安徽农业科学2018，Vol.46Issue(6)：29-32,4.
不同耐淹基因型水稻分蘖期对淹涝胁迫的生理差异
Physiological Differences of Different Varieties of Waterlogging-tolerant Rice (Oryza sativa L.) to Submergence during Tillering Period
摘要
Abstract
[Objective] To research the physiological differences of different varieties of waterlogging-tolerant rice (Oryza sativa L.) to submergence during tillering period.[Method] Four different varieties of waterlogging-tolerant rice (FR13A,9311,IR64,OM052) were used as the experimental materials,submergence treatments for 2,4,5,7 d and a subsequent recovery for 3 and 5 d were conducted.Effects of different degrees of submergence on the growth and physiological indexes of rice during tillering period were investigated.[Result] The content of chlorophyll and shoot relative water content were decreased;root-shoot ratio increased;the root length decreased gradually,the activities of superoxide dismutase (SOD),peroxidase (POD),catalase (CAT) activity,as well as malondialdehyde (MDA) content,were induced and increased subsequently.Compared with the control,the activities of superoxide dismutase (SOD),peroxidase (POD) and catalase (CAT),as well as malondialdehyde (MDA) content,of OM052 rised by 50.0％ and 25.8％ and 50.5％ and 17.9％ on the 4th day of treatment,respectively.Mter submergence for 5 d,only OM052 and FR13A survived,which were tolerant varieties.[Conclusion] 5 d might be the turning point for evaluating submergence tolerance at tillering stage,and 0M052 had relatively good waterlogging tolerance in certain degree.关键词
水稻/淹涝胁迫/生理差异/抗氧化酶活性/丙二醛Key words
Rice/Submergence stress/Physiological differences/Antioxidant enzyme activity/Malnodialdehyde分类
农业科技引用本文复制引用
从夕汉,施伏芝,阮新民,罗玉祥,王元垒,罗志祥..不同耐淹基因型水稻分蘖期对淹涝胁迫的生理差异[J].安徽农业科学,2018,46(6):29-32,4.基金项目
安徽省自然科学基金(1608085QC67) （1608085QC67）
国家重点研发计划课题(2017YFD0100304,2017YFD0301304) （2017YFD0100304,2017YFD0301304）
安徽省科技攻关计划项目(1604a0702008) （1604a0702008）
安徽省国际科技合作计划(1704e1002232) （1704e1002232）
安徽省农业科学院种子工程项目(17D0101). （17D0101）
