Production Performance of ‘Malvaisa Bianca’ grape (Vitis vinifera L.) grown in Subtropical Regions
DOI:
https://doi.org/10.5433/1679-0359.2007v28n4p609Keywords:
Phenology, Wine, Viticulture.Abstract
The objective of this study was to assess the phenotypic/phenology and production performance of ‘Malvasiva Bianca’ grape used to make white wine at North of Parana State. The experiment was done in one vineyard located in Maringa, PR, conducted pergola system accounting with an space of 4.0 X 1.5 m enxert about IAC 766 Campinas. Twenty plants were used previously identified and market during two consecutive harvest seasons (2004/2005 and 2005/2006). The phenotipic performance of grape vives was assessed considering duration of time in days of their principal phases. The chemical characteristics of the berries were assessed performing weekly analysis of pH measurements, Total Solutable Solid (TSS), titratable Acidity (AT) and relationship TSS/TA, starting at the biggining of the maturing process until seven days after harvesting. The production characteristics were assessed considering the average diameter and average mass weight of the berry, number on average of clusters per plant, average mass weight of the cluster and estimates of production and productivity on each plant. The duration of production’s cicle (cutting to harvest) in this region was on average 127 days. Due the harvest period, the pH’s average, SST, AT levels and the relationship SST/AT of the berries ranged were 3.6 ; 21.2 °Brix; 0.6% of Tartaric Acid and 36.0 respectively. The berry presented on average 15.5 mm and 2.2g. It was observed on average 62 clusters per plant, with mass weight of 0.3 Kg; production of 20.0 Kg per plant and productivity of 33.3 t/ha. The results showed that the ‘Malvasia Bianca’ grape presents a great potential to be cultivated for further make aromatic white wine at North of Parana State.
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