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Effects of copper-calcium sprays on fruit cracking in sweet cherry (Prunus avium)


Brown, GR and Wilson, S and Boucher, W and Graham, B and McGlason, B, Effects of copper-calcium sprays on fruit cracking in sweet cherry (Prunus avium), Scientia Horticulturae, 62, (1-2) pp. 75-80. ISSN 0304-4238 (1995) [Refereed Article]

DOI: doi:10.1016/0304-4238(94)00746-3


An effective and potentially commercial reduction of cracking in sweet cherries is reported from experiments conducted on five sites over three seasons. The treatment, Cu(OH)2 at 200 g per 1001 plus Ca(OH)2 at 3 kg per 1001 applied at 3 and 6 weeks after full bloom, resulted in a significant and consistent reduction in the proportion of cracked fruit from susceptible cultivars after moderate crack-inducing rainfall. On the three sites where rain-induced cracking occurred, calcium hydroxide was ineffective but copper hydroxide alone, at a low concentration or in combination with calcium hydroxide, significantly reduced fruit cracking. On the remaining two sites cracking of immersed fruit confirmed the field results. The increase in number of intact fruit for the copper hydroxide-calcium hydroxide mixture ranged from 27 to 36% in trials where rain-induced fruit cracking occurred. The treatments were ineffective in controlling cracking during an extended rain period of 12 days. © 1995.

Item Details

Item Type:Refereed Article
Research Division:Agricultural, Veterinary and Food Sciences
Research Group:Horticultural production
Research Field:Horticultural crop improvement (incl. selection and breeding)
Objective Division:Plant Production and Plant Primary Products
Objective Group:Horticultural crops
Objective Field:Horticultural crops not elsewhere classified
UTAS Author:Brown, GR (Mr Gordon Brown)
ID Code:3669
Year Published:1995
Web of Science® Times Cited:31
Deposited By:Agricultural Science
Deposited On:1995-08-01
Last Modified:2011-08-22

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