Vol. 11, Issue 10 (2022)

Author(s):
Richa Tiwari, Dr. DP Singh, Dr. Rajiv and Dr. IN Shukla

Abstract:
The present investigation entitled “Effect of plant growth regulators on growth, yield and quality parameters in sweet pepper (Capsicum annum L.) Under naturally ventilated poly house” was conducted at Vegetable Research Farm of Chandra Shekhar Azad University of Agriculture and Technology, Kanpur during two consecutive Rabi season 2020-21 and 2021-22 to find out the effect of PGRs and their spray schedules on sweet pepper under protected cultivation. The experiment was laid out in Factorial Randomized Block Design with 12 treatment combinations and replicated thrice. The experiment comprised four levels of plant growth regulators viz., NAA @ 50 ppm (P1), NAA @ 100 ppm (P2), Triacontanol @ 5 ppm (P3) and Triacontanol @10 ppm (P4) and three spray schedules viz., spray at 30 & 45 DAT (I1), spray at 30, 45 & 60 DAT (I2) and spray at 30, 45, 60 & 75 DAT (I3). The sweet pepper hybrid ‘Indra’ was used in experiment. Results of the experiment revealed that the application of Triacontanol @ 10 ppm recorded significantly highest plant height (96.29 and 97.63 cm), no. of branches/plant (30.29 and 31.34), in ternodal length (9.78 and 10.48 cm), stem girth (1.40 and 1.55 cm), fruit set (57.77 and 58.98%), average fruit weight (189.13 and 193.75 g), fruit weight/plant (1.63 and 1.62 kg), fruit yield/plot (9.33 and 9.31 kg), fruit yield/1000 m2 (4320.47 and 4310.37 kg), pericarp thickness (7.40 and 8.02 mm), shelf life (7.88 and 8.44 days), fruit dry weight/plant (22.54 and 22.27g), total soluble solid (6.56 and 6.65) and titratable acidity (0.150 and 0.139%) during both the years. In case of spray schedules, the plants were sprayed at 30, 45, 60 and 75 days after transplanting (DAT) produced significantly highest plant height (86.12 and 87.62 cm), number of branches/plant (29.24 and 30.35), stem girth (1.34 and 1.44 cm).