Author(s): S. PALEI, A.K. DAS AND D.K. DASH

Abstract: An experiment was carried out during winterrnseason of 2014 in Department of Fruit Science and Horticulture Technology,rnCollege of Agriculture, Orissa University of Agriculture and Technology,rnBhubaneswar, Odisha. The experiment was conducted in randomized block designrnwith ten treatments comprising of three levels each of gibberellic acid (25,rn50, 100 ppm),  ethrel (25 , 50, 100ppm)rnand  naphthalene acetic acid (25, 50, 100rnppm) replicated thrice to evaluate the effect of  these plant growth regulators on  growth, flowering and yield characters inrnAfrican marigold. Among all the treatments gibberellic acid @100 ppm resultedrnin maximum plant height, numbers of branches per plant, number of leaves perrnplant  and  plant girth ,early flower bud initiation, openingrnof first flower and maximum duration of flowering, flower stalk length, numberrnof flowers per plant, weight of flower, weight of flower per plant and flowerrnyield per  plant as compared to otherrntreatments.

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