Selection of Corymbia citriodora for pulp productivity

Brawner, J. T., Meder, R., Dieters, M. and Lee, D. J. (2012) Selection of Corymbia citriodora for pulp productivity. Southern Forests, 74 2: 121-131. doi:10.2989/20702620.2012.701418

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Author Brawner, J. T.
Meder, R.
Dieters, M.
Lee, D. J.
Title Selection of Corymbia citriodora for pulp productivity
Journal name Southern Forests   Check publisher's open access policy
ISSN 2070-2620
Publication date 2012-01-01
Year available 2012
Sub-type Article (original research)
DOI 10.2989/20702620.2012.701418
Open Access Status File (Author Post-print)
Volume 74
Issue 2
Start page 121
End page 131
Total pages 11
Place of publication Grahamstown, South Africa
Publisher National Inquiry Services Centre
Language eng
Subject 1107 Immunology
Abstract Evaluation of a series of spotted gum (Corymbia citirodora) progeny trials, established in the subtropical region of Queensland, Australia, was undertaken to provide information for the development of advanced-generation breeding populations suitable for pulp production. Measurements of growth at two ages were combined with assessments of wood density and pulp yield from a selected sample of provenances to provide comparisons between provenances, to generate genetic parameter estimates and to predict genetic gain potential. Although growth at this age was moderate relative to other eucalypts, the near-infrared predictions of average wood density of 756 kg m-3 and pulp yield of 55% indicate the species has considerable potential as a pulpwood crop. A pulp productivity breeding objective was used to identify production populations using a range of selection trait weightings to determine potential genetic gain for pulp productivity. Genetic parameters indicated (1) levels of genetic control were moderate for all traits and higher for wood property traits, (2) genetic improvements could be achieved by selection among and within provenances with greater levels of improvement available from selection within populations, (3) genotype by environment interactions were negligible, (4) genetic correlations between traits were favourable, and (5) selection of volume production alone would maximise improvements in pulp productivity.
Keyword Corymbia citriodora subsp. variegata
Genetic parameters
Index selection
Wood quality
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collection: School of Agriculture and Food Sciences
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Citation counts: TR Web of Science Citation Count  Cited 9 times in Thomson Reuters Web of Science Article | Citations
Scopus Citation Count Cited 12 times in Scopus Article | Citations
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