Abstract
Carry-over effects of paclobutrazol on various vegetative parameters of sweet cherry were studied. Paclobutrazol was applied on the basin of the trees as per trunk diameter during early spring and gibberellic acid was sprayed at full bloom. The treatment application was carried out during the first year only to assess carry-over effect during the next year. Trunk cross-sectional area, tree height and spread, tree volume, number of nodes on a linear shoot, and internode length decreased both in the year of treatment application and during the next year when no treatment was applied. Lowest increment in trunk cross-sectional area (3.37 cm),tree height (0.21 m), tree spread (0.17 m), and tree volume (3.33 m3) during the carry-over year were recorded with the maximum concentration of paclobutrazol (0.3 g/cm). Maximum number of nodes (8.67) and shorter intermodal length (2.33 cm) were observed with 0.2 g/cm TD PBZ treatment, both of which are desirable parameters for better fruit set.
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