| 海盐胁迫对海滨雀稗生长及植株体内阳离子含量的影响 |
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| 引用本文： | 邹轶,顾洪如,钟小仙,丁成龙,沈益新.海盐胁迫对海滨雀稗生长及植株体内阳离子含量的影响[J].草业科学,2009,26(4):117-120. |
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| 作者姓名： | 邹轶 顾洪如 钟小仙 丁成龙 沈益新 |
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| 作者单位： | 南京农业大学动物科技学院,江苏,南京,210095;江苏省农业科学院畜牧研究所,江苏,南京,210014;江苏省农业科学院畜牧研究所,江苏,南京,210014;南京农业大学动物科技学院,江苏,南京,210095 |
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| 基金项目： | 慈溪市农业社会发展科技计划，宁波市科技计划项目 |
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| 摘 要： | 将0、6.8、13.6、20.4、27.2和34 g/L的海盐同1/2Hoagland营养液混合用作灌溉处理，研究海盐胁迫对海滨雀稗Paspalum vaginatum生长及植株体内Na+、K+、Ca+、Mg+含量的影响。结果表明，海滨雀稗生长受海盐处理抑制，其抑制程度随海盐质量浓度的增加而加大。茎和叶中Na+含量随海盐质量浓度增高而升高，在海盐质量浓度34 g/L时，分别为23.35和22.27 mg/g；根中Na+含量在海盐质量浓度为6.8 g/L时与对照差异不显著,其他处理均显著高于对照和6.8 g/L的处理。叶中K+含量不随海盐胁迫而变化，维持在25 mg/g左右；茎中K+含量随海盐质量浓度增加逐渐降低，根的K+含量在20.4 g/L达到最大值6.4 mg/g，在34 g/L时反而降低，但高于对照。海滨雀稗耐盐的原因之一可能是叶片中K+含量稳定。
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| 关 键 词： | 海盐 海滨雀稗 Na+ K+ |
Effect of sea-salt stress on the growth and ion contents of Paspalum vaginatum |
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| ZOU Yi,GU Hong-ru,ZHONG Xiao-xian,DING Cheng-long,SHEN Yi-xin.Effect of sea-salt stress on the growth and ion contents of Paspalum vaginatum[J].Pratacultural Science,2009,26(4):117-120. |
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| Authors: | ZOU Yi GU Hong-ru ZHONG Xiao-xian DING Cheng-long SHEN Yi-xin |
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| Institution: | 1.College of Animal Science and Technology;Nanjing Agricultural University;Nanjing 210095;China;2. Institute of Animal Science;Jiangsu Academy of Agricultural Sciences;Nanjing 210014;China |
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| Abstract: | Growth response and contents of Na+, K+, Ca2+ and Mg2+ of seashore paspalum (Paspalum vaginatum) were studied by treating it with 1/2 Hoagland solution containing sea-salt with concentrations of 0, 6.8, 13.6, 20.4, 27.2 and 34 g/L. The results showed that the growth of seashore paspalum was inhibited by sea-salt stress, and the inhibiting was stronger along with the increasing of sea-salt concentration. The content of Na+ in leaf and stem increased with the increasing of sea-salt concentration, while the se... |
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| Keywords: | Na K |
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