春化时间对不结球白菜现蕾、抽薹和开花的影响  

Effects of vernalization time on budding,bolting and flowering of pakchoi

作　　者：王真真[1] 侯瑞贤[1] 李晓峰[1] 朱红芳[1] 朱玉英[1] 

机构地区：[1]上海市农业科学院园艺研究所,上海市设施园艺技术重点实验室,上海201403

出　　处：《上海农业学报》2013年第5期50-53,共4页Acta Agriculturae Shanghai

基　　金：上海市绿叶蔬菜产业体系项目;上海市科技攻关项目(09391911400)资助

摘　　要：以抽薹性不同的不结球白菜为试材,研究了在光期10℃/10 h、暗期4℃/14 h低温下,0、20、25、30、35、40、45 d的春化处理对其现蕾、抽薹和开花时间以及植株生长状况的影响。结果表明:春化处理的时间越长,植株从春化结束到现蕾、抽薹、开花的时间越短,且不同处理间差异较大。早抽薹材料09-1-328c春化20 d,90%以上植株均可抽薹开花,但是所需时间较长,春化30 d较合适;中等耐抽薹材料08-1P-76春化30 d,81.8%的植株可抽薹,春化35 d,全部植株均可抽薹开花;晚抽薹材料08-1P-89春化35 d,只有44.8%的植株抽薹,春化40 d可全部抽薹。Three inbred lines of pakchoi with different bolting traits were used as test materials, and their budding, bolting, flowering and plant growth were observed after vernalized in 10 ℃/10 h light period and 4 ℃/14 h night period for 0,20,25,30,35,40 and 45 d respectively. The results showed that the longer the vernalization time was, the shorter the duration from the vernalization end to bud- ding, bolting or flowering, and the differences among different treatments were large. When the ver- nalization time was 20 d,90% of the line 09-1-328c with early bolting could bolt and flower though the needed time was longer, and a 30 d vernalization was appropriate. When the line 08-1P-76 with moder- ate resistance to bolting was vernalized for 30 d,81.8% of the plants could bolt,and when the vernali- zation time was 35 d,all the plants could bolt and flower. When the line 08-1P-89 with late bolting was vernalized for 35 d, only 44.8% of the plants could bolt, and 40 d vernalization could make all the plants bolt.

关 键 词：白菜 春化处理 现蕾 抽薹 开花 

分 类 号：S634.3[农业科学—蔬菜学] S601[农业科学—园艺学]