Abstract: | From biochemical point of view, the germination process consists in the mobilization of storage substances that is realized by the hydrolyze of proteins, polysaccharide and lipids under the action of specific enzymes until the their basic structural units (amino acids, monosaccharide, fatty acids etc.) and their utilization as precursors in the metabolic processes that assures the development of plantlet until the unleash of the photosynthetic process. For the accomplishment of the experimental part we evaluated the dynamic of total amylase activity, α- and β-amylase, neutral protease, alkaline and acid lipase at maize (Zea mays) during germination and the correlation of fond values with the dynamic concentration of their specific substances. The obtained dates emphases a high enzymatic activity that should demonstrate the fact that, during the germination period, the main storage substances are mobilized with an amazing speed with the purpose of energy production, energy that is necessary for embryo growing till the moment of unleash of the biosynthetic process. |