Germinação e desempenho de plântulas de soja tratadas com cobalto, molibdênio, níquel e bioestimulante

Abstract

The cultivation of Soy (Glycine max) is considered one of the main economic activities in the world market, being one of the main crops consumed and produced worldwide, behind corn, wheat and rice. Seed quality is being focused on in all aspects, and is increasingly required and valued. The soybean farmers recognize that seed treatment is an important tool to improve the performance of seeds and seedlings in the field, so this research aims to evaluate the use of the biostimulant (Stimulate®) and the nutritional complexes RayNitro® and UP! Seed ® on germination and seedling performance when applied in seed treatment. The research was carried out in two stages, one in the Seed Analysis Laboratory and the other in the garden grounds of the Centro Universitário do Sul de Minas - UNIS, municipality of Varginha, south of Minas Gerais, from September to November 2019 The seeds were previously treated, in plastic bags, before sowing with the products: T1: Stimulate (biostimulant); T2: RayNitro® composed of cobalt (Co) and molybdenum (Mo); T3: UP! Seed® composed of Co, Mo and Nickel (Ni); and T4: Witness (without treatment). The emergence speed index (IVE), percentage of germination and vigor for seedling performance were evaluated, where the data obtained were subjected to analysis of variance by the F test and the treatment averages compared by the Scott-Knot test (1974) to the 5% probability level. The results do not show statistical significance for any of the treatments in all evaluated parameters.