安徽农业科学2017，Vol.45Issue(35)：32-34,38,4.
玉米自交系苗期耐旱性鉴定
Evaluation for Seedling Drought Resistance of Different Maize Inbred Lines
摘要
Abstract
[Objective] To evaluate the seedling drought resistance of different maize inbred lines. [Method] 15% polyethylene glycol was used to simulate drought stress conditions. With 43 backbone inbred lines of corn as the test materials,9 morphological indicators related to the root sys-tem were measured. According to the analysis of the difference of significance,seedling drought resistance of different inbred lines of maize was e-valuated. [Result] With the fresh weight root-top ratio,root fresh weight and root dry weight as the indicators for maize seedling drought resistance identification,the selected materials were divided into different drought grades by using the coefficient of drought resistance. Under the three kinds of appraisal indicators,drought levels of 8 maize inbred lines were fully consistent. Among them,Dan 599 was quite strong drought resistance type and Shan 89 was strong drought resistance type;B97,DF32,A679 and Dan 9046 were moderate drought resistance type,Sue 75 and D20 were quite weak drought resistance type. [ Conclusion] This research provided beneficial guidance and reference for seedling drought-tolerant maize germplasm screening and improvement.关键词
玉米/苗期/耐旱性/水分胁迫/鉴定指标Key words
Maize/Seedling stage/Drought tolerance/Water stress/Estimation indicactors分类
农业科技引用本文复制引用
郭晋杰,陈景堂..玉米自交系苗期耐旱性鉴定[J].安徽农业科学,2017,45(35):32-34,38,4.基金项目
河北省高等学校科学技术研究重点项目 （）
国家重点研发计划(2016YFD0101204 -3) （2016YFD0101204 -3）
河北省现代农业技术体系玉米创新团队项目(HBCT2013020204). （HBCT2013020204）
