Author(s):

Archana Rani, KK Misra, Ratna Rai and Omveer Singh

Abstract: The present investigation was carried out at Horticultural Research Centre, Patharchatta and Department of Horticulture, Govind Ballabh Pant University of Agriculture and Technology, Pantnagar, district Udham Singh Nagar (Uttarakhand), India to study the “effect of shoot pruning and paclobutrazol on growth, flowering and yield of lemon (Citrus limon Burm.) cv. Pant Lemon-1” during the year 2015 to 2017.The trial was laid out using Randomized Block Design with three replications. The treatments consists of half shoot pruning at 45 cm intensity from the terminal portion and paclobutrazol application @ 2.5 ml/tree in October to April and their combination in January, February and March and were compared with control. The result revealed that the vegetative growth, flowering, yield significantly affected by half shoot pruning and paclobutrazol application from October to April and their combinations. The treatment comprising half shoot pruning in October and application of paclobutrazol @2.5 ml/tree in March were found to more effective in terms decrease in plant height, spread, canopy volume and cross trunk sectional area, number of new shoots, shoot length, number of male flower cluster, number of hermaphrodite flowers, number of fruits, yield kg per tree and yield distribution. The harvesting period can be early in date i.e. May-June under Tarai condition of Uttarakhand by proper manipulation of early half shoot pruning and application of paclobutrazol.

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