Dimensione degli acini e caratteristiche qualitative della cv Syrah

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Abstract

[automatically translated] Have been studied as part of the natural variability found in a vineyard of cv Syrah, the effects of the size of the grapes and exposure of the bunches on the berry components and the quality of the grape. From both sides of the canopy (east and west) were weighed the 45 bunches grapes divided into three replicates to determine four classes of different weights (1 less than or equal to 1.5 g; 2. between 1.51 and 2.00 g; 3. between 2.01 and 2.50 g; 4. greater than 2.50 g). Peel the weight / weight ratio berry is not changed with increasing the size of the berries, while the weight ratio is varied seeds / berry weight. The total anthocyanins were determined via photometric, the anthocyanin profile (malvidin 3-glucoside, malvidin 3-glucoside acetate, malvidin 3-glucoside pcumarata) HPLC / DAD. For total anthocyanins were obtained different results if expressed in mg / berry or in mg / g of skin, or in mg / kg of grapes or mg / cm2 of skin). The amount of total anthocyanins increased with the increase in the weight class of the berries, when expressed in mg / berry while remained unchanged, if expressed in mg / cm2 of the skin. The content, however, decreased with the weight of the berries if expressed in mg / kg of grapes and in mg / g of peel. The anthocyanin content per kg of grapes or per g of peel was positively correlated to the number of acini and the peel surface of the present in a kg of grapes. This research, conducted in an environment and culture condition the higher dimensions are not limiting grapes presented a lower quality and therefore for better control of the quality of grapes,
Original languageItalian
Pages (from-to)512-519
Number of pages8
JournalItalus Hortus
Volume17
Publication statusPublished - 2010

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