Effect of Mineral Acids (H3PO4) on Rooting Response of Aging Mung Bean (Phaseolus aureus Roxb.) Cuttings via Indole Acetic Acid Level

Abstract

Phosphoric acid (H₃PO₄) effect on the rooting that is response of aging mung bean cuttings as a weak mineral acid calculated on level of Indole-3-Acetic Acid (IAA). significant increase in rooting response of aged cuttings is  shown in the data (for 3days in d/H₂O) with (0.01, 0.001, 0.0001%,) of H₃PO₄ concentrations solution and with (% 0.01 and 0.001%) concentration show extremely significant  increase in rooting response of aged cuttings (for 3days in solution of H₃PO₄ ), while extremely significant decrease in rooting response compared to control (d/H₂O) with  extremely concentration (0.5%) . a extremely significant increase of IAA content in hypocotyls of aged cuttings in optimum concentration of H₃PO₄verified by Quantitative estimation of IAA by spectrophotometric method as indicators for oxidative processes that occurrence during aging phenomenon.

Keywords: Aging, IAA biosynthesis, Rooting response, Mineral acids, Macronutrients, Stem cuttings, Mung bean.