Please use this identifier to cite or link to this item: https://hdl.handle.net/1959.11/8221
Title: The production of flowers, fruit and leafy shoots in pruned macadamia trees
Contributor(s): Olesen, Trevor David  (author); Huett, D (author); Smith, G (author)
Publication Date: 2011
DOI: 10.1071/FP11011
Handle Link: https://hdl.handle.net/1959.11/8221
Abstract: For 'Macadamia integrifolia' Maiden and Betche var. 849, we compared four limb removal strategies of varying style and severity over 4 years, in terms of effects on yield, on the distribution of light, and new vegetative shoots, racemes and fruit within the canopy. Limb removal reduced yields. The reduction corresponded with the severity of pruning, not with the style of pruning. Limb removal had little impact in the medium term on light penetration to the orchard floor. Within the canopy, shoot production and raceme production were inversely related. Shoot production was favoured by high light conditions; raceme production occurred predominantly in areas of heavy shade, with 49% of racemes produced at canopy locations receiving less than 2% full daylight, and 94% produced at locations receiving less than 16% full daylight. Most flowering appeared to occur on wood more than 3 years old. The capacity of different parts of the canopy to support fruit set and retention increased with proximity to the more irradiated parts of the canopy, but fruit production was still high deep within the lower part of the canopy, with 50% of fruit produced at canopy locations receiving less than 2% full daylight, and 90% produced at locations receiving less than 16% full daylight.
Publication Type: Journal Article
Source of Publication: Functional Plant Biology, 38(4), p. 327-336
Publisher: CSIRO Publishing
Place of Publication: Australia
ISSN: 1445-4408
1445-4416
Field of Research (FOR): 060703 Plant Developmental and Reproductive Biology
Socio-Economic Outcome Codes: 820206 Macadamias
Peer Reviewed: Yes
HERDC Category Description: C1 Refereed Article in a Scholarly Journal
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