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持续盐胁迫对耐盐性不同的两个黄瓜品种幼苗生长和生理特性的影响

作  者:
周青;王纪忠;陈新红;万翠莲
单  位:
淮阴工学院生命科学与化学工程学院
关键词:
黄瓜幼苗;持续盐胁迫;生长;生理特性
摘  要:
以耐盐能力不同的黄瓜品种"津春2号"和"津优3号"为试验材料,研究了不同浓度NaCl持续胁迫处理对黄瓜幼苗植株生长和相关生理特性的影响。结果表明:在持续盐胁迫下,2个黄瓜品种株高、根长、生物累积量、根冠比、叶绿素和可溶性蛋白含量明显低于对照,且都随NaCl处理浓度的增加而降低,可溶性糖含量均呈先升高后降低的变化特征,相对电导率呈升高趋势。虽然NaCl浓度和胁迫时间相同情况下,2个黄瓜品种的耐盐指数和平均耐盐比率差异不大,但"津优3号"受影响程度小于"津春2号"。
译  名:
Effects of Continued Salt Stress on the Gowth and Physiological Characteristics of Two Varieties Cucumber Seedling
作  者:
ZHOU Qing;WANG Ji-zhong;CHEN Xin-hong;WAN Cui-lian;College of Life Sciences and Engineering,Huaiyin Institute of Technology;
关键词:
cucumber seedling;;continued salt stress;;growth;;physiological characteristics
摘  要:
Taking cucumber seedlings with different salt resistance of ‘Jinchun 2'and ‘Jinyou 3' as materials,the physiological indexes and growth were studied under different concentrations of continued salt stress.The results showed that the plant height,root length,biomass accumulation,ratio of root to shoot,the contents of chlorophyll and soluble protein were lower than those in contrast,and decreased with the increased of NaCl concentration.While the soluble sugar content was first rose and then declined,and the relative conductivity were increased under continued salt stress treated.The effects of ‘Jinyou 3' which had higher salt tolerance index and salt-tolerance ratio was lower than ‘Jinchun 2' under same salt stress contents and time.

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