450e8c1c_Plant_Hormone_Theory__Effects
[Name] Abscisic Acid (ABA) [Speculated Role] Deficiency of water [Effects] 
Closes stomates, stopping transpiration. Levels peak at night when stored sugar is needed to be used? Stimulates root growth and the absorption of water? Induce cell senescence acting in concert with Eth, strigolactones and GA?
Plant Hormone Theory
Effects