中国农业科技导报2025，Vol.27Issue(7)：54-71,18.DOI:10.13304/j.nykjdb.2024.0101
大豆种质资源苗期耐碱筛选及评价分析
Alkaline Tolerance Screening and Evaluation Analysis of Soybean Germplasm Resources at Seedling Stage
摘要
Abstract
In order to explore the tolerance of different soybean germplasm resources to alkali stress treatment at seedling stage,and establish the evaluation system of soybean alkaline tolerance at seedling stage,326 soybean varieties were as materials.They were treated with the pH 9.0,150 mmol·L-1 mixed alkali solution(NaHCO3∶Na2CO3=5∶1)for 7 d.The changes of 12 growth-related indexes under different treatments,such as dry/fresh weight of shoot or root,total dry/fresh weight,intact roots number intact roots length,root tips number,root/shoot ratio,relative chlorophyll content,and water content of plants were determined.The results showed that alkali stress significantly reduced the growth indexes of soybean varieties at seedling stage except root/shoot ratio.The comprehensive evaluation value(D value)of alkali tolerance was obtained by principal component analysis and fuzzy membership function method.According to the D value,326 soybean varieties were classified into 4 groups:extremely alkali tolerant varieties(18 varieties),alkali tolerant varieties(140 varieties),alkali sensitive varieties(130 varieties)and extremely alkali sensitive varieties(38 varieties),and the comprehensive evaluation system were established.Above results provided theoretical basis for the selection and evaluation of alkaline resistant soybean varieties.关键词
大豆/耐碱性/种质资源筛选/综合评价Key words
soybeans/alkali tolerance/germplasm screening/comprehensive evaluation分类
农业科技引用本文复制引用
郑焕斌,李明,杨素欣,吴委林..大豆种质资源苗期耐碱筛选及评价分析[J].中国农业科技导报,2025,27(7):54-71,18.基金项目
国家重点研发计划项目(2022YFD1500503). （2022YFD1500503）
