大豆科学2011，Vol.30Issue(5)：790-794,5.
大豆抗旱种质的鉴定及其与根系的关系
Identification of Drought Stress Tolerance in Soybean [ Glycine max ( L.) Merr.] and Related Root Traits
摘要
Abstract
Twenty accessions of soybean [ Gycine max ( L. ) Merr. ] selected from major varieties in Liaoning province were used to identify their tolerance to drought stress. Drought tolerance at seedling was evaluated with mean membership index value averaged over those of plant height,LAI,leaf and stem biomass. Two accession of highly tolerant,3 accession of sensitive and 15 accession of middle type were screened out,respectively. The mean membership index of drought tolerance was correlated with the relative root surface area and relative root biomass significantly at the 0.05 and 0.01 probability level,respectively. There was no significant difference between the mean membership index of drought tolerance and root traits of stress to those of non-stress. On condition of drought stress,there were close relationships among root diameter,root surface area and root volume of soybean. On condition of drought non-stress, root diameter significant positively correlated with root volume and root biomass, so did root volume with root surface area, root biomass. Under both drought stress and non-stress condition,there were significantly positive correlation between stem biomass and leaf biomass.关键词
大豆/抗旱/鉴定/根系/相关Key words
Soybean/Drought/Identification/Root system/ Correlation分类
农业科技引用本文复制引用
闫春娟,王文斌,董钻,王家宏,宋书宏,杜强,刘丙臣,石小翠..大豆抗旱种质的鉴定及其与根系的关系[J].大豆科学,2011,30(5):790-794,5.基金项目
辽宁省自然科学基金资助项目(20082133) （20082133）
辽宁省科技攻关资助项目(2008201004). （2008201004）
