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Previous issue date: 2010 / Funda??o de Amparo ? Pesquisa do estado de Minas Gerais (Funda??o de Amparo ? Pesquisa do estado de Minas Gerais (FAPEMIG) / O presente estudo teve como objetivo avaliar o efeito da cianamida hidrogenada e a fenologia de produ??o em cultivares Pinot Meunier e Pinot Noir no munic?pio de Diamantina/MG. Os experimentos foram conduzidos em propriedade comercial localizada em Diamantina/MG. O vinhedo foi instalado em 2005 com as cultivares Pinot Meunier e Pinot Noir, enxertadas sobre o porta-enxerto 1103 Pausen, implantado com espa?amento de 1 m entre plantas x 2,5 m entre fileiras. As plantas foram conduzidas com 2 hastes em esquema de espaldeira vertical e tr?s fios de arame. A poda foi realizada em 4 de setembro de 2008, deixando uma haste curta com duas gemas por espor?o. Para a caracteriza??o fenol?gica foram feitas observa??es visuais a cada dois dias da poda at? a colheita. As demandas t?rmicas foram calculadas a partir de temperaturas observadas na Esta??o Meteorol?gica de Diamantina/MG. Para as curvas de matura??o foi utilizado suco para avalia??o qu?mica dos teores de s?lidos sol?veis totais (SST), acidez total titul?vel (ATT) e rela??o SST/ATT. Para avaliar o efeito da aplica??o de cianamida hidrogenada na brota??o, in?cio de matura??o e nas caracter?sticas f?sico-qu?micas das cultivares Pinot Meunier e Pinot Noir cultivadas em Diamantina/MG, foram realizadas avalia??es das plantas a cada dois dias, quando foram aferidas as porcentagens de brota??o e porcentagens de bagas em in?cio de matura??o. Na colheita foi realizada a contagem do n?mero de cachos por planta e foram amostradas 15 bagas por parcela para as seguintes avalia??es f?sico-qu?micas das bagas: umidade, massa, di?metros longitudinal (DL) e transversal (DT), rela??o DL/DT, teor de s?lidos sol?veis totais (SST), acidez total titul?vel (ATT), rela??o STT/ATT, a??cares redutores, antocianinas, flavon?ides, compostos fen?licos e pH. Os resultados obtidos demonstram dura??o do per?odo fenol?gico para as cultivares Pinot Meunier e Pinot Noir de 145 e 155 dias, respectivamente, para a produ??o da safra de ver?o em Diamantina/MG, podendo considerar a variedade Pinot Meunier de ciclo precoce. A exig?ncia t?rmica necess?ria para a produ??o da Pinot Meunier da poda ? colheita foi de 1340,67 GD e da Pinot Noir de 1446,95 GD. A cultivar Pinot Noir apresentou maior teor de s?lidos sol?veis totais e acidez, sendo a maior rela??o SST/ATT da Pinot Meunier nas condi??es de Diamantina/MG. Foram evidenciados para o efeito da aplica??o da cianamida hidrogenada a antecipa??o do in?cio da matura??o em 17 dias para a Pinot Meunier, a maior porcentagem de cachos em in?cio de matura??o em 45,84% e 28,23% para ?Pinot Meunier? e ?Pinot Noir?, respectivamente, e o incremento de algumas caracter?sticas f?sico-qu?micas avaliadas, como acidez total titul?vel, rela??o SST/ATT, flavon?ides e taninos para a cultivar Pinot Meunier e s?lidos sol?veis totais, a??cares redutores e umidade das bagas para a cultivar Pinot Noir. / Disserta??o (Mestrado) ? Programa de P?s-Gradua??o em Produ??o Vegetal, Universidade Federal dos Vales do Jequitinhonha e Mucuri, 2010. / ABSTRACT This study aimed to evaluate the effect of hydrogenated cyanamide and phenology of production in Pinot Meunier and Pinot Noir cultivars in Diamantina/MG.?The experiments were conducted in commercial property located at Diamantina/MG.?The vineyard was established in 2005 with the Pinot Meunier and Pinot Noir cultivars, grafted on rootstock Pausen 1103, deployed with a spacement of 1 m between plants and 2.5 m between rows.?The plants were conducted with 2 rods in an arrangement of vertical cordon and three wires.?The pruning was performed on September 4, 2008 leaving a short stem with two buds per spur.?To characterize the phenology were made visually observations every two days from pruning to harvest.?The thermal demands were calculated from the observed temperatures at the meteorological station of Diamantina/MG.?For the maturation curves was used a juice to make chemical evaluation of total soluble solids (TSS), total titratable acidity (TTA) and the TSS/TTA ratio.?To evaluate the effect of hydrogenated cyanamide on sprouting, early maturation and the physicochemical characteristics of the Pinot Meunier and Pinot Noir cultivars grown in Diamantina/MG where the assessments of plants were made every two days, then there were measured the percentage of budding?and the percentage of berries in early maturation.?At harvest it was counted the number of clusters per plant and there were sampled 15 berries per plot for the following physicochemical evaluations of berries: humidity, mass, longitudinal diameter (DL) and transversal diameter (TD), LD/TD ratio content of?total soluble solids (TSS), total titratable acidity (TTA), TSS/ATT ratio, reducing sugars, anthocyanins, flavonoids, phenolic compounds and pH.?The results show that the duration of phenological period for the Pinot Noir and Pinot Meunier cultivars are from 145 to 155 days, respectively, for the production of summer crops in Diamantina/MG, which may consider the Pinot Meunier variety in early maturity.?The thermal requirement needed for the production of Pinot Meunier from pruning to harvest was 1340.67 GD and Pinot Noir presented 1446.95 GD.?Pinot Noir cultivar showed the highest content of total soluble solids and acidic, and also the highest TSS/TTA ratio of Pinot Meunier in the Diamantina/MG environment.?For the purpose of applying hydrogenated cyanamide there were evidenced the anticipation of early maturation in 17 days for Pinot Meunier, the highest percentage of early-ripening in 45.84% and 28.23% for Pinot Meunier and Pinot Noir, respectively and the increment of some physicochemical characteristics evaluated as total titratable acidity, TSS/TTA ratio, flavonoids and tannins for the Pinot Meunier cultivar and total soluble solid, reducing sugars and humidity from the berries to the Pinot Noir cultivar.
| Identifer | oai:union.ndltd.org:IBICT/oai:acervo.ufvjm.edu.br/jspui:1/526 |
| Date | 26 February 2010 |
| Creators | Moreira, Caio de Oliveira |
| Contributors | Moreira, Silvino Guimar?es, Pinto, Nizia Andrade Villela Dessimoni, Rufini, Jos? Carlos Moraes, Universidade Federal dos Vales do Jequitinhonha e Mucuri (UFVJM) |
| Source Sets | IBICT Brazilian ETDs |
| Language | Portuguese |
| Detected Language | English |
| Type | info:eu-repo/semantics/publishedVersion, info:eu-repo/semantics/masterThesis |
| Source | reponame:Repositório Institucional da UFVJM, instname:Universidade Federal dos Vales do Jequitinhonha e Mucuri, instacron:UFVJM |
| Rights | info:eu-repo/semantics/openAccess |
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