南京林业大学学报(自然科学版) ›› 2007, Vol. 31 ›› Issue (04): 27-32.doi: 10.3969/j.jssn.1000-2006.2007.04.006

• 研究论文 • 上一篇    下一篇

硅对盐胁迫下金丝小枣叶片不同多胺形态和含量的影响

刘永霞,徐锡增*   

  1. 南京林业大学森林资源与环境学院, 江苏 南京 210037
  • 出版日期:2007-08-18 发布日期:2007-08-18

Effects of Silicon on Polyamine Types and Forms in Leaf of Zizyphus jujube cv. Jinsi-xiaozao Under Salt Stress

LIU Yong-xia, XU Xi-zeng*   

  1. College of Forest Resources and Environment Nanjing Forestry University, Nanjing 210037, China
  • Online:2007-08-18 Published:2007-08-18

摘要: <正>分析了在黔北山区31个样地中6个立地因子对撑绿竹平均胸径、平均竹高及丛平均株数生长的影响。结果表明:1海拔、小地形部位、土层厚度及坡度对撑绿竹生长的影响较大,存在显著差异或极显著差异,而不同坡向和土壤类型对撑绿竹的生长则没有显著差异;2造林地应选择在海拔700m以下尤其是高产竹林,700~800m则选择背风的山冲山洼,800m以上不适应撑绿竹生长;3小地形部位的坡上部山脊不太适应于撑绿竹生长而不宜栽种,其余河滩、山冲山洼、坡下部及坡中部等均可栽种撑绿竹;4土层厚度中的薄层土<40cm不太适应于撑绿竹生长,造林地应选择在中、厚层土壤上,最好是厚层土;5紫色土和石灰土、阳坡和阴坡均适应于撑绿竹的生长,但紫色土、阳坡生长的撑绿竹相对更好一些。

Abstract: The change of three polyamine’s content was researched under salt stress and silt con fertilizer added after salt stress. Three different forms of polyamine individually are free form, perchloric acid soluble covalently conjugated form (PSCC) and perchloric acid insoluble covalently conjugated form (PISCC). The result of this research was as follows: the f-Put and the total content of Polyamine under salt stress descends remarkably and the ratio between (Spd+Spm) and the total put ascends notably; PSCC-Put and the total content of PAs ascended notably with increasing salinity under salinity conditions with the increase of salt’s strength and the same as f-Put; PISCC-Put ascends with the increase of salt’s strength and the content of PISCC-Spd and PISCC-Spm ascends with the increase of salt’s strength. At the same level of salt’s strength, the ratio of (f-Spm+f-Spd) and f-Put increases remarkably with silicon fertilizer and the same as f-Put, f-Spd, PSCC-Put, PSCC-Spd and the total content of PSCC-PAs; with silicon fertilizer, the content of PISCC-Spd and PSICC-Spm under salt stress increase; in addition, the level of PISCC-Put is inhibited, It indicated that Si regulated the content of different polyamine types and forms in Zizyphus jujube cv. Jinsi-xiaozao leaves. Therefore, it alleviated the toxic effects from salt ions.

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