| 钙过量对茶树幼苗叶绿素组成及钙、镁吸收的动态影响 |
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| 引用本文： | 申加枝,张新富,王玉,胡建辉.钙过量对茶树幼苗叶绿素组成及钙、镁吸收的动态影响[J].山东农业科学,2014(6):85-88. |
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| 作者姓名： | 申加枝 张新富 王玉 胡建辉 |
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| 作者单位： | 青岛农业大学园艺学院,山东青岛266109 |
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| 基金项目： | 青岛市科技计划基础研究项目“钙胁迫对茶树幼苗活性氧代谢主要保护酶的影响及其作用机制研究”[12-1-4-5-（7）-jeh];青岛农业大学高层次人才科研基金项目“钙过量对茶树幼苗品质成分及生长发育的影响研究”（631020） |
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| 摘 要： | 以"平阳特早"一年生茶苗为试材,通过水培试验,研究了30、90、150、210、270 mg/L钙处理下茶树幼苗叶绿素含量及钙、镁含量的动态变化。结果表明,经过5周水培,茶树叶片总叶绿素含量随着钙浓度的升高逐渐降低,钙浓度低于150 mg/L,叶片生长较旺盛,当钙浓度高于150 mg/L,叶片逐渐出现钙中毒现象,钙/镁增大。可见,钙过量影响了茶树幼苗对钙、镁等元素的吸收和分配,降低根系对镁离子的吸收,进而影响了茶树幼苗叶片中叶绿素组成。
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| 关 键 词： | 钙过量 茶树幼苗 叶绿素含量 镁吸收 |
Dynamic Effects of Excessive Calcium on Chlorophyll Composition and Calcium and Magnesium Absorption of Tea Seedlings |
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| Shen Jiazhi,Zhang Xinfu,Wang Yu,Hu Jianhui.Dynamic Effects of Excessive Calcium on Chlorophyll Composition and Calcium and Magnesium Absorption of Tea Seedlings[J].Shandong Agricultural Sciences,2014(6):85-88. |
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| Authors: | Shen Jiazhi Zhang Xinfu Wang Yu Hu Jianhui |
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| Institution: | (College of Horticulture, Qingdao Agricultural University, Qingdao 256109, China) |
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| Abstract: | The annual Pingyangtezao seedlings were bred under different calcium concentrations of 30 , 90 , 150 , 210 , 270 mg/L with hydroponic method , and the dynamic changes of chlorophyll composition ,calci-um and magnesium absorption were measured .The results showed that the total chlorophyll content in tea leav-es gradually reduced with the increase of calcium concentration .The leaves grew well when Ca 2＋concentration was below 150 mg/L, but appeared calcium poisoning phenomenon when Ca 2＋concentration was more than 150 mg/L after 5-week hydroponic experiment .Excessive calcium could affect the absorption and distribu-tion of calcium and magnesium in tea seedlings , and decrease the absorption of root to magnesium , so the chlorophyll composition in tea leaves was affected . |
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| Keywords: | Excessive calcium Tea seedling Chlorophyll content Magnesium absorption |
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