Effects of Nitrogen Rates on Flour Color and Noodle Quality in Two Winter Wheat (Triticum aestivum L.) Cultivars Diurnal Changes in Activities of Related Enzymes to Starch Synthesis in Grains of Winter Wheat COMPARISON OF NEW AND SEVERAL CLASSICAL MODELS OF PHOTOSYNTHESIS IN RESPONSE TO IRRADIANCE Ecophysiological responses and hyperspectral characteristics of winter wheat (Triticum aestivum) under drought stress Ecological significance of redundancy in tillers of winter wheat (Triticum aestivum) and effect of reducing redundancy on water use efficiency