance,which crossed between self-incompatibles variety‘2005M-3’and autogamy variety ‘04-5’. Its growth potential is strong. The head growth fast.‘Duokang 4’has outstanding features,such as much less useless leaves,high net rate,high resistance to virue disease,mildew and black rot disease. It has good performance on the comprehensive disease resistance.