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Seyve-villard 5276
Seyval blanc (or Seyve-Villard hybrid number 5276winepros.com.au ) is a hybrid wine grape variety used to make white wines. Its vines ripen early, are productive and are suited to fairly cool climates. Seyval blanc is grown mainly in England,winegeeks.coSeyval blanc/ref> the United States east coast (specifically the Finger Lakes region of upstate New York, regions in Ohio and Virginia), in the Pacific Northwest (Oregon), as well as to a lesser extent in Canada. Seyval blanc was created either by Bertille Seyve, or his son-in-law Villard, as a cross of Seibel 5656 and Rayon d'Or (Seibel 4986),Vitis International Variety Catalogue: Seyval accessed on May 31, 2009 and was used to create the hybrid grape ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Veraison
In viticulture, veraison (french: véraison, ) is the onset of the ripening of the grapes. The official definition of ''veraison'' is "change of color of the grape berries". Veraison represents the transition from berry growth to berry ripening, and many changes in berry development occur at veraison. Process Grape berries follow a double sigmoid growth curve. The initial phase of berry growth is a result of cell division and cell expansion. As berry growth of phase I slows this is termed the lag phase. The lag phase is not a physiological growth stage, but an artificial designation between the two growth periods of grape berry development. Post-veraison, fruit acidity decreases due to degradation of malic acid. The degradation of malic acid during ripening makes tartaric acid the predominant acid; grape berries also possess a small amount of citric acid. Tartaric acid accumulates early in phase I of berry growth, while malic acid accumulates at the end of phase I berry gro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
