Asian Journal of Microbiology, Biotechnology & Environmental Sciences Paper

Vol 22, Issue 2, 2020; Page No.(391-394)

VARIABILITY OF CORN GENOTYPES IN THE BRAZILIAN AMAZON-CERRADO TRANSITION ZONE

LARA RYTHELLE SOUZA BEQUIMAN, WEDER FERREIRA DOS SANTOS, ELIAS CUNHA DE FARIAS, D√ČBORA RODRIGUES COELHO, LAURA CARNEIRO SILVA, LUELLY MACIEL OLIVEIRA, LAYANNI FERREIRA DOS SANTOS, EDUARDO TRANQUEIRA DA SILVA, RAFAEL MARCELINO DA SILVA, JEFFERSON DA SILVA

Abstract

The study of genotype divergence allows combinations of promising strains of hybrids aiming at higher productivity. Corn today has great importance and application for its prominence as a source of carbohydrates and vitamins in human food and in the formulation of animal feed. The geographic zone of transition between the Cerrado and the Brazilian Amazon Rainforest is a source of new corn genotypes that can be used at intersections. Thus, the genetic divergence of corn genotypes was estimated that allowed their combinations for greater grain yield and quality. The studies were conducted in the off-season of 2010.7 agronomic characteristics were used in a multivariate model in 6 genotype groups using the Tocher optimization method. Results were presented according to Mahalanobis (D2) distances, with combinations P13 x P17 and P9 x P17 the most promising for grain yield, diameter, and height of the spike.