Isolated and combined growth promoting microorganisms altering root and shoot development of corn seedlings

Dennis Ricardo Cabral Cruz; Mariana Aguiar Silva; Adriano Stephan  Nascente; Izabely Vitória Lucas  Ferreira; Alline Emannuele Chaves Ribeiro; Juracy  Barroso Neto

Dennis Ricardo Cabral Cruz Universidade Federal de Goiás https://orcid.org/0000-0002-5209-7751
Mariana Aguiar Silva Agronomy Department, Agronomy School, Federal University of Goiás, Rodovia Goiânia-Nova Veneza, km 0, Campus Samambaia, Goiânia/GO, 74001-970, Brazil. https://orcid.org/0000-0003-0297-5576
Adriano Stephan Nascente Brazilian Agricultural Research Corporation (EMBRAPA), Rice and Beans Research Center, P.O. Box 179, Highway 462, km 12, Santo Antônio de Goiás, State of Goiás, 75375-000, Brazil https://orcid.org/0000-0002-6014-3797
Izabely Vitória Lucas Ferreira Agronomy Department, Agronomy School, Federal University of Goiás, Rodovia Goiânia-Nova Veneza, km 0, Campus Samambaia, Goiânia/GO, 74001-970, Brazil. https://orcid.org/0000-0002-6027-5474
Alline Emannuele Chaves Ribeiro Rural Development Department, Agronomy School, Federal University of Goiás, Rodovia GoiâniaNova Veneza, km 0, Campus Samambaia, Goiânia/GO, 74001-970, Brazil. https://orcid.org/0000-0001-6048-0235
Juracy Barroso Neto Agronomy Department, Agronomy School, Federal University of Goiás, Rodovia Goiânia-Nova Veneza, km 0, Campus Samambaia, Goiânia/GO, 74001-970, Brazil. https://orcid.org/0000-0002-0424-8447

Keywords: Zea mays L, rizobactérias, Trichoderma, sustentabilidade, biotecnologia

Abstract

Multifunctional microorganisms can significantly contribute to improve the initial performance of plants, being an innovative biotechnology when seeking sustainable development. The aim of this work was to determine the effects of the application of different growth promoting microorganisms individually and in combination on the root and aerial development of corn seedlings. The experiment was carried out under controlled conditions in a completely randomized design. Twenty-six treatments consisted of isolated or combined microbiolization of corn seeds, with the rhizobacteria BRM 32109, 32110 and 63573 (Bacillus sp.), BRM 32111 and 32112 (Pseudomonas sp.), BRM 32113 (Serratia marcenses), BRM 32114 (Serratia sp.), Ab-V5 (Azospirillum brasilense) and BRM 63574 (Azospirillum sp.), the fungus BRM 53736 (Trichoderma koningiopsis) and a control treatment. The data obtained were analyzed using principal component analysis or multivariate analysis. Seedlings treated with BRM 32112, BRM 63574 + BRM 63573, BRM 63574, BRM 53736, BRM 63574 + BRM 32114, BRM 32114 + BRM 53736, Ab-V5 and BRM 32114 showed increases of up to 40% in root and shoot development compared to untreated seedlings. The use of multifunctional microorganisms is a promising alternative for better root and aerial development of corn seedlings, and microbiolization is an efficient inoculation technique.

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References

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