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Control of tree size and vigour in custard apple (Annona spp. hybrid) cv. African Pride in subtropical Australia


George, AP and Nissen, RJ, Control of tree size and vigour in custard apple (Annona spp. hybrid) cv. African Pride in subtropical Australia, Australian Journal of Experimental Agriculture, 42, (4) pp. 503-512. ISSN 0816-1089 (2002) [Refereed Article]

Copyright Statement

Copyright 2002 CSIRO

DOI: doi:10.1071/EA01037


Five methods of controlling tree size, viz. growth retardant (foliar-sprayed and trunk-injected paclobutrazol), root-restriction bags, cherimoya rootstock and sugar apple (Annona squamosa) interstock, were evaluated for their effects on growth, yield and fruit quality of custard apple (Annona spp. hybrid cv. African Pride) in subtropical Australia. Compared with trees on their own roots, sugar apple interstock was highly effective in dwarfing 'African Pride' trees, reducing tree canopy volume by 72-90%. Root-restriction bags (woven fibreglass) proved to be only partially effective in controlling tree size due to growth of major roots through the seams. Compared with trees on their own roots, cherimoya rootstock alone, and sugar apple interstock increased fruit weight per unit canopy volume by a maximum of 3- and 5-fold, respectively. Sugar apple interstock reduced the severity of fruit disorders 'woodiness' and 'brown pulp' by about 75 and 50%, respectively.

Item Details

Item Type:Refereed Article
Keywords:Cherimoya, interstock, paclobutrazol, root restriction, tree growth, agricultural practice, Annona cherimola, Annona squamosa, Malus x domestica
Research Division:Agricultural, Veterinary and Food Sciences
Research Group:Horticultural production
Research Field:Horticultural crop growth and development
Objective Division:Plant Production and Plant Primary Products
Objective Group:Horticultural crops
Objective Field:Horticultural crops not elsewhere classified
UTAS Author:Nissen, RJ (Dr Robert Nissen)
ID Code:115559
Year Published:2002
Web of Science® Times Cited:2
Deposited By:Tasmanian Institute of Agriculture
Deposited On:2017-03-30
Last Modified:2017-04-13

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