Author(s):

P Prasanth Kumar and Dr. Suchit A John

Abstract: A field experiment was conducted during Rabi 2015-2016 to study the effect of plant growth promoters and growth retardants on growth parameters of mustard (Brassica juncea L.) at the research field of Dept. of Biological Sciences, SHIATS, Deemed to be university, Allahabad. The experiment consisted of plant growth promoters and growth retardants i.e., GA₃, NAA, Cycocel and Ethrel. The growth promoters and growth retardants at concentrations of 100, 200 and 300ppm as foliar treatments. The experiment was laid out in RBD with three replications and the treatments were imposed at 30, 45, 60, 75 and 90 DAS. Among the all treatments application of NAA @ 100ppm has significantly increased plant height (cm), number of branches per plant, number of leaves per plant, total dry matter content (gm) per plant. Cycocel @ 300ppm was found beneficial in decreasing plant height (cm).

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