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浙江大学学报（农业与生命科学版）
Journal of Zhejiang University (Agriculture and Life Sciences)  2006, Vol. 32 Issue (4): 420-427    DOI:
    
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Published: 27 July 2006
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. null. Journal of Zhejiang University (Agriculture and Life Sciences), 2006, 32(4): 420-427.

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https://www.zjujournals.com/agr/     OR     https://www.zjujournals.com/agr/Y2006/V32/I4/420


不同耐盐性植物在盐胁迫下的生长与生理特性比较研究

对不同耐盐性植物厚叶石斑木(Raphiolepis umbellata)、桑(Morus alba)和月季(Rosa chinensis)在盐胁迫下的新梢、新根生长量等形态指标,以及Na+、K+、Na+/K+,游离脯氨酸、叶绿素含量、光合速率、气孔导度、蒸腾速率等生理指标的比较研究表明:盐对3种植物生长的影响随浓度的升高和胁迫时间的延长而增加;Na+、K+等无机离子是厚叶石斑木主要的渗透调节物质,而在桑和月季中则为游离脯氨酸;叶绿素含量、光合速率等生理指标随盐浓度升高先升后降,变化幅度:月季＞桑＞厚叶石斑木;3种植物耐盐能力由强至弱依次为厚叶石斑木、桑和月季.
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