Dissertational work is devoted to researching the comparative influence of electromagnetic radiations with wavelength from 400.0 to 800.0 nm, irradiation expositions from 1 to 1800 seconds and power intensities from 0.5 to 10 mW.cm2 on various physiological, biochemical, biophysical, anatomical, morphological and biometrical parameters of four common wheat Triticum aestivum L. cultivars from Kazakhstan and Egypt