Desempenho de cultivares de milho (Zea mays, L.) no município de Lábrea no Estado do Amazonas

Abstract

The use of new corn cultivars adapted to the regions is important to provide an increase in productivity, improving social and economic aspects of the regions, in addition to ensuring sustainability, reducing the selection pressure for diseases and pests in the regions. However, due to the high number of cultivars available on the market, there is a need for studies that select suitable cultivars for the regions. Thus, the objective of this work was to evaluate the agronomic performance of maize cultivars (Zea mays, L.) in the municipality of Lábrea, AM. The experimental design used was a randomized block design with four commercial corn hybrids (LG 36790 PRO 3; LG 36770 PRO 3; LG 3040 VIP 3; and LG 36300 VIP 3) in four blocks. To evaluate the performance of the materials, evaluations of agronomic characteristics related to plant development and productivity were carried out. The LG 36300 VIP 3 corn cultivar in the first year of cultivation showed better performances related to productivity. Cultivar LG 3040 VIP 3 exhibited the best values related to plant vegetative development. Cultivars LG 36790 PRO 3 and LG 36770 PRO 3 showed the worst performances for most of the studied variables, except for ear size and panicle size.