Genetic control in the survival, growth and form of Acacia melanoxylon

Bradbury, Gordon J.; Beadle, C. L.; Potts, Brad M.

doi:10.1007/s11056-009-9160-9

Cited by 8 publications

(11 citation statements)

References 15 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…However, the difference between trials was not statistically significant (Table 1). This was also the case when all trees from the 16 seedlots were measured, rather than the smaller sample of larger (≥10 cm diameter) trees used in this study (Bradbury et al 2010a). The differences in stem diameter between seedlots based on the ≥10-cm subsample were significant, but there was no significant trial by seedlot interaction (Table 1).…”

Section: Stem Diameter and Figured Grainmentioning

confidence: 97%

“…Three 18-year-old trials containing 16 open-pollinated Tasmanian blackwood families were selected (Bradbury et al 2010a). One trial was located at Meunna (266/2/2) in north-west Tasmania while two were located at Virginstow in northern Tasmania (Virginstow, 266/4/1 and 266/4/2).…”

Section: Trials and Genetic Materialsmentioning

confidence: 99%

“…Despite apparent variation in many wood properties, little attention has been given to genetic and environmental sources of variation, in spite of their potential effects on blackwood selection, breeding and utilisation. In this study family based progeny grown across three trials reported in Bradbury et al (2010a), were used to assess the extent of genetic and environmental variation and their interactions on wood properties in blackwood.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Genetic and environmental variation in wood properties of Acacia melanoxylon

Bradbury

Potts

Beadle

2011

Annals of Forest Science

Self Cite

View full text Add to dashboard Cite

Section: Stem Diameter and Figured Grainmentioning

confidence: 97%

Section: Trials and Genetic Materialsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Genetic and environmental variation in wood properties of Acacia melanoxylon

Bradbury

Potts

Beadle

2011

Annals of Forest Science

Self Cite

View full text Add to dashboard Cite

“…One trial was located at Meunna (266/2/2), whereas two were located at Virginstow (266/4/1 and 266/4/2) (Allen 1992;Bradbury et al 2010a). The trials were established using a randomised complete block design.…”

Section: Trials and Genetic Materialsmentioning

confidence: 99%

“…The families in the trials were derived from open-pollinated seed collected from around Tasmania in 1988 from trees of superior form (Neilsen and Brown 1996;Bradbury et al 2010a). The 16 families (Table 1) selected for study were the largest sample of families represented across multiple trial sites in Australia (Bradbury and Beadle 2007).…”

Section: Trials and Genetic Materialsmentioning

confidence: 99%

Genetic and environmental variation in heartwood colour of Australian blackwood (Acacia melanoxylon R.Br.)

Bradbury¹,

Potts²,

Beadle³

et al. 2011

Holzforschung

Self Cite

View full text Add to dashboard Cite

Australian blackwood (Acacia melanoxylon R.Br.) is a highquality appearance-grade timber species native to eastern Australia. It is characterised by dark-coloured heartwood, with colour varying from pale straw to red-brown and walnut brown, and pale cream-coloured sapwood. This wide range in heartwood colour is expressed as between-and within-tree variation, and is regarded as a problem in markets where colour consistency is important. To understand the genetic and environmental control of heartwood colour, multiple colour measurements were taken from stem cores from 16 openpollinated family collections of blackwood planted across three 19-year-old progeny trials. Data was analysed with a mixed model with within-tree variation modelled using a three-node cubic spline. Significant genetic, environmental and genetic-by-environment interactions were detected, not only in the variation in between-tree mean heartwood colour but also in the pattern of within-tree heartwood colour variation. In general, heartwood colour became darker, less yellow and more red towards the sapwood/heartwood boundary. To control the between-and within-tree heartwood colour variation in blackwood plantations, care is needed to not only select genotypes with the desired wood colour and colour variation but also site characteristics that allow expression of that colour.

show abstract

Variation of wood density and mechanical properties of blackwood (Acacia melanoxylon R. Br.)

Machado

Lousada

Santos

et al. 2014

Materials & Design (1980-2015)

View full text Add to dashboard Cite

The variation of wood density and mechanical properties with site, tree and within tree (longitudinal and radial) were studied for blackwood (Acacia melanoxylon R. Br.) grown in four sites in Portugal. Twenty trees were randomly selected (40 cm dbh class, 33-51 years of age), sampled at three stem height levels (5%, 35% and 65% of tree height) and three radial positions (10%, 50% and 90% of radius). They were further tested for air-dry density at 12% moisture content, bending strength (MOR), modulus of elasticity (MOE) and compression strength parallel to grain (CS), using ISO standards. The overall mean properties of blackwood were: 654 kg m À3 density, 139 N mm À2 MOR, 141 Â 10 2 N mm À2 MOE and 61 N mm À2 CS. Site was not a significant source of variation for all wood properties. The variation between individual trees was the most important. Within the tree, the radial variation was highly significant for all traits, while the longitudinal variation was only significant for density. The correlation of density with the mechanical properties was moderate. Blackwood showed potential for being an alternative species to supply the industry with valuable hardwood timber. The significant differences found between the trees demonstrate the possibility of selection and improvement for increased wood quality.

show abstract

Genetic control in the survival, growth and form of Acacia melanoxylon

Cited by 8 publications

References 15 publications

Genetic and environmental variation in wood properties of Acacia melanoxylon

Genetic and environmental variation in wood properties of Acacia melanoxylon

Genetic and environmental variation in heartwood colour of Australian blackwood (Acacia melanoxylon R.Br.)

Variation of wood density and mechanical properties of blackwood (Acacia melanoxylon R. Br.)

Contact Info

Product

Resources

About