Arsa IGBA, Ariffin, Aini N, Lalel HJD. 2017. Grain yield and aroma quality of upland rice (var. pare wangi) under various types and periods of drought stress. Trop Drylands 1: 17-23. The objective of this study was to evaluate the effect of type and period of drought stress on grain yield, physiological characters and aroma quality of aromatic Pare Wangi upland rice variety. This two-factor experiment was conducted in a Green House employing a Completely Randomized Design with three replications. The first factor was type of drought stress and the second factor was plant growth stage at which drought stress period was started. Observed data included yield components and grain yield pot-1, physiological characters, and aroma quality. Observed data was subjected to analysis of variance, HSD post hoc test, and a simple correlation analysis. The research results indicated that the salinity stress effect of 2.0 g NaCl kg soil-1 caused a higher percentage of unfilled grain as compared to that of other types of stresses. When the salinity stress was started at the booting stage, the chlorophyll content of the rice plants was lower than that of others stresses. Soil moisture stress of 75% FC that was started at booting stage produced the highest 2AP content and aroma quality. Proline content was not significantly correlated with 2AP content but it showed a positive correlation with grain yield pot-1.