| 花期根剪对苹果幼树叶营养及光合特性的影响 |
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| 引用本文： | 李宪利 高东升. 花期根剪对苹果幼树叶营养及光合特性的影响[J]. 山东农业大学学报(自然科学版), 1996, 27(3): 293-297 |
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| 作者姓名： | 李宪利 高东升 |
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| 作者单位： | 山东农业大学园艺系 |
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| 摘 要： | 对田间３年生富士／海棠进行花期根剪处理．根剪后叶全Ｎ含量降低，但经４～６周得以恢复，同时造成叶片可溶性精含量降低，而对叶Ｐ、Ｋ含量无显著影响。处理后叶Ｐｎ显著低于未处理植株，４周后渐渐恢复，但仍低于对照，说明根剪对Ｐｎ造成不可逆影响。光合日变化趋势无明显差异变化．
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| 关 键 词： | 根剪 营养 光合特性 苹果树 幼树 |
EFFECTS OF ROOT-PRUNING ON APPLE LEAF NUTRITIONCONTENTS AND PHOTOSYNTHETIC CHARACTERS |
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| Li Xianli,Gao Dongsheng,Geng Li. EFFECTS OF ROOT-PRUNING ON APPLE LEAF NUTRITIONCONTENTS AND PHOTOSYNTHETIC CHARACTERS[J]. Journal of Shandong Agricultural University, 1996, 27(3): 293-297 |
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| Authors: | Li Xianli Gao Dongsheng Geng Li |
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| Abstract: | Three-years old, grown in field. Fuji/M, micromalus, were root pruned atblooming stage. After root-pruning,for each week,the contents of leaf mineral elementN. P. K.and the soluble surgar and shoot leaf photosynthetic characters were analysised. The results indicated that the N content of root-pruned trees was lower than thecontroled ones(CK) (no root-pruning),and they would became the similar after 28 to42 days;but root-pruning had no effects on the content of leaf P. or K. Root-pruningalso leaded to lower leaf soluble-sugar contents. Pn of treated-trees became muchlower compared with the no root-pruning ones,but the diurnal variation of Pn weresimilar between treated ones and controled ones. |
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| Keywords: | root-pruning apple nutrition photosynthesis |
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