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.
Abstract
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.
国家科技期刊平台
NSTL
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