Our results is similar to results of Nowak and Mynett [19] on lily, Jordi et al [14] on Alestromeria, Han [11,12] on lily, Pun et al [22] on gladiolus, Ranwala and Miller [24] on lily and Kim and Miller [15] on tulip, confirm the positive and significant role of gibberellic acid and benzyladenine on decreasing number of yellow leaf.