Endogenus gibberellic acid and benzyladenine effects on stem elongation and leaf in Schefflera arboricola L. plants.

ABSTRACT: Field trials with Schefflera arboricola were conducted at the experimental farm of Faculty of Agriculture, University Azad Jiroft in 2013 growth seasons. The aim of this work is to study the effect of foliar application with gibberellic acid (GA3) and benzyladenine (BA) at 0, 100 and 200 mg.L-1 on the vegetative growth and Photosynthetic pigments of Schefflera arboricola L plant, 120 day after spray. Results showed that 200 mg L-1 gibberellic acid + 200 mg L-1 benzyladenine increased Plant Height and leaf area index of Schefflera arboricola L. as 41.15 and 56.97% compared to control treatment. Effect of gibberellic acid, benzyladenine and the interaction significant (p<0.01) also effect of on No. of leaves/plant was significant. Results showed that 200 mg L-1 gibberellic acid + 100 mg L-1 benzyladenine, 200 mg L-1 gibberellic acid + 200 mg L-1 benzyladenine and 200 mg L-1 gibberellic acid increased No. of leaves/plant of Schefflera arboricola L. as 59.72, 54.16 and 37.5% compared to control treatment. The obtained results show, 200 mg L-1 gibberellic acid increased Chl. (a), Total Chl. a+b and sum pigments content of Schefflera arboricola L. as 94.55, 60.62 and 69.66% compared to control treatment.

Benzyladenine, Schefflera arboricola, Gibberellic Acid, Leaf Area Index, Photosynthetic Pigments.