Study on Delayed Flowering Technique of Chinese Chrysanthemum

Experiment on delayed flowering technique of Chinese chrysanthemum demonstrated that long duration of sunshine could delay flowering. After planting cutting and 5-6 leaves developed, the plant was light treated for 60 days with 120 ~ 231 lx, and adult plant was cultured in greenhouse. The result showed that different varieties had different flowering time, but colour and diameter of flower, colour and type of leaf had no difference with normal cultured ones. The plant treated by B9 had larger flower diameter and leaf axil.