脱落酸和烯效唑对菜心抽薹特性和生长的影响  

Effects of ABA and uniconazole on bolting characteristic and growth of flowering Chinese cabbage

作　　者：康云艳[1] 黄爱政[1,2] 杨暹[1] 刘晓静[1] 

机构地区：[1]华南农业大学园艺学院,广东广州510642 [2]江门市农业科学研究所,广东江门529060

出　　处：《广东农业科学》2010年第12期49-51,共3页Guangdong Agricultural Sciences

基　　金：国家科技支撑计划项目(2007BAD89B14);广东省科技攻关项目(2006A2030600);广东省农业科技技术专项(粤农函[2009]1124号);华南农业大学校长科学基金

摘　　要：针对菜心未熟抽薹现象,以早熟品种油青四九为材料,研究不同浓度脱落酸和烯效唑,分别在2～3叶期、4～5叶期、6～8叶期3个时期,单一和混合施用对菜心现蕾期、植株生长和产量的影响。结果表明,在2～3叶期和4～5叶期,脱落酸和烯效唑混合处理既可推迟菜薹现蕾期,也可提高菜薹产量,以2～3叶期脱落酸20 mg/L+烯效唑300 mg/L处理菜薹产量最高。在6～8叶期,脱落酸和烯效唑处理虽可在一定程度上推迟菜薹现蕾期,但降低了菜薹的产量。The objectives of the present study were to investigate the effects of ABA and uniconazole on bolting characteristic and yield of flowering Chinese cabbage.Flowering Chinese cabbage（Brassica campestris L.ssp.chinensis var.utilis Tsen et Lee cv Youqing 49） were sprayed with different concentrations of ABA and uniconazole at 2～3,4～5,and 6～8 leaf stages,respectively.The results showed that at 2～3 and 4～5 leaf stages,rationally combined treatment of ABA and uniconazole could control the bolting of plants and improve the yield.However,at 6～8 leaf stage,although exogenous application of ABA and uniconazole could control the bolting,the treatments had bad effect on the yield.Within all treatments,the treatment ABA 20 mg/L＋ uniconazole 300 mg/L at 2～3 leaf stage resulted in highest yield.

关 键 词：菜心 抽薹 脱落酸 烯效唑 

分 类 号：S634.5[农业科学—蔬菜学]