Desempenho agronômico de cultivares de soja em diferentes épocas de semeadura no município de Pato Branco - Paraná

Abstract

No cultural practice is more important for soybeans than sowing time, which is the variable that most impacts grain yield. This study was carried out with the aim of evaluating the response of some soybean cultivars (Glycine max (L.) Merrill) to sowing time. The research was reproduced in the experimental area of the Cooperativa Agropecuária Tradição (Coopertadição) in the municipality of Pato Branco-PR. Fourteen soybean cultivars were evaluated (M 6100 XTD, BMX Fibra IPRO, TMG 7062 IPRO, BMX Zeus IPRO, M 6110 I2X, NS 6220 IPRO, DM 66i68 IPRO, TMG 7067 IPRO, DM 70i71 IPRO, BMX Lótus IPRO, BMX Cromo TF IPRO, BMX Coliseu I2X e BMX Nexus IPRO) and three sowing dates (11/03/2021, 12/04/2021, and 01/06/2022). The experiment was controlled in strips, with each plot comprising 4.15 m x 10 m (41.5 m2), with a spacing of 0.45 m and a density of 13 plants per linear meter. The cultural treatments were carried out according to the technical recommendations of the culture In the plots throughout the development of the culture, the characters from, days from emergence to flowering (DF), days from flowering to regulatory regulation (DM), total cycle (CT ), grain yield in kg ha1 (RE) and Weight of 1000 seeds (MM). Sowing on November 3rd resulted in a higher PMS yield for most cultivars. The cultivars with superior performance were BMX Zeus IPRO and DM 66i68 IPRO.