杂交水稻穗萌发生原因与机制及其调控研究进展  

Research Progress in the Causes,Mechanisms,and Regulation of Pre-Harvest Sprouting in Hybrid Rice

作　　者：郭雨馨 陶湘 张樱 葛灿 陈哲 姚栋萍 GUO Yu-xin;TAO Xiang;ZHANG Ying;GE Can;CHEN Zhe;YAO Dong-ping(College of Plant Science and Technology,Hunan Biological and Electromechanical Polytechnic,Changsha 410127,PRC;Hunan Hybrid Rice Research Center,State Key Laboratory of Hybrid Rice,Changsha 410125,PRC)

机构地区：[1]湖南生物机电职业技术学院植物科技学院,湖南长沙410127 [2]湖南杂交水稻研究中心,杂交水稻全国重点实验室,湖南长沙410125

出　　处：《湖南农业科学》2024年第8期102-106,共5页Hunan Agricultural Sciences

基　　金：湖南省教育厅科学研究项目(22B1001);湖南生物机电职业技术学院校级科研项目(23YXS01)。

摘　　要：穗萌是中国南方水稻生产中的突出问题,由杂交水稻穗萌问题所带来的损失也日益受到重视。从种子的裂颖性、种子休眠性、水解酶类、植物激素、品种遗传特性、种子含水量、外界温度及氧气等方面综述了杂交水稻穗萌的发生原因与机制;并从抗穗萌品种选育、选择合适的播种期、加强田间管理、正确使用“九二○”和穗萌抑制剂、加强制种管理技术等角度总结了穗萌的调控措施。Pre-harvest sprouting is a noticeable problem influencing rice production in southern China,and the losses caused by this problem in hybrid rice have aroused increasing concern.This article summarizes the causes and mechanisms of pre-harvest sprouting in hybrid rice from seed glume cracking,seed dormancy,hydrolytic enzymes,plant hormones,genetic characteristics of cultivars,seed moisture content,external temperature,and oxygen conditions.Furthermore,this article proposes measures such as breeding cultivars resistant to pre-harvest sprouting,sowing on appropriate dates,strengthening field management,applying''920''(gibberellic acid)and pre-harvest sprouting inhibitors,and enhancing seed production management,aiming to provide reference for controlling pre-harvest sprouting in hybrid rice.

关 键 词：穗萌 机制 调控 杂交水稻 

分 类 号：S511[农业科学—作物学]