Vol. 12, Issue 1 (2023)

Author(s):
Gawali SS, RA Patil and SB Gaikwad

Abstract:
The present investigation was carried out at instructional cum research farm, Department of Horticulture, College of Agriculture, Osmanabad during kharif season 2021 to find out the effects of different plant growth regulators on growth parameters of cherry tomato cultivar ‘Nagmoti’ under protected conditions. The experiment was laid out in Randomized Blocked Design having ten treatments and three replications. 9 Treatments consist of different levels of GA3 (10, 30 and 50 ppm), NAA (10, 30 and 50 ppm) and Kinetin (30, 50 and 70 ppm) along with control. These different concentrations of GA3, NAA, Ki were sprayed on cherry tomato plants at 15, 30, 45 and 60 days after transplanting to study the growth behavior of cherry tomato. All growth parameter was found to be significantly superior at different concentration of GA3, NAA and Ki as compare to control treatment. The maximum plant height (220.26 cm), maximum number of leaves per plant (364), maximum number of clusters per plant (7.33), maximum number of flowers per plant (59.83), minimum days required for 50 percent flowering (27.20 days), maximum number of branches per plant (17.06), minimum days required for the fruit set (32.53 days), minimum days required for first harvesting (65.26 days) was reported in treatment T4 where plant has been sprayed with 50 ppm GA3. Among the various plant growth regulators, GA3 @ 50 ppm performed best on most of the growth parameters of cherry tomato.