A B S T R A C T
The experiment was conducted at the Horticultural Research Station, Faculty of Horticulture, Bidhan Chandra
Krishi Viswavidyalaya, Kalyani, Nadia, West Bengal, during the period of 2007 to 2008 in randomized block design.
Paclobutrazol @ 2.5 g.a.i./tree was applied in soil drench of 25 years old un-pruned grafted mango plant cv.
Himsagar on 2nd day of each month from July to February along with the untreated control were considered as
nine treatments, that were triplicate considering each plant as replication. Among the treatments September
treatment were found to be significant influence on physiological traits- respiration rate is inhabited but rate of
photosynthesis is enhance by paclobutrazol treatment.