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Resume
During the period 2003-2004 yield experiments were carried out. Seeds from pepper cv Kurtovska kapia 1619, were irradiated with photodiode kwazi – monochromatic light at wafe length 682 nm and desity of optical power 80 mW/cm2 by variants of exposition 1 min, 3 min and 5 min. It was established that in resuit of irradiation the eariy and total yield of plants were increased. The early yield was the higest after 3 min exposition of irradiation, and the total yield – after 5 min exposition of iradiation. The growth in comparison with the control was respectively 42,1 and 20,3%. The seed irradiation provoked an increase of average weight of Fruits enhanced the content of sugars and ascorbic acide and decreased the content of nitrates.