Vigor de sementes e desempenho produtivo de híbridos de milho

Abstract

The relationship between seed vigor and performance are quite contradictory. For species that produce grains and vegetables, the effects of seed vigor can be expressed in the emergence, early growth, and development, with impacts on final yield. However, the persistence of this design may not be apparent in all phases, being more common in emergency.The objective was to evaluate the effects of seed vigor of corn on growth performance of hybrid plants of BM502 and BM810. The experiment was conducted in Rancho Alegre Farm in Itiquira, Mato Grosso (520m altitude). We used the design in a randomized block design in a 2 × 3 factorial design, with two maize (BM502 and BM810) and three force levels (high, medium and low), with four replications. The seeding was done with manual seeder 2,5 cm deep and spaced 0,5 meters between rows.The plots were 6 rows of 5 m, with only two lines were used as useful for evaluations area. Plant population / ha, seed yield / ha and yield per plant was evaluated. The level of seed vigor of maize hybrids BM502 and BM810 does not interfere in the establishment of the initial stand and grain yield per plant. The increase in force results in an increase in the productivity of maize hybrids.