Concentration of free radicals in pea seeds after pre-sowing treatment with magnetic field
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Department of Forage Crop Production, Institute of Soil Science and Plant Cultivation, Czartoryskich 8, 24-100 Puławy, Poland
Department of Experimental Physics, University of Maria Curie-Skłodowska, Plac Marii Curie-Skłodowskiej 1, 20-031 Lublin, Poland
Department of Plant Nutrition and Fertilization, Institute of Soil Science and Plant Cultivation, Czartoryskich 8, 24-100 Puławy, Poland
Department of Physics, University of Agriculture, Akademicka 15, 20-033 Lublin, Poland
Int. Agrophys. 2005, 19(3): 243-249
The aim of the research was the estimation of seed lot magnetic stimulation effect on free radicals concentration and dynamics of pea seeds germination. The first factor were two cultivars of pea: Rola (traditional form) and Piast (afila type), the second factor were the 3 exposure doses of magnetic field intensity: D0 – no stimulation (control), D1 – 10 750 Jm3s and D2 – 85 987 Jm3s. The stimulated seeds of both pea forms showed faster uptake of water and achieved larger mass during the seed imbibition in comparison to the seeds without stimulation. It was found that earlier and more steady emergence of these plants was a consequence of this process. Pea seedlings which were grown from stimulated seeds achieved in the following successive dates of measurement significantly larger hypocotyl and roots length in comparison to the seedlings without stimulation with magnetic field. A significant increase of free radicals concentration was ob- served in the seeds which were pre-sowing treated with magnetic field. There was no significant effect of the stimulation on the free radicals concentration in the organs of young pea plants grown from seeds of the varieties under examination. Free radicals numbers in the leaves, stems and roots did not differ significantly from those which were found in the particular organs of plants which were grown from non-stimulated seeds. The laboratory tests did not show any larger number of free radicals in the seeds harvested from the plants which were grown from the stimulated seeds.
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