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Grapevine varieties exhibiting differences in stomatal response to water deficit
Costa, Joaquim M.; Ortunõ, Maria F.; Lopes, Carlos M.; Chaves, M.M.Abstract. Knowledge on variety traits and physiological responses to stress is still scarce in Vitis vinifera L., limiting the optimisation of irrigation and breeding for high water use efficiency. We have characterised five grapevine varieties using thermal imaging, leaf gas exchange, leaf morphology and carbon isotope composition. Plants of the varieties Aragonez, Trincadeira, Cabernet Sauvignon, Syrah and To...
Impact of irrigation regime on berry development and flavonoids composition in ...
Zarrouk, Olfa; Francisco, Rita; Pinto-Marijuan, Marta; Brossa, Ricardo; Santos, Raquen Raissa; Pinheiro, Carla; Costa, Joaquim M.; Lopes, Carlos M.In the present study, field grown Aragonez (Syn. Tempranillo) grapevines (Vitis vinifera L.) were subjected to three irrigation regimes (conventional sustained deficit irrigation (DI), regulated deficit irrigation (RDI) and non-irrigated (NI)) during two successive seasons (2007–2008). An integrative study was performed in grape berry skin tissues at four phenological stages of grape berry (pea size, véraison, ...
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