关键词: 茎用芥菜, 品种

Abstract: ‘Yongzha 4’is a new tuber mustard cultivar developed by systematic selection from 6 generations of‘Pingyan Zhacai’mutants. It is characterized by erected plant type，strong growth potential，far-surface base，broad-leaf type. The tuberous stem is of round shape，the tuberous stem shape index is 1.1，and the average fresh weight is 420 g. The processing quality is better. It is of early and medium maturity. The full growth period is 170 d. The cold resistance and bolting-tolerance is stronger. The hollow heart percentage is lower with a high production of 57 975 kg ? hm-2. The cultivar was suitable for planted in Zhejiang tuber mustard field.

Key words: tuber mustard, cultivar