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| 黑木相思无性系早期选择 |
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吴清,曾炳山,陈考科,裘珍飞,范春节,康汉华,陈祖旭
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广东省林业厅推广站 广东 广州,中国林业科学研究院热带林业研究所,嘉汉林业广州 有限公司,中国林业科学研究院热带林业研究所,中国林业科学研究院热带林业研究所,嘉汉林业广州 有限公司,中国林业科学研究院热带林业研究所
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| 摘要: |
| 采用“五株优势木”法评选黑木相思（Acacia melanoxylon）优树，采集优树根蘖萌芽条进行扦插和组织培养繁殖无性系试验苗。采用随机区组试验设计，在广东省紫金县苏区镇进行无性系测定，利用黑木相思4 a生的树高、胸径等观测数据进行无性系早期评价，结果表明，18个参试无性系中有12个无性系的树高生长或胸径生长显著优于对照（P＜0.05），可作为与试验点类似条件地区中试推广的无性系。 |
| 关键词: 黑木相思 无性系 早期选择 |
| DOI： |
| 分类号:S722.3 3 |
| 基金项目:嘉汉林业课题“黑木相思无性系选育”(2008—2011) |
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| Early Selection of Acacia melanoxylon Clones |
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Wu qing,Zeng Bingshan,,,, and
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Research Institute of Tropical Forestry Chinese Academy of Forestry,,,,,
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| Abstract: |
| This paper deals with the clone selection of Acacia melanoxylo at Suqu town, Zijin county, Guangdong province. Plus trees were selected by the comparison of Five Elite Trees. Clonal seedlings were propagated by cutting and tissue culture, using root sprout of plus trees as materials. The experimental design of clone trial was random block design. Early clone evaluation was based on variation analysis of DBH and tree height at four years old. The results showed that the DBH growth or height growth of twelve clones were significantly bigger than that of the control，and these fine clones would be suitable for further large scale experiments and extension in the region with similar climate as the experiment site. |
| Key words: Acacia melanoxylon clone early selection |
