优质水稻低温控制对减数分裂期冷害评价及相关逆境生理指标的影响  

Effects of Low Temperature Control on Chilling Injury Evaluation and Related Physiological Indexes During Meiosis of High Quality Rice

作　　者：柳洪良[1] 韩云哲[1] 徐伟豪 朴雪梅[1] 白学峰[1] 程正海[1] 金峰[2] 王亮[1] Liu Hongliang;Han Yunzhe;Xu Weihao;Piao Xuemei;Bai Xuefeng;Cheng Zhenghai;Jin Feng;Wang Liang(Yanbian Academy of Agricultural Sciences,Yanbain,Jilin 133400;Jilin Agricultural University,Changchun,Jilin 130000)

机构地区：[1]延边朝鲜族自治州农业科学院,吉林延边133400 [2]吉林农业大学,吉林长春130000

出　　处：《粮食科技与经济》2020年第9期72-75,共4页Food Science And Technology And Economy

基　　金：国家粮食丰产增效重点研发计划项目“黑土稻区抗逆丰产增效关键技术研究与模式构建子课题”(2017YFD0300609-4);2018年度吉林省人才开发资金集中资助人才项目。

摘　　要：吉林省东部稻区因地理环境原因经常遭遇低温冷害,使水稻产量大幅降低。为研究不同水稻品种在减数分裂期低温表现,本试验于低温条件下对多个优质水稻品种进行减数分裂期冷害鉴定试验,研究结果表明:耐冷性评价中,吉粳515的耐冷性表现为极强,上育397等14个品种的耐冷性表现为强;对SOD、CAT、POD三种酶活性综合分析,其中上育397、龙稻18等品种的酶活性比对照提高,各品种之间表现出显著差异;在稻米外观和营养品质方面,龙稻18、吉粳809等品种较其他品种差异显著。综合评价后得出,吉粳515、上育397、龙稻18、通系935、通禾66等6个品种的抗冷性比较强,适合在吉林省东部冷凉地区种植。The rice area in the east of Jilin Province often suffers from low temperature injury due to geographical environment,which greatly reduces the rice yield.in order to study the low temperature performance of different rice varieties during meiosis and further select suitable varieties for planting in this area,in this experiment,a number of high quality rice varieties in different regions were identified during meiosis stage under the condition of low temperature.the results showed that in the evaluation of cold tolerance,a number of high quality rice varieties in different regions were identified during meiosis stage.The cold tolerance of Jijing 515 was extremely strong,and 14 varieties,including Shangyu 397,showed strong cold tolerance.Based on the comprehensive analysis of the enzyme activities of SOD,CAT and POD,the enzyme activities of Shangyu 397 and Longdao 18 were higher than those of the control,and there were significant differences among the varieties,and the rice appearance and nutritional quality of Longdao 18,Jijing809,Jijing515 and Tongzi935 were significantly different from those of other varieties.After comprehensive evaluation,it was concluded that Jijing 515,Shangyu 397,Longdao 18,Tonghe 935 and Tonghe 66 had strong cold resistance and were suitable for planting in cold areas in the east of Jilin Province.

关 键 词：水稻 减数分裂期 耐冷性 冷害 

分 类 号：S511[农业科学—作物学]