Variation of cutting rooting ability in cultivated and wild species of Macadamia

Russell, D. M., Neal, J. M., Mayer, R., Bell, D. and Topp, B. L. (2016). Variation of cutting rooting ability in cultivated and wild species of Macadamia. In: Roderick A. Drew, Ian J. Warrington and Luseane Taufa, XXIX International Horticultural Congress on Horticulture: Sustaining Lives, Livelihoods and Landscapes (IHC2014): International Symposium on Nut Crops. XXIX International Horticultural Congress on Horticulture: Sustaining Lives, Livelihoods and Landscapes (IHC2014), Brisbane, Australia, (197-202). 17-22 August 2014. doi:10.17660/ActaHortic.2016.1109.32


Author Russell, D. M.
Neal, J. M.
Mayer, R.
Bell, D.
Topp, B. L.
Title of paper Variation of cutting rooting ability in cultivated and wild species of Macadamia
Formatted title
Variation of cutting rooting ability in cultivated and wild species of Macadamia
Conference name XXIX International Horticultural Congress on Horticulture: Sustaining Lives, Livelihoods and Landscapes (IHC2014)
Conference location Brisbane, Australia
Conference dates 17-22 August 2014
Convener Drew, Roderick A.
Proceedings title XXIX International Horticultural Congress on Horticulture: Sustaining Lives, Livelihoods and Landscapes (IHC2014): International Symposium on Nut Crops   Check publisher's open access policy
Journal name Acta Horticulturae   Check publisher's open access policy
Place of Publication Leuven, Belgium
Publisher International Society for Horticultural Science
Publication Year 2016
Year available 2016
Sub-type Fully published paper
DOI 10.17660/ActaHortic.2016.1109.32
Open Access Status Not Open Access
ISBN 9789462611030
ISSN 0567-7572
2406-6168
Editor Roderick A. Drew
Ian J. Warrington
Luseane Taufa
Volume 1109
Start page 197
End page 202
Total pages 6
Chapter number 32
Total chapters 43
Collection year 2017
Formatted Abstract/Summary
In Australia, macadamia trees are commonly propagated by germinating rootstock seed and grafting when seedlings reach a suitable size. The production of grafted trees is a protracted and complex process, however, propagation of macadamia via cuttings represents a simpler and faster method of multiplication. Macadamias have traditionally proven difficult to propagate from cuttings, and while recent developments in the process have improved success rates, substantial variation in rooting ability between cultivars and species has been reported. The cultivar 'Beaumont' (Macadamia integrifolia × M. tetraphylla) is commonly propagated by cutting for use as a rootstock, and is relatively easy to strike while other cultivars are more difficult. There is speculation that Hawaiian cultivars are more difficult to strike from cuttings than Australian cultivars due to species and genetic composition. In this experiment, cuttings of 32 genotypes were evaluated for rooting ability. Each genotype's species profile was estimated using historical data, and used to determine species effects on survival (percentage) and rooting ability (rating 0-2). M. jansenii (100%), M. tetraphylla (84%) and M. integrifolia/tetraphylla hybrids (79%) had the highest success rates while M. integrifolia (54%) and M. ternifolia (43%) had the lowest survival. Rooting ability of M. jansenii (1.75) was significantly higher than M. ternifolia (0.49) but not significantly higher than M. tetraphylla × M. integrifolia with (1.09), M. tetraphylla (1.03) or M. integrifolia (0.88).
Keyword Macadamia integrifolia
Macadamia tetraphylla
Macadamia jansenii
Macadamia ternifolia
Clonal propagation
Hybrid
Q-Index Code E1
Q-Index Status Provisional Code
Institutional Status UQ

Document type: Conference Paper
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