Agronomic Performance of Corn Cultivars in Low-Altitude in the Cerrado-Amazon Ecotone
Weder Ferreira dos Santos
Department of Bioprocess Engineering and Biotechnology, Federal University of Tocantins, Gurupi, Brazil.
Lara Rythelle Souza Bequiman
Department of Agronomy, Federal University of Tocantins, Gurupi, Brazil.
Lucas Carneiro Maciel *
Department of Agronomy, Federal University of Tocantins, Gurupi, Brazil.
Joênes Mucci Peluzio
Department of Plant Production, Federal University of Tocantins, Gurupi, Tocantins, Brazil.
Osvaldo José Ferreira Júnior
Department of Plant Production, Federal University of Tocantins, Gurupi, Tocantins, Brazil.
Layanni Ferreira Sodré
Department of Plant Production, Federal University of Tocantins, Gurupi, Tocantins, Brazil.
Talita Pereira de Souza Ferreira
Department of Bioprocess Engineering and Biotechnology, Federal University of Tocantins, Gurupi, Brazil.
Fernando Barnabé Cerqueira
Department of Agronomy, Guaraí College, Guaraí, Brazil.
Lucas Alves de Faria
Department of Plant Production, Federal University of Tocantins, Gurupi, Tocantins, Brazil.
*Author to whom correspondence should be addressed.
Abstract
e of this study was to evaluate the agronomic performance of corn cultivars for grain production in the south at low altitude in the Cerrado-Amazon ecotone.
Place: The research was carried out at Sítio Vitória (8°18'32.0"S, 50°36'58.0"W, 278 MASL), in the south of the state of Pará, Brazil.
Study Design: The experimental design was randomized blocks with twelve treatments and three replications. The treatments were eight corn hybrids: AG 1051, AG 8088, BM 3051, BR 2022, BR 205, BR 206, BRS 3046 and PR 27D28; and four open pollination populations: AL BANDEIRANTE, ANHEMBI, CATIVERDE and M 274.
Methodology: Sowed on January 28, 2019. The following characteristics were evaluated: ear height, plant height, number of grains per row, ear diameter, ear length, ear weight and grain yield.
Results: The cultivars showed a difference for all traits. The grain yield of the cultivars ranged from 4,567 kg ha-1 (BR 205) to 9,450 kg ha-1 (AG 1051).
Conclusion: The hybrids AG 1051 and BM 3051 were the ones that stood out the most, had the best performance in the Cerrado-Amazon ecotone.
Keywords: Grain yield, hybrids, populations of open pollination, yield components, Zea mays L.