Browsing Ciencias Ambientales, Agroindustrias y de la Tierra by Author "Piccoli, Patricia"

Now showing items 1-3 of 3

    • Abscisic Acid’s Role in the Modulation of Compounds that Contribute to Wine Quality 

      Alonso, Rodrigo; Berli, Federico; Fontana, Ariel; Piccoli, Patricia; Bottini, Rubén (Comité Editorial Plants Journal, 2021-05-08)
      Abscisic acid (ABA) plays a crucial role in the plant responses to environmental signals, in particular by triggering secondary metabolism. High-altitude vineyards in Mendoza, Argentina, are exposed to elevated solar ultraviolet-B (UV-B) levels and moderate water deficits (WD), thus producing grapevine berries with high enological quality for red winemaking. Volatile organic compounds (VOCs) and phenolic compounds (PCs) accumulate in the berry skins, possess antioxidant activity, and are important attributes for red wine. The aim of the present study was to analyze the role of ABA in the ...

    • Girdling of shoots at flowering reduces shatter in grapevine cv. Malbec. 

      Carrillo, Natalia; Piccoli, Patricia; Bottini, Rubén; Rodríguez, José; Berli, Federico (Comité editorial Australian Journal of Grape and Wine Research, 2020-02-17)
      Background and Aims Some grapevine cultivars such as Malbec have unstable yield, due to poor fruitset or fruitlet abscission. The phenomenon is known as ‘shatter’ and this study aims to explore the potential of applying the shoot girdling technique at flowering, to direct the carbohydrate partitioning towards inflorescences and reduce shatter. Methods and Results Fruitful Malbec shoots were girdled above the apical bunch, below the basal bunch, double girdled or not girdled (Control) during 2017 and 2018. Most vegetative growth parameters were unaffected, but shoots widened and the leaf ...

    • Nitric oxide and abscisic acid regulate osmoprotective and antioxidative mechanisms related to water stress tolerance of grapevines 

      Pontin, Mariela; Murcia, Germán; Bottini, Rubén; Piccoli, Patricia; Fontana, Ariel; Bolcalto, Leonardo (Comité editorial Australian Journal of Grape and Wine Research, 2021-03-22)
      Exogenously applied nitric oxide (NO) and abscisic acid (ABA) are known to improve the tolerance of plants to abiotic stress. The effects of NO and ABA applications on physiological and metabolic responses associated with vine protection against water stress were analysed.