极早熟春甘蓝幕田9号的选育

A New Spring Cabbage F_1 Hybrid—‘Mutian No.9’

幕田9号是以TWJ113A为母本,BJU01A为父本配制而成的极早熟春甘蓝一代杂种。从定植到采收42～45d(天),外叶绿色,叶表面平滑光亮,叶球近圆形,结球紧实,中心柱长小于球高的1/2,脆甜,VC含量509mg·kg-1,干物质6.28%,总糖4.03%,粗蛋白1.03%,粗纤维0.50%。田间调查及室内苗期人工接种抗病性鉴定表明抗TuMV。一般每667m2产量3500～4000kg,适于在京郊及华北地区推广。

‘Mutian No.9’is a new spring cabbage F1 hybrid developed by combining TWJ113A line with BJU01A line. It is a very early-matured cultivar. It takes 42-45 days from transplantation to harvest. Its outer leaves are green and bright and its leaf head is round and compact. Its dwarf stem in head is less than the half of the height of the leaf head. It tastes sweet and fragile, and the content of VC, ash, total sugar, crude protein, crude giber is 509 mg·kg^-1, 6.28 %, 4.03 %, 1.03 %, 0.50 %, respectively. Its yield is generally around 52.5-60.0 t·hm^-2. It is suitable to grow in the outskirts of Beijing and Northern China.