| 果树缺铁黄化叶片矿质元素含量变化的研究 |
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| 引用本文： | 叶优良,李晓林.果树缺铁黄化叶片矿质元素含量变化的研究[J].落叶果树,1997,29(4):1-4. |
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| 作者姓名： | 叶优良 李晓林 |
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| 摘 要： | 以苹果、梨、桃为试材，按叶片缺铁黄化程度不同分级采样并分析叶片矿质元素含量变化。结果表明：随着果树黄化叶片的加剧，叶片全量Ｐ、Ｋ、Ｂ含量显著增加，Ｃａ、Ｍｎ含量明显降低，Ｎ、Ｃｕ、Ｚｎ有一定的变化，但趋势不太明显；随叶片失绿程度的加重，Ｃａ／Ｋ、Ｍｎ／Ｃｕ、Ｆｅ／Ｍｎ、Ｂ／Ｍｎ变化也极为明显。分别用叶片矿质元素含量及元素间比值与叶绿素含量进行相关分析表明，矿质元素以Ｂ、Ｐ与叶绿素关系最密切，Ｍｎ、Ｎ、Ｃａ次之；元素间以Ｃａ／Ｋ、Ｂ／Ｍｎ与叶绿素相关性最好，Ｍｎ／Ｃｕ、Ｆｅ／Ｍｎ、Ｐ／Ｚｎ次之。
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| 关 键 词： | 果树 缺铁黄化 叶片 矿质元素 变化 |
Content change of minerals in yellowing leaves of fruit trees induced by chlorosis |
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| Abstract: | Analysing the contents of minerals in leaves of apple, pear and peach trees sampled according to their degree of yellowing we found that as the yellowing degree increased, the contents of P,K and B were all remarkably increased,contents of Ca and Mn were all remarkably lowered, and Contets of N,Cu and Zn changed in some degree but had no obvious trend Moreover,changes of Ca/K,Mn/Cu,Fe/Mn and B/Mn were also obvious Correlation analysis revealed that B and P had the most close relation to chlorophyl content, Mn, N and Ca were next to them;Ca/K and B/Mn had a good relation,Mn/Cu,Fe/Mn and P/Zn were next to them |
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| Keywords: | fruit tree chlorosis leaf minerals change |
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