春大白菜品种选育的形态与生理指标  

Studies on Index of Morphology and Physiology for Spring Chinese Cabbage

作　　者：程斐[1,2] 张蜀宁[1,2] 孙朝晖 李式军[1,2] 陈广福 

机构地区：[1]南京农业大学园艺系 [2]江苏省农业科学院蔬菜研究所

出　　处：《园艺学报》1999年第2期120-122,共3页Acta Horticulturae Sinica

基　　金：国家自然科学基金;山东省教委资助项目

摘　　要：大白菜抽薹期早晚与花芽分化临界期显著相关，可以用花芽分化临界期替代抽薹期早晚，在生育早期进行晚抽薹性状选择。花芽分化临界期前后生长点的ＣＴＫ（细胞分裂素）、多胺都出现一个高峰，ＣＴＫ高峰出现比多胺早２～４ｄ；结球性良好的晚抽薹品种比结球性差的早抽薹品种ＣＴＫ和多胺含量低。Heading character of Chinese cabbage planted in spring is related with bolting date,leaf differentiation speed(LDS)and foliage;A good spring cultivar with tight head should have late bolting date,much foliage and appropriate leaf differentiation speed.Coefficient of correlation between bolting date and flower bud differentiation critical date(FBDCD)reached significance level,FBDCD could replace bolting date,as an index of early growing stage for the selection of Lateboltign materials.CTK,Spm,Spd and Put in bud all reached a high level before and after FBDCD.Early bolting cultivars keep a higher level than late ones.

关 键 词：春大白菜 结球性 形态指标 大白菜 品种 选育 

分 类 号：S634.103[农业科学—蔬菜学]