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1.
Sci. agric ; 80: e20220018, 2023. tab, graf
Artigo em Inglês | VETINDEX | ID: biblio-1390420

Resumo

Over the past decade, the business of producing juice from grapes (Vitis labrusca L. and hybrids) has been expanding in response to increasing consumption encouraged by campaigns promoting the benefits grape juice can have on health. This study aimed to determine the effect of the production cycle, vine training system, and rootstock on the yield and physical and physical-chemical characteristics of 'BRS Magna' grapes grown in the Vale do Submédio São Francisco in the northeastern region of Brazil. The study was conducted in Petrolina, Pernambuco, over eight production cycles (2017 to 2020). The grapevines were trained in three vine training trellis systems: espalier, lyre, and pergola; and grafted onto two rootstocks: IAC 572 and IAC 766. The production cycle, training system, and rootstocks affected the yield components, vigor, and physical characteristics of the BRS Magna grapes. The combination of the pergola training system and rootstock IAC 766 stood out from the others, providing mean yields estimated at 26 t ha -1 per production cycle. The soluble solids content (SS), titratable acidity (TA), and SS TA -1 ratio were affected neither by the training system nor the rootstock, and higher values for SS and lower values for TA were obtained in the first, second, fourth and eighth production cycles. Thus, the pergola training system and rootstock IAC 766 are recommended for promoting yield gains in the 'BRS Magna' grape in the Vale do Submédio São Francisco.(AU)


Assuntos
Vitis/crescimento & desenvolvimento , Sucos
2.
Sci. agric ; 80: e20210250, 2023. tab, graf
Artigo em Inglês | VETINDEX | ID: biblio-1377358

Resumo

Multiplex 330 (MX) is a portable, non-invasive fluorescence sensor that provides different multiparametric indices that are sensitive to the concentration of chlorophylls, flavonols, and anthocyanins on the leaf surface. This study investigated the use of these indices to assess the variability on free volatile composition of grapes (Vitis vinifera L.) in the field as well as other components of their quality potential in vineyards affected by iron deficiency chlorosis (IDC). Twenty non-irrigated Tempranillo/110 Richter vineyard subzones from non-affected to moderately affected by IDC were monitored in Ribera del Duero area (Spain) during two seasons. The results indicated that MX can characterize the spatial variation of leaf pigment concentrations, agronomic performance, and grape quality in vineyards affected by IDC. The MX indices measured at the leaf level close to harvest had better predictive values for the concentrations of free alcohols, volatile acids, C13-norisoprenoids, esters and acetates in the must than vine vigor, size or degree of technological maturity of the grapes. Our study demonstrates that the MX indices to estimate leaf pigment concentrations can be helpful to assess the technological maturity and free volatile composition of wine grapes in vineyards affected by IDC; nevertheless, the efficacy of the indexes may vary according to the year season.(AU)


Assuntos
Vitis/crescimento & desenvolvimento , Flavonóis , Fluorescência , Ferro , Antocianinas
3.
Sci. agric ; 79(3): e20200216, 2022. tab, graf
Artigo em Inglês | VETINDEX | ID: biblio-1290192

Resumo

Seasonal variations and production factors can influence the quality of grapes. Considering the Sub-middle region of the São Francisco Valley, Brazil, differentiated by production in rainy and warmer periods of the year, the climatic conditions in each season affect the duration of the phenological phases and quality of the grapes. The objective of this study was to characterize the changes in the quality components during maturation of 'BRS Magna' grapes on different rootstocks, in rainy seasons under tropical conditions, as a support to define the harvest time. The experiment was conducted in Petrolina, Pernambuco, Brazil, from Jan to Apr 2017 (cycle 1) and Dec 2017 to Apr 2018 (cycle 2) evaluating rootstocks and age of the fruits. Bunches were picked from the start of maturation to the harvest: 49, 56, 61, 64 and 68 days after fruit set (DAF) for cycle 1, and 35, 41, 48, 55, 61, and 66 DAF for cycle 2. In cycle 1 'IAC 572' and 'Paulsen 1103' rootstocks provided higher sugar contents in grapes, which was only repeated in cycle 2 for 'Paulsen 1103'. The accumulation of anthocyanins and yellow flavonoids was favored by 'IAC 313' and 'IAC 572' rootstocks in cycle 1, and by 'IAC 313' and 'IAC 766' in cycle 2. A higher content of polyphenols was conferred on 'IAC 572' in cycle 1 and on 'IAC 766' in cycle 2, which also had a greater antioxidant capacity. Although there were differences between rootstocks, harvesting at approximately 64 DAF maximized grape quality for all treatments.(AU)


Assuntos
Transplantes , Vitis/crescimento & desenvolvimento , Estações do Ano , Brasil , Estação Chuvosa , Frutas/fisiologia
4.
Ciênc. rural (Online) ; 52(2): e20201037, 2022. tab
Artigo em Inglês | VETINDEX, LILACS | ID: biblio-1350573

Resumo

Correlation between proximal sensing techniques and laboratory results of qualitative variables plus agronomic attributes was evaluated of a 3,0 ha vineyard in the county of Muitos Capões, Northeast of Rio Grande do Sul State, Brazil, in Vitis vinifera L. at 2017/2018 harvest, aiming to evaluate the replacement of conventional laboratory analysis in viticulture by Vegetation Indexes, at situations were laboratory access are unavailable. Based on bibliographic research, looking for vegetative indexes developed or used for canopy reflectance analysis on grapevines and whose working bands were within the spectral range provided by the equipment used, a total of 17 viable candidates were obtained. These chosen vegetation indices were correlated, through Pearson (5%), with agronomic soil attributes (apparent electrical conductivity, clay, pH in H2O, phosphorus, potassium, organic matter, aluminum, calcium, magnesium, effective CTC, CTC at pH 7.0, zinc, copper, sulfur and boron) for depths 0 -20 cm and 20-40 cm, and plant tissue (Nitrogen, phosphorus, potassium, calcium, magnesium, sulfur, copper, zinc, iron, manganese and boron) , in addition to some key oenological and phytotechnical parameters for the quantification of wine production and quality. One hundred and thirty ninesignificant correlations were obtained from this cross, with 36 moderate coefficients between 19 parameter variables versus 12 of the indexes. We concluded that in cases where access or availability of laboratory analyzes is difficult or impracticable, the use of vegetation indices is possible if the correlation coefficients reach, at least, the moderate magnitude, serving as a support to decision making until the lack analytical structure to be remedied.


Avaliou-se a correlação entre as técnicas de sensoriamento proximal e os resultados laboratoriais de variáveis qualitativas, mais os atributos agronômicos do solo de um vinhedo de 3,0 ha no município de Muitos Capões, região nordeste do estado do Rio Grande do Sul, Brasil, na safra 2017/2018. Objetivou avaliar a substituição das análises laboratoriais convencionais em viticultura por Índices de Vegetação, em situações de indisponibilidade de acesso ao laboratório. Com base em pesquisa bibliográfica, buscaram-se índices vegetativos desenvolvidos ou utilizados para análise de refletância de dossel em videiras e cujas bandas de trabalho estavam dentro do intervalo espectral fornecido pelo equipamento utilizado, obtendo-se um total de 17 candidatos viáveis. Esses índices de vegetação escolhidos foram correlacionados, por meio de Pearson (5%), com atributos agronômicos do solo (condutividade elétrica aparente, argila, pH em H2O, fósforo, potássio, matéria orgânica, alumínio, cálcio, magnésio, CTC efetivo, CTC em pH 7,0, zinco, cobre, enxofre e boro) para profundidades de 0 - 20 cm e 20 - 40 cm, e tecido vegetal (nitrogênio, fósforo, potássio, cálcio, magnésio, enxofre, cobre, zinco, ferro, manganês e boro), além de alguns parâmetros enológicos e fitotécnicos essenciais para a quantificação da produção e qualidade do vinho. Deste cruzamento foram obtidas 139 correlações significativas, resultando 36 coeficientes moderados entre 19 variáveis de parâmetros versus 12 dos índices. Concluímos que nos casos em que o acesso ou disponibilidade de análises laboratoriais é difícil ou impraticável, a utilização de índices de vegetação é possível, desde que os coeficientes de correlação atinjam, pelo menos, a magnitude moderada, servindo como suporte para a tomada de decisão até a falta de estrutura analítica ser remediada.


Assuntos
Vitis/crescimento & desenvolvimento , Produção Agrícola/instrumentação , Produção Agrícola/métodos , Brasil , Qualidade do Solo , Tomada de Decisões , Tecnologia de Sensoriamento Remoto/métodos
5.
Sci. agric. ; 78(4): e20190243, 2021. graf, tab, mapas, ilus
Artigo em Inglês | VETINDEX | ID: vti-31192

Resumo

Characterization of the spatial variability of vegetative vigor in vineyards can help improve the performance of site-specific management practices, or the management of vineyards with different rates. Characterization using canopy proximal sensing has been a widely disseminated technique; however, vineyards in southeastern Brazil, where the utilization of annual double pruning results in a winter harvest, knowledge of the role of variability in improving vineyard management has not yet been applied. This study aimed to determine if post-veraison mapping of a normalized difference vegetation index could be used to assess the variability in grapevine vigor, water status, physiology, yield and berry quality attributes at harvest in an irrigated vineyard in southeastern Brazil. This normalized difference vegetation index was measured with an active canopy sensor, and spatial distribution maps over two growing seasons of a vineyard, managed on an annual double pruning basis, were generated. Attributes of physiological and technological berry maturation, leaf water potential, gas exchange, production, and fresh pruning weight were calculated. These normalized difference vegetation index maps allowed for the determination of variability in vegetative vigor and the productive potential of the vineyard; however, high levels of rainfall during the maturation period may reduce the potential of using these maps for determining berry parameters.(AU)


Assuntos
Frutas/crescimento & desenvolvimento , Frutas/fisiologia , Vitis/crescimento & desenvolvimento , Padrão de Identidade e Qualidade para Produtos e Serviços
6.
Sci. agric ; 78(4): e20190243, 2021. graf, tab, map, ilus
Artigo em Inglês | VETINDEX | ID: biblio-1497954

Resumo

Characterization of the spatial variability of vegetative vigor in vineyards can help improve the performance of site-specific management practices, or the management of vineyards with different rates. Characterization using canopy proximal sensing has been a widely disseminated technique; however, vineyards in southeastern Brazil, where the utilization of annual double pruning results in a winter harvest, knowledge of the role of variability in improving vineyard management has not yet been applied. This study aimed to determine if post-veraison mapping of a normalized difference vegetation index could be used to assess the variability in grapevine vigor, water status, physiology, yield and berry quality attributes at harvest in an irrigated vineyard in southeastern Brazil. This normalized difference vegetation index was measured with an active canopy sensor, and spatial distribution maps over two growing seasons of a vineyard, managed on an annual double pruning basis, were generated. Attributes of physiological and technological berry maturation, leaf water potential, gas exchange, production, and fresh pruning weight were calculated. These normalized difference vegetation index maps allowed for the determination of variability in vegetative vigor and the productive potential of the vineyard; however, high levels of rainfall during the maturation period may reduce the potential of using these maps for determining berry parameters.


Assuntos
Frutas/crescimento & desenvolvimento , Frutas/fisiologia , Vitis/crescimento & desenvolvimento , Padrão de Identidade e Qualidade para Produtos e Serviços
7.
Sci. agric ; 78(1): e20180413, 2021. tab, graf
Artigo em Inglês | VETINDEX | ID: biblio-1497916

Resumo

The aim of this research was to study the influence of training system and rootstock on the yield, vigor and physiology of the ‘Chenin Blanc’ grapevine at São Francisco Valley, northeastern Brazil. An experiment was carried out on eight harvests, from 2013 to 2017, in Petrolina, in the state of Pernambuco. Grapevines were grown under two training systems, lyre and espalier, and five rootstocks: ‘IAC 572’, ‘IAC 313’, ‘IAC 766’, ‘Paulsen 1103’ and ‘SO4’, using a split-plot randomized block design, with training systems assigned to the main plot and the rootstock assigned to the subplot. Lyre favored an increase in the number of bunches, branches and leaf mass in the harvest of the first semester of the year, while in the second semester there were increases of 40 % in the number of bunches and 10 % in leaf mass. Lyre promoted more balanced vines, showing a better ratio between production and pruning weight (Ravaz index). The rootstocks ‘IAC 766’, ‘IAC 313’ and ‘IAC 572’ increased yield and bunch mass under both training systems, while ‘SO4’ reduced yield and vigor. The stomatal conductance and instantaneous efficiency of water use were not influenced by either the training system or the rootstock. Under tropical conditions in the São Francisco Valley, ‘Chenin Blanc’ grapevine may be grown under the lyre training system, preferably on the ‘IAC 766’ rootstock, to obtain high yields and balanced grapevines.


Assuntos
24444 , Eficiência , Vitis/crescimento & desenvolvimento
8.
Sci. agric. ; 78(1): e20180413, 2021. tab, graf
Artigo em Inglês | VETINDEX | ID: vti-27641

Resumo

The aim of this research was to study the influence of training system and rootstock on the yield, vigor and physiology of the ‘Chenin Blanc grapevine at São Francisco Valley, northeastern Brazil. An experiment was carried out on eight harvests, from 2013 to 2017, in Petrolina, in the state of Pernambuco. Grapevines were grown under two training systems, lyre and espalier, and five rootstocks: ‘IAC 572, ‘IAC 313, ‘IAC 766, ‘Paulsen 1103 and ‘SO4, using a split-plot randomized block design, with training systems assigned to the main plot and the rootstock assigned to the subplot. Lyre favored an increase in the number of bunches, branches and leaf mass in the harvest of the first semester of the year, while in the second semester there were increases of 40 % in the number of bunches and 10 % in leaf mass. Lyre promoted more balanced vines, showing a better ratio between production and pruning weight (Ravaz index). The rootstocks ‘IAC 766, ‘IAC 313 and ‘IAC 572 increased yield and bunch mass under both training systems, while ‘SO4 reduced yield and vigor. The stomatal conductance and instantaneous efficiency of water use were not influenced by either the training system or the rootstock. Under tropical conditions in the São Francisco Valley, ‘Chenin Blanc grapevine may be grown under the lyre training system, preferably on the ‘IAC 766 rootstock, to obtain high yields and balanced grapevines.(AU)


Assuntos
Vitis/crescimento & desenvolvimento , 24444 , Eficiência
9.
Sci. agric. ; 78(6): 1-9, 2021. mapas, tab, graf
Artigo em Inglês | VETINDEX | ID: vti-31275

Resumo

In Southeast Brazil, the change of grape harvest from wet summer to dry winter through double-pruning management has improved the quality of wines, currently denominated winter wines. In order to better understand the influences of soil, macroclimate, and vineyard management in winter wines, we investigated seven vineyards in the states of Minas Gerais (Três Corações TC, Três Pontas TP, Cordislândia COR, São Sebastião do Paraíso SSP and Andradas AND) and São Paulo (Itobi ITO and Espirito Santo do Pinhal PIN) during three consecutive growing seasons. The vineyards are located in warm temperate zones and grouped in four soil types: Acrudox in TC, AND and SSP, Hapludox in TP; Hapludult in AND and PIN; Eutrudept in ITO. The high clay content (> 35 %) observed in all soil types, associated to low evapotranspiration demand, avoided the occurrence of severe water stress, as observed by the high values of leaf and stem water potential, stomatal conductance, photosynthesis, and transpiration. Differences in vigor were more related to vineyard management and did not affect grape composition. Among vineyards, parameters for berry quality from ITO, such as sugar and acidity, were more associated to high soil sand content and winter temperature. No significant differences were found in anthocyanins and total phenols of berries among vineyards, suggesting that the high thermal range and low precipitation during autumn-winter, historically observed in all municipalities, seemed to be the main factor for improvement of phenolic compounds.(AU)


Assuntos
Vitis/crescimento & desenvolvimento , Vinho/análise , Solo/química
10.
Sci. agric ; 78(6): 1-9, 2021. map, tab, graf
Artigo em Inglês | VETINDEX | ID: biblio-1497985

Resumo

In Southeast Brazil, the change of grape harvest from wet summer to dry winter through double-pruning management has improved the quality of wines, currently denominated winter wines. In order to better understand the influences of soil, macroclimate, and vineyard management in winter wines, we investigated seven vineyards in the states of Minas Gerais (Três Corações TC, Três Pontas TP, Cordislândia COR, São Sebastião do Paraíso SSP and Andradas AND) and São Paulo (Itobi ITO and Espirito Santo do Pinhal PIN) during three consecutive growing seasons. The vineyards are located in warm temperate zones and grouped in four soil types: Acrudox in TC, AND and SSP, Hapludox in TP; Hapludult in AND and PIN; Eutrudept in ITO. The high clay content (> 35 %) observed in all soil types, associated to low evapotranspiration demand, avoided the occurrence of severe water stress, as observed by the high values of leaf and stem water potential, stomatal conductance, photosynthesis, and transpiration. Differences in vigor were more related to vineyard management and did not affect grape composition. Among vineyards, parameters for berry quality from ITO, such as sugar and acidity, were more associated to high soil sand content and winter temperature. No significant differences were found in anthocyanins and total phenols of berries among vineyards, suggesting that the high thermal range and low precipitation during autumn-winter, historically observed in all municipalities, seemed to be the main factor for improvement of phenolic compounds.


Assuntos
Solo/química , Vinho/análise , Vitis/crescimento & desenvolvimento
11.
Semina ciênc. agrar ; 42(06): 3201-3218, nov.-dez. 2021. tab, graf
Artigo em Inglês | VETINDEX | ID: biblio-1501900

Resumo

Glycinebetaine (GB) plays an imperative role to mitigate the opposing impact of several environmental stresses in various crops. The objective of this investigation was to scrutinize the response of grape (Vitis vinifera L.) to the foliar application of GB. Diverse levels of GB (0, 10, 20 and 30 mM) were applied three times with fifteen days interval to grape cv. King's Ruby. All levels of GB improved the physiological, biochemical and growth attributes of the grape. As compared to control treatment, foliar spray of GB applied at 30 mM increased the number of leaves/vine, leaf area and number of newly emerged branches/plant by 20.55%, 12.28% and 48.13%, respectively. The pH of grape juice was decreased by increasing GB levels. However, total soluble solids, total chlorophyll contents, grape yield and photosynthesis rate was recorded maximum with foliar spray of GB applied at 30 mM. The regression model predicted that each increment in GB level enhanced the number of leaves/plant and the number of newly emerged branches/plant by 1.8 and 0.7, respectively. Thus, it is concluded that exogenous application GB applied at 30 mM might be more useful to obtain the optimum growth and quality of grapes.


A glicina betaína (GB) desempenha um papel fundamental para mitigar o impacto oposto de vários estresses ambientais em várias culturas agrícolas. O objetivo desta pesquisa foi examinar a resposta da uva (Vitis vinifera L.) à aplicação foliar de GB. Diversos níveis de GB (0, 10, 20 e 30 mM) foram aplicados três vezes com intervalo de 15 dias à videira cv. King's Ruby. Todos os níveis de GB melhoraram os atributos fisiológicos, bioquímicos e de crescimento da uva. Em comparação ao tratamento controle, a pulverização foliar de GB aplicada à 30 mM aumentou o número de folhas / videira, área foliar e número de ramos / planta recém-emergidos em 20,55%, 12,28% e 48,13%, respectivamente. O pH do suco de uva diminuiu com o aumento dos níveis de GB. No entanto, sólidos solúveis totais, conteúdo de clorofila total, rendimento de uva e taxa de fotossíntese foram registrados no máximo com pulverização foliar de GB aplicada a 30 mM. O modelo de regressão previu que cada incremento no nível de GB aumentava o número de folhas/planta e o número de ramos/planta recém-emergidos em 1,8 e 0,7, respectivamente. Assim, conclui-se que a aplicação exógena GB aplicada à 30 mM pode ser mais útil para obter o crescimento e a qualidade ideais das uvas.


Assuntos
Betaína/administração & dosagem , Vitis/crescimento & desenvolvimento , Vitis/fisiologia
12.
Rev. Ciênc. Agrovet. (Online) ; 20(3): 250-254, 2021. tab
Artigo em Português | VETINDEX | ID: biblio-1488470

Resumo

A utilização de plantas de cobertura do solo, no cultivo da videira é uma técnica importante, principalmente para regiões de clima tropical devido às elevadas temperaturas do ar e do solo. Objetivou-se com este trabalho avaliar o desenvolvimento do cultivar de porta-enxerto de videira IAC 572 ‘Jales’, consorciadocom diferentes plantas decobertura do solo. O experimento foi conduzido em área experimental da Universidade Estadual do Mato Grosso do Sul -Unidade Universitária de Cassilândia. O delineamento experimental foi em blocos ao acaso, com cinco repetições de duas plantas do porta-enxerto, totalizando dez plantas úteis por tratamento. Os tratamentos foram definidos pelas plantas de cobertura: milheto (Pennisetum glaucum); crotolária (Crotalaria juncea); e mamona (Ricinus communis). Foram avaliadas a altura das plantas, diâmetro de caule, número de ramos e teor relativo de clorofila. O desenvolvimento de porta-enxerto IAC 572 ‘Jales’, é favorecido pelo cultivo consorciado com crotalária e milheto na entrelinha de plantio, pois contribui para maior altura de plantas e maior teor relativo de clorofila. A utilização da cultura da mamona, em consórcio com o porta-enxerto, deve ser evitada. Tais resultados demonstram a importância de se conhecer a interação entre e espécie cultivada e as plantas de cobertura do solo. Desta forma, outras espécies devem ser avaliadas, para cultivo em consócio com a cultura da videira em regiões tropicais.


The use of soil cover crops in the cultivation of the vine is an important technique, especially for tropical climate regions due to high air and soil temperatures. Therefore, this work aimed to evaluate the development of the vine rootstock cultivar “IAC 572 ‘Jales’, intercropped with different types of soilcover plants in the Brazilian Cerrado. The experiment was conducted in an experimental area at the State University of Mato Grosso do Sul -Cassilândia University Unit. The experimental design performed on randomized blocks and with five replications of two rootstock plants, totaling ten useful plants per treatment. The treatments were defined by cover crops: millet (Pennisetum glaucum); crotalaria (Crotalaria juncea); and castor (Ricinus communis). Plant height, stem diameter, number of branches and relative chlorophyll content were evaluated. The development of IAC 572 'Jales' rootstock is favored by the intercropping with crotalaria and millet between the planting rows, as it contributes to greater plant height and higher relative chlorophyll content. The use of castor bean culture, in consortium with the rootstock, should be avoided. These results demonstrate the importance of knowing the interaction between the cultivated species and the ground cover crops. Thus, other species must be evaluated, for cultivation in association with the culture of the vine in tropical regions.


Assuntos
Análise do Solo , Conservação de Terras , Vitis/crescimento & desenvolvimento , Vitis/química
13.
R. Ci. agrovet. ; 20(3): 250-254, 2021. tab
Artigo em Português | VETINDEX | ID: vti-765252

Resumo

A utilização de plantas de cobertura do solo, no cultivo da videira é uma técnica importante, principalmente para regiões de clima tropical devido às elevadas temperaturas do ar e do solo. Objetivou-se com este trabalho avaliar o desenvolvimento do cultivar de porta-enxerto de videira IAC 572 ‘Jales, consorciadocom diferentes plantas decobertura do solo. O experimento foi conduzido em área experimental da Universidade Estadual do Mato Grosso do Sul -Unidade Universitária de Cassilândia. O delineamento experimental foi em blocos ao acaso, com cinco repetições de duas plantas do porta-enxerto, totalizando dez plantas úteis por tratamento. Os tratamentos foram definidos pelas plantas de cobertura: milheto (Pennisetum glaucum); crotolária (Crotalaria juncea); e mamona (Ricinus communis). Foram avaliadas a altura das plantas, diâmetro de caule, número de ramos e teor relativo de clorofila. O desenvolvimento de porta-enxerto IAC 572 ‘Jales, é favorecido pelo cultivo consorciado com crotalária e milheto na entrelinha de plantio, pois contribui para maior altura de plantas e maior teor relativo de clorofila. A utilização da cultura da mamona, em consórcio com o porta-enxerto, deve ser evitada. Tais resultados demonstram a importância de se conhecer a interação entre e espécie cultivada e as plantas de cobertura do solo. Desta forma, outras espécies devem ser avaliadas, para cultivo em consócio com a cultura da videira em regiões tropicais.(AU)


The use of soil cover crops in the cultivation of the vine is an important technique, especially for tropical climate regions due to high air and soil temperatures. Therefore, this work aimed to evaluate the development of the vine rootstock cultivar “IAC 572 ‘Jales, intercropped with different types of soilcover plants in the Brazilian Cerrado. The experiment was conducted in an experimental area at the State University of Mato Grosso do Sul -Cassilândia University Unit. The experimental design performed on randomized blocks and with five replications of two rootstock plants, totaling ten useful plants per treatment. The treatments were defined by cover crops: millet (Pennisetum glaucum); crotalaria (Crotalaria juncea); and castor (Ricinus communis). Plant height, stem diameter, number of branches and relative chlorophyll content were evaluated. The development of IAC 572 'Jales' rootstock is favored by the intercropping with crotalaria and millet between the planting rows, as it contributes to greater plant height and higher relative chlorophyll content. The use of castor bean culture, in consortium with the rootstock, should be avoided. These results demonstrate the importance of knowing the interaction between the cultivated species and the ground cover crops. Thus, other species must be evaluated, for cultivation in association with the culture of the vine in tropical regions.(AU)


Assuntos
Vitis/química , Vitis/crescimento & desenvolvimento , Análise do Solo , Conservação de Terras
14.
Semina Ci. agr. ; 42(06): 3201-3218, nov.-dez. 2021. tab, graf
Artigo em Inglês | VETINDEX | ID: vti-33483

Resumo

Glycinebetaine (GB) plays an imperative role to mitigate the opposing impact of several environmental stresses in various crops. The objective of this investigation was to scrutinize the response of grape (Vitis vinifera L.) to the foliar application of GB. Diverse levels of GB (0, 10, 20 and 30 mM) were applied three times with fifteen days interval to grape cv. King's Ruby. All levels of GB improved the physiological, biochemical and growth attributes of the grape. As compared to control treatment, foliar spray of GB applied at 30 mM increased the number of leaves/vine, leaf area and number of newly emerged branches/plant by 20.55%, 12.28% and 48.13%, respectively. The pH of grape juice was decreased by increasing GB levels. However, total soluble solids, total chlorophyll contents, grape yield and photosynthesis rate was recorded maximum with foliar spray of GB applied at 30 mM. The regression model predicted that each increment in GB level enhanced the number of leaves/plant and the number of newly emerged branches/plant by 1.8 and 0.7, respectively. Thus, it is concluded that exogenous application GB applied at 30 mM might be more useful to obtain the optimum growth and quality of grapes.(AU)


A glicina betaína (GB) desempenha um papel fundamental para mitigar o impacto oposto de vários estresses ambientais em várias culturas agrícolas. O objetivo desta pesquisa foi examinar a resposta da uva (Vitis vinifera L.) à aplicação foliar de GB. Diversos níveis de GB (0, 10, 20 e 30 mM) foram aplicados três vezes com intervalo de 15 dias à videira cv. King's Ruby. Todos os níveis de GB melhoraram os atributos fisiológicos, bioquímicos e de crescimento da uva. Em comparação ao tratamento controle, a pulverização foliar de GB aplicada à 30 mM aumentou o número de folhas / videira, área foliar e número de ramos / planta recém-emergidos em 20,55%, 12,28% e 48,13%, respectivamente. O pH do suco de uva diminuiu com o aumento dos níveis de GB. No entanto, sólidos solúveis totais, conteúdo de clorofila total, rendimento de uva e taxa de fotossíntese foram registrados no máximo com pulverização foliar de GB aplicada a 30 mM. O modelo de regressão previu que cada incremento no nível de GB aumentava o número de folhas/planta e o número de ramos/planta recém-emergidos em 1,8 e 0,7, respectivamente. Assim, conclui-se que a aplicação exógena GB aplicada à 30 mM pode ser mais útil para obter o crescimento e a qualidade ideais das uvas.(AU)


Assuntos
Vitis/crescimento & desenvolvimento , Vitis/fisiologia , Betaína/administração & dosagem
15.
Ci. Rural ; 51(7)2021. tab, graf
Artigo em Inglês | VETINDEX | ID: vti-31179

Resumo

Rootstocks are widely used in viticulture due to their resistance to biotic and abiotic stress. Additionally, rootstocks can affect vine growth and fruit quality. This study evaluated the compatibility and initial developmental of the BRS Magna grafted on different rootstocks The wedge graft technique on woody cuttings was utilized. The percentage of survival ranged from 0% (VR043-43) to 98.33% (101-14 MGT), and the rootstock were grouped into three distinct groups. IAC 313 Tropical and SO4 rootstocks were those ones with the highest vigor in relation to initial shoot growth. However, IAC 572 Jales, Harmony, 3309 Couderc and Gravesac had the best balance between initial shoot growth and root development. The BRS Magna when grafted on rootstocks IAC 313 Tropical, SO4 and 101-14 MGT showed the highest initial development rates, while when grafted on R99, R110 and 420A, it showed the lowest initial development.(AU)


Os porta-enxertos são amplamente utilizados na viticultura devido à sua resistência aos estresses biótico e abiótico. Além disso, os porta-enxertos podem afetar o crescimento da videira e a qualidade dos frutos. O objetivo deste estudo foi avaliar a compatibilidade e o desenvolvimento inicial de videiras BRS Magna enxertada em diferentes porta-enxertos. A técnica de enxertia em fenda foi utilizada. A porcentagem de sobrevivência variou de 0% (VR043-43) a 98,33% (101-14 MGT) e os porta-enxertos foram agrupados em três grupos distintos. Os porta-enxertos IAC 313 Tropical e SO4 foram os de maior vigor em relação ao crescimento inicial da parte aérea. Já IAC 572 Jales, Harmony, 3309 Couderc e Gravesac tiveram o melhor equilíbrio entre o crescimento inicial da parte aérea e o desenvolvimento das raízes. BRS Magna quando enxertada nos porta-enxertos IAC 313 Tropical, SO4 e 101-14 MGT apresentou as maiores taxas de desenvolvimento inicial, enquanto que, quando enxertada em R99, R110 e 420A, apresentou os menores valores iniciais de desenvolvimento.(AU)


Assuntos
Transplantes/microbiologia , Vitis/crescimento & desenvolvimento , Frutas/anatomia & histologia
16.
Rev. Ciênc. Agrovet. (Online) ; 20(4): 286-293, 2021. tab, graf
Artigo em Português | VETINDEX | ID: biblio-1488476

Resumo

Objetivou-se avaliar o comportamento fenológico, e as características físico-químicas e produtivas da videira ‘BRS Carmem’ cultivadas em Palotina, PR. A avaliação das videiras enxertadas sobre IAC 572 ‘Tropical’, espaçadas em 1,5 x 2,5 m, e conduzidas em espaldeira foi realizada nas safras 2019/2020 e 2020/2021. Foram utilizadas 20 plantas representativas do pomar experimental da UFPR –Setor Palotina. A avaliação do comportamento fenológico foi realizada a partir de observação de ramos selecionados, a partir da poda de frutificação realizada em meados de agosto, caracterizando-se a duração em dias de cada um dos seguintes subperíodos: poda à gema-algodão (PO-GA); poda à brotação (PO-BR); poda ao aparecimento da inflorescência (PO-AI); poda ao florescimento (PO-FL); poda ao início da maturação (PO-IM) das bagas; poda à colheita (PO-CO), sendo confeccionados diagramas em escala de dias. Por ocasião da colheita quantificou-se o número de cachos por planta, massa dos cachos e a partir destes dados foram estimadas a produção (kg planta-1) e produtividade (t ha-1). Para avaliaçãodo mosto foram coletados dois cachos por planta, dos quais retirou-se seis bagas por cachopara avaliação do teor de sólidos solúveis (SS), acidez titulável (AT), relação de índice de maturação (SS/AT) e o teor de antocianinas (mg g-1). Quanto ao número de cachos verificou se em média 48 cachos por planta com massa média de 133 g. As estimativas da produção por planta e produtividade foram de 6,4 kg e 17,1 t ha-1, respectivamente. Os teores médios de SS, AT, SS/AT e antocianinas, foram de 18°Brix, 0,97% deácido tartárico, 18,4 e 4,97 mg g-1, respectivamente. As características produtivas e a qualidade do mosto da ‘BRS Carmem’ cultivadas na região Oeste do Paraná estão dentro dos padrões desejáveis para elaboração de suco de uva.


The objective of this study was to evaluate the phenological behavior and the physical-chemical and productive characteristics of the ‘BRS Carmem’ vine grown in the Western region of Paranástate (Brazil). The evaluation of vines grafted on IAC 572 ‘Tropical’, spaced at 1.5 x 2.5 m, and conducted on a backrest was performed in the harvests 2019/2020 and 2020/2021. Twenty plants representing the experimental orchard of UFPR -Palotina Sector were used. The evaluation of phenological behavior was performed from observation of selected branches, from the fruiting pruning carried out in mid-August, characterizing the duration in days of each of the following subperiods: cotton yolk pruning (PO-GA); pruning to sprouting (PO-BR); pruning to the appearance of inflorescence (PO-AI); pruning to flowering(PO-FL); pruning at the beginning of ripening (PO-IM) of the berries; pruning to harvest (PO-CO), and diagrams were made on a day scale. At the harvesttime, the number of bunchesper plant, mass of bunches was quantified and from these data the production (kg plant-1) and the productivity (t ha-1) were estimated. To evaluate the must, two bunches per plant were collected, and six berries were collected per bunch to evaluate soluble solids content (SS), titratable acidity (TA), maturation index ratio (SS/TA) and anthocyanin content (mg g-1). For the number of bunches was verified an average of 48 bunches per plant, with an average mass of 133 g. The production per plantand yieldestimateswere 6.4 kg and 17.1 t ha-1, respectively. The mean levels of SS, AT, SS/AT and anthocyanins were 18°Brix, 0.97% of tartaric acid, 18.4 and 4.97 mg g-1, respectively. Therefore, theproductivecharacteristics and the quality of the 'BRS Carmem' cultivated in the Western region of Paraná state are within the desirable standards for grape juicepreparation.


Assuntos
Fenômenos Fisiológicos Vegetais , Fenômenos Químicos , Vitis/crescimento & desenvolvimento , Vitis/química
17.
R. Ci. agrovet. ; 20(4): 286-293, 2021. tab, graf
Artigo em Português | VETINDEX | ID: vti-765258

Resumo

Objetivou-se avaliar o comportamento fenológico, e as características físico-químicas e produtivas da videira ‘BRS Carmem cultivadas em Palotina, PR. A avaliação das videiras enxertadas sobre IAC 572 ‘Tropical, espaçadas em 1,5 x 2,5 m, e conduzidas em espaldeira foi realizada nas safras 2019/2020 e 2020/2021. Foram utilizadas 20 plantas representativas do pomar experimental da UFPR –Setor Palotina. A avaliação do comportamento fenológico foi realizada a partir de observação de ramos selecionados, a partir da poda de frutificação realizada em meados de agosto, caracterizando-se a duração em dias de cada um dos seguintes subperíodos: poda à gema-algodão (PO-GA); poda à brotação (PO-BR); poda ao aparecimento da inflorescência (PO-AI); poda ao florescimento (PO-FL); poda ao início da maturação (PO-IM) das bagas; poda à colheita (PO-CO), sendo confeccionados diagramas em escala de dias. Por ocasião da colheita quantificou-se o número de cachos por planta, massa dos cachos e a partir destes dados foram estimadas a produção (kg planta-1) e produtividade (t ha-1). Para avaliaçãodo mosto foram coletados dois cachos por planta, dos quais retirou-se seis bagas por cachopara avaliação do teor de sólidos solúveis (SS), acidez titulável (AT), relação de índice de maturação (SS/AT) e o teor de antocianinas (mg g-1). Quanto ao número de cachos verificou se em média 48 cachos por planta com massa média de 133 g. As estimativas da produção por planta e produtividade foram de 6,4 kg e 17,1 t ha-1, respectivamente. Os teores médios de SS, AT, SS/AT e antocianinas, foram de 18°Brix, 0,97% deácido tartárico, 18,4 e 4,97 mg g-1, respectivamente. As características produtivas e a qualidade do mosto da ‘BRS Carmem cultivadas na região Oeste do Paraná estão dentro dos padrões desejáveis para elaboração de suco de uva.(AU)


The objective of this study was to evaluate the phenological behavior and the physical-chemical and productive characteristics of the ‘BRS Carmem vine grown in the Western region of Paranástate (Brazil). The evaluation of vines grafted on IAC 572 ‘Tropical, spaced at 1.5 x 2.5 m, and conducted on a backrest was performed in the harvests 2019/2020 and 2020/2021. Twenty plants representing the experimental orchard of UFPR -Palotina Sector were used. The evaluation of phenological behavior was performed from observation of selected branches, from the fruiting pruning carried out in mid-August, characterizing the duration in days of each of the following subperiods: cotton yolk pruning (PO-GA); pruning to sprouting (PO-BR); pruning to the appearance of inflorescence (PO-AI); pruning to flowering(PO-FL); pruning at the beginning of ripening (PO-IM) of the berries; pruning to harvest (PO-CO), and diagrams were made on a day scale. At the harvesttime, the number of bunchesper plant, mass of bunches was quantified and from these data the production (kg plant-1) and the productivity (t ha-1) were estimated. To evaluate the must, two bunches per plant were collected, and six berries were collected per bunch to evaluate soluble solids content (SS), titratable acidity (TA), maturation index ratio (SS/TA) and anthocyanin content (mg g-1). For the number of bunches was verified an average of 48 bunches per plant, with an average mass of 133 g. The production per plantand yieldestimateswere 6.4 kg and 17.1 t ha-1, respectively. The mean levels of SS, AT, SS/AT and anthocyanins were 18°Brix, 0.97% of tartaric acid, 18.4 and 4.97 mg g-1, respectively. Therefore, theproductivecharacteristics and the quality of the 'BRS Carmem' cultivated in the Western region of Paraná state are within the desirable standards for grape juicepreparation.(AU)


Assuntos
Vitis/química , Vitis/crescimento & desenvolvimento , Fenômenos Fisiológicos Vegetais , Fenômenos Químicos
18.
Rev. Ciênc. Agrovet. (Online) ; 19(2): 171-177, 2020. tab, graf
Artigo em Português | VETINDEX | ID: biblio-1488398

Resumo

Buscando alcançar um adequado balanço vegeto-produtivo, este trabalho teve como objetivo avaliar o efeito do aumento da carga de gemas planta-1, no momento da poda, nas características produtivas e equilíbrio vegetativo da videira Cabernet Franc cultivada em região de elevada altitude de Santa Catarina. O presente trabalho foi conduzido durante a safra 2016/2017, em um vinhedo comercial, localizado no munícipio de São Joaquim. Utilizaram-se videiras da cultivar Cabernet Franc enxertadas sobre o porta-enxerto Paulsen 1103. Os tratamentos consistiram em quatro diferentes níveis de cargas de gemas: 15, 30, 50 e 75 gemas planta-1. Avaliou-se no momento da colheita variáveis produtivas e vegetativas, e ao longo do ciclo da videira, avaliou-se o crescimento de ramos e feminelas. O delineamento experimental utilizado foi o de blocos ao acaso, com quatro blocos e cinco plantas por parcela. O aumento da carga de gemas planta-1 resultou em aumento do número de ramos e de cachos planta-1, resultando em aumento da produção por planta e da produtividade. As variáveis vegetativas foram influenciadas pelo aumento da gemas planta-1, observando-se redução do crescimento de ramos e de feminelas. O aumento da carga de gemas possibilitou melhor equilíbrio vegeto-produtivo, com redução do peso de poda, e obtenção do Índice de Ravaz mais adequado para a elaboração de vinhos de qualidade...


To reach an adequate vegetative-productive balance, this work aimed to evaluate the effect of an increase of the bud load.plant-1 during pruning, on the productive characteristics and vegetative balance of Cabernet Franc grapevine cultivated in a high-altitude region of the state of Santa Catarina, Brazil. The present work was conducted during the 2016/2017 harvest, in a commercial vineyard located in the municipality of São Joaquim. Cabernet Franc variety grapevines grafted on the 'Paulsen 1103' rootstock were used. The treatments consisted of four different levels of bud loads: 15, 30, 50, and 75 buds.plant-1. At the time of harvesting, productive and vegetative variables were evaluated, and the growth of branches and secondary shoots was evaluated along the grapevine cycle. The experimental design was a randomized block design with four blocks and five plants per plot. The increase of the bud load.plant-1 increased the number of branches and bunches.plant-1, resulting in increased plant production and productivity. The vegetative variables were influenced by the increase of buds.plant-1, with a reduction of the growth of branches and of secondary shoots. The increase of the bud load allowed a better vegetative-productive balance, with the reduction in the weight of pruning, and a Ravaz Index more suitable for the production of quality wines. In vineyards with...


Assuntos
Brotos de Planta , Vitis/crescimento & desenvolvimento
19.
R. Ci. agrovet. ; 19(2): 171-177, 2020. tab, graf
Artigo em Português | VETINDEX | ID: vti-27664

Resumo

Buscando alcançar um adequado balanço vegeto-produtivo, este trabalho teve como objetivo avaliar o efeito do aumento da carga de gemas planta-1, no momento da poda, nas características produtivas e equilíbrio vegetativo da videira Cabernet Franc cultivada em região de elevada altitude de Santa Catarina. O presente trabalho foi conduzido durante a safra 2016/2017, em um vinhedo comercial, localizado no munícipio de São Joaquim. Utilizaram-se videiras da cultivar Cabernet Franc enxertadas sobre o porta-enxerto Paulsen 1103. Os tratamentos consistiram em quatro diferentes níveis de cargas de gemas: 15, 30, 50 e 75 gemas planta-1. Avaliou-se no momento da colheita variáveis produtivas e vegetativas, e ao longo do ciclo da videira, avaliou-se o crescimento de ramos e feminelas. O delineamento experimental utilizado foi o de blocos ao acaso, com quatro blocos e cinco plantas por parcela. O aumento da carga de gemas planta-1 resultou em aumento do número de ramos e de cachos planta-1, resultando em aumento da produção por planta e da produtividade. As variáveis vegetativas foram influenciadas pelo aumento da gemas planta-1, observando-se redução do crescimento de ramos e de feminelas. O aumento da carga de gemas possibilitou melhor equilíbrio vegeto-produtivo, com redução do peso de poda, e obtenção do Índice de Ravaz mais adequado para a elaboração de vinhos de qualidade...(AU)


To reach an adequate vegetative-productive balance, this work aimed to evaluate the effect of an increase of the bud load.plant-1 during pruning, on the productive characteristics and vegetative balance of Cabernet Franc grapevine cultivated in a high-altitude region of the state of Santa Catarina, Brazil. The present work was conducted during the 2016/2017 harvest, in a commercial vineyard located in the municipality of São Joaquim. Cabernet Franc variety grapevines grafted on the 'Paulsen 1103' rootstock were used. The treatments consisted of four different levels of bud loads: 15, 30, 50, and 75 buds.plant-1. At the time of harvesting, productive and vegetative variables were evaluated, and the growth of branches and secondary shoots was evaluated along the grapevine cycle. The experimental design was a randomized block design with four blocks and five plants per plot. The increase of the bud load.plant-1 increased the number of branches and bunches.plant-1, resulting in increased plant production and productivity. The vegetative variables were influenced by the increase of buds.plant-1, with a reduction of the growth of branches and of secondary shoots. The increase of the bud load allowed a better vegetative-productive balance, with the reduction in the weight of pruning, and a Ravaz Index more suitable for the production of quality wines. In vineyards with...(AU)


Assuntos
Vitis/crescimento & desenvolvimento , Brotos de Planta
20.
Colloq. Agrar ; 16(4): 121-128, jul.-ago. 2020. tab, graf, ilus
Artigo em Inglês | VETINDEX | ID: biblio-1481583

Resumo

In the State of Goiás, studies related to the vine's responses to the region's edaphoclimatic conditions are scarce. Therefore, the objective of this work was to evaluate the growth of three vine rootstock cultivars, IAC 572 'Jales', IAC 313 'Tropical' and IAC 766 'Campinas', in the region of Goiânia, GO, after drastic pruning for uniformity. To evaluate the growth of rootstocks, the experiment was carried out in random blocks, in a double factorial scheme (3x7), with five replications, each repetition formed by a plant. The first factor consisted of three rootstocks: IAC 313 Tropical, IAC 572 Jales and IAC 766 Campinas. The plants were evaluated after 45 days after a drastic uniformization pruning, totaling seven evaluations (45, 60, 75, 90, 105, 120, 135 days after pruning), this being the second factor. The diameter of the main branch at the height of grafting (80 cm) and length of the main branch were evaluated. With the data on the diameter and length of the main branch, the absolute growth rate was calculated. The IAC 572 'Jales' rootstock cultivar has greater vigor for branch growth, being 69% and 47.3% longer in length, and 49.8% and 18.8% longer in diameter than the IAC rootstock. IAC 313 'Tropical' 'and' IAC 766 'Campinas', respectively. The IAC 766 Campinas rootstock cultivar, although it has low vigor in branch growth, presents satisfactory development.


No Estado de Goiás, são escassos os estudos relacionados às respostas da videira às condições edafoclimáticas da região. Portanto, objetivou-se com este trabalho avaliar o crescimento de três cultivares porta-enxerto de videira, IAC 572 Jales, IAC 313 Tropical e IAC 766 Campinas, na região de Goiânia, GO, após poda drástica para uniformização. Para avaliar o crescimento dos porta-enxertos, o experimento foi realizado em blocos ao acaso, em esquema fatorial duplo (3x7), com cinco repetições, cada repetição formada por uma planta. O primeiro fator consistiu em três porta-enxertos: IAC 313 Tropical, IAC 572 Jales e IAC 766 Campinas. As plantas foram avaliadas a partir de 45 dias após uma poda drástica de uniformização, totalizando sete avaliações (45, 60, 75, 90, 105, 120, 135 dias após a poda), sendo este o segundo fator. Foram avaliados o diâmetro do ramo principal à altura de enxertia (80 cm), e comprimento do ramo principal. De posse dos dados do diâmetro e comprimento do ramo principal, calculou-se a taxa de crescimento absoluto. O cultivar porta-enxerto IAC 572 Jales apresenta maior vigor para crescimento de ramo, sendo em comprimento 69% e 47,3% superior, e em diâmetro 49,8% e 18,8% superior aos porta-enxertos IAC 313 Tropical e IAC 766 Campinas, respectivamente. A cultivar porta-enxerto IAC 766 Campinas embora, tenha vigor baixo em crescimento de ramo...


Assuntos
Pradaria , Vitis/crescimento & desenvolvimento
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