盐胁迫对多花木蓝幼苗生理特性的影响
Effects of Salt Stress on Physiological Characteristics of Indigofera amblyantha Seedling
徐隆辉 1舒世超 2赵良磊 1王文恩2
作者信息
- 1. 武汉钢铁集团绿化公司,湖北武汉430083
- 2. 华中农业大学园艺林学学院,湖北武汉430070
- 折叠
摘要
[目的]研究多花木蓝幼苗的耐盐性,为生产利用提供参考依据.[方法]选用不同浓度梯度的NaCl溶液对盆栽多花木蓝幼苗定时定量浇灌,每3d,采集各处理的叶片进行生理指标测定,直到出现盐害症状为止.[结果]在盐胁迫条件下,随着盐溶液浓度的上升和胁迫处理时间的延长,多花木蓝幼苗的相对电导率呈先下降后上升的趋势,叶绿素含量呈下降的趋势,可溶性蛋白质含量和SOD活力呈先上升后下降的趋势.[结论]从盐胁迫第9天开始,浓度大于150 mmol/L的NaCl溶液对所测生理指标的影响最大.
Abstract
[Objective] To research the salt stress of Indigofera amblyantha seedling,and to provide references for the application of I.amblyantha.[Method] I.amblyantha pot seedling were poured by NaGl solution with different concentration.Taking leaves of each treatment every 3 days to measure physiological indicators from the start date of salt stress until the salt injury symptoms appear.[Result] Under salt stress,with the increased concentrations of salt solution and days of stress,the value of I.amblyantha seedling's relative conductivity has a decreasing trend at first but then,has an increasing trend.The chlorophyll content has a decreasing trend,the soluble protein content and SOD activity have an increasing trend at first but then,both of this two indicators have a decreasing trend.[Conclusion] The NaCl solution with more than 150 mmol/L has the greatest influence on the measured physiological parameters from the ninth day of salt stress.
关键词
多花木蓝/幼苗/生理特性/盐胁迫Key words
Indigofera amblyantha/Seedling/Physiological characteristics/Salt stress引用本文复制引用
出版年
2016
国家科技期刊平台
NSTL
维普
万方数据