PHOTOSYNTHETIC APPARATUS OF POTATO PLANTS (Solanum tuberosum L.) GROWN in vitro AS INFLUENCED BY DIFFERENT SPECTRAL COMPOSITION OF LED RADIATION

Dynamic Regulation of Photosynthetic Processes Under Variable Spectral Led Irradiation of Plants

“…Тихомирова с соавт. (2) и в наших исследованиях по действию монохроматического облучения на растения картофеля (18). Снижение скорости нефотохимического тушения флуоресценции (NPQ) через 3 ч облучения растений ФАР + СС также может свидетельствовать о повышении эффективности использования синего света в ассимиляционных процессах, даже при низкой величине отношения СС/КС.…”

Features of the lighting spectrum influence on the productivity and biochemical composition of test fruit and leaf vegetable crops

“…Potential narrow-band emission from LEDs allows to assess the role of certain wavelengths in plant morphology and development, however, the increasing number of investigations shows that plants need the full visible light spectrum to implement their production potential. For example, compared with white light, separate blue, green and red light action causes reduction of Agria potato biomass accumulation by 50, 76 and 68%, moreover, white light exposure caused maximum carboxylation rate [24]. At the same time, application of light spectrum characterized by equal energy fractions in individual PAR ranges caused formation of increased number of leaves in parsley rosette, increased wet leaf weight and higher dry substance content, and in case of exposure to spectrum close to the relative spectral photosynthesis efficiency, total leaf length increase was observed due to stalk extension with retained proportions of the remaining portion of the leaf [25].…”