Effect of three different mutation treatments on germination and seedling growth of Cichorium intybus cv. Puna seeds

The seeds of Cichorium intybus cv.Puna were treated by ray, NaN3 and space radiation and the seed germination and seedling growth characters were determined in laboratory. The results indicated that 60Co ray、NaN3 and space radiation showed stimulation effects. The order of germination index of 3 treatments was NaN3 60Co ray space radiation; as for main root length, it was space radiation NaN360Co ray; and for root fresh weight, it was space radiation 60Co rayNaN3; for stem and leaf fresh weight, it was space radiation NaN3 60Co ray.