Armazenamento de sementes de soja em embalagens permeável e hermética, com e sem atmosfera modificada

Abstract

The characteristics of materials used in packages for seeds storage may negatively influence in the deterioration process, causing future problems in the period of storage and in the emergence in the field. Thus, we aimed to assess the physiological quality of soya beans, stored in permeable and hermetic packages and stored in uncontrolled environmental conditions. In order to carry out the experiment, we used a soya beans lot from the cultivar SYN 1059 RR. It was used four repetitions, distributed in divided portion 3x6 (three types of packages x six storage periods). We used multi-wall paper, hermetic and hermetic with CO2 injection packages, stored for 225 days and an assessment of regular intervals of 45 days. After bagging the soya beans, the beans quality was assessed through the analysis of germination, accelerated aging, humidity, electric conductivity and emergence in the field. The hermetic package, with and without CO2 injection, favors to reduce the speed of deterioration of soy bean seeds. The hermetic package allows a higher physiological quality of soya beans comparatively to the permeable package, in the storage period of up to 180 days under uncontrolled environmental conditions.