Involvement of berry hormonal content in the response to pre- and post-veraison water deficit in different grapevine (Vitis vinifera L.) cultivars
Version of Record online: 9 JAN 2014
© 2014 Australian Society of Viticulture and Oenology Inc.
Australian Journal of Grape and Wine Research
Volume 20, Issue 2, pages 281–291, June 2014
How to Cite
Niculcea, M., López, J., Sánchez-Díaz, M. and Carmen Antolín, M. (2014), Involvement of berry hormonal content in the response to pre- and post-veraison water deficit in different grapevine (Vitis vinifera L.) cultivars. Australian Journal of Grape and Wine Research, 20: 281–291. doi: 10.1111/ajgw.12064
- Issue online: 23 MAY 2014
- Version of Record online: 9 JAN 2014
- Manuscript Accepted: 1 OCT 2013
- Manuscript Revised: 16 SEP 2013
- Manuscript Received: 27 JUN 2013
- Ministerio de Ciencia e Innovación. Grant Number: MCINN BFU2011-26989
- Asociación de Amigos de la Universidad de Navarra
- abscisic acid;
- deficit irrigation;
- indole-3-acetic acid;
- jasmonic acid;
- nitrogen compounds;
- salicylic acid
Background and Aims
The application of deficit irrigation to grapevines modifies the hormonal status of berries, but little information about the influence of berry hormones on phenological sensitivity to water deficit is available. Therefore, the aim of this research was to assess the involvement of berry hormonal status in fruit composition in response to regulated deficit irrigation applied during different phenological stages in two grapevine cultivars.
Methods and Results
The study was carried out on fruiting cuttings of two cultivars of Vitis vinifera L., Tempranillo and Graciano. Treatments were: (i) early water deficit from fruitset to onset of veraison (early deficit); (ii) late water deficit from onset of veraison to harvest (late deficit); and (iii) plants regularly irrigated (Control). Both early water deficit and late water-deficit strategies modified evolution of indole-3-acetic acid, abscisic acid, salicylic acid and jasmonic acid, which was related to changes in berry size, increases in phenolic substances and accumulation of amines.
Differential sensitivity of Tempranillo and Graciano grapevines to seasonal water stress was mediated, at least in part, by alterations in hormonal status of berries at the time of water stress imposition.
Significance of Study
This study relates interspecific differences in the sensitivity of seasonal water-deficit irrigation to changes in the endogenous hormonal status of berries.