Sowing Date and Wheat Quality as Determined by Gluten Index Academic Article uri icon


  • Wheat (Triticum aestivum L.) in Mediterranean regions is highly variable in end-use quality at the producer level. This study aimed to understand how sowing date affects wheat quality, especially gluten index (GI). Experiments were conducted in five fields over three consecutive seasons in 2009–2011. Twenty cultivars (four of which were common to all experiments) were sown from late October to mid-January on three dates (early, normal, and late) in each field. Grain yield, test weight, protein content, GI, sodium dodecyl sulfate (SDS) sedimentation, and alveograph parameters were analyzed. The GI of the four common cultivars showed a significant environment (experiment)× cultivar× sowing date interaction. In two experiments, GI increased with a delay in sowing; in two other experiments, a similar increase resulted from delaying sowing from the early to normal sowing dates but there …

publication date

  • January 1, 2015