Efeito de reguladores de crescimento e estruturadores de planta na cultivar BMX Coliseu

Abstract

The use of growth regulators is a technology that reduces plant height growth, is tolerant to lodging, and induces more lateral branches, increasing the formation of reproductive nodes, which results in greater flower production and number of pods per plant. The present study sought to verify the effects of growth regulators and plant structuring agents on a cultivate (BMX Coliseu). The experiment was conducted in the 2022/2023 agricultural harvest at CTIC - Coopertradição Technology and Innovation Center, in Pato Branco, in the state of Paraná, using a randomized block design with 20 treatments and one control. Agronomic and productivity traits were evaluated, namely, plant height, number of productive nodes, number of productive branches, number of pods per plant, number of pods on the main stem, number of pods on the branches, thousand-grain weight, average internode distance, thousand-grain weight, and grain yield. The data were subjected to analysis of variance. After verifying assumptions, data analysis was performed using the Genes statistical software. The means were grouped by the Skott-Knott test at 5% probability of error. The lowest plant height (93.44 cm) was observed in treatment 10 (Stimulate + Stopping Go) and the highest grain yield (83.95 sc/ha-1) was observed with an application of Booster PRO at the V4 stage (treatment 7). The use of growth regulators proved to be a viable strategy to reduce plant height and/or maximize grain yield components.