Terroir 2008 banner
IVES 9 IVES Conference Series 9 Evaluation of grape and wine quality according to harvest date, in a tropical region in Northeast Brazil

Evaluation of grape and wine quality according to harvest date, in a tropical region in Northeast Brazil


The Northeast region of Brazil is characterized by a semi-arid climate, has produced tropical wines since twenty years ago. The region is located at 09º 09’ South, 40º 22’ West, 365.5 m. In the region it’s possible to harvest grapes for winemaking process two or three times by year, depending of the cultivar. The aim of this study was to evaluate differences between grape and wine characteristics, according to the production seasons. It was evaluated three cultivars recently introduced in the region (‘Alfrocheiro’, ‘Deckrot’ and ‘Tempranillo’), produced in December 2006 and June 2007. The vines were planted in December 2004 in a grid spacing of 3 x 1.5 m, trellis system adopted was pergola, grafted on rootstock IAC-313 (‘Golia’ x Vitis cinerea), and have been irrigated by drippers. Significant differences were found for the grape and wine compositions according to the harvest date. The grapes from the first semester presented low pH and total solid soluble (ºBrix) and high acidity than grapes harvested in the second semester. The wines produced in the first semester had low alcohol and high acidity levels than wines from second semester. Normally, the commercial wines are made by mix between wines produced from different seasons in the year. ‘Tempranillo’ wines presented good quality and could be used by the wineries. It’s necessary to continue studying and determining the influences of the seasons on grape and wine quality, and the responses of new cultivars introduced in the region to allow the production of high quality and typical wines.


Publication date: December 8, 2021

Issue: Terroir 2008

Type : Article



(1) Embrapa Raisin et Vin/Semi- Aride, Centre National de Recherche de la Vigne et du Vin; détaché au Centre de Recherche du Tropique Semi-Aride. BR 428, Km 152 ; Code Postal 56302-970. Petrolina-PE, Brésil. Petrolina-PE-Brasil
(2) Boursier CNPq/ITEP/Embrapa
(3) Embrapa Raisin et Vin, Bento Gonçalves-RS-Brasil
(4) Embrapa Semi-Aride, Petrolina-PE-Brasil

Contact the author


Vitis vinifera L., tropical wines, enology, enological potentiality


IVES Conference Series | Terroir 2008


Related articles…

Physiological and growth reaction of Shiraz/101-14 Mgt to row orientation and soil water status

Advanced knowledge on grapevine row orientation is required to improve establishment, management and outcomes of vineyards on terroirs with different environmental conditions (climate, soil, topography) and in view of a future change to more extreme climatic conditions. The purpose of this study was to determine the combined effect of row orientation, plant water status and ripeness level on the physiological and viticultural reaction of Shiraz/101-14 Mgt.

Effects of mechanical leafing and deficit irrigation on Cabernet Sauvignon grown in warm climate of California

San Joaquin Valley accounts for 40% of wine grape acreage and produces 70% of wine grape in California. Fruit quality is one of most important factors which impact the economical sustainability of farming wine grapes in this region. Due to the recent drought and expected labor cost increase, the wine industry is thrilled to understand how to improve fruit quality while maintaining the yield with less water and labor input. The present study aims to study the interactive effects of mechanical leafing and deficit irrigation on yield and berry compositions of Cabernet Sauvignon grown in warm climate of California.

The effects of cane girdling on berry texture properties and the concentration of some aroma compounds in three table grape cultivars

The marketability of the table grapes is highly influenced by the consumer demand; therefore the market value of the table grapes is mainly characterized by its berry size, colour, taste and texture. Girdling could cause accumulation of several components in plants above the ringing of the phloem including clusters and resulting improved maturity. The aim of the experiments was to examine the effect of girdling on berry texture characteristics and aroma concentration.

Application of a fluorescence-based method to evaluate the ripening process and quality of Pinot Blanc grape

The chemical composition of grape berries at harvest is one of the most important factors that should be considered to produce high quality wines. Among the different chemical classes which characterize the grape juice, the polyphenolic compound, such as flavonoids, contribute to the final taste and color of wines. Recently, an innovative non-destructive method, based on chlorophyll fluorescence, was developed to estimate the phenolic maturity of red grape varieties through the evaluation of anthocyanins accumulated in the berry skin. To date, only few data are available about the application of this method on white grape varieties.

Different yield regulation strategies in semi-minimal-pruned hedge (SMPH) and impact on bunch architecture

Yields in the novel viticulture training system Semi-Minimal-Pruned Hedge (SMPH) are generally higher compared to the traditional Vertical Shoot Positioning (VSP). Excessive yields have a negative impact on the vine and wine quality, which can result in substantial losses in yield in subsequent vintages (alternate bearing) or penalties in fruit quality. Therefore yield regulation is essential. The bunch architecture in SMPH differs from VSP. Generally there is a higher amount but smaller bunches with lower single berry weights in SMPH compared to VSP.