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| 粤湘赣乌桕家系在广东从化的早期生长表现 |
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朱报著张方秋,李胜强,潘 文,黎土兰,孙恒
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广东省林业科学研究院 广东 广州,广州市石门国家森林公园管理处 广东 从化,广东省林业科学研究院 广东 广州,广东省林业科学研究院 广东 广州,广东省林业科学研究院 广东 广州
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| 摘要: |
| 对来自湖南省望城县、广东省连山县、江西省上犹县的3个乌桕种源进行早期生长研究，结果表明，种子千粒重、苗高、幼林树高和胸径在种源间、家系间均达极显著差异水平，种子千粒重与苗高间，苗高与幼林树高、胸径间均表现为较密切的正相关关系；湖南望城种源的种子千粒重、苗高、幼林树高和胸径均最大；经综合评选，筛选出16个优良家系，其中湖南望城、广东连山、江西上犹种源入选家系个数分别为8，4，4个，优良家系树高和胸径的现实遗传增益分别达到23.1%和37.5% |
| 关键词: 乌桕 种源 家系 种子特性 早期生长 |
| DOI： |
| 分类号:S718.4 |
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| Early Growth Performance of Three Sapium sebiferum Provenances in Guangzhou |
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zhubaozhu,,, and
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| Abstract: |
| The early growth performance of three provenances of Sapium sebiferum from Wangcheng county, Hunan province, Lianshan county, Guangdong province, and Shangyou county, Jiangxi province were studied. The results showed that there were highly significant difference in thousand seed weight, seedling height, tree height and diameter at breast height (DBH) of young forest among either provenances or families. There were positive correlation between the thousand seed weight and seedling height, and also existing among seedling height, tree height and DBH. The provenances from Hunan had the maximum value in thousand seed weight, seedling height, tree height and DBH. 16 superior families were screened out by the comprehensive analysis, of which 8, 4 and 4 families came respectively from Hunan, Guangdong and Jiangxi province, with the actual gains of tree height and DBH were 23.1% and 37.5%, respectively. |
| Key words: Sapium sebiferum provenance family seed characteristics early growth performance |
