Productive Increase in Soybeans from Hormone Treatment, Inoculation and Co-inoculation

Luiz Leonardo Ferreira *

Centro Universitário de Mineiros, Unidade de Biociências, GO, Brazil.

Neusmar Rodrigues Valentim Júnior

Centro Universitário de Mineiros, Unidade de Biociências, GO, Brazil.

João Carvalho de Morais Neto

Centro Universitário de Mineiros, Unidade de Biociências, GO, Brazil.

Ivan Ricardo Carvalho

Departamento de Ciências Agrárias, Universidade Regional do Noroeste do Estado do Rio Grande do Sul, RS, Brazil.

Marilaine de Sá Fernandes

Centro Universitário de Mineiros, Unidade de Biociências, GO, Brazil.

Ariana Bertola Carnevale

Centro Universitário de Mineiros, Unidade de Biociências, GO, Brazil.

Núbia Sousa Carrijo dos Santos

Centro Universitário de Mineiros, Unidade de Biociências, GO, Brazil.

Carmen Rosa da Silva Curvêlo

Departamento de Agronomia, Instituto Federal Goiano, IF Goiano, Urutaí, GO, Brazil.

Alexandre Igor de Azevedo Pereira

Departamento de Agronomia, Instituto Federal Goiano, IF Goiano, Urutaí, GO, Brazil.

*Author to whom correspondence should be addressed.


Abstract

The increase in productivity in soybean cultivation has been achieved by many Brazilian producers, due to the technological advances related to soil management, mineral nutrition, pest and disease control, genetic improvement, and the use of beneficial microorganisms via inoculation and co-inoculation. However, the application of inoculants based on Bradyrhizobium japonicum and Azospirillum brasilense still needs to be better studied among the many soybean cultivars available in the market. Therefore, the objective of this study is to evaluate the production increase in three soybean cultivars, through the application of synthetic hormones, inoculant and co-inoculant. The experimental design was a randomized complete block design with four repetitions, in a 3x6 factorial scheme, with three soybean cultivars (Desafio 8473, TMG 1180 and CD 2737) and six seed treatments (Control, Inoculation, Hormonal, Co-inoculation, Co-inoculation + Hormonal and Inoculation + Hormonal). The treatments with the diazotrophic bacteria (Inoculation + Co-inoculation) and Hormonal did not influence the yields of cultivars 'CD 2737' and 'Desafio 8473', which can only be cultivated with the standard seed treatment of the region. The 'TMG 1180' cultivar has it’s yield increased when it’s seeds are inoculated with Hormonal seed treatments and with diazotrophic bacteria in Co-inoculation.

Keywords: Biological fixation, bacteria fixing, seed treatment


How to Cite

Ferreira, Luiz Leonardo, Neusmar Rodrigues Valentim Júnior, João Carvalho de Morais Neto, Ivan Ricardo Carvalho, Marilaine de Sá Fernandes, Ariana Bertola Carnevale, Núbia Sousa Carrijo dos Santos, Carmen Rosa da Silva Curvêlo, and Alexandre Igor de Azevedo Pereira. 2020. “Productive Increase in Soybeans from Hormone Treatment, Inoculation and Co-Inoculation”. Journal of Experimental Agriculture International 42 (4):33-43. https://doi.org/10.9734/jeai/2020/v42i430497.

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