Cause and effect relationships, multivariate approach for inoculation of Azospirillum brasilense in corn.

Autor: Leonardo Ferreira, Luiz, Santos, Gean Ferreira, Ricardo Carvalho, Ivan, de Sá Fernandes, Marilaine, Carnevale, Ariana Bertola, Lopes, Karine, Fonseca Prado, Roselaine Lages, Lautenchleger, Francine, de Azevedo Pereira, Alexandre Igor, da Silva Curvêlo, Carmen Rosa
Předmět:
Zdroj: Communications in Plant Sciences; 2020, Vol. 10, p37-45, 9p
Abstrakt: Beneficial bacteria to corn crop, such as Azospirillum brasilense, can bring consistent gains for the farmer. In this sense, the objective of this work was to evaluate the cause and effect relationships and multivariate approach of Azospirillum brasilense inoculation in corn genotypes. The study was conducted in the municipality of Mineiros-GO, Brazil. The experimental design was a randomized block in 12x2 factorial, corresponding to twelve corn hybrids (20A78, 2B587, 2B610, 30F53, CD3770, CD384, DKB310, LG36701, LG6030, MG652, P3646 and PB9110), submitted to (absence and presence) of A. brasilense. The soil preparation was carried out in the conventional system with population of 60 thousand plants. Formulated 8-25-15 at a dose of 480 kg ha-1 was used. Pest control was performed when necessary. At the end of the experiment the variables were taken. The obtained data were submitted to the assumptions of the statistical model, verifying the normality and homogeneity of the residual variances, as well as the additivity of the model. Analyzes were performed at the Rbio interface of R and Genes. The summary analysis of variance with the mean square MS and significance by the F test revealed significant interaction between hybrid x A. brasilense. Corn hybrids showed higher expressiveness in yield components in the presence of Azospirillum brasilense applied in seed treatment. The number of grains per ear and the thousand grain mass were directly responsible for the increase of corn hybrids yield in the presence and absence of Azospirillum brasilense. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index