Weight loss from ripening berries of Shiraz grapevines (Vitis vinifera L. cv. Shiraz)

• M.G. McCarthy ^[1]
  1. [1] South Australian Research and Development Institute

     South Australian Research and Development Institute

     Australia

     
• Localización: Australian journal of grape and wine research, ISSN 1322-7130, Vol. 5, Nº 1, 1999, págs. 10-16
• Idioma: inglés
• Texto completo no disponible (Saber más ...)
• Resumen

  • Environmental and phenological correlatives associated with the onset of weight loss during ripening in Vitis vinifera cv. Shiraz berries were examined. An irrigation experiment concerned with transient water deficit effects on berry growth over four consecutive seasons provided source data. Timing of maximum berry weight was more closely correlated with the number of days after flowering than with temperature summation. Prior to maximum berry weight, Brix was more closely correlated with days after flowering than with temperature summation, while the number of days from flowering to 10 and 15Brix was remarkably uniform despite contrasting seasons. Driving variables for weight loss during advanced ripening remain a matter of conjecture, but loss of berry water under highly evaporative conditions of late summer is a likely contributor.