Caracteres morfoagronômicos de acessos de milho doce

Abstract

The cultivation of sweet corn hybrids in Brazil has great expression for agribusiness. The high performance of the maize hybrids is a result of the heterotic effect achieved by the crossing of lineages that have good combinatorial capacity, which has sought the breeding programs. The objective of this work was to evaluate the genetic diversity between sweet corn accesses of the Federal University of Uberlândia, based on morphoagronomic characteristics. For the selection of plants, the mass selection method was used. The following characteristics were evaluated: Plant height (AP), Spike insertion height (AIE), stem diameter (DC), number of seeds per spike (NSE), seed weight (PS). Based on the data obtained, it was decided to select accesses with plant height equal to or greater than 150 cm, with a number of seeds greater than 100 seeds and a seed weight greater than 0.1027 g. Among the 374 accesses, only 17 met the criteria established for generation advancement.