Qualidade fisiológica de sementes de soja armazenadas com tratamentos a base de óxido de zinco, nutrientes e bioestimulantes

Abstract

Soybean (Glycine max (L.) Merrill) has become increasingly important in the current agricultural scenario, taking into account that the production of this crop is linked to the significant growth of agribusiness among the country's economic activities. Therefore The objective was to evaluate the physiological quality of soybean seeds stored with treatments based on zinc oxide, nutrients and biostimulants. A completely randomized design (DIC) was used, with four replications, in an 8x4 factorial scheme, with eight treatments and four storage times evaluated. The treatments were T0= control; T1= Booster Pro®; T2= CMZ Infinity® (normal dose); T3= Maxi Zinc®; T4= Concentrat Fix®; T5= Booster Pro® + CMZ Infinity®; T6= Booster Infinity®; T7= CMZ Infinity® (three times the normal dose). A dosage of 200 mL was used. 100 kg-1 of seeds, except for the control, where no treatment was applied and in T7 three times the recommended dose of CMZ Infinity was applied. The industrial treatment was used in seeds of the cultivar Brasmax Coliseu i2x (63iX65RSF I2x), carried out at Lar Cooperativa Agroindústrial. The times evaluated were 0, 30, 60 and 90 days after the completion of the treatment and beginning of the storage period. After treatment, soybean seeds were evaluated with the germination test, accelerated aging, initial growth and seedling dry mass. With the results of the work, it can be observed that the treatments were efficient in maintaining the vigor and viability of the soybean seeds since they were sown immediately, since the products lost efficiency during storage. The treatments showed no phytotoxic effect during seed storage. The treatments were not efficient in delaying the deterioration process. The treatments had no effect on seedling growth