干旱地区农业研究2013，Vol.31Issue(1)：177-182,6.
转基因玉米种子萌发期抗旱性鉴定
Identification of drought resistance of transgenic maize during seed germination stage
摘要
Abstract
The experiment was carried out with 13 transgenic inbred lines of maize under the polyethylene glycol ( PEG) simulated water stress to study the impact of osmotic stress on seed germination. The results showed that the germination potential, germination rate, root number, radicle length, plumule length and transforming rate of storage substance in maize were affected by drought stress to different extend, and there existed significant differences in drought resistance among different inbred lines. The quantitative evaluation by using subordinate function method indicated that SD10 was the inbred line with high drought -resistance; CBF-3-4, SD13, SD05, CBF-1-4, CBF-6-5, SD-P3 and SD - P5 were the inbred lines with mid drought-resistance; and SD06, CBF - 3 - 1, SD07, SD - P1 and SD -P4 were the inbred lines with low drought- resistance. The analysis results obtained by grain drought resistant index ( GDRI) were similar to those by subordinate function method.关键词
转基因玉米/种子萌发/渗透胁迫/隶属函数Key words
transgenic maize/ seed germination/ osmotic stress/ subordinate function分类
农业科技引用本文复制引用
冷益丰,何文铸,张彪,赵久然,杨俊品,刘亚,康继伟,陈洁,唐海涛,谭君..转基因玉米种子萌发期抗旱性鉴定[J].干旱地区农业研究,2013,31(1):177-182,6.基金项目
转基因生物新品种培育重大专项(2009ZX08003-007B) （2009ZX08003-007B）
国家玉米支撑计划(2011BAD35B01) （2011BAD35B01）
国家玉米863计划(2011AA10A103-2) （2011AA10A103-2）
四川省农科院青年基金(2011QNJJ-008) （2011QNJJ-008）
