| 重金属镉离子对花生幼苗的影响 |
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| 引用本文： | 牛常青. 重金属镉离子对花生幼苗的影响[J]. 晋中学院学报, 2009, 26(3): 63-67 |
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| 作者姓名： | 牛常青 |
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| 作者单位： | 晋中学院,生物科学与技术学院,山西,晋中,030600 |
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| 摘 要： | 采用实验室内培养研究不同浓度Cd2+处理对花生幼苗生长和部分生理特性的影响.结果表明:1.不同浓度CCd2+对花生幼苗株高和根长生长的抑制影响是显著的.2.不同浓度Cd2+对花生幼苗生物量的影响是显著的,对地上部分的毒害作用与其对地下部分的毒害作用相当;Cd2+浓度为0.25 mg/L对花生幼苗全株生物量生长产生促进作用,但随着浓度的增加对其生长的抑制作用却在增加,不同浓度Cd2+对株高的影响基本与对全株生物量一致.3.花生幼苗叶绿素含量以及叶绿素a/,b比值在0.25mg/L Cd2+处理浓度时达到峰值,随Cd2+浓度的增加,含量下降,短时间、低浓度Cd2+胁迫对花生幼苗叶绿素a和叶绿素b的合成有刺激效应.
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| 关 键 词： | 花生 镉 幼苗 叶绿素 生物量 |
Effect of Heavy Metal Cadmium on Arachis hypogaea's Seedling Growth |
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| NIU Chang-qing. Effect of Heavy Metal Cadmium on Arachis hypogaea's Seedling Growth[J]. Journal of Jinzhong University, 2009, 26(3): 63-67 |
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| Authors: | NIU Chang-qing |
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| Affiliation: | School of Life Science and Technology;Jinzhong University;Jinzhong 030600;China |
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| Abstract: | A laboratory incubation experiment has been conducted to study the effects of different Cd2+ concentrations on seedling growth and some physiological characteristics of Arachis hypogaea through determining some physiological and biochemical indexes.The results are shown as follows: 1.The inhibitory effect of different Cd2+ concentrations on seedlings growth is significant;2.The effect of different Cd2+ concentrations on Arachis hypogaea's seedlings biomass is significant,the poisoning effect on stem and lea... |
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| Keywords: | Arachis hypogaea Cadmium seedling growth chlorophyll biomass |
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