TECHNICAL AND ECONOMIC PERFORMANCE OF MAIZE GENOTYPES WITH DIFFERENT GENETIC BASES SUBJECTED TO DIFFERENT LEVELS OF INVESTMENT IN SANTA CATARINA, BRAZIL
DOI:
https://doi.org/10.18512/ijms2026e1288Abstract
The state of Santa Catarina has a deficit in maize production to meet the demand
for animal feed, due to the reduction in the area cultivated with the cereal, which has been mainly
replaced by soybeen crops. This work aimed to evaluate the technical and economic viability of
different investment levels and maize genotypes with different genetic bases. The experiments were
conducted in Lages-SC, during the 2017/2018 and 2018/2019 growing seasons. The experimental
design was a randomized complete block design in split-plots. In the main plot, four investment levels
(low, medium, high, and very high) were evaluated, differing in plant population, fertilization, seed
treatment, and disease, pest, and weed management. In the subplots, four genotypes were evaluated:
SCS155 Catarina (OPV, open-pollinated variety), AG1051 (DH, double hybrid), AG5055 (TH, triple
hybrid), and AG9025PRO3 (SH, single hybrid). Agronomic evaluations were conducted, including
grain yield and its components, along with economic analysis. The data were analyzed using the
F-test and, when significant, the means were compared using Tukey’s test at the 5% significance
level. The single hybrid AG9025PRO3 showed higher grain yield than the other genotypes, regardless
of investment level. The lowest investment level resulted in a higher net margin, regardless of the
genotype used. Production systems with higher production costs and yields proved more economically
viable when using the single hybrid AG9025PRO3. The economic viability of maize cultivation, at
different investment levels, depends on the yield achieved and the price paid for the grain.
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Copyright (c) 2026 Hugo François Kuneski, Luís Sangoi, Antonio Eduardo Coelho, Marcos Cardoso Martins Júnior, Rodrigo Kandler, Lucieli Santini Leolato, Laura Alievi Tirelli, José Fernando Márquez
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