Effects on grape and wine quality of bunch thinning of Merlot under Queensland conditions. Final report

Kennedy, Ursula and Learmonth, Robert and Hassall, Tony (2009) Effects on grape and wine quality of bunch thinning of Merlot under Queensland conditions. Final report. Project Report. Grape and Wine Research and Development Corporation , Adelaide, Australia. [Report]

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Merlot is a major wine grape variety in Queensland, and is commonly crop-thinned locally due to potentially high cropping. Timing of crop thinning has been shown to influence quality. We investigated pea size and veraison crop thinning effects on Merlot yield and quality in the Granite Belt and South Burnett in 2008. Under seasonal conditions experienced, crop thinning did not bring about increased fruit quality. In fact, thinning at pea size may decrease quality. Thinning caused super-optimal leaf area/yield ratios, suggesting under-cropping. As crop thinning may not enhance quality, we recommend thinning only if crop loads are exceptionally high.

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Item Type: Report (Project Report)
Item Status: Live Archive
Additional Information: This publication is copyright. It may be reproduced in whole or in part for the purposes of study, research, or review, but is subject to the inclusion of an acknowledgment of the source. Project Number: RT 06/05-2.
Faculty/School / Institute/Centre: Historic - Faculty of Sciences - Department of Biological and Physical Sciences
Date Deposited: 18 Nov 2014 23:44
Last Modified: 20 Nov 2014 05:21
Uncontrolled Keywords: grapevine; Merlot; crop-thinning; grape wine quality; vine-balance
Fields of Research : 07 Agricultural and Veterinary Sciences > 0701 Agriculture, Land and Farm Management > 070107 Farming Systems Research
07 Agricultural and Veterinary Sciences > 0706 Horticultural Production > 070604 Oenology and Viticulture
06 Biological Sciences > 0607 Plant Biology > 060703 Plant Developmental and Reproductive Biology
Socio-Economic Objective: B Economic Development > 82 Plant Production and Plant Primary Products > 8202 Horticultural Crops > 820299 Horticultural Crops not elsewhere classified
URI: http://eprints.usq.edu.au/id/eprint/20774

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