Vol. 8 (4) : July-August 2017 issue
Green Farming Vol. 8 (4) : 921-925 ; July-August, 2017
Effect of paclobutrazol on vegetative and reproductive growth of grapevines
P.A. SABLEa1*, S.S. KULKARNIb2 and R.R. LIPANEa3
aDeptt. of Horticulture, College of Agriculture, Sonai, Newasa - 414 105, Dist. Ahmednagar (Maharashtra)
bAICRP on Fruit, Deptt. of Horticulture, M.P. Krishi Vidyapeeth, Rahuri - 413 722, Dist. Ahmednagar (Maharashtra)
Designation : 1,3Assistant Professor *(sable.pating@gmail.com), 2Jr. Horticulturist
Subject : Fruit Science and Pomology
Paper No. : P-6614
Total Pages : 5
Received : 16 March 2017
Revised accepted : 29 May 2017
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Citation :
P.A. SABLE, S.S. KULKARNI and R.R. LIPANE. 2017. Effect of paclobutrazol on vegetative and reproductive growth of grapevines. Green Farming Vol. 8 (4) : 921-925 ; July-August, 2017
ABSTRACT
This study consisted of two seasonal experiments and was conducted from 2013 to 2015 to investigate the effect of Paclobutrazol (PBZ) on vegetative growth and yield of grapevine. In both seasons, PBZ was applied as a soil drench at 0.25, 0.50, 0.75, 1.00 and 1.25 g. a .i per vine (Treatment T1 to T5), however, PBZ was not applied in the treatment T6 i.e. 7/5 (sub cane) and treatment T7 i.e. Sub cane + 6 BA (10 ppm) + Uracil (50 ppm). In both seasons, there was a reduction in pruning weight, average length of cane and internode count. There was also a declined average length of internodes. While, chlorophyll content was increased with higher PBZ doze. Wherein, PBZ application had negative effect on yield and yield parameters viz. average number, length, width and weight of bunches and ultimately the yield, due to reduction in vegetative growth that might have reflected in low yield by decreasing ability of the vine to supply sufficient photo-assimilates for berry development.
Key words :
Grape, Growth parameters, Paclobutrazol (PBZ), 6 BA and Uracil, Yield attributes.
