Alexander, A.G. 1969. Relationships of Gibberellic Acid to Water and Phosphorus in the Growth, Sugar Production, and Enzyme Behavior of Sugarcane. The Journal of Agriculture of the University of Puerto Rico. 53, 3 (Jul. 1969), 149–166. DOI:https://doi.org/10.46429/jaupr.v53i3.11154.