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Registros recuperados: 5
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Copper accumulation in vineyard soils: Rhizosphere processes and agronomic practices to limit its toxicity. Repositório Alice
BRUNETTO, G.; MELO, G. W. B. de; TERZANO, R.; DEL BUONO, D.; ASTOLFI, S.; TOMASI, N.; PII, Y.; MIMMO, T.; CESCO, S..
Viticulture represents an important agricultural practice in many countries worldwide. Yet, the continuous use of fungicides has caused copper (Cu) accumulation in soils, which represent a major environmental and toxicological concern. Despite being an important micronutrient, Cu can be a potential toxicant at high concentrations since it may cause morphological, anatomical and physiological changes in plants, decreasing both food productivity and quality. Rhizosphere processes can, however, actively control the uptake and translocation of Cu in plants. In particular, root exudates affecting the chemical, physical and biological characteristics of the rhizosphere, might reduce the availability of Cu in the soil and hence its absorption. In addition, this...
Tipo: Artigo em periódico indexado (ALICE) Palavras-chave: Processos da rizosfera; Solos de vinhedos; Cu toxicidade; Cobre; Copper; Rhizosphere processes; Vineyard soils; Cu toxicity.
Ano: 2016 URL: http://www.alice.cnptia.embrapa.br/handle/doc/1060600
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Copper and zinc accumulation, fractionation and migration in vineyard soils from Santa Catarina State, Brazil. Repositório Alice
BRUNETTO, G.; COMIM, J. J.; MIOTTO, A.; MORAES, M. P.; SETE, P. B.; SCHMITT, D. E.; GATIBONI, L. C.; MELO, G. W. B. de; MORAIS, G. P..
The purpose of this study was to evaluate Cu and Zn migration and fractions in sandy soil of vineyards. In Urussanga (SC), Brazil, soil samples were collected from a 4-year-old and 15-yearold vineyard, and from a forested area. In the soils, the chemical characteristics of Cu and Zn were analyzed by the EDTA method, which determines the fraction available in soil; 3050B method of the USEPA for total concentrations, which represents the pseudosoil contents in the soil; and chemical fractionation, which estimates soluble fraction, exchangeable fraction, fraction associated with clay minerals, fraction associated with organic matter and residual fraction. The results show that there is accumulation of Cu and Zn in sandy soils cultivated with grapevines and...
Tipo: Artigo em periódico indexado (ALICE) Palavras-chave: Availability; Chemical fractionation; Environmental contamination; Vitisvinifera; Toxicity; Copper; Zinc; Vineyard soils.
Ano: 2018 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1103348
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Evaluation of black oat (avena spp.) Cultivars grown in vineyard soils contaminated by copper. Repositório Alice
MORAIS NETO, J. A.; ZALAMENA, J.; NASCIMENTO JUNIOR, A. do; IWAMOTO, H.; ZIERO, H. D. D.; BORBA, D. R.; VIEIRA, J. L.; FIORELLI, L. E.; MELO, G. W. B. de.
Black oat is a cultivated plant as cover crop in vineyard. It is common to use cover plants as soil conditioners for the cultivation of the grapevine, however high copper (Cu) levels in the soil makes grapevine management much more difficult, which, in turn, makes it necessary to select a better adapted species and/or cultivars which contribute to the phytoremediation in vineyards contaminated with Cu.
Tipo: Resumo em anais de congresso (ALICE) Palavras-chave: Black oat (avena spp); Cultivars grown; Vineyard soils; Copper.
Ano: 2016 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1113043
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High copper content in vineyard soils promotes modifications in photosynthetic parameters and morphological changes in the root system of "Red Niagara" plantlets. Repositório Alice
AMBROSINI, V. G.; ROSA, D. J.; MELO, G. W. B. de; ZALAMENA, J.; CELLA, C.; SIMÃO, D. G.; SILVA, L. S. da; SANTOS, H. P. dos; TOSELLI, M.; TIECHER, T. L.; BRUNETTO, G..
High copper (Cu) soil contents, due to the continuous vineyard application of Cu fungicides throughout the years, may impair the growth of the shoot and modify the structure of the root system. The current study aimed to investigate the threshold levels of available Cu in the soil causing toxicity effects in young grapevine plants of ?Red Niagara? cultivated in clay soils. Grapevine plantlets were cultivated in pots containing vineyard devoted soils with increasing contents of available Cu (25, 80, 100 and 165 mg kg−1), for 53 days. Photosynthesis and transpiration rates, and the quantum yield of photosystem II (Fv/Fm) were evaluated during the cultivation period. At the end of the experiment, the plant nutrient and leaf chlorophyll were...
Tipo: Artigo em periódico indexado (ALICE) Palavras-chave: Available Cu; Net photosynthesis; Maximum quantum yield; Root diameter; Vitis labrusca L; High copper; ?Red Niagara? plantlets; Vineyard soils; Root systems.
Ano: 2018 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1103407
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The interaction of high copper and zinc doses in acid soil changes the physiological state and development of the root system in young grapevines (Vitis vinifera). Repositório Alice
TIECHER, T. L; SORIANI, H. H.; TIECHER, T.; CERETTA, C. A.; NICOLOSO, F. T.; TAROUCO, C. P.; CLASEN, B. E.; DE CONTI, L.; TASSINARI, A.; MELO, G. W. B. de; BRUNETTO, G..
Old vineyards may present high copper (Cu) content in the soil due to the frequent application of Bordeaux fungicide to control leaf fungal diseases. Thus, many wine makers replace copper fungicides by those made of zinc (Zn) and it leads to the accumulation of these two elements in vineyard soils, fact that may potentiate the occurrence of physiological disorders and morphological changes in the plant root system. The aim of the current study was to assess the effects of high Cu and Zn contents in a sandy acid soil on the physiological state and development of the root system in young grapevines. The soil was taken from a vineyard from Southern Brazil, and then it was sieved and had its acidity and P and K contents corrected. Next, the soil was subjected...
Tipo: Artigo em periódico indexado (ALICE) Palavras-chave: Chlorophyll fluorescence; Root system; Photosynthetic pigments; Young grapevines; Old vineyards; Vineyard soils; Gas exchange; Heavy metals; Copper; Zinc; Acid soils.
Ano: 2018 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1103455
Registros recuperados: 5
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