抽穗开花期耐高温的爪哇稻资源筛选  

Screening of Javanica Rice for Thermo-tolerance at Heading Stage

作　　者：赵森[1,2] 于江辉[1] 周浩[1] 孟秋成[1] 肖国樱[1] 

机构地区：[1]中国科学院亚热带农业生态研究所/亚热带农业生态过程重点实验室,长沙410125 [2]中国科学院研究生院,北京100049

出　　处：《植物遗传资源学报》2013年第3期384-389,共6页Journal of Plant Genetic Resources

基　　金：中国科学院知识创新工程重要方向项目(KSCX2-EW-N-01)

摘　　要：通过人工气候室鉴定和分期播种试验,对来自于不同国家和地区的95份爪哇稻进行抽穗开花期耐高温特性评价。以综合结实率为指标,通过聚类分析将95份爪哇稻分为耐热能力不同的3类。综合考虑大田分期播种的结实率和人工气候室鉴定结果,筛选出耐高温品种IRAT109(IRRI编号38563)、260(IRRI编号14888)和L 4-34(IRRI编号13403),可用于水稻耐高温新品种的选育及耐热性遗传机制研究。Thermo-tolerance of 95 accessions of javanica rice,which originated from different countries and regions, were tested through artificial climate chamber appraisal and different seeding time trials at heading stage. According to the comprehensive seed set, the 95 accessions were classified into 3 groups with different thermo-tolerance based on clustering analysis. Overall consideration of comprehensive seed set at different seeding time and artificial climate chamber appraisal result, the variety of IRAT109 （ IRRI accession number 38563 ）, 260 （ IRRI accession number 14888）,and L 4-34 （IRRI accession number 13403）were of thermo-tolerance varieties, which could be used for breeding new thermo-tolerance rice and further genetic mechanism research of high temperature stress.

关 键 词：爪哇稻 抽穗开花期 耐高温 综合结实率 

分 类 号：S511[农业科学—作物学]