Efeito de bioestimulantes e nutrientes em características fisiológicas de sementes de soja

Abstract

There is a great need for studies on the influence of pre-germination 21 treatments on germination and seedling quality of soybean seeds. Therefore, the objective 22 of this work was to evaluate different germinative treatments with biostimulants and 23 nutrients in soybean seeds. The statistical design used was completely randomized, with 24 eight treatments and four replications. Treatments consisted of application of Stimulate, 25 Baltiko, Nicotinamide, Activate seeds, Control Activate Seeds, Cobalt + Molybdenum

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26 and Azospirillum, plus the control treatment. The germination test, first germination 27 count, emergence, germination speed index, shoot and root length, shoot and root dry 28 mass, and total dry mass were performed. The use of biostimulant and micronutrient is 29 able to improve the physiology of soybean seeds. The use of Azospirillum brasilense 30 promoted gains in the biometric growth characteristics of soybean seeds, in addition to 31 greater germination speed. The use of Activa and Baltic provided greater gain in dry mass 32 for soybean seeds.