COMPATIBILITY OF AZOXYSTROBIN AND CYPROCONAZOLE ON PLANT GROWTH-PROMOTING MICROORGANISMS

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DOI:

https://doi.org/10.32404/rean.v7i4.5281

Abstract

Avoiding the toxicity effect of chemical fungicides on rhizobacteria is a sustainable alternative for agroecosystem management. Rhizobacteria, whose bioprotective and plant growth-promoter potential have been reported in the literature, lack studies on their performance in integrated management with pesticides. Thus, this study aimed to evaluate the effects of azoxystrobin + cyproconazole on the growth of Bacillus subtilis, Streptomyces seoulensis, and Bradyrhizobium japonicum. Three independent experiments were set up, i.e., one for each microorganism, and carried out in a completely randomized design in a factorial scheme (3 × 6), with three doses (recommended by the manufacturer, half, and twice) and six periods of evaluations (48, 96, 144, 192, 240, and 288 hours), with three replications. Growth inhibition rings were evaluated. Azoxystrobin + cyproconazole at all tested doses is compatible with B. subtilis. The use of azoxystrobin + cyproconazole affected the growth of B. japonicum and S. seoulensis, which were sensitive to all its doses until 288 hours after inoculation.

Author Biographies

Weslany Silva Rocha, Universidade Federal do Tocantins, Campus Palmas, Palmas, Tocantins.

Doutora em Produção Vegetal e técnica de laboratório de Fitoterapia da Universidade Federal do Tocantins, campus de Palmas -TO.

Mara Caroline Alves da Silva, Universidade Federal do Tocantins, Campus Gurupi, Gurupi, Tocantins.

Engenheira Agrônoma.

Gilberto Coutinho Machado Filho, Universidade Federal do Tocantins, Campus Gurupi, Gurupi, Tocantins.

Doutorando no Programa de Pós-graduação em Produção Vegetal - UFT.

Mauro Gomes dos Santos, Universidade Federal do Tocantins, Campus Gurupi, Gurupi, Tocantins.

Doutorando no Programa de Pós-graduação em Produção Vegetal - UFT.

Aloísio Freitas Chagas Júnior, Universidade Federal do Tocantins, Campus Gurupi, Gurupi, Tocantins.

Professor doutor do curso de Agronomia e do curso de mestrado e doutorado no Programa de Pós-graduação em Produção Vegetal - UFT.

Manoel Mota dos Santos, Universidade Federal do Tocantins, Campus Gurupi, Gurupi, Tocantins.

Professor doutor do curso de Agronomia e do curso de mestrado e doutorado no Programa de Pós-graduação em Produção Vegetal - UFT.

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Published

2020-11-30

How to Cite

Rocha, W. S., Silva, M. C. A. da, Machado Filho, G. C., dos Santos, M. G., Chagas Júnior, A. F., & Santos, M. M. dos. (2020). COMPATIBILITY OF AZOXYSTROBIN AND CYPROCONAZOLE ON PLANT GROWTH-PROMOTING MICROORGANISMS. REVISTA DE AGRICULTURA NEOTROPICAL, 7(4), 95–100. https://doi.org/10.32404/rean.v7i4.5281

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Vol. 7 No. 4 (2020): REVISTA DE AGRICULTURA NEOTROPICAL

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