Effect of Osmopriming with Melatonin on Germination, Vigor and Health of Daucus carota L. Seeds

Carrot is one of the most frequently grown vegetables in Poland and world. Seed-borne pathogenic fungi negatively influence their quality as well quantity carrot root yield. Melatonin a PGR, which includes protective effects against biotic abiotic stress factors antioxidant effects. The aim this experiment was to determine effect osmopriming with melatonin on germination, vigor seeds health. were osmoprimed solution polyethylene glycol (PEG) an osmotic potential −1.5 MPa at 20 °C for 7 days; added PEG doses 25, 50, 100 or 200 µM. Generally, addition significantly improved germination capacity first final counts (sample I about 7–14% sample II 35–43%), reduced incidence Alternaria alternata, A. radicina Fusarium spp. increased percentage non-sporulating hyphae. Treating accelerated significant rate comparison untreated treated fungicide, especially low dosage, i.e., 25–50 MGT primed dose 25 µM shortened 0.5 day I) 1 II) seed parameters comparable better than treating fungicide. results suggest that could replace fungicides future, are harmful environment.