this table showed the effect of light quality on the flowering response of chrysanthemum under SD LD LL and NB. Condition And the different light quality consisted of B,R,and B+R. B is blue light, R is red light and B+R is blue plus red light. The resulted found that of Chrysanthemum flowering is in SD condition. And red light in SD condition is the best response to the % flowering in Chrysanthemum.