Sharkh AY, Abo Remalia S.I.H and Abou El Enin MM
The objective of this study was to compare, the effects of different doses of gamma radiation on germination survival percentage and growth of Jatropha plant, the seeds were treated with three doses of gamma radiation (5, 10 and 15 kr) and arranged in a randomized complete block design with three replications. The results showed significant differences among the three doses for seed germination after 7, 14 and 21 days from sowing in vitroand invivo experiments and on the other handplant height andno. of Leaves /plantwere recorded after 10,20, 30,100,120 and 130 days from sowing invivo experiments andthe low dose 5 kr seemed to have a stimulating effect on these traits, on the other hand the high dose 15 kr caused significant reduction as compared to the control for all studied traits. Finally, results concluded that lowest dose of gamma rays, (5 Kr dose) was found to be more effective on seed germination and showed a stimulatory effect as compared to the control while the highs dose (10 and 15 kr) treatments showed an inhibitory effect on all the parameters studied as compared to the control.
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