Ácido acetilsalicílico e ácido ascórbico no desempenho germinativo de sementes de soja

Abstract

Among the challenges faced in soybean production, the seed is a factor directly linked to the success of the crop. The physiological potential provides information about the germination percentage and vigor that a seed lot will express. Germination involves various metabolic events, and during the imbibition process, seed hydration triggers physiological and biochemical events, which may result in cellular metabolismo disorganization. For the formation, development, and growth of the embryo, proper cell functioning is necessary. Thus, the present study aimed to evaluate the reactivation of cellular metabolism in soybean seeds through their imbibition with different doses of acetylsalicylic acid and ascorbic acid, focusing on their physiological quality. The experiment was conducted at the Seed Analysis Teaching Laboratory of the Federal Technological University of Paraná, Dois Vizinhos campus. For the experiment, seeds of the cultivar BMX TROVÃO I2 X® were used, imbibed in four doses of each acid, totaling eight treatments plus a control. The response variables measured included tests to evaluate physiological parameters such as germination, seedling length, dry matter mass, emergence speed index, emergence speed coefficient, mean emergence time, mean emergence speed, and cumulative emergence. The experiment followed a completely randomized design. After obtaining the results, the variables were subjected to analysis of variance (ANOVA), separately for each acid. In case of significance (p<0.05), and the doses were subjected to regression analysis using the Rbio statistical program. Based on the observations, it was concluded that the imbibition of soybean seeds with acetylsalicylic acid and ascorbic acid had a significant effect, showing a positive impact on physiological parameters.