| 落叶松水浸液对胡桃楸幼苗生长的影响 |
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| 作者姓名： | YANG Li-xue |
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| 作者单位： | College of Forestry, Northeast Forestry University, Harbin, 150040, PR. China |
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| 基金项目： | This paper was supported by National Natural Science Foundation of China （No. 30400341） and Heilongjiang Provincial Science Foundation （No. C0320）Acknowledgement I thank Dr. YAN Xiu-feng for his help and guidance. |
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| 摘 要： | A study was conducted to detect the effect of water extracts from different parts such as root, bark, branch and leaf, of adult larch, Larix gmelini, trees on growth of Manchurian walnut, Juglans mandshudca, seedlings and the allelopathy between the two tree species. Four concentrations （100 g. kg i, 50 g. kg^-1, 25 g. kg^-1 and 12.5 g. kg^-1） were prepared for each kind of extracts. Result showed that the water extracts with low and moderate concentrations accelerated the growth of collar diameter and increased biomass and root/shoot ratio of walnut seedlings. The water extracts from branches and barks with low and moderate concentrations accelerated the height growth of the seedlings, while those from leaves and roots slightly decreased the height growth of seedlings. The fact that application of water extracts of larch improved the growth of Manchurian walnut attributes possibly to the allelopathy between the two tree species.
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| 关 键 词： | 森林资源 树木生理学 树高 胡桃 植化相克 |
| 文章编号： | 1007-662X（2005）04-0285-04 |
| 收稿时间： | 2005-05-09 |
| 修稿时间： | 2005-07-28 |
Effect of water extracts of larch on growth of Manchurian walnut seedlings |
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| YANG Li-xue.Effect of water extracts of larch on growth of Manchurian walnut seedlings[J].Journal of Forestry Research,2005,16(4):285-288. |
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| Authors: | Yang Li-xue |
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| Institution: | (1) College of Forestry, Northeast Forestry University, 150040 Harbin, P.R. China |
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| Abstract: | A study was conducted to detect the effect of water extracts from different parts such as root, bark, branch and leaf, of
adult larch,Larix gmelini, trees on growth of Manchurian walnut,Juglans mandshurica, seedlings and the allelopathy between the two tree species. Four concentrations (100 g·kg−1, 50 g·kg−1, 25 g·kg−1 and 12.5 g·kg−1) were prepared for each kind of extracts. Result showed that the water extracts with low and moderate concentrations accelerated
the growth of collar diameter and increased biomass and root/shoot ratio of walnut seedlings. The water extracts from branches
and barks with low and moderate concentrations accelerated the height growth of the seedlings, while those from leaves and
roots slightly decreased the height growth of seedlings. The fact that application of water extracts of larch improved the
growth of manchurian walnut attributes possibly to the allelopathy between the two tree species.
Foundation item: This paper was supported by National Natural Science Foundation of China (No. 30400341) and Heilongjiang Provincial Science
Foundation (No. C0320)
Biography: YANG Li-xue (1973-), male, Ph.D. candidate, Lecturer in Northeast Forestry University, Harbin, 150040, P.R. China.
Responsible editor: Song Funan |
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| Keywords: | Juglans mandshurica Larix gmelini Water extract Collar diameter Tree height Root/shoot ratio Allelopathy |
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