Cycle, productivity and must chemical characteristics of varieties of white wine grape
2017
Moura Mara Fernandes | Souza Juliana Rocha de | Modesto Lenon Romano | Hernandes José Luiz | Santos Taiane Silva
The objective of this work was to evaluate five varieties of white grapes destined to winemaking, grafted on the two main rootstocks used in viticulture in São Paulo, Brazil, 'IAC 766 Campinas' and 'IAC 572 Jales'. The experiment was performed on the experimental area of Centro APTA de Frutas in the Jundiaí city, São Paulo state, Brazil. The experimental design was a randomized block with split plot with five replications, the plots represented by varieties and subplots by rootstocks. We evaluated the number of days to budding (NDB), number of days to flowering (NDF) and number of days to maturation (NDM), productivity (Prod) (ton.ha−1), content of soluble solids (SS), titratable acidity (TA) and maturation index (MI). There was no difference between rootstocks, and there was interaction among rootstocks and varieties for SS and TA. The varieties did not show significant differences for yield, but there was a significant difference for the other variables. We can concluded that among the assessed varieties on both rootstocks, in Jundiaí / SP, the variety SR 501-17 distinguished itself due to its precocity, productivity and chemical quality of the must.
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