| 李不同类型枝条和树体部位叶片光合速率研究 |
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| 引用本文： | 于泽源,许姣卉,霍俊伟. 李不同类型枝条和树体部位叶片光合速率研究[J]. 东北农业大学学报, 2002, 33(3): 233-236 |
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| 作者姓名： | 于泽源 许姣卉 霍俊伟 |
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| 作者单位： | 东北农业大学园艺学院,黑龙江,哈尔滨,150030 |
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| 摘 要： | 以‘牛心李’成龄树为试材测定了不同类型枝条和树体部位的净光合速率 (Pn)。结果表明 ,不同类型枝条叶片 Pn存在一定差异 ,短果枝叶片 Pn显著高于其他类型枝条叶片 Pn;在同一果枝上 ,果实上位叶具有最强的光合性能 ,果实的存在促进叶片 Pn提高 ,且显示出源 -库关系只在较近距离时作用显著 ;树体不同部位及不同层次叶片 Pn与光合有效辐射密切相关
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| 关 键 词： | 牛心李 净光合速率 枝条类型 树体部位 |
| 文章编号： | 1005-9369(2002)03-0233-04 |
| 修稿时间： | 2001-12-15 |
Studies on Pn of the leaves of different Shoots and tree-crown location in plum tree |
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| YU Ze yuan,XU Jiao hui,HUO Jun wei. Studies on Pn of the leaves of different Shoots and tree-crown location in plum tree[J]. Journal of Northeast Agricultural University, 2002, 33(3): 233-236 |
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| Authors: | YU Ze yuan XU Jiao hui HUO Jun wei |
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| Abstract: | Pn of leaves of different branches and tree-crown location was measured.Te results showed the Pn was different in all kinds of branches,which the Pn of short fruit branches was much higher than the other branches.In the same branches,the upper leaves possessed the strongest photosynthetic characteristics because of fruit existence,which indicated the relation of source and store was obvious at closer range.In addition Pn of the leaves of different tree-crown and levels was closely related with PAR.$$$$ |
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| Keywords: | Niuxin plum Pn shoots tree-crown location |
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