Vol. 9, Issue 10 (2020)

Author(s):
MS Kadam, KV Malshe and BR Salvi

Abstract:
The field trial was undertaken at College of Horticulture, Dapoli, Dist. Ratnagiri during Rabi season of the year 2019-20 undertaken to assess the influence of plant growth regulators on vegetative growth in Gaillardia cv. Local double’. The experiment was laid out in Randomized Block Design (RBD) with three replications with nine treatments of plant growth regulator viz; T₁- NAA @ 100 ppm, T₂- NAA @ 200 ppm, T₃- GA₃ @ 100 ppm, T₄- GA₃ @ 200 ppm, T₅- CCC @ 1500 ppm, T₆- CCC @ 3000 ppm, T₇- PBZ @ 250 ppm, T₈- PBZ @ 500 ppm and T₉- Control. Among the different plant growth regulators used, application of T₄ GA₃ 200 ppm (T₄) was found significantly superior with respect to maximum plant height (80.48 cm), maximum plant spread i.e E-W (49.47 cm) and N-S (50.19 cm), maximum primary and secondary branches (27.33 and 42.27 respectively), leaf area (37.33 cm²).