Photosynthetic metabolism and antioxidant in Ormosia arborea are modulated by abscisic acid under water deficit?

Abstract The aim of this research was to evaluate the effect abscisic acid (ABA) on gas exchange and activity antioxidant enzymes Ormosia arborea (Vell.) Harms seedlings under water deficit its influence recovery potential seedlings. experiment conducted using four treatments, being daily irrigation or restriction without with 10 μM ABA. Seedlings + ABA showed greater adjustment drought, when re-irrigated, they restored photosynthetic metabolism potential. minimizes reduction in leaf, however, it does not increase O. deficit. These results suggest that species exhibits plasticity, which enables survive also environments subjected temporary regardless supplementation We other doses be researched expand beneficial species.