Influence of Silver Nanoparticles, Laser Light and Electromagnetic Stimulation of Seeds on Germination Rate and Photosynthetic Parameters in Pumpkin (Cucurbita pepo L.) Leaves

The study aimed to determine the impact of laser light (L), magnetic stimulation (p) and silver nanocolloid (AgNC) on pumpkin seeds germination rate content photosynthetic pigments as well efficiency photosynthesis greenness index in plant’s development stages. Seeds germinated after use various combinations different refining techniques. best results were observed for alternating field, where energy increased significantly by 20% relative control. A similar effect was terms capacity which 4%. decrease emergence all groups. Leaves grown from soaked nanocolloidal platters characterised a higher chlorophyll b by, respectively, 53 11%, 79% carotenoid content. leaves potted plants contained 42 43% more groups p AgNC. In addition, 66 81% carotenoids L p. At stage onset flowering pumpkin, an improvement highest recorded reached 23% (intensity photosynthesis) 11% (greenness SPAD).