The potential of Zea mays L. in remediating copper and zinc contaminated soils for grapevine production
De Conti L
MetadataShow full item record
The application of fungicides containing Cu and Zn in vineyards can lead to accumulation of these metals at toxic levels. The successive cultivation of maize in these areas can be an interesting alternative to alleviate the toxic levels of these metals in the soil. This greenhouse study aimed to assess whether the increase in Zn concentration in vineyard soils with high Cu concentration from Southern Brazil may cause further toxicity to maize plants, and to evaluate the feasibility of maize for phytoremediation of soils contaminated with Cu and Zn. Soil samples were collected from a vineyard soil with high Cu concentrations and an area of natural grassland with no history of cultivation. The vineyard soil was subjected to the addition of 0, 30, 60, 90, 180, and 270 mg Zn kg(-1), stored in pots in a greenhouse and sown with two maize crops for 35 days. The production of root and shoot dry matter, leaf Cu and Zn concentrations, chlorophyll a fluorescence parameters and photosynthetic pigments, and enzymatic activity of superoxide dismutase (SOD) and non-specific peroxidase (POD) were assessed in both crops. Increased Zn in a soil with high Cu concentrations has no effect on the soil solution Cu dynamics or Cu phytotoxicity potential in plants. Zn also proved potentially capable of causing phytotoxicity when present at high concentrations in soils, as shown by the decrease in root and shoot growth as well as the changes in chlorophyll a fluorescence and antioxidant system parameters, especially in plants grown in soils supplemented with greater doses of Zn. The decrease in soil organic matter and soil solution C potentiated the negative effects of Zn application on the shoot and root growth of maize plants. (C) 2015 Elsevier B.V. All rights reserved.
Showing items related by title, author, creator and subject.
Effects of zinc addition to a copper-contaminated vineyard soil on sorption of Zn by soil and plant physiological responses Tiecher TL; Ceretta CA; Tiecher T; Ferreira PAA; Nicoloso FT; Soriani HH; Rossato LV; Mimmo T; Cesco S; Lourenzi CR; Giachini AJ; Brunetto G (ACADEMIC PRESS INC ELSEVIER SCIENCE, 2016)The occurrence of high levels of Cu in vineyard soils is often the result of intensive use of fungicides for the preventive control of foliar diseases and can cause toxicity to plants. Nowadays many grape growers in Southern ...
Photosynthesis and growth of young grapevines intercropped with native grasses in soils contaminated with copper De Conti L; Melo GW; Ceretta CA; Tarouco C; Marques A; Nicoloso F; Tassinari A; Tiecher TL; Cesco S; Mimmo T; Brunetto G (ISHS, 2017)High copper (Cu) contents in vineyard soils characterized by long-term use of Cu-containing fungicides may cause physiological and nutritional disorders in young grapevines, limiting plant growth and sometimes compromising ...
Brunetto G; Tiecher TL; Hammerschmitt RK; Basso Facco D; Ferreira PAA; De Conti L; Oliveira Stefanello da Silva L; Mayer NA; Correa Antunes LE; Cesco S; Mimmo T (ISHS, 2017)In some areas dedicated to the cultivation of peach plants, soils are characterized by high levels of zinc (Zn) as a consequence of successive applications of Zn-containing fungicides and/or of animal manure as fertilizers. ...