Enhancement of Growth Potential of Duranta repens L. by Ethanolic Extract Fractions of the Cleome gynandra L.

Abstract

The study was conducted with the objective of investigating the ethanolic extract fractions of the stem of Cleome gynandra L. by analyzing its bioactivity in stakes of Duranta repens, L. The extracts were separated from a dry ethanolic extract (20% tincture m/V) with the solvents ethyl ether, chloroform, ethyl acetate and distilled water and evaluated at doses of 50, 100, 150 mg m L-1, compared to a control to which only sterile distilled water was applied. The variables measured in D. repens at 45 days of cultivation were: number of shoots, length of shoots, and number of leaves in the apical buds, number of roots and length of the first root formed. In the different fractions evaluated, a stimulating effect was presented in the selected variables; therefore, the presence of bioactive metabolites of different polarity significatively influences the growth potential of C. gynandra. However, better results of plant growth were obtained in solvents of higher polarity, especially the acetate and aqueous fractions.