Effect of nitrogen and ecological factors on quality of winter triticale cultivars

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Abstract
Field experiments were conducted during three growing seasons of (2004/05, 2005/06 and 2006/07) to investigate the effect of various nitrogen doses on quality components of two winter triticale cultivars (Favorit and Trijumf). Nitrogen fertilizers are applied in four doses: N1= 60 kg N ha-1, N2= 90 kg N ha-1 and N3= 120 kg N ha-1. Analysis of sedimentation, gluten content, and rheological flour and dough properties were done. The results showed that N fertilization significantly increased investigated quality traits in both cultivars. The highest sedimentation value and gluten content established with application of 120 kg N ha-1. Triticale cultivars reacted positively to nitrogen increasing, and its rheological flour and dough properties increased with N increasing. Nevertheless, quality of investigated cultivars belonged to C2 quality group. By the analysis of variance established high significant differences in mean values of sedimentation, wet gluten content and water absorption among the cultivars (A), years (B) and supplied nitrogen doses (C). All interactions (AB, AC, BC and ABC) were significant for wet gluten content, but for sedimentation only interaction, while of water absorption was only significant interaction BC.

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