尾赤桉DH191-4选育研究及栽培技术.PDF

第33 卷 第4 期 桉树科技 Vol.33 No.4 2016 年12 月 EUCALYPT SCIENCE TECHNOLOGY Dec.2016 尾赤桉DH191-4 选育研究及栽培技术 张 磊，莫继有，兰 俊，黎怀玲，王建忠 (广西国有东门林场，广西 扶绥 532108) 摘要：尾赤桉DH191-4 是东门林场采用印度尼西亚的尾叶桉U48 (母本)和澳大利亚的赤桉CM(父本)进行人工杂 交，利用杂优模式选育的桉树新品种(桂 S-SC-EUC-011-2013) ，2013 年经广西壮族自治区良种委员会审定为桉树 良种。本文简介了该品种的选育研究过程，并对其特征特性、适应性、栽培技术要点作了简述。 关键词：桉树；选育；栽培技术 中图分类号：S722.3+4 文献标识码：A Selective Breeding and Cultivation of Eucalyptus Variety DH191-4 ZHANG Lei, MO Ji-you, LAN Jun, LI Huai-ling, WANG Jian-zhong (Guangxi Dongmen Forest Farm, Fusui 532108,Guangxi,China) Abstract : Clone DH191-4 is a new eucalypt variety developed by Dongmen State Forest Farm through hybridization of Eucalyptus urophylla (maternal plant native to Indonesia) ×E. camaldulensis (paternal plant native to Australia). The development process was based on superior selection and breeding, and DH191-4 (variety code: Guangxi S-SC-EUC-011-2013) was officially approved as an improved eucalypt variety by the Committee of Improved Varieties in Guangxi Zhuang Autonomous Region. This paper introduces the selective breeding process involved in development of this new variety and examines its characteristics, adaptability, cultivation techniques as well as prospects for future development. Key words: Eucalyptus ; breeding; cultivation techniques 我国桉树(Eucalyptus) 引种工作已有100 多年的 点作了简述，以期为其推广使用提供参考。 历史，引种过的桉树已达 300 多种，引种的范围遍 1 DH191-4 选育 及我国大部分地区，行政辖区达 17 个省市和自治 区，至2015 年我国桉树种植面积已达450 万hm2[1] ， 1.1 亲本来源 目前造林使用的桉树良种数量较少，导致林分结构 母本是广西东门林场从印度尼西亚，海拔 515 单一，遗传多样性单一，生态系统功能和生物多样 m 的弗洛雷斯岛引进的尾叶桉(E.urophylla) 纯种 性不