The effect of homobrassinolide (HBL) on the shoot growth (length, fresh weight, diameter, and dry weight) root growth (length, fresh weight, diameter, and dry weight) and foliar growth (plant fresh weight, leaves per plant and leaf area) of mustard plants grown in the semi-arid tropics of Nizamabad was studied. The soil in Nizamabad district is saline land black soil wherein the plants usually experience drought and saline stresses. Application of HBL was very effective in stimulating the shoot growth, root growth as well as the foliar growth of mustard plants. The promotion of shoot, root and foliar growth is an indicator that HBL mitigated the negative effect of the semi-arid conditions of the soil.
