彩色大白菜新品种“金冠2号”的选育

在1996年育成彩色大白菜材料的基础上,应用优良自交系92S24等采用杂交、自交,育成了系列彩色大白菜自交系,2002年从20多个杂交组合中筛选“金冠2号”新品种(01S1024×01S915)。该品种叶球叠抱,高头球形,株高41 cm,株幅65 cm;球形指数1.4;外叶绿色,球叶外层2~3片叶为绿色,内层叶色为橙色,在阳光下叶色稍变红;单球净重2.5~3.0 kg,净菜率为75%以上,结球紧实,营养丰富,商品性好;球叶类胡萝卜素含量为优质普通大白菜秦白二号的3.47倍,vC、可溶性糖、粗蛋白分别提高44%、36%和18%,干物质提高11.73%,粗纤维减少26.0%。一般净菜产量为90.0 t/hm2左右,高抗病毒病、霜霉病、干烧心、软腐病和黑斑病,生育期75~80 d。2004年通过陕西省新品种鉴定。

Breeding of a New Hybrid F1 of Orange-heading Chinese Cabbage-'Jinguan No.2'

Jinguan No.2 is a new F₁ hybrid of orange heading Chinese cabbage suitable for autumn,combined by self-incompatible lines 01S₁₀₂₄ and 01S₉₁₅ with green leaf,low of leaf margin undulation,mid-maturity,vigorous plant.Its leaf head is obovate,orange color.The average net weight per leafhead is 2.5-3.0 kg,with hard head,high nutrient,and attractive appearance.The content of carotenoid in head is 3.47 times as Qinbai No.2,a normal Chinese cabbage,and vC,soluble sugar,crude protein,dry material is 44%,36%,18% and 11.73% higher than it respectively,and cellulose is 26.0% lower than it.The ratio of net vegetable is over 75%.It is resistance to virus,downy mildew,tipburn and soft-rot.It can be harvested in 75-80 days after sowing and yielded net vegetable 90.0 t·hm^-2,It has been approved by Shaanxi Province Crop Approving Committee in 2004.