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| 樟树局部种源早期选择研究 |
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蔡燕灵,曾令海,连辉明,何波祥,张谦
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广东省林业科学研究院,广东省林业科学研究院,广东省林业科学研究院,广东省林业科学研究院,广东省林业科学研究院
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| 摘要: |
| 对广东省局部樟树种源开展了苗期试验和造林测定，根据苗期苗高、地径和种源/家系测定林树高、胸径等性状的生长量，分析比较局部种源的生长差异，结果表明樟树种源间1 a生苗高、地径生长量差异极显著，5 a和7 a生的种源间胸径和单株材积生长量在广东省东江林场试验点差异显著。采用多目标决策分析法，分地点对参试种源进行评定和选择，评选出在2个试验点早期生长较快且表现稳定的优良种源2个，分别是粤东和粤西沿海种源。入选种源造林后7 a生的树高、胸径和单株材积生长量的选择增益分别为1.04％～1.63％、3.12％～3.23％和5.75％～6.44％。 |
| 关键词: 樟树 种源 生长性状 早期选择 |
| DOI： |
| 分类号:S755.5 |
| 基金项目:国家林业公益性行业科研专项“珍贵乡土阔叶用材树种樟树良种培育技术研究”（20110400103） |
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| Early Selection of Local Provenance of Cinnamomum camphora in Guangdong Province |
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Cai Yanling,Zeng Linghai,, and
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Guangdong Academy of Forestry,,,
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| Abstract: |
| To select adaptive provenances of Cinnamomum camphorafor Guangdong province, a total of 5 local provenances were collected and planted in Dongjiang Forest Farm and Meinan Forest Farm for progeny test. Two growth traits of the seedlings and three growth traits of the test forest were investigated to accomplish a preliminary comparison and evaluation of the early growth status of C. camphora. One year old seedlings displayed extremely significant difference in height and ground diameter among five provenances. And both five year old and seven yearold trees displayed significant differences in diameter at breast height (DBH) and individual volume on Dongjiang Forest Farm. An evaluation with the multi objective decision analysis method based on testing sites revealed that provenances from the east and the western coastal areas of Guangdong displayed well adaptability in both Heyuan and Meizhou testing sites. The respective gains of height, DBH and individual volume were 1.04％—1.63%, 3.12％—3.23%, and 5.75％—6.44%. Our results laid foundation for a preliminary comparison and evaluation of the early growth status of C. camphora. |
| Key words: Cinnamomum camphora provenance growth traits early selection |
