Physiological potential and antioxidant metabolism during storage of soybean seeds contrasting with phenylpropanoid pathway compounds

Differences in seed storage tolerance between soybean cultivars have been frequently observed. Thus, identifying compounds found them that may be related to these differences is necessary support the selection of with seeds better potential. Therefore, this study aimed evaluate changes viability and vigor during two environments, relating antioxidant activity, production reactive oxygen species, metabolites phenylpropanoid pathway. The experimental design was completely randomized a 4 × 5 factorial scheme (storage periods cultivars). Cultivars contrasting characteristics lignin content, coat color, isoflavone content were used, stored for six months cold dry chamber an uncontrolled environment. Every months, vigor, enzymatic activity (superoxide dismutase catalase), hydrogen peroxide evaluated. Storage maintains A, C, D; it reduced all Seed storage. There no association seeds’ physiological quality superoxide catalase activities. increase indicator reduction when difference deterioration associated coat.