干旱地区农业研究2012，Vol.30Issue(6)：7-16,10.
吉林省主推玉米杂交种及骨干系大田全生育期的耐旱评价
Analysis of drought tolerance in the whole-growth period of maize hybrids and elite inbred lines predominantly planted in field in Jilin Province
摘要
Abstract
The drought tolerance of 31 maize hybrids predominantly planted in Jilin Province was directly analyzed by reduction percentage. At the same time, the appropriate indices for the identification of drought tolerance were screened by the correlation between candidate morphological indices at seedling, florescence and filling stages and reduction percentage of these hybrids. Based on the above indices, drought tolerance among 68 elite inbred lines was indirectly evaluated . The main results were summarized as follows: (1) Among 31 maize hybrids, we screened 6 hybrids with high drought tolerance, 12 hybrids with drought tolerance, 5 hybrids with medium drought tolerance, 7 hybrids with drought susceptible, and 1 hybrid with high drought susceptible; (2) The plant height and stem diameter were the appropriate morphological indices for whole growth period in field; (3) Among 68 maize inbred lines, we screened 6 lines with high drought tolerance, 21 lines with drought tolerance, 28 lines with medium drought tolerance, 7 lines with drought susceptible , 6 lines with high drought susceptible. The results would provide reference for screening germplasms with drought tolerance in Jilin region.关键词
玉米/生育期/干旱胁迫/耐旱性评价/鉴定指标Key words
maize/ growth period/ drought stresse/ drought tolerance evaluation/ identification index分类
农业科技引用本文复制引用
朴明鑫,张春宵,杨书华,李万军,刘文国,李晓辉,杨德光..吉林省主推玉米杂交种及骨干系大田全生育期的耐旱评价[J].干旱地区农业研究,2012,30(6):7-16,10.基金项目
农业部转基因重大专项"通过基础抗性与诱导抗性基因的协同操纵进行抗旱转基因玉米新品种培育"(2009ZX08003-009B)和"十二五"农业部转基因重大专项"转基因玉米小麦大豆环境安全评价技术"(2011ZX08011-003) （2009ZX08003-009B）
