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Pruning effect on content of quercetin and catechin in berry skins of cv. Blaufrankisch (Vitis vinifera L.)

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2010
Authors
Beslic, Zoran S.
Todić, Slavica R.
Tešević, Vele
Jadranin, Milka
Novaković, Miroslav
Tesic, Dejan
Article (Published version)
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Abstract
The effect of pruning severity on quercetin and catechin content in berry skins of cv. Blaufrankisch (Vitis vinifera L.) was studied over 3 years. Different crop levels and canopy structures were obtained by retaining 8, 16, and 24 nodes per vine at pruning. Canopy density, which is proportionate to the shoot number per canopy volume, directly affects the intensity of photosynthetically active radiation (PAR). The quercetin content has been shown to be highly dependent on the light exposure of the berries in which it accumulates. An increase in node number linearly decreased skin catechin, and it is suggested that the decrease was caused by increased yield per vine.
Keywords:
Bud load / canopy structure / berry skin / quercetin / catechin
Source:
Turkish Journal of Agriculture and Forestry, 2010, 34, 6, 461-466
Publisher:
  • Tubitak Scientific & Technical Research Council Turkey, Ankara

ISSN: 1300-011X

WoS: 000284387100002

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URI
http://cer.ihtm.bg.ac.rs/handle/123456789/679
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