USO DE BIOMAPHOS NO TRATAMENTO DE SEMENTES DE HIBRIDOS DE MILHO CULTIVADO NA SAFRINHA

Abstract

The objective of this study was to evaluate the agronomic characteristics of the corn crop, using different hybrids and doses of the inoculant Biomaphos. The experiment was carried out in Nova Glória (GO), on Fazenda Nova Oriente. The experimental design used was a randomized block design in a 2x4 factorial scheme, with two maize hybrids cultivars (MG 607PWU and MG 408PWU) and five doses of the inoculant BiomaPhos® in the seed (0, 2, 4, 6 and 8 mL kg-1 seed ) with repetitions. Data were subjected to analysis of variance and compared by Tukey test at 5% significance. The variables plant height, ear height, number of grain row and number of grains per row did not show significant differences for the hybrids and doses used. For the variable productivity, there was a significant difference as for the hybrids, where the hybrid MG 408PWU presented a superior result (8075.91 kg ha-1) than the hybrid MG 607PWU that presented a result of 7394 kg ha-1. The mass of a thousand grains presented linear adjustment in function of the doses, presented for the dose of 8 ml kg-1 of BiomaPhos® 16, 25%. Under the conditions studied, the mass of a thousand grains gains density with the use of BiomaPhos® in the treatment of seeds with 8 mL kg-1 of seed, being the indicated dose.