2015
DOI: 10.15361/1984-5529.2015v43n4p427-435
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Uso de calcário na amenização da toxidez de cobre em videiras jovens

Abstract: ResumoA aplicação de calcário pode diminuir a toxidez de Cu em videiras jovens. O trabalho objetivou avaliar o efeito da calagem em solos com adição de Cu como estratégia de amenizar a toxidez do metal pesado em videiras jovens. O experimento foi conduzido em casa de vegetação utilizando solo coletado em uma área sem histórico de cultivo. O solo foi dividido em três porções iguais, que receberam doses de calcário correspondentes a 0, 12,6 e 25,2 Mg ha -1 . Após 45 dias de incubação, o solo recebeu doses cresce… Show more

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Cited by 7 publications
(3 citation statements)
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“…In contrast, Toselli et al (2009) observed that high soil Cu concentration decreased P, Ca, Mg and Fe in the leaves of young 'Sangiovese' plants. In a study with young 'Red Niagara' grapevines, the same cultivar used in this study, Oliveira et al (2015) found a decrease of N, P, K, Ca and Mg concentration in plant tissues.…”
Section: Discussionsupporting
confidence: 58%
See 1 more Smart Citation
“…In contrast, Toselli et al (2009) observed that high soil Cu concentration decreased P, Ca, Mg and Fe in the leaves of young 'Sangiovese' plants. In a study with young 'Red Niagara' grapevines, the same cultivar used in this study, Oliveira et al (2015) found a decrease of N, P, K, Ca and Mg concentration in plant tissues.…”
Section: Discussionsupporting
confidence: 58%
“…The magnitude of Cu sorption by the soil is reduced with time when fungicides containing the metal are used due to the saturation of the functional groups at the particles surface, increasing Cu concentration in the soil solution and its https://doi.org/10.1016/j.plaphy.2018.05.011 Received 5 January 2018; Received in revised form 4 May 2018; Accepted 7 May 2018 availability for roots, leading to a potential plant toxicity risks (Fernández-Calviño et al, 2010;Girotto et al, 2016). The toxicity induced by Cu in grapevine may cause several structural modifications in the roots, such as reduction of root elongation, cortex cell plasmolysis (Juang et al, 2012), increased root diameter and alterations in the cell division zone (Ambrosini et al, 2015); along with modifications in nutrient distribution among plant organs (Cambrollé et al, 2015a;Melo et al, 2008;Oliveira et al, 2015;Toselli et al, 2009); and physiological changes, such as oxidative stress (Miotto et al, 2014), reduced concentration of photosynthetic pigments in the leaves (Cambrollé et al, 2013;Oliveira et al, 2015;Tiecher et al, 2017) and modification in gas exchange parameters and chlorophyll fluorescence (Cambrollé et al, 2013(Cambrollé et al, , 2015aRosa et al, 2014). The effects of Cu toxicity depend on the amount of the metal available, but also on the soil type, duration of the exposure to Cu, growth conditions and plant genotype (Adrees et al, 2015;Ambrosini et al, 2015;Rosa et al, 2014).…”
Section: Introductionmentioning
confidence: 99%
“…O calcário, quando misturado ao solo e com água, dissolve-se, e o carbonato de cálcio dissocia-se. Os produtos da dissolução do calcário reagem com os coloides do solo e, nessa reação, elevam o pH, os teores de Ca 2+ e Mg 2+ e a saturação por bases, diminuem o Al 3+ e o Mn 2+ trocáveis no solo e também aumentam tanto a absorção de P como reduzem a fixação desse elemento no solo (SORATTO & CRUSCIOL, 2008;NDUWUMUREMYI, 2013;OLIVEIRA et al, 2015).…”
Section: Introductionunclassified