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Registros recuperados: 5
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Agronomic performance of 'Cabernet Sauvignon' with leaf removal management in a high-altitude region of Southern Brazil PAB
Würz,Douglas André; Brighenti,Alberto Fontanella; Marcon Filho,José Luiz; Allebrandt,Ricardo; Bem,Betina Pereira de; Rufato,Leo; Kretzschmar,Aike Anneliese.
Abstract: The objective of this work was to compare the effect of different times of leaf removal on the vegetative-productive efficiency and on the chemical and physical characteristics of 'Cabernet Sauvignon' clusters in a high-altitude region of the state of Santa Catarina, Brazil. The experiment was conducted in the 2015 and 2016 vintages, in a commercial vineyard, located in the municipality of São Joaquim, in the state of Santa Catarina, at 1,230-m altitude. The treatments consisted of different times leaf removal in the cluster zone, in the following phenological stages: full bloom, buckshot berries, pea-sized berries, veraison, and 15 days after veraison, besides a control without leaf removal. The evaluated variables were subjected to the analysis...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Vitis vinifera; Altitude wines; Early leaf removal; Grape ripening; Vine management.
Ano: 2017 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2017001000869
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Botrytis bunch rot on 'Sauvignon Blanc' grapevine on the Y-trellis and vertical shoot-positioned training systems PAB
Bem,Betina Pereira de; Bogo,Amauri; Allebrandt,Ricardo; Marcon Filho,José Luiz; Würz,Douglas André; Brighenti,Alberto Fontanella; Rufato,Leo.
Abstract: The objective of this work was to evaluate the effect of the Y-trellis (YT) and vertical shoot-positioned (VSP) training systems on the incidence and severity of Botrytis cinerea, on cluster compactness, and total polyphenol (TP) contents of 'Sauvignon Blanc' grapevine in the municipality of São Joaquim, in the state of Santa Catarina, Brazil. Field trials were carried out in a randomized complete block design during the 2013/2014 and 2014/2015 crop seasons, with assessments performed at harvest. The YT system causes a higher incidence and severity of botrytis bunch rot under climatic conditions favorable to the pathogen, as well as greater cluster compactness, than the VSP system, without affecting the content of total polyphenols of 'Sauvignon...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Botrytis cinerea; Vitis vinifera; Polyphenol.
Ano: 2017 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2017000900818
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Effect of shoot topping intensity on 'Cabernet Franc' grapevine maturity in high-altitude region PAB
Würz,Douglas André; Marcon Filho,José Luiz; Brighenti,Alberto Fontanella; Allebrandt,Ricardo; Bem,Betina Pereira de; Magro,Maicon; Rufato,Leo; Kretzschmar,Aike Anneliese.
Abstract: The objective of this work was to evaluate the chemical composition of 'Cabernet Franc' grape subjected to different levels of shoot topping. The experiment was conducted in the 2008 and 2009 vintages, and the levels of shoot topping consisted of: control, without topping; and reductions of 15, 30, and 45% in total leaf area. The effect of shoot topping intensity on the chemical composition of the 'Cabernet Franc' grape berries was observed. A reduction of 26% in the vegetative canopy through a moderate shoot topping increased the total polyphenol index and the anthocyanin content. Shoot topping is a practice that must be carried out with caution, since severe shoot topping, i.e., a reduction greater than 26% of the leaf area, may negatively...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Vitis vinifera; Courdec 3309; Summer pruning; Vegetative growth..
Ano: 2017 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2017001000946
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Pruning methods on the yield performance and oenological potential of 'Nebbiolo' grapevine PAB
Allebrandt,Ricardo; Marcon Filho,José Luiz; Würz,Douglas André; Bem,Betina Pereira de; Kretzschmar,Aike Anneliese; Rufato,Leo.
Abstract: The objective of this work was to evaluate the effect of different pruning methods on the yield performance and on the oenological potential of Vitis vinifera 'Nebbiolo', cultivated in high-altitude regions of Santa Catarina state, Brazil. The work was carried out in a commercial vineyard located in São Joaquim, SC, during the 2011/2012 and 2014/2015 crop seasons. The treatments consisted of four pruning systems: Guyot, Guyot Arch, and Cazenave (cane pruning systems), and cordon spur pruning. Production, vine balance, and grape composition were evaluated. In the cane pruning systems, a mean production of 2.0 kg per plant and Ravaz index below 2 were observed, with no change in the composition of the berries. In spur pruned vines, there was...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Vitis vinifera; Guyot; Guyot Arch; Cazenave; Ravaz index; Viticulture.
Ano: 2017 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2017001101017
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Relationship among Entomosporium severity, defoliation, and vegetative-reproductive variables in pear in Brazil PAB
Bogo,Amauri; Gonçalves,Mayra Juline; Sanhueza,Rosa Maria Valdebenito; Rufato,Leo; Casa,Ricardo Trezzi; Bem,Betina Pereira de; Silva,Fabio Nascimento da.
Abstract: The objective of this work was to evaluate the relationship among Entomosporium severity, defoliation, and vegetative-reproductive variables of three European pear cultivars in Southern Brazil. The Packham’s Triumph, Abate Fetel, and Williams pear cultivars were assessed regarding Entomosporium severity, defoliation, and natural leaf fall every two weeks, from the appearance of the first symptoms at the beginning of January until the end of April, during the 2012/2013 and 2013/2014 crop seasons. The vegetative and reproductive variables were evaluated in July, during the dormant period. Data on Entomosporium severity were integrated over time and converted into the area under the disease progress curve (AUDPC). The coefficient of determination...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Entomosporium mespili; Pyrus communis; Area under the disease progress curve; Natural leaf fall.
Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2018000800892
Registros recuperados: 5
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