中国油料作物学报2013，Vol.35Issue(3)：271-275,5.DOI:10.7505/j.issn.1007-9084.2013.03.007
甘蓝型油菜发芽期的耐盐性筛选
Screening of Brassica napus for salinity tolerance at germination stage
摘要
Abstract
Fifteen Brassica napus genotypes were stressed by gradient NaC1 concentrations.Six physiological characteristics including germination rate,germination potential,root length,hypocotyl length,plantlet weight and above ground weight were tested on germination stage.Results showed that relative germination rate changed in Boltzmann curve with various NaC1 concentrations.214mmol/L was defined as the optimum salt concentration for evaluating the salt tolerance of rapeseed.Under this salt stress,root and hypocotyl lengths decreased remarkably,germination rate,germination potential and plantlet weight changed less,and above ground weight changed the least.Results showed significant correlations among the six characteristics.Root length and hypocotyl length could be used to forecast its salt-tolerance ability of a given line preliminarily.Cluster analysis indicated that the 15 lines could be divided into 3 groups.WH126 and WH129 had higher potential of high salt-tolerance.WH137 was the most salt-sensitive line.关键词
发芽期/盐胁迫/甘蓝型油菜/耐盐性鉴定Key words
Germinating stage/Stressed by sodium chloride/Brassica napus/Salt tolerance identification分类
农业科技引用本文复制引用
龙卫华,浦惠明,张洁夫,戚存扣,张学昆..甘蓝型油菜发芽期的耐盐性筛选[J].中国油料作物学报,2013,35(3):271-275,5.基金项目
农业部油料作物生物学重点实验室开放课题(2012-1) （2012-1）
江苏省农业科技自主创新资金[CX(12)2028] （12）
