Photosynthesis activity of buckwheat leaves in connection with selection for high seed productivity

Currently, the use of not only traditional, but also innovative approaches, in particular physiological knowledge, is relevant in the selection of new varieties. In this case, photosynthesis is of great interest, providing the formation of more than 95% of the organic matter of agricultural crops. Increasing its activity and efficiency seems to be one of the most effective ways to increase the overall and useful productivity of plants by means of breeding and technology. With this in mind, laboratory, vegetative and field experiments were conducted to study the genotypic features of the manifestation of adaptivity and photosynthetic activity of buckwheat leaves. It has been established that the gene pool of buckwheat culture is characterized by a wide polymorphism in terms of activity and efficiency of photosynthesis. The interval of genotypic variation in the phase of fruit formation was: according to the quantum yield (QY) - 0.232 - 0.328 cu; photochemical quenching (PQ) 0.521 - 0.922 cu, the activity of the electron transport chain (ETC) 97.1 - 137.6 cu.; rate of photosynthesis (RP) is 7.72 - 15.67 µmol CO2/m2s. A significant relationship was established between RP, QY and ETC at the level function show_eabstract() { $('#eabstract1').hide(); $('#eabstract2').show(); $('#eabstract_expand').hide(); }