不同南瓜砧木和自交系芽苗期的硝酸盐耐性比较  

Comparison of Ca(NO_3)_2 tolerance of different pumkin rootstock and selfed varieties in sprout stage

作　　者：罗未蓉[1] 孙涌栋[1] 张文杰[1] 雒海潮[1] 

机构地区：[1]河南科技学院园林学院,河南新乡453003

出　　处：《广东农业科学》2009年第11期36-38,48,共4页Guangdong Agricultural Sciences

基　　金：河南省教育厅自然科学研究计划项目(2008B210007);河南科技学院重点科研项目(6011)

摘　　要：对芽苗期6个南瓜砧木品种进行了不同Ca(NO3)2浓度(0,80,120,160,200,240mmol/L)胁迫处理,7d后调查不同处理的盐胁迫指数,结果表明,6个南瓜砧木品种在不同Ca(NO3)2浓度处理下存在明显的耐盐性差异,其中120mmol/LCa(NO3)2可以作为芽苗期瓜耐盐筛选浓度;以Ca(NO3)2浓度为120mmol/L作基准,对18个南瓜自交系进行了芽苗期耐盐分析,结果显示,自交系063-2和自交系045-3的耐盐性较强,有较好的利用价值。Salt stress index of 6 pumkin rootstock varieties were determined under a series of Ca （NO3）2 concentration（0, 80, 120, 160, 200, 240 mmol/L） in sprout stage. The results showed that there were significant differnces in salt tolerance among 6 pumkin rootstock varieties after 7 d of stress treatment, and 120 mmol/L Ca（NO3）2 concentration was the effective concentration to select salt tolerance materials of pumkin. The analysis of salt tolerance of 18 pumkin selfed varieties were studied at 120 mmol/L Ca（NO3）2 concentration and the results showed that 063-2 and 045-3 had the stronger salt tolerance.

关 键 词：南瓜 CA(NO3)2 耐盐性 芽苗期 盐胁迫指数 

分 类 号：S642.1[农业科学—蔬菜学]