Effect of Electric Shock and Gamma Rays on Stimulation of Seed Germination and Growth of Seedling in Thyme (Thymus Vulgaris)

Abstract

during spring season 2019 to test the impact of four Gamma doses Radiation (0, 10, 20, 30 Gray), and two levels of electric current severity AC (0, 6, Ampere) on seed germination and growth of (Thymus vulgaris). This study was designed according to Complete Randomized Design (CRD) in three replicates and the results was analyzed using L.S.D at 5% level of significant. Observations have identified a number of traits of seed germination percentage (FGP), germination speed(GS) and growth traits such as seedling height, wet weight of root and shoots, dry weight of root and shoots, number of leaves and root length. The results obtained: The top Improvement of germination speed when the seeds are irradiated at a dose of 30 Gray (2.40 % day -1 ), while the highest level of dry weight of shoot (0.01490 g) and Leaf number(19.40 leaf\plant) at a dose of 20 Gray while the control gave less results of this studied characteristics. Electric shock (6A) exceeded control treatment in wet and dry weight of shoot (0.0580, 0.01560 g), Wet weight of root (0.0350 g), Leaf number (17.10 leaf/plant) and Root length (10.10 c.m ).