Quality of malting barley grown under different cultivation systems

Three year trials were conducted to investigate the set of spring barley va rieties cultivated according to principles of ecological agriculture or usi ng the ordinary agrotechnics (fertilization, seed treatment, herbicides, fu ngicides, insecticides). The weather conditions affected most of the qualit y traits more than e,g, nitrogen fertilization or system of cultivation, Si gnificant differences among years were recorded in protein content in grain , relative extract at 45 degrees C, Kolbach index, diastatic power, and app arent final attenuation, The cultivation system substantially influenced th e beta-glucan content in wort, it was surprisingly low under ecological sys tem of cultivation, The effect of the cultivation system was also proved in the hot water extract and partially in Kolbach index and friability.