干旱地区农业研究Issue(1)：48-53,6.DOI:10.16302/j.cnki.1000-7601.2015.01.008
转基因小麦抗旱性鉴定及相关指标灰色关联度分析
Characterization of drought resistance in transgenic wheat lines and grey correlation analyses of related traits
摘要
Abstract
A total of 11 traits ,including 7 agronomic traits and 4 biochemical traits ,was measured in nine ABP9-transgenic spring wheat lines and their donor parent Ningchun 4 that were grown in rain-fed (drought stress ) and well-wa-tered environments .Drought resistance capabilities of these materials were evaluated comprehensively by employing the methods of subordinate function and drought-resistance measure value ( D value ) . Correlation degrees between these traits and drought resistance indexes were analyzed and evaluated using grey relational grade analysis method .The results showed that the drought resistance of the 6 transgenic wheat lines was better than that of their donor parent Ningchun 4 . In particular ,3 lines even exhibited stronger drought resistance than a non-transgenic spring wheat cultivar Dingxi 35 , which was commonly used as a control for testing drought resistance of drought-land spring wheat in the northwest Chi-na .Results of grey relational grade analyses indicated that the correlation degrees between these traits and drought resis-tance indexes were ranked from high to low in the following order:plant height ,single spike weight ,spike length ,SOD activity ,number of kernel per spike ,effective tillers ,POD activity ,1000-kernel weight ,proline content ,and then MDA content .关键词
转基因小麦/ABP9基因/抗旱性鉴定Key words
wheat/ABP9 gene/drought resistance parameters/subordinate function coefficients/grey correlative analysis分类
农业科技引用本文复制引用
罗影,王炜,赵军,王剑虹,裴怀弟,张斌科,叶春雷,李进京,欧巧明,王红梅..转基因小麦抗旱性鉴定及相关指标灰色关联度分析[J].干旱地区农业研究,2015,(1):48-53,6.基金项目
国家转基因生物新品种培育重大专项（2009ZX08005－013B ）；甘肃省科技支撑项目（1104NKCA073）；甘肃省农业科学院农业科技创新专项 （）
