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(a) Stem lengths (from the soil up to the cotyledons) of plasma-treated and control seeds grown in organic substrate; (b) Lengths of roots, shoots and entire seedling after 30 days of incubation; (c) Fresh weight and (d) Dry weight of the whole plant and, separately, of the shoot and leaves and of the root on the 30th day (C—control/untreated seeds, P—plasma-treated seeds). Different letters indicate statistically significant differences between mean values (p < 0.05).
