INTENSE INTERRUPTED WHITE-LIGHT AS A FACT OR OF INCREASED ADAPTIVE INTRODUCTION AND MUTAGENESIS OF THE WHEAT

Illumination of seeds and apical meristems of short-day dwarf wheat by intense interrupted white light changes the adaptive basis of their p hotoperodic responsiveness and provides for adaptive introduction in r egions with a long photoperiod. Intense interrupted while light activa tes structural-metabolic, photoenergetic and mutation processes and in duced photodestruction and photoinactivation of the endogenous inhibit ors and favors formation of photoinduced free radicals. Some free radi cals form peroxide and hydroxyl radicals in the aqueous phase of cells , which a strong mutagens inducing point (genic) mutations. About 65% of morphogenetically constant highly productive photomutant forms havi ng an improved quality of grain and well adapted to a long photoperiod have been selected in the 2nd - 5th generations.