Assessment of Cycocel Effects on Growth Medical Plant, Cannabis Sativa L. in Flowering Stage

ABSTRACT: Cannabis Sativa L. is one of the oldest farm plants that have both medicine and industrial uses.in this study we investigated the In this study, the cycocel (CCC) solution (0, 500, 100, and 1500 mg L-1) was sprayed on the plants in 2 periods within 10 days of each other, during the 5 pair-leaves stage. CCC at concentrations of 1000 and 1500 mg L-1 increased plant height. None of CCC treatments had significant effect on female plants. These results show that male and female plants respond to this growth retardant differently.Concentrations of 500 and 1000 mg L-1 in both genders resulted in more increase in shoot fresh weight compared to other treatments while the concentration of 1500 mg L-1 reduced shoot fresh weight and all the three concentrations were significantly different from control.CCC in low concentration as 500 mg L-1 decreased male plant height and concentrations of 1000 and 1500 mg L-1 increased male plant height. Leaf fresh weight was increased in 1000 mg L-1 treatment and decreased in 500 mg L-1. fresh weight of root and shoot and total weight of plant treated with 500 and 1000 mg L-1 CCC increased plant height compared to control. Higher level of CCC reduced root and shoot fresh weight.

Cannabis Sativa,Cycocel,Internode Number, plant height