小株型大白菜新品种京春娃娃菜的选育

A New Mini Chinese Cabbage F_1 Hybrid—‘Jingchunwawacai’

京春娃娃菜是由两个自交不亲和系9410和0037配制而成的小株型大白菜一代杂种。极早熟,定植后45～50d(天)收获,株型较小,较直立,适于密植,每667m2可种植10000株以上。耐先期抽薹性强。外叶绿色,叶柄白色,球内叶浅黄色,叶球筒形,球高21.5cm,横径12.0cm,单球质量0.8kg,净菜率66.5%,每667m2净菜产量7000～8000kg。抗TuMV和黑腐病,高抗霜霉病,品质佳。已在北京、天津、河北、河南、甘肃、云南、贵州等地推广种植。

‘Jingchunwawacai＇ is a new mini Chinese cabbage F1 hybrid bred by crossing self-incompatible line 9410 with 0037. It takes about 45 -50 days from transplanting to harvest. It has smaller plant size which fits to transplant in high density. It is tolerant to bolting, and resistant to TuMV, black rot, and high resistant to downy mildew. Its head shape is ovate with 21.5cm of head height and 12.0 cm of head diameter. Its inner leaves are light yellow in color. Its average head weight is about 0. 8 kg. Its net head rate is 66.5 %. The yield in open field is 105 - 120 t·hm^-2. It has been extended to Beijin, Tianjin, Hebei, Henan, Gansu, Yunnan and Guizhou.