Department of Horticulture, N.D. University of Agriculture and Technology, Kumarganj, Faizabad 224 229
* Present address: Division of Floriculture, Medicinal and Aromatic Plants, S.K. University of Agricultural Sciences and Technology Srinagar 191 121
A study was undertaken to note the effect of growth regulators on growth and flowering of dahlia. Two growth regulators, viz. gibberellic acid (30, 60 and 90 ppm) and chlormequat (2000, 4000 and 6000 ppm) when tried with dahlia revealed that 90 ppm gibberellic acid increased plant height and leaf area maximally, while 6000 ppm chlormequat resulted in maximum reduction. Similarly, chlormequat 4000 ppm increased diameter of stem, number of branchcs and number of leaves. Significant reduction in number of days to full bloom was observed for 6000, 4000 and 2000 ppm chlormequat. Flower diameter, shelf-life and number of flowers were observed maximum with 4000 ppm chlormequat.
