中国油料作物学报2023，Vol.45Issue(6)：1174-1184,11.DOI:10.19802/j.issn.1007-9084.2023122
479份芥菜型油菜种质资源萌发期耐盐性综合评价
Comprehensive evaluation of salt tolerance of 479 Brassica juncea germplasm resources at germination stage
摘要
Abstract
To understand the salt tolerance of different Brassica juncea germplasm resources,this study used Na-Cl solutions with concentrations of 0,150 mmol/L,200 mmol/L,and 250 mmol/L to treat 479 B.juncea germplasm re-sources from different countries under salt stress,and measured germination rate,root length,bud length,and fresh weight;Comprehensive evaluation of the salt tolerance of the test materials was conducted using principal component analysis,membership function,multiple linear regression analysis,and cluster analysis.The results showed that under the treatment of 200 mmol/L NaCl solution,479 materials could be effectively classified into 4 categories:(1)12 salt tolerant varieties;(2)75 moderate salt tolerant varieties;(3)313 salt tolerant varieties;and(4)79 salt sensitive variet-ies.A multiple linear regression equation was established for the identification of salt tolerance in B.juncea,y= 0.537x1+0.310x2+0.089x3+0.064x4.The selected salt tolerant materials lay the foundation for cultivating new salt tol-erant B.juncea.关键词
芥菜型油菜/耐盐性/主成分分析/聚类分析/综合评价Key words
Brassica juncea/salt tolerance/principal component analysis/cluster analysis/comprehensive evaluation分类
农业科学引用本文复制引用
胡凤仪,侯献飞,于月华,贾东海,刘忠松,李强,苗昊翠,沈金雄,顾元国..479份芥菜型油菜种质资源萌发期耐盐性综合评价[J].中国油料作物学报,2023,45(6):1174-1184,11.基金项目
新疆维吾尔自治区重大科技专项(2022A03004-4) （2022A03004-4）
国家重大专项(2022ZD0401005) （2022ZD0401005）
