[1]叶金山,胡伟华,谢青,等.白花泡桐无性系自然接干性状的遗传变异研究[J].西北林学院学报,2008,23(05):74.
 YE Jin shan,HU Wei hua,XIE Qing,et al.Genetic Variation of Natural Stemjoin Characters of Paulownia fortunei Clones[J].JOURNAL OF NORTHWEST FORESTRY UNIVERSITY,2008,23(05):74.
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白花泡桐无性系自然接干性状的遗传变异研究()
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《西北林学院学报》[ISSN:1001-7461/CN:61-1202/S]

卷:
第23卷
期数:
2008年05期
页码:
74
栏目:
林木遗传育种与栽培
出版日期:
2008-09-30

文章信息/Info

Title:
Genetic Variation of Natural Stemjoin Characters of Paulownia fortunei Clones
作者:
叶金山胡伟华谢青孟伟杨文萍
国家林业局 泡桐研究开发中心, 河南 郑州 450003
Author(s):
YE JinshanHU WeihuaXIE QingMENG WeiYANG Wenping
Research and Development Center of State Forestry Administration,Zhengzhou , Henan 450003 , China
关键词:
白花泡桐无性系自然接干性状遗传变异
Keywords:
Paulownia fortunei clone natural stemjoin character
文献标志码:
A
摘要:
利用田间试验和统计分析的方法,研究了白花泡桐无性系自然接干性状的遗传变异规律。结果表明:(1)有8个自然接干性状(接干高、主干材积、接干材积、全干材积、接干材积/全干材积、主干平均削度、通直度、丛枝病等级)属于高度变异型(CV≥30);有8个自然接干性状(主干高、全干高、主干1/2径、主干端径、接干1/2径、主干材积/全干材积、接干形数、冠幅)属于中度变异型(15≤CV<30);有6个自然接干性状(树高、胸径、主干基径、主干形数、主干形率、接干形率)属于低度变异型(CV<15)。(2)接干高性状在影响和决定白花泡桐无性系自然接干性状的总体表现上起着重要作用,而通直度性状在白花泡桐自然接干性状的遗传改良中起着关键作用。。。
Abstract:
The genetic variation of natural stemjoin characters of Paulownia fortunei clones was studied by means of field test and statistical analysis. The results were as follows: (1) Eight natural stemjoin characters, which were height of stemjoin, volume of main stem, volume of stemjoin, volume of wholestem, stemjoin volume / wholestem volume, average taper of main stem, straightness of stem and witches’broom grade, fell into the high grade variation type (coefficient of variation ≥ 30). Eight natural stemjoin characters, which were height of main stem, height of wholestem, diameter at half main stem height, diameter at top end of main stem, diameter at half stemjoin height, main stem volume / wholestem volume, stemjoin formfactor and crown breadth, fell into the middle grade variation type (15≤coefficient of variation<30). Six natural stemjoin characters, which were height of tree, diameter breasthigh, diameter at foot, main stem formfactor, main stem formquotient and stemjoin formquotient, fell into the low grade variation type (coefficient of variation<15). (2) Height of stemjoin played an important role in affecting and determining total display of natural stemjoin characters of P.fortunei clones. Straightness of stem played a key role in genetic improvement of natural stemjoin characters of P.fortunei. ...

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