O 21º Encontro Internacional GiESCO (Grupo de Peritos Internacionais para Cooperação em Sistemas Vitivinícolas) realizado Thessaloniki, Grécia. O Encontro cobrirá os principais campos de pesquisa e inovação em viticultura com foco na videira, gestão de vinhedos, qualidade da uva e do vinho e produção sustentável. Este é um encontro internacional bianual, considerado o principal evento científico da área da Viticultura. O norte da Grécia hospeda numerosas castas indígenas e internacionais sob diversas condições de solo, clima e topografia, oferecendo uma variedade de terroirs e estilos de vinho. Além disso, o norte da Grécia tem sido uma área líder em inovação na gestão vitícola na Grécia.
A Instituição Organizadora do 21º Encontro Internacional GiESCO se encontra na Escola de Agricultura da Universidade Aristóteles de Salónica (AUT). Foi fundada em 1925 e hoje é amplamente reconhecida como um importante centro de educação e pesquisa, seguindo uma longa tradição de realizações acadêmicas. Entre os dias 23 a 30 de junho 2019, o Docente Dr. Juan Saavedra Del Aguila do curso Bacharelado em Enologia da Universidade Federal do Pampa (Unipampa), Campus Dom Pedrito - RS. Participando do 21° Encontro Internacional GiESCO, representado o grupo de Núcleo de Estudos, Pesquisa e Extensão em Enologia (NEPE²). Confira a seguir alguns dos trabalhos apresentados pelo professor Juan Saavedra del Aguila no 21° GiESCO, Grécia:
Three foliar fertilizers in “Merlot” seedlings
Andreza Santana AFONSO¹, Luciele SEIXA¹, Alice Farias MAIA¹, Gabriela Victoria JARDIIM¹, Lília Sichmann HEIFFIG-DEL AGUILA², Juan SAAVEDRA DEL AGUILA¹.
University Federal of Pampa (UNIPAMPA), Dom Pedrito Campus, Rua Vinte e Um Abril, 80, Cep 96450-000, Dom Pedrito, Rio Grande do Sul (RS), Brazil
²Temperate Climate Embrapa, Pelotas, RS, Brazil
*Corresponding author: juanaguila@unipampa.edu.br
SOME VEGETABLE REGULATORS IN POST-HARVEST 'ITALY' GRAPE
Joselen Lemos Silva da SILVA¹, Alice Farias MAIA ¹, Bruna Laís HAMM¹, Thainá Silveira DALLASTA¹ , Wellynthon Machado da CUNHA¹ , Juan SAAVEDRA DEL AGUILA ¹
University Federal of Pampa (UNIPAMPA), Cep 96450-000, Dom Pedrito, Rio Grande do Sul (RS), Brazil *Corresponding author: juanaguila@unipampa.edu.br
Abstract
Contex and purpose of this study – The grape is a fruit that must be harvested when ripe, since it is considered of non-climacteric respiratory pattern, which does not ripen after being harvested. The fruit after harvesting has been observed differently in recent years due to the increase in consumption, mainly aimed at quality, which is one of the most demanded by consumers when acquiring the product in the market. The 'Italy' grape is the main fine variety of table produced in Brazil, because it is the taste of Brazilian consumers. In this sense, the objective of the work was to evaluate the use of some plant regulators in the post-harvest of 'Italia' fine table grape. Material and methods - The study was carried out by the Nucleus of Study, Research and Extension in Enology (NEPE²), of the Bachelor's Degree in Oenology of UNIPAMPA. The grapes were purchased from a commercial vineyard, located in the city of Caçapava do Sul, RS, Brazil. The treatments were: Treatment 1: Control (distilled water); Treatment 2: 1000 ppm salicylic acid; Treatment 3: 1000 ppb of 1methylcyclopropene (1-MCP); Treatment 4: 1000 ppm of gibberellic acid and; Treatment 5: 1000 ppm Etrhel® (ethylene). The experiment consisted of 5 treatments and 4 replicates per treatment, with each replicate being approximately 350 g of fruit. The evaluations were performed on day zero (experiment installation) and, after 7 and 14 days of storage of the grapes at 16 °C and ± 70% Relative Humidity (RH); this storage temperature was chosen to simulate the conditions of commercialization of a supermarket. The total soluble solids (TSS) in ºBrix, total titratable acidity (TA) in%, ratio (TSS/TA), fresh mass of the cluster (g), darkening index of the stalk (grades), loss of water of the stink, and exhaustion of the fruits of the clusters. The data were submitted to the Tukey averages comparison test at 5% probability. Results – During the evaluation of the results it was observed that the use of 1-methylcyclopropene (1-MCP) in 'Italy' grape for post-harvest treatment reduced the dehydration speed of the stored bunches for 7 days, thus extending the shelf life of the fruit on the shelf of commerce.
Acknowledgments: We would like to thank “Fundação de Amparo à Pesquisa do Estado do Rio Grande do Sul” (“FAPERGS/Edital 01/2019 – Auxílio para Participação em Eventos – APE”) for the financial support for st participation to the author Juan SAAVEDRA DEL AGUILA, in the 21 GIESCO International Meeting (Group of International Experts for Cooperation on Vitivinicultural Systems): 2019, Thessaloniki, Greece.
We would like to thanks to The company Rohm and Haas Chemical Ltda. the supply of the commercial product Inc. Agrofresh (1-MCP).
Key words: Vitis vinifera L.,Plant Hormones, Plant Development,Viticulture.
INFLUENCE OF 'PINOTAGE' DEFOLIATION ON FRUIT AND WINE QUALITY
Marcelo de Souza SOARES¹, Pedro Paulo PARISOTO¹, Nádia Cristiane Alves VIANNA¹, Bruna Laís HAMM¹ , Daniel Pazzini Eckhardt¹ , ²Lília Sichmann HEIFFIG-DEL AGUILA , Juan SAAVEDRA DEL AGUILA¹*
¹ University Federal of Pampa (UNIPAMPA), Cep 96450-000, Dom Pedrito, RS, Brazil
² Embrapa Temperate Agriculture, Pelotas, RS, Brazil
*Corresponding author: juanaguila@unipampa.edu.br
Abstract
Contex and purpose of this study - Among the different management techniques in Viticulture, which have been developed with the purpose of optimizing the interception of sunlight, the photosynthetic capacity of the plant and the microclimate of the clusters, especially in varieties that show excess vigor, the management of defoliation presents great importance. The defoliation consists of the removal of leaves that cover or that are in direct contact with the curls, which can cause physical damages in the berries, and aims to balance the relation between part area and number of fruits, providing the aeration and insolation in the interior of the vineyard, as well as reduce the incidence of rot in order to achieve greater efficiency in phytosanitary treatments and quality musts. The objective of this work was to evaluate the effect of defoliation on the physical-chemical parameters of grapes, musts and wine from the 'Pinotage' cultivated in Dom Pedrito, Region of “Campanha”, “RS”, Brazil, in a commercial vineyard planted in the East-West direction . Material and methods - The study was carried out by the Nucleus of Study, Research and Extension in Enology (NEPE²), of the Bachelor's Degree in Oenology of UNIPAMPA. The work was carried out in the 2017/18 harvest, with the grapes coming from a commercial vineyard cultivated in a simple vineyard, with a height of 1.0m of the first wire to the ground, 0.5m height of the leaf area, spacing of 1.3m between plants and 3.0m between rows, adding 84 plants. Defoliation was carried out in the color change of the berries, being divided into four treatments, each treatment with 21 plants, where T1 Control (no defoliation of the vine); Defoliation to the North; T3 Defoliation to the South and; T4 Defoil South and North. Microvinifications were done with temperature control and five days of maceration. It was evaluated in the must: total soluble solids, density (g L-1), pH, reducing sugars (g L-1), Gluconic Acid (g L-1) and Potassium Content (mg L-1); in the wine the following variables were evaluated: Alcohol (% v/v), Total Acidity (meq L-1), -1 -1 -1 -1 Density at 20ºC, pH, Volatile Acidity (meq L ), Glycerol (g L ), Tartaric Acid (g L ), Malic Acid (g L ), Color Intensity and Tint. The data were submitted to the Tukey averages comparison test at 5% probability. Results – According to the results we can verify that the treatments with defoliation did not influence the quality of the grape must, but the defoliation in the North direction, did decrease the glycerol content of the wine.
Acknowledgments: We would like to thank “Fundação de Amparo à Pesquisa do Estado do Rio Grande do Sul” (“FAPERGS/Edital 01/2019 – Auxílio para Participação em Eventos – APE”) for the financial support for participation to the author Juan SAAVEDRA DEL AGUILA, in the 21st GIESCO International Meeting (Group of International Experts for Cooperation on Vitivinicultural Systems): 2019, Thessaloniki, Greece.
We would like to thanks to the winegrower Mr. Adair Camponogara and the Citropack and Amazon Group.
Key words: Vitis vinifera L.,Carbohydrates, Photosynthesis, Viticulture.
USE OF FOLIAR FERTILIZER IN 'TANNAT' IN DOM PEDRITO REGION, RS - BRAZIL
Viviam Glória OLIVEIRA¹, Tainá Berger dos SANTOS¹, Alice Farias MAIA¹, Aline Farias MAIA¹ , ²Lília Sichmann HEIFFIG–DEL AGUILA , Juan SAAVEDRA DEL AGUILA ¹
¹* University Federal of Pampa (UNIPAMPA), Cep 96450-000, Dom Pedrito, Rio Grande do Sul (RS), Brazil
² Embrapa Temperate Agriculture, Pelotas, RS, Brazil
*Corresponding author: juanaguila@unipampa.edu.br
Abstract
Contex and purpose of this study – Within the nutritional management of vines, a fertilizer may contain one, two or more primary macronutrients, secondary macronutrients, and micronutrients. An obvious advantage of multi-nutrient fertilizers is the labor savings in the application, but it should also be considered that the nutrients will be applied while maintaining the same relationship between their concentrations. The latter advantage, however, is not always obtained for any product. Therefore, in the absence of work in the Dom Pedrito region with the product to be studied, the objective was to test the Biozyme® TF foliar fertilizer in the Tannat cultivar. Material and methods - The study was carried out by the Nucleus of Study, Research and Extension in Enology (NEPE²), of the Bachelor's Degree in Oenology of UNIPAMPA. The experiment was conducted in the 2017/2018 cycle, with cv. Tannat grafted on the rootstock 'SO4', in a private vineyard in the region of Dom Pedrito, RS, four years old, conducted in the double "Guyot" system. Biozyme® TF foliar fertilizer was tested, consisting of: Nitrogen (N) 1%; Potassium oxide (K2O) 5%; Boron (B) 0.08%; Iron (Fe) 0.40%; Manganese (Mn) 0.1%; Sulfur (S) 1%; Zinc (Zn) 2% and Organic Carbon 3.5%. The experiment consisted of 4 treatments, with 2 replicates with 7 seedlings per replicate, totaling 14 vines per treatment, and 56 vines for the whole experiment. The treatments were applied from stage 17, according to the Eichoorn and Lorenz Scale (1977) of the cultivar: T1 = Four applications of distilled water in the whole plant; T2 = An application of mineral fertilizer only in the bunch at the recommended dose (500 mL ha-1); T3 = Two -1 applications biweekly on the whole vine at the recommended dose (500mL ha ) and; T4 = Four -1 applications in whole vine at the recommended dose (500 mL ha ). During the experiment and until the harvest the fruit maturation was followed, through collection of berries in three occasions during the maturation period of the grape; in the harvest the morphological variables of the bunch and the fruit were evaluated and the physical-chemical characterization of the berries. The data were submitted to the Tukey averages comparison test at 5% probability. Results – Under the conditions of the present experiment, the mixed mineral fertilizer tested did not contribute to an improvement in the variables analyzed in the fruit and in the 'Tannat' must.
Acknowledgments: We would like to thank “Fundação de Amparo à Pesquisa do Estado do Rio Grande do Sul” (“FAPERGS/Edital 01/2019 – Auxílio para Participação em Eventos – APE”) for the financial support for participation to the author Juan SAAVEDRA DEL AGUILA, in the 21st GIESCO International Meeting (Group of International Experts for Cooperation on Vitivinicultural Systems): 2019, Thessaloniki, Greece.
We would like to thanks to the winegrower Mr. Adair Camponogara and the Citropack and Amazon Group.
Key words: Vitis vinifera L.,Mineral Nutrition, Viticulture.
VEGETATIVE DOSE HEIGHTS ‘CABERNET SAUVIGNON’ AND ITS INFLUENCE ON FRUIT AND WINE QUALITY
Pedro Paulo PARISOTO¹ , Jansen Moreira SILVEIRA¹ , Nadia Cristiane Alves VIANNA¹, Alice Farias MAIA¹, Marcos GABBARDO¹, César Valmor ROMBALDI², Juan SAAVEDRA DEL AGUILA¹*
¹ University Federal of Pampa (UNIPAMPA), Cep 96450-000, Dom Pedrito, Rio Grande do Sul (RS), Brazil
² Federal University of Pelotas (UFPel), Pelotas, RS, Brazil
*Corresponding author: juanaguila@unipampa.edu.br
Abstract
Contex and purpose of this study – The leaf area is of fundamental importance so that the plant can realize adequate levels of photosynthesis for the accumulation of reserves and to reach a suitable maturation of the berries. In this sense, the objective was to evaluate the effect of different lengths of the stalks from the first support wire, in the must and in the wine of 'Cabernet Sauvignon'. Material and methods - The study was carried out by the Nucleus of Study, Research and Extension in Enology (NEPE²), of the Bachelor's Degree in Oenology of UNIPAMPA. The treatments were separated from the stalks at 60 cm (T1), 80 cm (T2), 100 cm (T3) and 120 cm (T4). The experiment was carried out in a vineyard located in the municipality of Dom Pedrito - RS, Brazil, during the 2015/16 crop, in 'Cabernet Sauvignon' grapevines at the age of 16, grafted on 'SO4' rootstocks and conducted in espalier. The experimental design was completely randomized blocks. The physicochemical analyzes of the must were Total Acidity - TA (g L-1), pH e, Reducing Sugars (g L-1). In the wine it was evaluated: Alcohol (% v/v), TA (g L-1), Volatile Acidity (g L-1), Glycerol (g L-1), Anthocyanin (g L-1), Color Intensity and Total Polyphenol Index (TPI). The data were submitted to the Tukey averages comparison test at 5% probability. Results – Treatment T3 (vegetative canopy height of 100 cm) had the highest TA value (3.1 g L-1). For the pH of the must, it decreased significantly as the canopy height increased. In wine, the alcohol content of the T4 treatment (120 cm) was the one with the highest value. In relation to the amount of anthocyanins, T1 treatment (60 cm) presented a higher amount of anthocyanins, T4 (120 cm), showed a color intensity, and a higher proportion of anthocyanins that give red tonality in the wine (520 nm) than the anthocyanins that give yellow tint in the wine (420 nm), thus the T4 (120 cm) was the treatment that showed the highest intensity of color, whereas the T3 (100 cm) was the one that presented less anthocyanins and color intensity. Preliminarily, it is concluded that maintaining the canopy of different sizes in the vegetative period has a significant influence on the quality of the must and wine of 'Cabernet Sauvignon' cultivated in the region of Dom Pedrito, RS, Brazil.
Key words: Vitis vinifera L.,Carbohydrates, Photosynthesis, Viticulture.
Acknowledgments: We would like to thank “Fundação de Amparo à Pesquisa do Estado do Rio Grande do Sul” (“FAPERGS/Edital 01/2019 – Auxílio para Participação em Eventos – APE”) for the financial support for participation to the author Juan SAAVEDRA DEL AGUILA, in the 21st GIESCO International Meeting (Group of International Experts for Cooperation on Vitivinicultural Systems): 2019, Thessaloniki, Greece.
We would like to thanks to the winegrower Mr. Adair Camponogara and the Citropack and Amazon Group
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