The effects of sowing date and seeding rate on spelt and common wheat protein composition and characteristics
Year: 2015
Type: article
Abstract: We investigated the influence of sowing date and seeding rate on protein composition and quality parameters in two winter spelt cultivars (Triticum aestivum ssp. spelta L.) and one common winter wheat cultivar (Triticum aestivum ssp. vulgare L.). Wheat was grown during a 3 year experiment (2007-2010) at the Microplots Experimental Station in Puławy, Poland. The first experimental factor was the seeding rate: 300, 450 and 600 grains/m2. The second factor was the sowing date: optimal and delayed (2 weeks delayed versus optimal). The third factor was cultivar: two spelt cultivars (Rokosz and STH 8) and one common wheat cultivar (Sukces). Detailed analysis by reversed-phase high-performance liquid chromatography of protein subunits revealed many significant differences between grain samples in relation to the tested sources of variation (sowing date, seeding rate and genotype). Delayed sowing and the lowest seeding rate slightly reduced the relative ratio of gliadins to glutenins, which points to a shift in the elastic properties of gluten proteins. However, neither sowing date nor seeding rate affected wet gluten, gluten index or sedimentation value (based on analysis of variance). These gluten quality parameters were affected only by the genotypes used and the year of cropping.
DOI: 10.3920/qas2014.0574
Authors: M. Mikos-Szymańska, G. Podolska
Language: English
Subfield: Plant Science
Domain: Life Sciences
SDG: Zero hunger
Open Access status: diamond
OpenAlex ID: W2179021076