The effect of the photosynthetic apparatus of winter wheat and spring barley on the treatment with the biostimulator Nigor++

The article presents data on the study of the effect of new biostimulator Nigor++ on the leaf area andthe content of photosynthetic pigments in a semi-production experiment on winter wheat Moskovskaya39 and spring barley Ataman in the conditions of the Scientific and Educational Production Center"Integration" of the Orel State Agrarian University. It was found that the leaf area of winter wheat underthe influence of the biostimulator Nigor++ increased by 33.47% compared to the control, and in springbarley the leaf area after treatment with the biostimulator increased almost twice compared to thecontrol, at the end of the growing season the difference between the experimental plants and the control was 23.5%. The increase in the size of grain crops leaves under the influence of thebiostimulator was reflected in an increase in the synthesis of photosynthetic pigments by 1.5-2 times,and in the ripening phase, when leaf death occurs in control plants and chlorophyll synthesis stops, inthe experimental plants the content of chlorophyll a is more than three times higher than in theuntreated plants. In spring barley, the difference in the amount of photosynthetic pigments inexperimental plants throughout the growing season compared to the control plants was approximately10-12%.The work was carried out according to the order of the Ministry of Agriculture of the RussianFederation R&D No. 121091400023-3 dated 14.09.2021.