Abstract
The paper presents new results on the application of collagen hydrolysates characterised in terms of molecular weight, polydispersity (GPC/ SEC), chemical composition and free amino acid composition (GC-MS) for the treatment of cereal seeds. Surface tension and contact angle determinations (VGA Optima XE) have highlighted an improvement in the hydrophilicity of collagen hydrolysates in pesticide mixtures as premises for the adherence of wheat seeds onto the surface. The identification of a 39% higher gibberellic acid concentration (RP-HPLC) in germinated seeds in the collagen hydrolysate, and the presence of free amino acids and low molecular weight fractions were correlated with the biofertilizing and biostimulating effects registered in field experiments on wheat crops.
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