江淮地区水稻耐热性鉴定技术研究  

Study on Identification Technology of Rice Heat Tolerance in Jianghuai Region

作　　者：张德文[1] 汪婉琳[1] 张伟[1] ZHANG De-wen;WANG Wan-lin;ZHANG Wei(Rice Research Institute,Anhui Academy of Agricultural Sciences,Hefei,Anhui 230031)

机构地区：[1]安徽省农业科学院水稻研究所,安徽合肥230031

出　　处：《安徽农业科学》2020年第12期20-22,共3页Journal of Anhui Agricultural Sciences

基　　金：安徽省重点研究和开发计划面上项目“优质香软米水稻种质创制及新品种选育”(201904a06020019);安徽省重点研究和开发计划国际科技合作项目“适宜孟加拉品质抗性需求的杂交水稻新品种选育及推广”(201904b11020029)。

摘　　要：以51个水稻品种为试验材料,采用田间自然高温、温室高温胁迫2种试验方法对2018和2019年安徽省中籼生产试验的耐热性进行了鉴定。结果显示,两年均以智能玻璃温室胁迫处理鉴定的结果为最后的耐热性鉴定结果,2018年的30个供试材料中,仅有1份材料的抗性级别达1级,耐热性强,占参试品种的3.33%;有3份材料的抗性级别达到3级,耐热性较强,占参试品种的10.00%;有24份材料的抗性级别为5级,耐热性一般,占参试品种的80.00%;仅有2份材料的抗性级别为7级,耐热性较弱,占参试品种的6.67%。2019年的18个供试材料中,也是仅有1份材料的抗性级别达1级,耐热性强;3个品种综合抗性级别达到3级,耐热性较强;10个品种综合抗性级别为5级,耐热性一般;3个品种综合抗性级别为7级,耐热性较弱;仅1个材料综合抗性级别为9级,耐热性弱。With 51 rice varieties as the test materials,Indica production trial in 2018 and 2019 was carried out to determine the heat resistance under natural high temperature in the field and greenhouse high temperature stress.Results showed that in two years of 2018 and 2019,the results of stress treatment and identification in intelligent glass greenhouse were the final results of heat resistance identification.In 2018,only one of the 30 tested materials had a resistance level of 1,with strong heat resistance,accounting for 3.33%of the tested varieties;3 materials had a resistance level of 3,with strong heat resistance,accounting for 10.00%of the tested varieties;and 24 materials had a resistance level of 5,accounting for 80.00%of the tested varieties;the resistance level of only 2 materials was 7,and the heat resistance was weak,accounting for 6.67%of the tested varieties.Among the 18 materials tested in 2019,only 1 of them had a resistance level of 1 with strong heat resistance;3 varieties had a comprehensive resistance level of 3 with strong heat resistance;10 varieties had a comprehensive resistance level of 5 with general heat resistance;3 varieties had a comprehensive resistance level of 7 with weak heat resistance;only 1 material had a comprehensive resistance level of 9 with weak heat resistance.

关 键 词：水稻 耐热性 鉴定技术 温室高温胁迫 田间自然高温 

分 类 号：S511[农业科学—作物学]