干旱地区农业研究2016，Vol.34Issue(5)：9-14,53,7.DOI:10.7606/j.issn.1000-7601.2016.05.02
新培育玉米自交系苗期生理生化指标与其抗旱性综合评价
Comprehensive evaluation of physiological and biochemical indexes and drought resistance of new maize inbred lines during seedling stage
摘要
Abstract
Seventy-three new maize inbred lines cultivated by our research group and seven known lines were culti -vated under simulated drought-stress condition in greenhouse to investigate the relationships between drought tolerance re -lated physiological and resistance and drought .Through testing and analyzing their WLR and RWC ,15 inbred lines were selected .Five physiological and biochemical indexes of these inbred lines were examined including proline content ,mal-ondialdehyde (MDA) content ,SOD activity ,CAT activity ,and POD activity .Based on the classification of five physio-logical and biochemical indexes ,drought tolerance of the inbred lines was evaluated .The results indicated that WLR , proline content ,MDA content ,SOD activity ,CAT activity and POD activity were increased ,but relative water content became decreased .The comprehensive evaluation on drought tolerance of these lines classified them into high drought tol -erance (four lines) ,drought tolerance (three lines) ,medium drought tolerance (two lines) ,drought susceptibleness (three lines) ,and high drought susceptibleness (three lines) .关键词
玉米/自交系/抗旱性/指标Key words
maize/inbred line/drought tolerance/index分类
农业科技引用本文复制引用
孙欢欢,韩兆雪,谭登峰,张小燕..新培育玉米自交系苗期生理生化指标与其抗旱性综合评价[J].干旱地区农业研究,2016,34(5):9-14,53,7.基金项目
国家自然科学基金（31201268）；陕西省自然科学基金（2011JQ3005）；中央高校基本科研业务费专项资金 （）
