تقوﻳﺖ ﻓﻴﺰﻳﻮﻟﻮژﻳﻜﻲ ﺑﺬرﻫﺎی ﻛﺪوی ﺗﺨﻢ ﻛﺎﻏﺬی (Cucurbita pepo var. styriaca) ﺑﺎ روشﻫﺎی مختلف پیش تیمار

Pumpkin seed oil is a good source of protein and valuable active ingredients such as fatty acids, phytosterols and vitamin E (especially gamma tocopherol). In order to evaluate the effects of priming materials and duration of priming on the seed physiological enhancement and biochemical traits of germination in pumpkin seed a factorial experiment conducted based on completely randomized desigh with three replications at the University of MohagheghArdabili. Treatments were priming with water, NaCl (3%), gibberellic acid (20 mg L-1) and ascorbic acid (20 ppm)to periods of 8, 16 and 24 hours. Seed mass as a control for comparison of different pretreatment methods were considered. Percentage and germination rate in the seeds primed with water, gibberellic acid and ascorbic acid increased with increasing duration of priming showed that the rate of increase was even higher in ascorbic acid treatment. Superoxide dismutase, catalase and peroxidase in sodium chloride and gibberellic acid treatments, had the highest and lowest activity respectively. The activity of these enzymes had upward trend except in halo-priming, and hormone-priming with gibberellin for 24 h was the best treatment considering enzyme activity.