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Accumulation of the redox forms of ascorbate in Shiraz berries across developmental season 2007-2008. The ratio of reduced ascorbate (Asc) to the oxidised form dehydroascorbate (DHA) is presented, n = 4, SEM bars. The graph is fitted with a Lowess curve (medium). The grey horizontal line indicates the developmental stage where the berry tAsc pool is composed of 50% Asc and 50% DHA. The developmental stage of veraison is indicated by a grey dotted box.
