Effect of GA3 and BA on the Growth and Photosynthetic Pigment ChangesSpathiphyllum wallissi Indoor Flower

To study the effect of plant hormones Gibberellic Acid(GA3) and Benzyladenine (BA) on leaf ornamentalSpathiphyllum wallissi, BA concentrations of 0, 100, 200 and 400 mg.l-1 and GA3 concentrations of 0, 100 and 200 mg.l-1 by foliar spraying in three steps, with a delay of 15days was performed,In each step,40ml ofsolutionwassprayedoneach pot. The pots were arranged in factorialbased complete randomize design with 12 treatments and 4 replicates. Results showed that highest number ofleaves produced per plant in the treatment of 400 mg.l-1and 100 mg.l-1 BA and GA3, respectively, with anaverage of 11/33 and 11 that did not show a statistically significant difference. With increasing concentrations ofgrowth regulators, leaf area index, chlorophyll, petiolelength, chlorophyll a showed a significant increase. Effect of BA and GA3 hormone effect on photosynthetic pigments. The highest amount of chlorophyll a, b andtotal level of 400 mg.l-1 BA+100 mg.l-1 GA3 with anaverage of 18/48, 10/74 and 28/73 μg/ml-1, respectively.