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VOL. 7, ISSUE 5 (2025)
Effect of Mepiquat chloride on yield, fibre quality and biochemical constituents in Bt Cotton
Authors
SR Kareekatti, UK Shanwad, Akber SMD, Poornima Matti, VR Kulkarni, Rajesh Patil
Abstract
A field experiment was conducted to study the
effect of Mepiquat chloride on yield, fibre quality and biochemical
constituents in Bt Cotton during kharif, 2023. The use of mepiquat chloride (MC) in Bt cotton (Gossypium
hirsutumL.) cultivation has increased significantly in recent years. The
use of Mepiquat chloride, as a growth regulator, results in higher precocity
and lower height and consequently increases yield and reduces crop costs. The
objective of this study was to evaluate the effects of Mepiquat chloride @ 45
ppm at square initiation stage and at15 days after first spray, with detopping,
further the second and third spray are need based. The continuous application
of growth retardant on yield and yield parameters of compact genotypethat the
seed cotton yield (kg/ha.) was recorded maximum (1196 kg/ha.) in T7. Mepiquat
chloride @45ppm at square initiation and 15 days afterfirst spray and 15 days
after second spray ( need based) followed by T6-Mepiquat chloride@45ppm at square initiation and 15 days afterfirst spray+Detopping(1159.62kg/ha.)Analysesoffiberqualityincluded:UHML(mm),Uniformity index, Mic
(10-6g/in),Tenacity 3.2mm(g/tex), Elongation % andseed and lint index
(g).Primary and secondary metabolites level of carbohydrate, protein, tannin,
poly phenol, flavonoid and gossypolwas studied. Biochemical estimations in the
hybrid due to the chemical sprays showed that the primary and secondary
metabolites were significantly reduced in all the treatments compared to the
control.
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Pages:70-75
How to cite this article:
SR Kareekatti, UK Shanwad, Akber SMD, Poornima Matti, VR Kulkarni, Rajesh Patil "Effect of Mepiquat chloride on yield, fibre quality and biochemical constituents in Bt Cotton". International Journal of Agriculture and Plant Science, Vol 7, Issue 5, 2025, Pages 70-75
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