Emergência de milho em função do tratamento das sementes com inseticida, fungicida e bioestimulante

Abstract

Corn hybrid seeds carrying the largest technological packages of modern agriculture. This has led to increasing investments in quality and protection, and with the introduction of events that have incorporated features such as resistance to diseases, insects and herbicides, increases the initial cost of crop deployment, increasing the benefit of the seed and the potential genetic profit may be observed in productivity results achieved. Considering the importance of industrial seeds treatment this study aimed to evaluate the effect on emergence of corn seeds submitted to chemical treatment. Were used seeds of 10 varieties of corn hybrid, the breeders Dow AgroSciences (2A550 POWER CORE, 2B433 POWER CORE, 2B587 POWER CORE, 2B604 POWER CORE, 2B688 POWER CORE and 2B710 POWER CORE), Agroceres (AG7098 PRO², AG9040 YG e AG5011 YG) and Coodetec (CD384 HX). Four samples of 250g of each hybrid lot were separated, these fractions were treated with three treatments and one of them did not received any additional treatment. Therefore, treatments for each hybrid, were identified as follows: TR1 – seeds without any additional treatment; TR2 - FERTIACTYL GR Biostimulant; TR3 – Insecticide CROPSTAR + DEROSAL PLUS Fungicide; TR4 - CROPSTAR Insecticide + DEROSAL PLUS Fungicide + FERTIACTYL GR Biostimulant. It was used the recommended doses by manufacturers. Emergence of corn hybrid seeds treated with insecticide, fungicide and biostimulant is differentiated between hybrids and products. Physiological quality of corn seeds remains at satisfactory levels when subjected to treatment combinations tested for at least 60 days.