The study looked at how groundnut plants respond to drought stress, a growth regulator called paclobutrazol (PBZ), and a plant hormone called abscisic acid (ABA). Drought stress increased amino acid and proline levels in the plants, while PBZ and ABA treatments also raised these levels but not as much as drought stress alone. However, PBZ and ABA treatments did increase protein content in the plants compared to drought stress alone. This suggests that using PBZ and ABA could help make groundnut plants more tolerant to drought, which could benefit farmers growing peanuts in dry conditions.