| 杜仲果实内杜仲胶形成积累规律的研究 |
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| 引用本文： | 杜红岩,杜兰英,李芳东.杜仲果实内杜仲胶形成积累规律的研究[J].林业科学研究,2004,17(2):185-191. |
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| 作者姓名： | 杜红岩 杜兰英 李芳东 |
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| 作者单位： | 中国林业科学研究院经济林研究开发中心,河南,郑州,450003 |
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| 基金项目： | 国家高技术项目"杜仲良种快繁及高产栽培技术研究"(99 15)的部分研究内容 |
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| 摘 要： | 采用选择典型样株和随机取样的方法对杜仲果实含胶率的年变化及逐年变化特点和规律进行了研究。结果表明,杜仲果实内含胶特性的年变化特点可以划分为两个阶段：在果实基本停止生长以前,果皮和果实含胶率变化与果实的生长发育密切相关,果皮和果实含皎率随着果实的生长而迅速提高;在果实基本停止生长以后,含胶率提高缓慢。不同树龄杜仲果皮和果实的含胶率比较稳定。采用高接换雌建园和嫁接苗建园两种方式建立杜仲高产皎果园都具有十分明显的增产效果。
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| 关 键 词： | 杜仲果实 杜仲胶 形成规律 积累规律 含胶率 高接换种 嫁接苗建园 |
| 文章编号： | 1001-1498(2004)02-0185-07 |
| 收稿时间： | 2003/10/30 0:00:00 |
Dynamic of Gutta-percha Formation and Accumulation in Samara of Eucommia ulmoides |
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| DU Hong-yan,DU Lan-ying and LI Fang-dong.Dynamic of Gutta-percha Formation and Accumulation in Samara of Eucommia ulmoides[J].Forest Research,2004,17(2):185-191. |
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| Authors: | DU Hong-yan DU Lan-ying and LI Fang-dong |
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| Institution: | Non-timber Forestry Research and Development Center, CAF, Zhengzhou450003, Henan, China;Non-timber Forestry Research and Development Center, CAF, Zhengzhou450003, Henan, China;Non-timber Forestry Research and Development Center, CAF, Zhengzhou450003, Henan, China |
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| Abstract: | For better understanding the annual and year after year changes and regularities of gutta-percha content in samara of Eucommia ulmoides and for providing scientific theory for effective use of gutta-percha, studies were conducted in 2002 at the experimental demonstration base in Songxian County, Henan Province. Typical sample-tree selection and random selection were applied in this study. Integrated extraction was used to test the gutta-percha content rate. The results showed that gutta-percha content changes in samara could be divided into two stages. The content in kernel and pericarp performed a close relation with the growth of samara, which increased rapidly along with the samara's growth before the samara stopped to grow; while the content increased slowly after the samara's development. The gutta-percha content was in stable among the fruits from different ages of trees. Outstanding production increase was achieved through setting up orchards by grafting female branches on mature trees and by planting grafted saplings. Therefore, high-yield gutta-percha orchard could be established either by planting grafted saplings or by grafting female branches. |
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| Keywords: | samara of Eucommia ulmoides gutta-percha formation and accumulation dynamic |
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