始穗期喷施植物激素对旱稻部分生理特性及产量的影响  

Effects of Plant Hormones by Heading Stage Spray on Partial Physiological Characteristics and Yield of Upland Rice

作　　者：段素梅 吴文革[2] 陈刚[2] 杨安中 DUAN Sumei;WU Wenge;CHEN Gang;YANG Anzhong(College of Agronomy,Anhui Science and Technology University,Fengyang 233100,China;Rice Research Institute,Anhui Academy of Agricultural Sciences,Hefei 230031,China)

机构地区：[1]安徽科技学院农学院,安徽凤阳233100 [2]安徽省农业科学院水稻研究所,安徽合肥230031

出　　处：《安徽科技学院学报》2018年第3期32-35,共4页Journal of Anhui Science and Technology University

基　　金：国家科技支撑计划项目(2011BAD16B06);国家公益性行业(农业)科研专项(201309102);安徽科技学院稳定人才项目(2016DSM);安徽科技学院自然科学基金项目(ZRC2014424)

摘　　要：目的:研究始穗期喷施芸苔素内酯(BR)、吲哚乙酸(IAA)、6-苄基腺嘌呤(6-BA)、赤霉酸(GA3)对国审稻"绿旱1号"生长后期部分生理特性及产量的影响。方法:采用大田随机区组设计,在始穗期喷施6-BA IAA、GA3、BR四种植物激素,以清水为对照。结果:于始穗期喷施BR、IAA、6-BA、GA3四种激素均能提高旱稻后期叶片中叶绿素含量、有效叶面积指数及光合速率,促进灌浆结实,穗实粒数及粒重显著提高,较对照分别增产8.84%、10.26%、14.62%和7.42%,其中BR、GA3处理较对照增产达显著水平,IAA、6-BA处理较对照增产达极显著水平。结论:始穗期喷施BR、IAA、6-BA、GA3四种激素能改善旱稻生长后期光合性能,提高产量。Objective：To study the effects of Brassinolide（BR）,indoloacetic acid（IAA）,6-benzyladenine（6-BA）and gibberellic acid（GA3）on the physiological characteristics and yield of ＂green drought1＂ at the beginning stage of panicle.Methods：Four kinds of plant hormones were sprayed with 6-BA,IAA,GA3 and BR at the beginning stage of panicle by random plot design.contrast with clear water.Results：The chlorophyll content,effective LAI and photosynthetic rate were increased effectively,the grain filling and seed setting were promoted,the number of grains per panicle and grain weight increased significantly,the yield increased 8.84%,10.26%,14.62%,7.42%,respectively.Among them,theyield of BR,GA3 treatment was increased significantly,and the increasing yield of IAA and 6-BA treatment were significant.Conclusion：It is indicated that spraying 6-BA,IAA,GA3,BR by heading stage improved the photosynthetic properties of upland rice,and increase the yield.

关 键 词：植物激素 旱稻 生理特性 产量 

分 类 号：S511[农业科学—作物学]