The sensitivity of the embryo to ABA was significant across all seed treatments and cultivars. In Alamo, seeds with no glumes imbibed in the solution containing ABA decreased their TGP from 21% ± 3,in the control solution (Water + Ethanol), to 3% ± 1. In seeds with no glumes and no bracts the TGP mean decreased from 67% ± 4 to28% ± 5. In Kanlow, TGP values decreased by 13-percentage point sin No G seeds and by 23-percentage points in No G,L,P seeds. Fluridone had no affect in seeds with lemma and palea, however; when compared relative to the control (Water), TGP means increased by17-percentage points, in Alamo; and by 38-percentage points in Kanlow, in seeds with lemma and palea removed (Fig. 3).