河南农业科学2016，Vol.45Issue(10)：10-14,5.
化学打顶对芝麻产量和品质的影响
Preliminary Effect of Chemical Detopping on Yield and Quality of Sesame( Sesamum indicum L. )
摘要
Abstract
To seek the suitable plant hormone for artificial topping,artificial and chemical topping were conducted,and the effects 5 plant hormones on sesame yield and seed quality were analyzed at 60 d after planting. The results showed that artificial topping increased sesame yield by 5. 65% compared with the treatment without detopping. Paclobutrazol( PP333 ) had little effect on sesame yield,therefore it couldn' t replace artificial detopping. After the spraying of triiodobenzoic acid( TIBA) ,chlormequat chloride( CCC) or daminozide(B9),the blighted seed rate(BSR) significantly decreased,seeds per capsule(SPC),seeds weight per capsule ( SWPC ) and ratio of seed weight to shell weight per capsule ( RSS ) significantly increased,which could promote the improvement of the yield;in addition, the plant top length ( PTL ) significantly decreased under the treatment of TIBA and B9 . Both artificial and chemical detopping had no significant effect on crude protein,crude fat and fatty acid composition in sesame oil. Artificial detopping and TIBA significantly decreased sesamin content,CCC had no significant effect on sesamin and sesamolin content,while 6-BA increased sesamolin content,and B9 increased the contents of sesamin and sesamolin by 14. 29%, 17. 38% respectively. In a word, B9 could significantly increased both sesame yield (12. 72% higher than the treatment without detopping) and quality. Therefore,B9 was the most suitable plant hormone for chemical detopping.关键词
芝麻/植物生长调节剂/化学打顶/产量/品质Key words
sesame( Sesamum indicum L. )/plant hormone/chemical topping/yield/quality分类
农业科技引用本文复制引用
吕丰娟,肖运萍,魏林根,汪瑞清,袁展汽,林洪鑫..化学打顶对芝麻产量和品质的影响[J].河南农业科学,2016,45(10):10-14,5.基金项目
国家现代农业产业技术体系建设项目(CARS-15) （CARS-15）
江西省农业科学院创新基金博士启动项目(2013CBS004) （2013CBS004）
