中国蔬菜Issue(22)：20-26,7.
不同黄瓜品种苗期耐盐性指标筛选与评价体系构建
Salt Tolerance Indexes Screening of Different Cucumber Cultivars at Seedling Stage and Construction of Its Evaluation System
摘要
Abstract
This study was conducted to compare differences in salt tolerance of different cucum-ber(Cucumis sativus L.)cultivars and to construct the measuring system for evaluating identification indexes of salt tolerance in cucumber seedlings.Cucumber seedlings were allowed to grow in substrate prepared from a mixture of sand and perlite,and then hydrated with half-strength Horticulture nutri-ent solutions containing different salt concentrations.Cluster analysis was performed to explore the possible similarities in salt-tolerance of 15 tested cucumber cultivars,using data of the leaf salt injury index.Furthermore,principal components analysis was adopted to measure the proportion taken by each growth-or biomass-index in the salt tolerance evaluation system.The results showed that root dry weight,strong seedling index and the root/shoot ratio could well reflect the cucumber seedlings’response to salt stress,which could also be taken as index for evaluating cucumber seedlings’salt tolerance. Based on this result,cucumber cultivars were separated into 5 groups,i.e.,cucumber cultivars highly resistant to salt-stress(i.e‘Lyuguan No. 1’and‘Ningxingoumeishuiguohuanggua’),cucumber cultivars resistant to salt-stress(i.e.‘Zhongnong No. 12’,‘Zhongke 958’,‘Helanminihuanggua’,‘Zhongnong No. 21’and‘Zhongnong No. 16’),cucumber cultivars relatively sensitive to salt-stress (i.e.‘Jinyou No. 1’,‘Yousheng’and‘Zhongnong No. 8’),cucumber cultivars sensitive to salt-stress (i.e.‘Jingpengmici’and‘Xin No. 4’)and cucumber cultivars highly sensitive to salt-stress (i.e.‘Chunpeng No. 5’,‘Lyuyou’and‘Zhongnongda No. 41’).关键词
黄瓜/品种/耐盐性/筛选/评价体系Key words
Cucumber/Cultivars/Salt tolerance/Screening/Evaluation system分类
农业科技引用本文复制引用
门立志,王毅,曹云娥,陈青云,田永强,高丽红..不同黄瓜品种苗期耐盐性指标筛选与评价体系构建[J].中国蔬菜,2013,(22):20-26,7.基金项目
公益性行业（农业）科研专项（201203003，201303014），中央高校基本科研业务费专项 （）
