%0 Journal Article %T Drought-Induced Increases in Abscisic Acid Levels in the Root Apex of Sunflower %A J. Mason Robertson , Richard P. Pharis , Yan Y. Huang , David M. Reid , and Edward C. Yeung %J Plant Physiology %V 79 %N 4 %P 1086 %@ 1532-2548 %D 1985-12-01 %I American Society of Plant Biologists %~ DeepDyve