Achievements in forest tree genetic improvement in Australia and New Zealand 2: Development of Corymbia species and hybrids for plantations in eastern Australia

David J Lee

doi:10.1080/00049158.2007.10676256

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Achievements in forest tree genetic improvement in Australia and New Zealand 2: Development of Corymbia species and hybrids for plantations in eastern Australia

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Achievements in forest tree genetic improvement in Australia and New Zealand 2: Development of Corymbia species and hybrids for plantations in eastern Australia

David J Lee

Australian Forestry, Vol.70(1), pp.11-16

2007

DOI: https://doi.org/10.1080/00049158.2007.10676256

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Abstract

Forestry Sciences

plantations

tree breeding

progeny

hybrids

eucalypts

Corymbia torelliana

Corymbia citriodora

Corybia henryi

Corymbia variegata

Ramularia

Quambalaria piterika

This paper describes the establishment of provenance seedling seed orchards of three spotted gums and cadaga (all species of Corymbia ex Eucalyptus). It also discusses the limitations of growing the spotted gums as pure species including: lack of mass flowering, susceptibility to a fungal shoot blight and low amenability to vegetative propagation. These limitations, together with observation of putative natural hybrids of the spotted gums with cadaga, and the early promise of manipulated hybrids, led to an intensive breeding and testing program. Many hybrid families have significant advantages in growth and tolerance to disease, insects and frost, and can be vegetatively propagated. They also exhibit broad environmental plasticity, allowing the best varieties to be planted across a wider range of sites than the spotted gums, resulting in more land being suitable for plantation development.

Details

Title: Achievements in forest tree genetic improvement in Australia and New Zealand 2: Development of Corymbia species and hybrids for plantations in eastern Australia
Authors: David J Lee (Author) - Department of Primary Industries and Fisheries, Horticulture and Forestry Science
Publication details: Australian Forestry, Vol.70(1), pp.11-16
Publisher: Institute of Foresters of Australia
Date published: 2007
DOI: 10.1080/00049158.2007.10676256
ISSN: 0004-9158
Organisation Unit: Tropical Forests and People Research Centre; University of the Sunshine Coast, Queensland; Forest Industries Research Centre; Forest Research Institute
Language: English
Record Identifier: 99449685802621
Output Type: Journal article

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