عنوان مقاله [English]
One of priming methods is gamma irradiation to increase seed germination and seedling growth. In this research, effects of different doses of gamma ray on germination and vegetative traits of cereals, legumes and vegetables were investigated. Irradiation was carried out with use of gamma cell with cobalt 60 and Ci 7.8*102, with irradiation velocity of 0.087 g/s in four levels (10, 20, 30 and 40) in a completely randomized design with 3 replications. Results showed that germination in wheat, corn, chickpea and tomato seeds had positive reaction to low doses of gamma radiation, although in bean and onion seed germination decreased with increasing germination dose, but in mungbean, cucumber and lettuce seeds with higher doses germination percentage increased. The response of different seeds to gamma radiation levels is different, and for some seeds such as wheat, corn, mungbean, chickpeas, tomatoes and cucumbers, priming with gamma irradiation can be used to increase percentage of germination and seedling growth. In other vegetative traits, compared to control, there was no increase in beans, onions and mungbean was observed but the seeds of chickpeas, wheat, corn, cucumber, lettuce and tomato increased compared with the control and showed a positive reaction to priming with gamma irradiation.