Vol. 11, Issue 9 (2022)

Author(s):
Amit Kumar, Gurjar PKS, Mohni Parmar, Manoj Kumar Kureel, Rajesh Jatav and Ashok Dhakad

Abstract:
A crop regulation study was carried out on six- seven year old orchard of guava cv. G-27 during 2020-2021 and 2021-2022 to evaluate the effect of different crop regulation methods on vegetative characteristics. The experiment was laid out in Randomized Block Design comprised of 16 treatments with three replication consisting of foliar spray of KI (0.5%, 0.75% and 1.0%), NAA (400 ppm, 600 ppm and 800 ppm), ethephon (600 ppm, 800 ppm and 1800 ppm), bending of lateral branches with partial removal of old leaves (Mid-April, Mid-May and Mid-June) and pruning of shoot with complete removal of old leaves (up to 15 cm, up to 30 cm and up to 45 cm) and water spray as control. The result indicated that all the treatment were effective in summer deblossoming and improve vegetative characters in rainy season during both the year as well as pooled data as compared to control.Among the treatments, bending in Mid-June was recorded minimum days taken to sprouting of new shoots (13.17 days), minimum days taken to emergence of new leaves (15.17 days) and maximum shoot length (7.24, 18.41 and 35.87 cm) at 30, 60 and 90 DAT followed by bending in Mid-May in pooled data.