| 邓恩桉等6种桉树的耐寒能力研究 |
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| 引用本文： | 罗建中,曹加光,卢万鸿.邓恩桉等6种桉树的耐寒能力研究[J].桉树科技,2011(2):34-38. |
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| 作者姓名： | 罗建中 曹加光 卢万鸿 |
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| 作者单位： | 国家林业局桉树研究开发中心,广东湛江524022 |
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| 基金项目： | 国家林业局948项目“辐射霜冻气候室用于耐寒桉树定向选育技术引进”（2008-4-09） |
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| 摘 要： | 通过对在江西北部试验地的温度记录及对6个桉树树种其9个品种的耐寒表现进行研究,发现了试验地的气温变化特点,并判断极限低温、不充分的耐寒锻炼是导致桉树寒害的主要原因;在-6.8℃低温中,本沁桉、溪谷桉的耐寒能力强,多利桉与邓恩桉具有一定的耐寒力,柳桉和巨桉不具有耐寒能力。选择出耐寒能力与速生性均优良的邓恩桉20748种源、本沁桉为推荐发展的品种。
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| 关 键 词： | 桉树 耐寒能力 邓恩桉 本沁桉 树高 |
Cold- tolerance Study on 6 Eucalypt Species |
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| Institution: | LUO Jian - zhong, CAO Jia - guang, LU Wan - hong ( China Eucalypt Research Centre, Zhanjiang 524022, Guangdong, China ) |
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| Abstract: | The temperature record in trail site and cold - tolerant performance of 9 varieties from 6 eucalypt species were studied. From the pattern of temperature change of the site, the lowest temperature and in sufficient cold - hardening were judged as the main cause to the eucalypt cold damage. Under low temperature as - 6.8~C, E. benthamii and E. badjensis showed good cold - tolerance. E. dorrigoensis and E. dunnii had some tolerance. But E.saligna and E.grandis couldn＇t tolerant at all. E. dunnii＇s 20748 seedlot and E. benthamii had both good cold - tolerance and fast - growing, were selected as the varieties recommended to be extended. |
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| Keywords: | eucalyptus cold - tolerance E dunnii E benthamii tree height |
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