Raw Material Quality of Short-Rotation, Intensively Cultured Populus Clones. I. A Comparison of Stem and Branch Properties at Three Spacings

Phelps, John E.; Isebrands, J. G.; Jowett, David Frank

doi:10.1163/22941932-90000839

Cited by 32 publications

(21 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Clonal effects in the joint ANOVA (model 1) were not highly significant (0.01 ă P ă 0.05), possibly because of the presence of a cloneˆsite interaction and the limited number of clones surveyed. Significant clonal genotypic variation in wood density of poplars and their hybrids at certain ages was also reported in previous studies [4,22,26,36,47,51]. However, this is the first study examining changes in genotypic variation of wood properties of poplar hybrids related to age.…”

Section: Age Trends In Clonal Variation and Repeatabilitysupporting

confidence: 79%

Age trends in genotypic variation of wood density and its intra-ring components in young poplar hybrid crosses

et al. 2006

View full text Add to dashboard Cite

-Age related dynamics of genotypic, phenotypic, and environmental variation, clonal repeatability, and genotypic correlations for wood density and its intra-ring components were analyzed in four poplar hybrid crosses, Populus deltoidesˆP. nigra, P. trichocarpaˆP. deltoides, P. maximowicziiˆP. balsamifera, and P. balsamiferaˆP. nigra, as well as P. deltoides. Using X-ray densitometry, measurements were taken on increment cores sampled in four clonal trials at 10 and 12 years of age from ramets of 19 clones. Wood density of all hybrid crosses was highest at the pith and decreased with increasing cambial age. The significance of the hybrid cross effect increased with age for mean wood density, dry fiber weight, and ring width. The coefficient of genotypic variation of cumulated mean wood density was rather stable over the 10-year period at all three sites, and ranged from 4.8-6.8%. Clonal repeatability increased with age from 0.46 to 0.79, mainly because of decreasing random variation. Corresponding genotypic parameters for individual rings varied greatly with age and across sites. Significance of the site effect on wood density tended to decrease with age. Significant negative genotypic correlations between ring width and wood density were found at only two of the four sites and they weakened with age. Age-age genotypic correlations between wood densities at ages 10 and younger were strong and significant from age 6 and over. This trend suggests that selection before this age would be unreliable. poplar hybrids / clones / wood density / radial growth / age trend / genotypic variation / repeatability / genotypic correlation Résumé -Variabilité génotypique inter-annuelle de la densité du bois et de ses composantes intra-cerne chez de jeunes peupliers hybrides. La dynamique inter-annuelle de la variabilité génotypique, phénotypique et environnementale, de la répétabilité clonale et des corrélations génotypiques entre paramètres de densité du bois ont été analysées pour quatre hybrides de peuplier : Populus deltoidesˆP. nigra, P. trichocarpaˆP. deltoides, P. maximowicziiˆP. balsamifera, and P. balsamiferaˆP. nigra, ainsi que pour P. deltoides. Les mesures ont été effectuées par microdensitométrie à rayon X sur des carottes échantillonnées à partir des ramets de 19 clones issus de quatre tests clonaux (âge : 10 et 12 ans). Les résultats montrent que la densité du bois de tous les hybrides est la plus élevée près de la moëlle puis qu'elle diminue avec l'âge cambial. L'effet statistique du type d'hybrides augmente avec l'âge pour la densité moyenne, le poids sec des fibres et la largeur de cernes. Les coefficients de variation génotypique pour la densité moyenne du bois sont stables au cours des 10 ans sur 3 sites et s'élèvent à 4.8-6.8 %. La répétabilité clonale augmente avec l'âge de 0.46 à 0.79. Les paramètres génotypiques pour les caractéristiques individuelles des cernes varient fortement avec l'âge et les sites. Le degré de signification de l'effet site tend à décroître avec l'âge pour la densité du bois. ...

show abstract

Section: Age Trends In Clonal Variation and Repeatabilitysupporting

confidence: 79%

Age trends in genotypic variation of wood density and its intra-ring components in young poplar hybrid crosses

et al. 2006

View full text Add to dashboard Cite

show abstract

“…(Yanchuk et al, 1983) and P. tremula (Kärki, 2001). Higher mean wood density values also have been reported for hybrids involving P. trichocarpa and P. maximowiczii (Murphey et al, 1979), for hybrid poplars from the Aigeiros-Tacamahaca sections (Phelps et al, 1982), and for different poplar hybrids and P. deltoides (Zhang et al, 2003). These differences may be due to the methods of estimation of wood density, the parentage of hybrids involved in the studies (e.g.…”

Section: Variation Among Hybridsmentioning

confidence: 93%

Genotypic variation in wood density and growth traits of poplar hybrids at four clonal trials

Pliūra

Zhang

Mackay

et al. 2007

Forest Ecology and Management

137

101

View full text Add to dashboard Cite

“…Significant inter-tree variation in specific gravity of Dalbergia sissoo was reported by Pande [18] and in Lucanea leucocephala by Pande et al [19]. Similarly, significant differences among the different clones of different species in average fiber length were reported by many a worker [6,8,9,15,17,20]. Interclonal variation in vessel element dimensions in Dalbergia sissoo was reported by Pande and Singh [17]; in Populus deltoides by Chauhan et al [8] and in Tectona grandis by Rao and Shashikala [21].…”

Section: Resultsmentioning

confidence: 74%

“…Variations were significant for the DBH for the clones. Significant differences in average specific gravity of different clones of different species of Populus were reported [6,8]; in Tectona grandis [14] and in Eucalyptus tereticornis Sm. [15,16].…”

Section: Resultsmentioning

confidence: 99%

See 1 more Smart Citation

Variation in Wood Properties and Growth in Some Clones of <i>Populus deltoides</i> Bartr. ex Marsh

Pande¹

2011

AJPS

View full text Add to dashboard Cite

show abstract

Raw Material Quality of Short-Rotation, Intensively Cultured Populus Clones. I. A Comparison of Stem and Branch Properties at Three Spacings

Cited by 32 publications

References 0 publications

Age trends in genotypic variation of wood density and its intra-ring components in young poplar hybrid crosses

Age trends in genotypic variation of wood density and its intra-ring components in young poplar hybrid crosses

Genotypic variation in wood density and growth traits of poplar hybrids at four clonal trials

Variation in Wood Properties and Growth in Some Clones of <i>Populus deltoides</i> Bartr. ex Marsh

Contact Info

Product

Resources

About

Raw Material Quality of Short-Rotation, Intensively Cultured Populus Clones. I. A Comparison of Stem and Branch Properties at Three Spacings

Cited by 32 publications

References 0 publications

Age trends in genotypic variation of wood density and its intra-ring components in young poplar hybrid crosses

Age trends in genotypic variation of wood density and its intra-ring components in young poplar hybrid crosses

Genotypic variation in wood density and growth traits of poplar hybrids at four clonal trials

Variation in Wood Properties and Growth in Some Clones of &lt;i&gt;Populus deltoides&lt;/i&gt; Bartr. ex Marsh

Contact Info

Product

Resources

About

Variation in Wood Properties and Growth in Some Clones of <i>Populus deltoides</i> Bartr. ex Marsh