Evaluation of Important Traits of Different Clones of North-Typed Populus deltoides

[Objective]To select new germplasm for integrative breeding of poplar new varieties for industrial timber with high-yielding,superior quality and outstanding efficient traits. [Method]The comprehensive evaluation and subordinate function were used to analyze and evaluate comprehensively the growth,p...

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Published inForest research (Beijing) Vol. 29; no. 3
Main Authors Ding, Chang-jun, Huang, Qin-jun, Zhang, Bing-yu, Chu, Yan-guang, Zhang, Wei-xi, Su, Xiao-hua
Format Journal Article
LanguageChinese
Published 01.01.2016
Subjects
Populus deltoides
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Summary:[Objective]To select new germplasm for integrative breeding of poplar new varieties for industrial timber with high-yielding,superior quality and outstanding efficient traits. [Method]The comprehensive evaluation and subordinate function were used to analyze and evaluate comprehensively the growth,photosynthetic productivity,water use efficiency( WUE) and nutrient use efficiency( NUE) of North-typed Populus deltoides germplasm resources.[Result]( 1). There were significant or very significant differences in growth,photosynthetic productivity,WUE and NUE among different genotypes in the same provenance and among different provenances.( 2). The traits of North-typed P. deltoides were significantly or very significantly correlated to DBH growth,including total leaf area,leaf number,leaf number growth rate,internode length,respiration rate,N transfer rate,N content in leaf & WUE in the suitable growth period.( 3). According to comprehensive evaluation,8 clones with high growth,8 with high growth and photosyntheti
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ISSN:1001-1498