西南杂交水稻抽穗开花期耐热性筛选  

Screening of Heat Resistance at Flowering stage in Hybrid Rice in the Southwest China

作　　者：张林[1] 熊洪[1] 徐富贤[1] 朱永川[1] 郭晓艺[1] 刘茂[1] 

机构地区：[1]四川省农业科学院水稻高粱研究所,四川德阳618000

出　　处：《中国稻米》2014年第3期44-47,共4页China Rice

基　　金：公益性行业(农业)科研专项(201203029);国家水稻产业技术体系;国家粮食科技丰产科技工程(2011BAD16BO5-1)

摘　　要：利用人工气候室,以相对受精率为耐热能力评价指标,对西南地区生产上大面积使用的62个杂交水稻品种进行抽穗开花期耐高温特性鉴定。筛选出相对受精率≥60%的品种9个,并通过聚类分析将62个杂交水稻品种分为耐热能力不同的3类,为水稻生产布局提供科学依据。Based on the relative spikelet fertility rate, 62 hybrid rice combinations were tested through artificial climate chamber appraisal at flowering stage in southwest China. There are 9 hybrid rice combinations be screened in the test,which relative spikelet fertility rate are more than 60%. And the 62 hybrid rice combinations were classified into 3 groups with different heat resistance based on clustering analysis. These results can provide a scientific basis for rice production layout.

关 键 词：水稻 抽穗开花期 耐热性 聚类分析 

分 类 号：S511[农业科学—作物学]