Canopy microclimate and berry composition: the effect of bunch exposure on the phenolic composition of Vitis vinifera L. cv. Shiraz grape berries

Haselgrove, L., Botting, D., van Heeswijck, R., Høj P. B., Dry, P. R., Ford, C. and Iland, P. G. (2000) Canopy microclimate and berry composition: the effect of bunch exposure on the phenolic composition of Vitis vinifera L. cv. Shiraz grape berries. Australian Journal of Grape and Wine Research, 6 2: 141-149.

Author Haselgrove, L.
Botting, D.
van Heeswijck, R.
Høj P. B.
Dry, P. R.
Ford, C.
Iland, P. G.
Title Canopy microclimate and berry composition: the effect of bunch exposure on the phenolic composition of Vitis vinifera L. cv. Shiraz grape berries
Formatted title
 Canopy microclimate and berry composition: the effect of bunch exposure on the phenolic composition of Vitis vinifera L. cv. Shiraz grape berries
Journal name Australian Journal of Grape and Wine Research   Check publisher's open access policy
ISSN 1322-7130
1755-0238
Publication date 2000-01-01
Sub-type Article (original research)
Open Access Status Not yet assessed
Volume 6
Issue 2
Start page 141
End page 149
Total pages 9
Place of publication Richmond, VIC, Australia
Publisher Wiley-Blackwell
Language eng
Abstract Studies on the effect of light exposure on specific phenolic compounds of berries from Shiraz vines grown in a hot climate are reported. Berries that had developed on bunches receiving high levels of ambient light generally had the highest relative levels of quercetin-3-glucoside and a lower proportion of their malvidin anthocyanins as the coumarate derivative, compared to berries that had developed on bunches in shaded canopy conditions. The response of total anthocyanin levels to treatment conditions was variable and depended on the degree of bunch shading and the resultant berry temperature. It appears that a high degree of bunch exposure in hot climates is not conducive to optimal anthocyanin accumulation in berries. The interactive effects of light and temperature on berry phenolic content and concentration are discussed.
Keyword Anthocyanins
Bunch exposure
Grape berry
Light
Phenolics
Quercetin-3-glucoside
Temperature
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Non-UQ

Document type: Journal Article
Sub-type: Article (original research)
Collection: Office of the Vice-Chancellor
 
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Created: Tue, 27 Aug 2013, 21:05:34 EST by Anthony Yeates on behalf of Office of the Vice-Chancellor