Response of plant growth regulators (NAA) and (GA3) on growth and yield attributes of Chilli (Capsicum annuum L.) at Dehradun valley region

Present investigation entitled “Response of plant growth regulators (NAA) and (GA3) on growth and yield attributes of chilli (Capsicum annuum L.) at Dehradun Valley Region” was conducted at Horticulture Research Block, Shri Guru Ram Rai University, Dehradun, Uttarakhand during summer season from April 2019 - July 2019. The experiment was laid out in Randomized Block Design (RBD) with three replications. The ten treatments comprised following levels of GA3 concentrations viz.10ppm, 25ppm, 50ppm, 100ppm, and NAA 50ppm, 100ppm, 10ppm, 25ppm, 150ppm and control. Among all the treatments it was concluded that for growth as well as yield attributes, NAA @50 ppm gave maximum plant height (34.6 cm), number of branches (51.6), number of leaves(56.3), days to 50% flowering (46.10), flowers per plant (3.6) and fruits per plant(51.6), fruit yield per plant (400.00g), yield per plot (10.56 kg), yield per hectare (146.10 q), fruit length(17.6cm) and fruit breadth(3.9cm). From this experiment, it was concluded that 50 ppm of NAA can be recommended in chilli for its better growth and yield.