USO DE INDUTOR DE RESISTÊNCIA ASSOCIADO A FUNGICIDA NA CULTURA DO MILHO

Abstract

Corn (Zea mays) is one of the most important crops in Brazil, characterized by its various uses, ranging from animal feed to high-tech industry applications. This study aimed to evaluate the agronomic and productive characteristics of corn subjected to the use of resistance inducers and fungicides at the Instituto Federal Goiano – Ceres Campus. The experimental design was a randomized block design with 6 treatments (T1: Control, T2: 1 application of the inducer (0.8 L ha⁻¹), T3: 1 application of the fungicide (0.8 L ha⁻¹), T4: 1 application of the inducer (0.8 L ha⁻¹) with fungicide (0.8 L ha⁻¹), T5: 2 applications of the inducer (0.8 L ha⁻¹ + 0.8 L ha⁻¹) with fungicide (0.8 L ha⁻¹ + 0.8 L ha⁻¹), T6: 2 applications of the inducer (0.8 L ha⁻¹ + 0.8 L ha⁻¹)) with four replications. The plots consisted of four rows of five meters with a spacing of 0.50 m, with the two central rows considered as the useful area, excluding 0.50 m of border at the ends. The analyzed variables were: Plant Height (PH); Ear Height (EH); Ear Length (EL); Number of Rows of Kernels per Ear (NRKE); Number of Kernels per Row (NKR); Thousand-Kernel Weight (TKW); and Yield. The results showed no statistical difference. Treatment 5 (2 applications of the inducer with fungicide) had a productivity of 5192.5 kg ha-1, showing 24.92% more than the control, with 4156.5 kg ha-1, thus proving to be the best treatment.