2026-08-112026-08-112022-02-21Freire, Winandy Araújo. Características agronômicas, custo de produção e produtividade de híbridos de milho para silagem no semiárido alagoano. / WinandyAraújo Freire.–2022. 1CD-ROM: (1 arquivo, 304 KB). CD-ROM contendo o arquivo no formato PDF do trabalho acadêmico com 57 folhas, acondicionado em caixa acrílica ( 12,5 cm x 14 cm). Trabalho de Conclusão de curso (Graduação em Engenharia Agronômica) - Instituto Federal de Alagoas, Campus Piranhas, Piranhas, 2022. Orientação: Prof. Dr. Ênio Gomes Flor Souza 1. Zea mays L. 2. Ensilagem. 3. Produtividade. 4. Sequeiro. I. Título.https://repositorio.ifal.edu.br/handle/123456789/3151Corn is one of the most cultivated crops in the country, providing high economic returns. However, this return occurs when all inputs are chosen and applied correctly, one of them being the genetic material, which presents different agronomic behaviors based on its degree of adaptation to the conditions of the growing region. The analysis of the agronomic characteristics of different genetic materials allows the indication of which one has the highest productivity. In this sense, the objective of the research was to evaluate the agroeconomic characteristics of corn hybrids for silage in the semiarid region of Alagoas. The experiment was carried out in the experimental field of Federal Institute of Alagoas, Campus Piranhas, in rainfed cultivation, under a randomized block design, with eight treatments and four replications. The treatments were eight corn hybrids (K9555 VIP3, R9080 PRO2, K9822 VIP3, K9606 VIP3, K9510 Conventional, K8774 PRO3, RB9006 PRO2, and 2B587 PW). In the pasty/farinaceous grain stage, the following were evaluated: green and dry mass of leaves, stem, ear, tassel, and total (g plant-1); green and dry mass yields (t ha-1) and dry mass percentage (%). For the economic variables, gross income, net income, rate of return, and profitability index were determined. The hybrid K9555 VIP 3, K9822 VIP 3, and the K9510 Conventional were the group that had the highest plant height. Regarding the number of live leaves, the hybrids K9555 VIP 3 and K9510 Conventional obtained the highest values. Regarding the number of dead leaves, the K9555 VIP 3 and the K9510 Conventional presented the lowest results. For the variable percentage of the dry mass of leaves, the hybrid that reached the highest result was 2B587 PW (43.92 %). The same occurred for the variable percentage of stem dry mass, with 29.13 %, not differing from the hybrid K8774 PRO 3 with 24.77 %. Regarding the percentage of ear dry mass, the 2B587 PW treatment presented the lowest result (24.34 %). The highest average value for dry mass productivity was obtained by the hybrid R9080 PRO 2 with 11.04 t ha-1, but it did not differ statistically from the others, except for the 2B587 PW with 5.62 t ha-1. The 2B587 PW is the least recommended for silage and the K9555 VIP 3 and K9510 Conventional are the most recommended. The total production cost averaged R$ 5,863.51 ha-1. Inputs were the most representative items in the average cost (53.62 %), followed by harvest operations (30.28 %). All hybrids presented equal economic results, but the 2B587 PW hybrid is the least recommended because it has the same production cost, but undesirable agronomic characteristics.ptAttribution-NonCommercial-NoDerivs 3.0 BrazilZea mays LEnsilagemProdutividadeSequeiroEnsilingProductivityRainfedTrabalho de Conclusão de CursoCIENCIAS AGRARIAS::AGRONOMIA