首页|3个乌桕种源在广州的早期生长表现

3个乌桕种源在广州的早期生长表现

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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%。
Early Growth Performance of Three Sapium sebiferum Provenances in Guangzhou
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 cor-relation 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.1 6 superior families were screened out by the comprehensive analysis,of which 8,4 and 4 fami-lies came respectively from Hunan,Guangdong and Jiangxi province,with the actual gains of tree height and DBH were 23 .1% and 37 .5%,respectively.

Sapium sebiferumprovenancefamilyseed characteristicsearly growth performance

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510520

广东省广州市石门国家森林公园管理处,广东 广州510976

西南林业大学林学院,云南 昆明650224

乌桕 种源 家系 种子特性 早期生长

广东省广州市林业科技计划项目

2014

林业与环境科学
广东省林学会,广东省林业科学研究院

林业与环境科学

影响因子:0.62
ISSN:1006-4427
年,卷(期):2014.(5)
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