Mutation induction in chrysanthemums by gamma-rays treatment of rooted cuttings

Abstract

Rooted cuttings of two <i>Chrysanthemum hortorum</i> cultivars, yellow flowered Luyona and purplish-red flowered Woking, were irradiated with following dosages of <sup>60</sup>Co gamma-rays: 1.5; ,2.0; 2.5; 3.0 kR. Among the MV<sub>2</sub> plants six clones from the cultivar Woking shoved mutational changes, and two of them were selected as possible new cultivars. No mutants were obtained from the cultivar Luyona.