水陆稻杂交组合叶片相对含水量的遗传研究  

Genetic Analysis of Leaf Relative Water Content in Paddy-Upland Hyb rid Rice

作　　者：吴明国[1] 林建荣[1] 张光恒[1] 

机构地区：[1]中国水稻研究所水稻生物学国家重点实验室,浙江杭州310006

出　　处：《中国水稻科学》2004年第6期570-572,共3页Chinese Journal of Rice Science

基　　金：浙江省自然科学基金资助项目 (3 0 12 5 2 );浙江省重大科技计划资助项目 (0 1110 2 471)

摘　　要：以 3个水陆稻组合 (旱稻 2 77/春江 0 16、巴西陆稻 /春江 0 16、旱稻 5 0 2 /郑稻 6号 )的亲本、F1 、B1 、B2 和F2 为试验材料 ,在人工控制条件下经干旱协迫处理 ,研究叶片相对含水量的遗传规律。叶片相对含水量表现为数量性状遗传特征 ,主要受加性效应控制 ,同时还受到显性效应的影响 ,其广义遗传率和狭义遗传率均较高。还对栽培稻品种的抗旱性改良方法以及陆稻种质资源在水。Three upland rice varieties (Handao 277, Brazil u pl and rice, Handao 502) and two lowland rice varieties (Chunjiang 016, Zhengdao 6 ) were crossed to study the inheritance of leaf relative water content under water stress. The relative water content of rice was quantitative traits an d controlled by polygene, the broad-sense heritability and narrow-sense herit ability of leaf relative water content were both high. The leaf relative water content of rice was mainly controlled by additive genetic effects, and also influenced by dominant genetic effects. The improved methods for drought toler ance of rice and the utilization of upland rice germplasm in the paddy-upland hybrid rice were also discussed.

关 键 词：水稻 陆稻 杂交组合 叶片 相对含水量 遗传分析 

分 类 号：S511[农业科学—作物学]