| 摘要: |
| 根据来自粤北、粤东、粤中、珠江三角洲和潮汕沿海地区的黎蒴半同胞家系子代测定林四年生和五年生树高、胸径等生长性状，分析比较以上5个局部种源的生长差异。方差分析结果表明，4a生时河源东江林场和梅州梅南林场两地点的树高、胸径和单株材积在种源间存在显著差异；5a生时仅梅州试点的胸径和单株材积在种源间存在显著差异。分地点对参试种源进行评定和选择，结果表明粤东种源在两个地点的早期生长较快且表现稳定，而粤中种源在河源试点也表现良好，通过种源早期选择获得的树高、胸径和单株材积的增益分别为1.30～2.28％、2.70～3.57％和5.45～8.35％，对广东省黎蒴局部种源的早期生长作出了初步的比较与评价。 |
| 关键词: 黎蒴 局部种源 早期选择 |
| DOI： |
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| 基金项目:广东省科技厅农业攻关项目“短轮伐期速生乡土阔叶树种黎蒴良种选育”（2008B020300004）等 |
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| Early Selection of Local Provenance of Castanopsis fissa in Guangdong Province |
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Cai Yanling
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| Abstract: |
| To select adaptive provenances of Castanopsis fissa for Guangdong province, a total of 5 local provenances were collected and planted in Dongjiang Forest Farm and Meinan Forest Farm for progeny test. Three major growth traits were investigated to accomplish a preliminary comparison and evaluation of the early growth status of Castanopsis fissa. Four-year-old trees displayed significant differences in height, diameter-at-breast-height (DBH) and individual volume at both sites. Five-year-old trees only showed dramatic variations in DBH and individual volume on Meinan Forest Farm. An evaluation based on testing sites revealed that provenances from the east of Guangdong displayed well adaptability in both Heyuan and Meizhou testing sites, whereas those from the middle of Guangdong were also adapted to Heyuan testing site. The respective gains of height, DBH and individual volume were 1.30-2.28%, 2.70-3.57%, and 5.45-8.35%. Our results laid foundation for a preliminary comparison and evaluation of the early growth status of Castanopsis fissa. |
| Key words: Castanopsis fissa, local provenance, early selection |
