Nitrogen and sulfur effects on hard winter wheat quality and asparagine concentration

• DOI: 10.1016/j.jcs.2020.102969
• Publication Date: 2020-04-01T05:25:08Z
• Authors: Tara L. Wilson; Mary J. Guttieri; Nathan O. Nelson; Allan Fritz; Michael Tilley
• Keywords: Grain Quality

Grain protein concentration and composition are key factors affecting winter wheat quality influenced by genotype, available fertility, growing conditions. These same parameters can affect free asparagine in grain, elevated lead to acrylamide production baked food products, which be a health concern. The objectives of this study were determine the effect nitrogen (N), sulfur (S) fertility on concentration, quality, dough rheology, grown S-deficient soils. Treatments arranged 3 × 2 4 factorial design 2017 5 2018. There three levels N (56, 101 146 kg ha−1), two S (0 22 four genotype 2017, five Protein was evaluated as percent polymeric using size exclusion high performance liquid chromatography. In both years, ratio monomeric increased fertilization. Solvent retention capacity (SRC) whole grain lactic acid-sodium dodecyl sulfate test. 2018, application SRC 217%–308%. However, improvement limited genotypes modest, likely consequence reduced S-treated plots. Free averaged 9.8 μmol/g 20.9 respectively. Asparagine affected N, S, their interactions. Sulfur substantially concentrations years. Dough rheology 2018 trial farinograph average stability from 9.2 min 14.6 min. Farinograph effectively predicted test (R2 = 0.78). results demonstrate importance ensuring adequate production.