凉山州高原粳稻开花习性研究  

Study on Flowering Characteristics of Japonica Rice in Liangshanon Dixtrict

作　　者：戴红燕[1] 华劲松[1] 蔡光泽[1] 郑传刚[1] 

机构地区：[1]西昌学院作物研究所,四川西昌615013

出　　处：《种子》2006年第6期14-17,20,共5页Seed

基　　金：四川省科技厅"十五"攻关项目"攀西地区增粮增收可持续发展关键技术研究和示范"

摘　　要：凉山州高原粳稻在自然环境中抽穗后3～4d开始开花，5～8d进入开花盛期，10～12d相继结束；1日内的开花时间主要集中在12：00～16：00；每朵颍花开花历时60～110min不等；闭花授粉粒和停止发育粒教因品种而异；水稻开花与颖壳内湿度、田间温度和生态区关系密切。Study reveals that Japonica rice growing on plateau blooms three or tours day after heading; It reaches the peak period of blossom after five to eight days and the blossom period ends after ten to twelve days. The blossom time in a day is mainly during 12：00 p. m and 16：00 p.m. Pollination in closed blossoms and non-growing grains differ from variety to variety. Rice blooming is closely related to the humidity in caryopsis, field temperature and ecological region.

关 键 词：高原粳稻 开花习性 研究 开花时间 田间温度 

分 类 号：S511[农业科学—作物学]