Radial Variations of Anatomical Characteristics and Specific gravity in Eucalyptus Camaldulensis Clones

Veenin, Teera; Fujita, Masaya; Naito, Toyohiro; Siripatanadilok, Somkid

doi:10.1163/22941932-90000120

Cited by 27 publications

(26 citation statements)

References 2 publications

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“…However, an observation on increasing fibre width in wood of seed-originated 45-year-old downy birch to more than 28 μm also exists (Bhat 1980). The difference observed here, regarding fibre width of seed-and sprout-originated downy birches, is also consistent with observations of some eucalypts (Veenin et al 2005). The fibres were slightly wider in relation to the length in sprout-originated than in seed-originated trunks, the length increasing more than the width.…”

Section: Discussionsupporting

confidence: 91%

“…In sprout-originated birches the slowing down of fibre lengthening occurred coincidently with the fibre width reaching its maximum. The comparable phenomena have been associated with changes leading to wood maturation (Ridoutt and Sands 1993, Bonham and Barnett 2001, Veenin et al 2005. Thus, the commencement of wood maturation may vary depending not only on species but also on the origin of the stem.…”

Section: Discussionmentioning

confidence: 88%

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Effect of regeneration method on growth, wood density and fibre properties of downy birch (Betula pubescens Ehrh.)

Luostarinen¹,

Huotari²,

Tillman-Sutela³

2009

Silva Fenn.

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Short rotation tree stands, established by coppicing, are nowadays used mainly for energy purposes in Fennoscandia, but their usage for pulp raw material may increase in the future. Downy birch (Betula pubescens), which is commonly used for pulp production in boreal zone, has good sprouting capacity. However, it is not known if the fibre properties of sproutoriginated downy birches differ from those of seed-originated ones. Therefore, fibre length and width of sprout-and seed-originated downy birches grown on fertile soil were measured at a stand age of 25 years. Additionally annual ring width, stem height and diameter, and wood density were studied to compare the growth and wood properties of sprout-and seedoriginated birches. Annual rings were slightly wider in sprout-than in seed-originated birches, whereas no differences were observed in wood density. Fibres, too, were slightly longer and wider in sprout-than in seed-originated trees. Still these minor differences observed here are hardly significant for the industries using birch wood. Consequently downy birch wood from coppiced stands is well suited for pulp. The advantages of coppice, i.e. rapidity and low costs of establishment, productivity, and the ability of downy birch to grow on untypical forest sites, may even increase the importance of the wood coming from coppiced birch stands in the future.

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Section: Discussionsupporting

confidence: 91%

Section: Discussionmentioning

confidence: 88%

Effect of regeneration method on growth, wood density and fibre properties of downy birch (Betula pubescens Ehrh.)

Luostarinen¹,

Huotari²,

Tillman-Sutela³

2009

Silva Fenn.

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“…6c) showed that vessel size depended on the position within the stem. A similar pattern was observed in Eucalyptus camaldulensis, wherein vessel size increased from the pith to the bark side [29]. In all provenances that we examined, vessel lumen area (%) and the diameter of vessels ranged from 8.4 to 10.0% and 115 to 129 lm in the juvenile, and from 13.8 to 17.1% and 146 to 155 lm in the mature wood, respectively (Table 2).…”

Section: Anatomical Characteristics Of Woodsupporting

confidence: 78%

Radial variations in the anatomical characteristics and density of the wood of Acacia mangium of five different provenances in Indonesia

et al. 2011

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The anatomical characteristics and density of wood were examined in 23-year-old Acacia mangium trees that had been planted in Yogyakarta, Indonesia. The seeds had been collected from trees of five different provenances. The distance from the pith of the boundary between juvenile and mature wood was also examined to clarify the maturity of the wood. Lengths of wood fibers near the pith and the distance from the pith of the boundary between juvenile and mature wood differed significantly among provenances. By contrast, other anatomical characteristics of the wood such as fiber wall area, fiber wall thickness, fiber diameter, vessel lumen area, vessel diameter, vessel frequency and wood density did not differ significantly among provenances. Wood density was strongly correlated with the area of fiber walls. Our observations suggest that Sidei and Daintree might be more appropriate provenances among those examined for the Acacia mangium treebreeding programs in Indonesia that are aimed at improving wood quality, because these provenances are associated with longer initial wood fibers and narrower juvenile areas than the other provenances studied.

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“…Wood element's dimensions were also non-significantly varied in L-34 clone of P. deltoides form bottom to top and pith to outwards (Gautam 2010). It showed no age impact on the dimensions of wood elements and regulating mostly homogeneous wood properties within the ramet (Pande 2005;Pande & Singh 2009;Veenin et al 2005). The same result is also true in the present study.…”

Section: Resultssupporting

confidence: 87%

Performance and variability patterns in wood properties and growth traits in the parents, F1 and F2 generation hybrid clones of Populus deltoides

Pande

Dhiman²

2011

Journal of Forestry Research

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The performance and variability patterns in the wood element's dimensions, specific gravity and growth parameters namely ramet height and GBH were evaluated in 16 clones of parents, F1 and F2 hybrids of Populus deltoides Bartr. ex Marsh. Ramet radial variations were non-significant, while inter-clonal variations due to interaction of clone/replication were significant for all the wood traits except vessel element length. Inter-clonal variations were significant only for fiber length and fiber wall thickness. Fiber length and specific gravity were significantly higher in female, while wall thickness and vessel element length were higher in male clones. Female parents (G48 and S7C8) showed higher fiber length and specific gravity than of the male parent (G3), while vessel diameter and wall thickness were higher in male parent (G3). There is not much difference in fiber length and vessel element's dimensions among the parents, F1 and F2 generation hybrid clones. Specific gravity did not showed any trend for parents, F1 and F2 generations. Generally female clones showed higher growth rate. Broad sense heritability for wood traits ranged from 0.143 (fiber length) to 0.505 (fiber wall thickness), while for growth traits it was 0.374 (GBH) and 0.418 (height). Genetic gain for all the wood and growth traits was positive for most of the wood traits. The highly divergent male clone (78) and female clones (S7C8, G48, W/A 49) in number of combinations could be used for developing new hybrids of desired wood traits to develop new clones.

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Radial Variations of Anatomical Characteristics and Specific gravity in Eucalyptus Camaldulensis Clones

Cited by 27 publications

References 2 publications

Effect of regeneration method on growth, wood density and fibre properties of downy birch (Betula pubescens Ehrh.)

Effect of regeneration method on growth, wood density and fibre properties of downy birch (Betula pubescens Ehrh.)

Radial variations in the anatomical characteristics and density of the wood of Acacia mangium of five different provenances in Indonesia

Performance and variability patterns in wood properties and growth traits in the parents, F1 and F2 generation hybrid clones of Populus deltoides

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