Vol. 9, Special Issue 9, Part V (2025)

A study was conducted during 2024-25 at the Floriculture Research Farm, MGUVV, Sankara, Patan, Durg (Chhattisgarh) to evaluate the effect of Plant Growth Regulators (PGRs) on the morphological traits of Carpet grass (Axonopus spp.). Thirteen treatments consisting of different doses of paclobutrazol, Gibberellic Acid (GA₃), ethephon, and trinexapac-ethyl were laid out in a Completely Randomized Design with three replications. Observations were recorded on canopy height, stolon internode length, stolon diameter, leaf length, and leaf width. Significant differences were observed among treatments. GA₃ (0.08–0.16 kg ha⁻¹) promoted vegetative growth by increasing canopy height (up to 6.90 cm), stolon internodal length (2.57 cm), and leaf length (5.05 cm), which facilitated rapid establishment. In contrast, paclobutrazol (0.24 - 0.96 kg ha⁻¹) and trinexapac-ethyl (0.08 - 0.32 kg ha⁻¹) effectively reduced vertical growth (as low as 2.93 cm), minimized internodal elongation, and increased stolon diameter (0.63 mm) and leaf width (1.92 mm), producing compact, dense turf. Ethephon (4.0 - 16.0 kg ha⁻¹) showed moderate suppression of canopy height with increased stolon girth.