摘要
通过有性杂交技术将青菜抗病基因重组到塌菜地方种质资源,经连续6代回交,结合抗病性鉴定和加代技术,选育出优良的小八叶塌菜新品系95-5,进一步培育获得塌菜新品种"冬宝小八叶"。该品种叶墨绿色、近圆形,叶面皱缩、有光泽,叶柄绿色,叶片紧密排列,株型较原商品种优美,商品性好;单株重150～200 g,耐寒、抗病,品质优良。
The new variety ＂dongbaoxiaobaye＂of Ta- tsai （Brassica campestris L ssp. chinesis Makino var. rosularis Tsen et Lee） was bred by backcrossing for six generations after hybridizing the bak choy with the gene of disease resistant. The technique of identifing disease resistance were taken in the every genernation of backcrossing, and the treatment of the lower temperature were also taken in order to add the generation in a year. The variety, ＂Dongbaoxiaobaye＂, has dark green leaf, arranged tightly, with near round and curly, green petiole, and the weight of 150-200 g after growing for about 45 days. It also has the resistance of the disease and the cold. And its plant shape is better than the old variety.
出处
《上海交通大学学报（农业科学版）》
2008年第2期157-160,共4页
Journal of Shanghai Jiaotong University(Agricultural Science)
基金
上海市重点科技攻关项目(023112030)
关键词
塌菜
“冬宝小八叶”
有性杂交
回交
Ta-tsai
＂Dongbaoxiaobaye＂
sexual hybridization
backcross
