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Effects of fruit thinning, pollination and paclobutrazol on fruit set and size of persimmon (Diospyros kaki L.) in subtropical Australia

Citation

George, AP and Nissen, R and Collins, RJ and Rasmussen, TS, Effects of fruit thinning, pollination and paclobutrazol on fruit set and size of persimmon (Diospyros kaki L.) in subtropical Australia, Journal of Horticultural Science, 70, (3) pp. 477-484. ISSN 0022-1589 (1995) [Refereed Article]

DOI: doi:10.1080/14620316.1995.11515318

Abstract

A factorial combination of three cultural factors (± hand-pollination, ± growth retardant, ± fruit thinning) were evaluated for their effects on fruit set and fruit size of ‘Fuyu’ persimmon (Diospyros kaki L.) in subtropical Australia (Lat. 27° S). Treatments were applied to individual shoots on mature seven year old trees. Fruit set of pollinated flowers was high compared with non-pollinated flowers (91% vs. 47%). Pollinated fruit also grew faster at all stages of fruit development and, at harvest, fresh weights were 25% heavier. Palcobutrazol significantly (P < 0.05) increased fruit weight by 7% compared with controls but did not increase fruit set. Irrespective of treatment, fruit weight was not correlated (r < 0.3, n.s.) with shoot length, number of nodes per shoot, fruit nodal position, shoot dry weight, leaf area per shoot, and number of leaves per shoot. Fruit fresh weight was only poorly correlated with shoot base diameter (r = 0.41*). Pollinated fruit had significantly (P < 0.05) higher concentrations of nutrients (N, K, Ca, and Zn).

Item Details

Item Type:Refereed Article
Keywords:Diospyros kaki
Research Division:Agricultural and Veterinary 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
Author:Nissen, R (Mr Robert Nissen)
ID Code:115551
Year Published:1995
Web of Science® Times Cited:12
Deposited By:Tasmanian Institute of Agriculture
Deposited On:2017-03-30
Last Modified:2017-03-30
Downloads:0

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