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Growth of triploid and diploid acacia clones in three contrasting environments in Viet Nam


Bon, VP and Harwood, CE and Nghiem, QC and Thinh, HH and Son, DH and Nguyen, VC, Growth of triploid and diploid acacia clones in three contrasting environments in Viet Nam, Australian Forestry, 83, (4) pp. 265-274. ISSN 0004-9158 (2020) [Refereed Article]

Copyright Statement

2020 Institute of Foresters of Australia (IFA).

DOI: doi:10.1080/00049158.2020.1819009


We assessed the growth and adaptability of triploid acacia clones in comparison with commercially planted diploid clones of the same taxa to age three years at three contrasting sites in north, central and south Viet Nam. Application of phosphorus fertiliser at planting gave a growth response only in the trial in central Viet Nam. One triploidAcaciahybrid (Acacia auriculiformisxmangium) clone was constantly the best performer in all sites, achieving mean annual increments at three years of 30.1, 26.6 and 32.1 m(3)ha(-1)in northern, central and southern Viet Nam, respectively. Two other triploid hybrid clones outperformed the diploid controls in southern Viet Nam. A single triploidA. auriculiformisclone and two diploid clones of this species grew much more slowly. TriploidAcaciahybrid clones had a lower incidence ofCorticium salmonicolor(pink disease) andCeratocystisdisease symptoms than did diploid hybrid clones. The wind-firmness of triploidAcaciahybrid clones was comparable with or better than the diploid hybrid clones. Triploid breeding offers a promising new pathway in the development of improvedAcaciaplanting material.

Item Details

Item Type:Refereed Article
Keywords:acaciahybrid, ploidy, growth rate, disease, wind-firmness
Research Division:Agricultural, Veterinary and Food Sciences
Research Group:Forestry sciences
Research Field:Agroforestry
Objective Division:Expanding Knowledge
Objective Group:Expanding knowledge
Objective Field:Expanding knowledge in the environmental sciences
UTAS Author:Harwood, CE (Mr Christopher Harwood)
ID Code:151762
Year Published:2020
Web of Science® Times Cited:3
Deposited By:Plant Science
Deposited On:2022-08-04
Last Modified:2022-09-20

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