耐热水稻种质资源的筛选与初步评价  

Screening and preliminary evaluation of rice germplasm tolerant to high temperature

作　　者：李培德[1] 周雷[1] 李珍连[1] 刘凯[1] 徐华山[1] 杨国才[1] 陈志军[1] 闸雯俊[1] 李三和[1] 游艾青[1] LI Pei-de;ZHOU Lei;LI Zhen-lian;LIU Kai;XU Hua-shan;YANG Guo-cai;CHEN Zhi-jun;ZHA Wen-jun;LI San-he;YOU Ai-qing(Hubei Key Laboratory of Food Crop Germplasm and Genetic Improvement/Food Crops Institute,Hubei Academy of Agricultural Sciences,Wuhan 430064,China)

机构地区：[1]粮食作物种质创新与品种改良湖北省重点实验室/湖北省农业科学院粮食作物研究所

出　　处：《湖北农业科学》2019年第24期20-22,26,共4页Hubei Agricultural Sciences

基　　金：科技部“十三五”国家重点研发计划项目（2017YFD0100406）;湖北省重大科技创新计划项目（2016ABA086）

摘　　要：在人工气候室设定极端高温条件下,对来源于不同国家和地区的18份处于扬花灌浆期的水稻种质进行耐热性鉴定,并结合大田自然条件下其主要农艺性状表现,对参试水稻种质进行耐热性筛选及初步评价。结果表明,水稻种质间的耐热性存在明显差异,筛选出农艺性状优良,极端耐热种质3份,分别为zy11、zy18和zy67。Under the condition of extreme high temperature set by artificial climate chamber, the heat tolerance of 18 rice germplasms from different countries and regions between heading-flowering stage and grain filling stage was identified. Combining with the main agronomic characteristics of 18 rice germplasms under natural conditions in the field, the heat tolerance screening and preliminary evaluation of the tested rice germplasms were carried out. The results showed that there were significant differences in heat tolerance among germplasms. Three extremely heat tolerant rice germplasms, zy11, zy18 and zy67 were screened out with good agronomic traits.

关 键 词：耐热性 水稻种质 结实率 高温 

分 类 号：S511[农业科学—作物学]