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Abstract

Cores extracted from trees to assess wood chemistry
are generally not used to assess basic density in eucalypt
pulpwood breeding programmes, as the measurement
of basic density requires high temperature drying.
However, both wood chemistry and air-dried density can
be assessed on the same core. This study found that the
inter-trait genetic correlation between core air-dried and
basic density to be effectively equal to one in two Tasmanian
Eucalyptus nitens progeny trials. This implies
that selection for basic density could be undertaken
using air-dried density with little or no reduction in
genetic gain, thus negating the need to extract a separate
core to assess basic density and wood chemistry.
The adoption of this practice could considerably reduce
the cost of assessing these traits in eucalypt breeding
programmes.

Item Type:	Article
Authors/Creators:	Hamilton, MG and Raymond, CA and Potts, BM
Keywords:	Eucalyptus nitens, selection trait, non-destructive assessment, air-dried density, basic density, wood chemistry, pulp yield, cellulose content, near infrared spectroscopy (NIR), genetic correlation.
Journal or Publication Title:	Silvae Genetica
ISSN:	0037-5349
Additional Information:	BM Potts.
Item Statistics:	View statistics for this item

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