Tecnologia stoller : efeitos sobre a qualidade de grãos de soja

Abstract

The inducing resistance in plants is the activation of defense responses against pathogens, through the use of organic or inorganic compounds. The use of these compounds may reduce the incidence of several phytopathogenic fungi that influence the quality of soybeans. Thus, the objective of this work to determine the physical, physiological and sanitary quality of grain, cultivate Monsoy ensure 8372 IPRO submitted to application product Stoller® in different doses associated with fungicide to test your potential in the control of foliar diseases of soybeans . The experimental design was randomized blocks, with 10 treatments and 5 repetitions, totaling 50 plots. The treatments were: T1 - treatment control; T2 -Product Stoller (300 mL ha-1), without fungicide; T3 - Product Stoller (600 mL ha-1), without fungicide; T4 - Product Stoller (900 mL ha-1), without fungicide; T5 - Product Stoller (1200 mL ha-1), without fungicide; T6 - control with fungicide, producer; T7 - Product Stoller (300 mL ha-1), with a fungicide; T8 - Product Stoller (600 mL ha-1), with a fungicide; T9 - Product Stoller (900 mL ha-1), with a fungicide; T10 - Product Stoller (1200 mL ha-1), with a fungicide. The quality of grain was determined by means of physical properties: bulk density, real density, 1000 grain mass and variables relating to the size and shape of grains; Physiological properties: initial germination potential and after accelerated aging; and health assessment of grain. It was not obtained statistical difference between treatments for physical variables, bulk density, sphericity and roundness. On the other hand, was no difference to 1000 grain mass and real density, with larger unitary values when realized thes T3 treatments (Product Stoller 600 mL ha-1, without fungicide) T6 (control with fungicide, without applying Product Stoller) and T8 Product Stoller 600 mL ha-1with fungicide). In relation to the grain size, the T4 (Product Stoller 900 mL ha-1, without fungicide) and the T7 (Product Stoller 300 mL ha-1with fungicide) stood out from the other treatments in relation to volume, diameter, and surface area of the grain. The T9 (Product Stoller 900 mL ha-1with fungicide) presented the best results on the physiological and sanitary quality.