Preliminary evaluation of macadamia rootstocks for yield and tree height

Neal, J. M., Kelly, A., Hardner, C. M., McConchie, C. and Topp, B. L. (2016) Preliminary evaluation of macadamia rootstocks for yield and tree height. Acta Horticulturae, 181-187. doi:10.17660/ActaHortic.2016.1109.30

Author Neal, J. M.
Kelly, A.
Hardner, C. M.
McConchie, C.
Topp, B. L.
Title Preliminary evaluation of macadamia rootstocks for yield and tree height
Journal name Acta Horticulturae   Check publisher's open access policy
ISSN 0567-7572
Publication date 2016-01-01
Year available 2016
Sub-type Article (original research)
DOI 10.17660/ActaHortic.2016.1109.30
Open Access Status Not Open Access
Start page 181
End page 187
Total pages 8
Place of publication Leuven, Belgium
Publisher International Society for Horticultural Science
Language eng
Formatted abstract
Rootstock has profound effects on traits such as yield and tree size in various horticultural industries, however relatively little is known about rootstock effects for macadamia. In this study, 12 cultivars were propagated as open-pollinated seedling and clonal rootstocks, and own-rooted cuttings. The same cultivars were also used as scions, and grafted to a subset of rootstocks, then planted at four trial locations. In this preliminary analysis, rootstock accounted for 19% of the variance in yield compared with 72% for scion, and 23% in height compared with 72% for scion. There was no interaction between rootstock and scion for yield, and only a small effect for height. The interaction between rootstock and propagation method (seedling, clonal, own roots) was not significant for height. A small effect was observed for yield, with the own roots treatment producing significantly lower yield than grafted trees for all rootstock cultivars except 'HAES 849'. 'H2' seedling rootstock produced a cumulative yield to age 10 years of 11.1 kg tree-1 compared to the highest yield of 13.6 kg tree-1 for 'Beaumont' clonal rootstocks. 'H2' seedling rootstock produced 4.8 m trees at age 11 years, compared to the smallest grafted tree which was 'HAES 849' seedling at 4.7 m.
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: HERDC Pre-Audit
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Created: Thu, 30 Jun 2016, 22:51:13 EST by Liz Eden on behalf of Qld Alliance for Agriculture and Food Innovation