Technological quality of wheat under nitrogen management

The improving wheat technological quality constitutes an aspect of fundamental importance in the search for products derived of high quality. This study aimed to analyze the technological quality of different wheat genotypes for the use of different nitrogen managements in coverage and sources of nitrogen fertilization. The experimental design was randomized blocks, arranged in a factorial design with three genotypes (Fundacep 52, TBIO Mestre and TBIO Itaipu) x two nitrogen sources (UR: urea - 45% nitrogen and AN: ammonium nitrate - 33.5 % nitrogen) x four managements (NN: no nitrogen, TIL: tillering, TLF: tillering and flowering and TBF: tillering, booting and flowering) arranged in three repetitions. The analysis of variance showed significance for genotype x nitrogen source x management for the characters tenacity (P), extensibility (L) P/L, gluten strength (W), falling number (NQ) and wet gluten (GU). Technological quality parameters are influenced by the managements, nitrogen sources and genotypes. Nitrogen management with urea and ammonium nitrate has no influence in protein content. TbioMestre genotype has higher gluten content, tenacity and extensibility when urea is applied at tillering and flowering, for the ammonium nitrate the best responses are obtained for dropping numbers.