Now showing items 8-14 of 14

    • 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 ...
    • Identity and parentage of some South American grapevine cultivars present in Argentina. 

      Aliquó, Gustavo; Torres, Rocío; Lacombe, Thierry; Boursiquot, Jean Michel; Laucou, Valérie; Gualpa, José; Fanzone, Martín; Sari, Santiago; Pérez Peña, Jorge; Prieto, Jorge Alejandro (Comité editorial Australian Journal of Grape and Wine Research, 2017-05-03)
      Background and Aims: Based on 19 nuclear simple sequence repeat markers and parental analysis, we aimed to identify and propose the pedigree of different accessions held at the Estación Experimental Agropecuaria Mendoza of the Instituto Nacional de Tecnología Agropecuaria germplasmcollection. The results were compared with data recorded in large, international databases. Methods and Results: We identified 37 different cultivars, of which 18 were original and not previously identified. The parentage analysis showed that European cultivars, such as Muscat of Alexandria, Muscat à Petits Grains, ...
    • 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.
    • SIRGAS en el Contexto del Marco de Referencia Geodésico Global (GGRF): Evolución, Alcances y Perspectivas 

      Cioce, Victor; Martínez, William; Mackern, María Virginia; Pérez Rodino, Roberto; De Freitas, Silvio (2017)
      SIRGAS (Sistema de Referencia Geocéntrico para las Américas) es la Sub-comisión 1.3b de la IAG (International Association of Geodesy) y Grupo de Trabajo del IPGH (Instituto Panamericano de Geografía e Historia), y es el encargado de la densificación y mantenimiento continental del ITRF (International Terrestrial Reference Frame), incorporando en épocas más recientes la tarea de definir y establecer un sistema vertical de referencia basado en alturas elipsoidales como componente geométrica y en números geopotenciales (referidos a un valor W0 global convencional) como componente física. Es ...
    • Terroir and vintage discrimination of Malbec wines based on phenolic composition across multiple sites in Mendoza, Argentina 

      Urvieta, Roy; Jones, Gregory; Buscema, Fernando; Bottini, Rubén; Fontana, Ariel (Scientifics Reports Editorial, 2021-02-03)
      This study evaluated the phenolic profiles of Malbec wines made from grapes of 23 parcels distributed in 12 geographical indications (GIs) from Mendoza, Argentina. Wines were elaborated under standardized winemaking conditions over three consecutive vintages (2016–2018). Data discriminated wines from different GIs and parcels, based on an integrative data analysis by chemometric tools. Vintage effect and specific phenolic compounds were associated with some GIs or parcels. As well, regional climate conditions allowed partial discrimination of the GIs (and also some parcels). A random forest ...
    • Tropospheric Products from High-Level GNSS Processing in Latin America 

      Mackern, María Virginia; Mateo, María Laura; Camisay, María Fernanda; Morichetti, Paola Vanina (Editorial International Association of Geodesy Symposia, 2020-07-25)
      The present geodetic reference frame in Latin America and the Caribbean is given by a network of about 400 continuously operating GNSS stations. These stations are routinely processed by ten Analysis Centres following the guidelines and standards set up by the International Earth Rotation and Reference Systems Service (IERS) and International GNSS Service (IGS). The Analysis Centres estimate daily and weekly station positions and station zenith tropospheric path delays (ZTD) with an hourly sampling rate. This contribution presents some attempts aiming at combining the individual ZTD ...
    • Varietalidad y etiquetado: porcentaje mínimo de cortes de vinos 

      Murgo, Marcelo; Coria, Carolina; Ortiz, Hugo; Videla, Rodolfo; Malanuik, Mario; Prieto, Sebastián; Aruani, Carla (Comité editorial BIO Web of Conferences, 2019-02-19)
      Se evaluaron 95 vinos experimentales, cosecha 2016, tanto en su estado puro (100%) como a distintos porcentajes de combinación (90; 85; 80; 75; 60%), con el fin determinar el porcentaje mínimo de una variedad que debe tenerse en cuenta en un corte de vino etiquetado como “variedad única”. Los respectivos cortes de las variedades bajo estudio (Malbec, Cabernet Sauvignon, Bonarda, Syrah, Merlot, Tempranillo, y Aspirant Bouchet) fueron supeditados al Análisis Descriptivo Cualitativo (se evaluaron 6 atributos olfativos/gustativos), y al Análisis Discriminativo Comparativo (2 repeticiones y 14 ...