Use of phosphorus fertilization and mycorrhization as strategies for reducingcopper toxicity in young grapevines

Autor: BRUNETTO, G., ROSA, D. B., AMBROSINI, V. G., HEINZEN, J., FERREIRA, P. A. A., CERETTA, C. A., SOARES, C. R. F. S., MELO, G. W. B. de, SORIANI, H. H., NICOLOSO, F. T., FARIAS, J. G., DE CONTI, L., SILVA, L. O. S., SANTANA, N., COUTO, R. R., JACQUES, R. J. S., TIECHER, T. L.
Přispěvatelé: Gustavo Brunetto, Soil Science Department of Federal University of Santa Maria (UFSM), 97105-900, Santa Maria, RS, Brazilb, Daniel J. Rosa, Centre for Biological Sciences, Department of Microbiology, Immunology and Parasitology, Federal University of Santa Catarina, Florianopolis, SC, Brazilc, Vítor G. Ambrosini, Centre for Biological Sciences, Department of Microbiology, Immunology and Parasitology, Federal University of Santa Catarina, Florianopolis, SC, Brazil, Janaina Heinzen, Centre for Biological Sciences, Department of Microbiology, Immunology and Parasitology, Federal University of Santa Catarina, Florianopolis, SC, Brazilc, Paulo A. A. Ferreira, Soil Science Department of Federal University of Santa Maria (UFSM), 97105-900, Santa Maria, RS, Brazilb, Carlos A. Ceretta, Soil Science Department of Federal University of Santa Maria (UFSM), 97105-900, Santa Maria, RS, Brazilb, Cláudio R.F.S. Soares, Centre for Biological Sciences, Department of Microbiology, Immunology and Parasitology, Federal University of Santa Catarina, Florianopolis, SC, Brazilc, GEORGE WELLINGTON BASTOS DE MELO, CNPUV, Hilda H. Soriani, Forestry Department, Federal University of Santa Maria, Campus Frederico Westphalen, 98400-000, Frederico Westphalen, RS, Brazil, Fernando T. Nicoloso, Biology Department, Center of Natural and Exact Sciences, Federal University of Santa Maria (RS), 97105-900 Santa Maria, RS, Brazil, Júlia G. Farias, Biology Department, Center of Natural and Exact Sciences, Federal University of Santa Maria (RS), 97105-900 Santa Maria, RS, Brazil, Lessandro De Conti, Federal Institute Farroupilha, Campus Alegrete, 97555-000, Alegrete, RS, Brazi, Lincon O. S. Silva, Soil Science Department of Federal University of Santa Maria (UFSM), 97105-900, Santa Maria, RS, Brazil, Natielo Santana, Soil Science Department of Federal University of Santa Maria (UFSM), 97105-900, Santa Maria, RS, Brazil, Rafael R. Couto, Centre for Biological Sciences, Department of Microbiology, Immunology and Parasitology, Federal University of Santa Catarina, Florianopolis, SC, Brazilc, Rodrigo J.S. Jacques, Soil Science Department of Federal University of Santa Maria (UFSM), 97105-900, Santa Maria, RS, Brazilb, Tadeu L. Tiecher, Federal Institute Farroupilha, Campus Alegrete, 97555-000, Alegrete, RS, Brazi.
Jazyk: angličtina
Rok vydání: 2019
Předmět:
Zdroj: Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA-Alice)
Empresa Brasileira de Pesquisa Agropecuária (Embrapa)
instacron:EMBRAPA
ISSN: 0304-4238
Popis: Established vineyard soils may have high copper (Cu) contents due to the ongoing foliar applications of copper-based fungicides. In viticulture, the replacement of old vineyards with new vines is common practice, however,limited by Cu excess in soil and its toxicity to young grapevines. The application of phosphorus (P) and ar-buscular mycorrhizal fungi (AMF) inoculation are potential strategies to reduce Cu toxicity to young grapevines.This study aimed to assess the effects of phosphorus fertilization and AMF (Rhizophagus clarus) inoculation ongrowth and physiological parameters of young grapevines grown in soil with high Cu content. The experimentwas conducted in a greenhouse, where natural grassland soil was artificially contaminated by the addition of60 mg kg−1Cu. The soils were treated with and without AMF inoculation, combined with additions of 0, 40 and100 mg P kg−1. After 90 days of cultivation, grapevine plants were assessed for chlorophyllafluorescence,photosynthetic pigment contents, superoxide dismutase (SOD) activity, plant height, plant biomass, and con-centrations of Cu and P in roots and shoots. Phosphorus fertilization promoted increases in seedling growth(related to the increase of total P concentration in roots and shoots), soluble Pi concentration in leaves, and thequantum yield of the PSII (YII) (associated with a reduction in shoot Cu concentration). The AMF inoculationincreased the concentration of P in roots and shoots, soluble Pi in leaves and electron transport rate (ETR).Phosphorus fertilization and inoculation of grapevines with AMF are strategies capable of reducing Cu toxicity inyoung grapevines. Made available in DSpace on 2020-01-09T00:39:35Z (GMT). No. of bitstreams: 1 1s2.0S0304423819300342main.pdf: 737187 bytes, checksum: e56f2e19f3c7c1c42fd8c46862c1afa4 (MD5) Previous issue date: 2019
Databáze: OpenAIRE
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