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Effect of Plant Growth Retardants on Growth, Flowering and Yield of Chrysanthemum (Chrysanthemum Morifolium Ramat.) cv. IIHR-6

Mital Vaghasia, N. D. Polara

Abstract


The present experiment was conducted on chrysanthemum (Chrysanthemum morifolium Ramat.) cv. IIHR-6 at Jambu Vadi Farm, College of Agriculture, JAU, Junagadh during winter season of 2013-14 under South Saurashtra agro climatic condition. The experiment was laid out in Randomized Block Design with Factorial concept with two time of spray viz., spray at 30 days after transplanting (S1) and spray at 60 days after transplanting (S2) and six treatment of plant growth retardants viz., MH 500 @ mg l-1 (P1), MH 700 @ mg l-1 (P2), CCC @ 2000 mg l-1 (P3), CCC @ 2500 mg l-1 (P4), PCB @ 0.4 ml l-1 (P5), PCB @ 0.5 ml l-1 (P6) were sprayed including control (P7). The effect of different time of sprays and plant growth retardants on growth, flowering and yield of chrysanthemum cv. ‘IIHR-6’ were found significant. The vigorous growth in terms of plant height at 90 DAT (52.65  cm) and at the time of final harvest (63.34 cm) was noticed the highest in control (P7)  treatment while, the number of branches per plant at 90 DAT (28.80) and at the time of final harvest 34.89), plant spread in N - S (52.15 cm and 60.78 cm) and E - W direction (53.25 and 62.45 cm) at 90 DAT and at time of final harvest, respectively; fresh weight of plant (317.55 g) and dry weight of plant (35.87 g) recorded maximum under plant receiving MH @ 700 mg l-1 (P2). Consequently, these plants produced early flowers (70.94 days), took minimum days for 50 per cent flowering (101.16 days) with maximum flowering span (46.36 days), flower diameter (6.33 cm), shelf life  (5.00 days) of flower as well as vase life  (9.05 days) of flower. The yield of flowers (13.43 t ha -1) also produced maximum in these treatment. Interaction between different time of spray and plant growth retardants was found to be non significant in case of growth, flowering and yield of flowers, except diameters of flower. Economics of chrysanthemum indicated that the plant sprayed at 30 days after transplanting (S1) and treated with MH @ 700 mg l-1 (P2) found most remunerative as they gave highest net returns (Rs. 208980) with maximum Benefit Cost Ratio (1:4.50). It can be concluded that the foliar application of MH @ 700 mg l-1 at 30 days after transplanting proved superior in terms of growth, flowering, flower yield and more economical as compared to all other growth retardants treatments.

 

Handle: http://hdl.handle.net/20.500.11903/mjmbr.v2n2.14

 


Keywords


Growth retardants, time of spray, flower yield, chrysanthemum

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References


Anonymous (2010-11b). Director of Horticulture, Gujarat state, Gandhinagar.

Aswath, S., Narayana Gouda, J. V. and Anand Murthy, G. M. (1994). Effect of growth retardants on growth, flowering and nutrient content in china aster [Callistephus chinensis (L.) Nees.] cv. Powder paft mixed. J. Ornamental Hort., 2(1-2): 9-13.

Crafts, A. C., Currier, H. B. and Day, B. E. (1950). Response of several crop plants and weed to maleic hydrazide. Hilgardia, 20: 57-80.

Datta, J. P., Ramdas, S. and Khader, M. A. (1993). Regulation of flowering by growth regulators in chrysanthemum (Chrysanthemum indicum L.) cv. ‘CO-1’. South Indian Hort., 41(5): 293-299.

Henrsel, J. W. (1985). Benzia new growth regulator for evergreen aza, Deutscher gontobnban, Institute for Zeirpflangenban, Melles Belgium. 29(37): 1742-1746.

Hugar, A. H. and Nalawadi, U. G. (1999). Effect of growth regulators on morphological characters, flower production and seed yield of gaillardia. Karnataka J. Agric. Sci., 12(1/4): 226-229.

Khandelwal, S. K., Jain, N. K. and Singh, P. (2003). Effect of growth retardants and pinching on growth and yield of African marigold. J. Ornamental Hort., 6(3): 271-273.

Khimani, R. A., Patil, A. A. and Kanamadi, V. C. (1994). Effect of growth retardants on growth and flower production of gaillardia (Gaillardia pulchella var.’Picta Fouger’). Floriculture Technology, Trades and Trends. Prakash, J. and Bhandari, K.R. (eds.), Oxford and IBH Publishing Co. Pvt. Ltd., New Delhi, pp. 119-121.

Kumar, K. P. (1987). Studies on the effect of nutrients and growth retardants on growth, flowering and quality of African marigold (Tagetes erecta L.). M.Sc. (Agri) Thesis, University of Agricultural Sciences, Bangalore.

Makwana, M. K. (1999). The effect of plant growth regulators on growth, yield and quality of gaillardia (Gaillardia pulchella) cv. ‘Lorenziana’. M.Sc. (Agri.) thesis submitted to Gujarat Agricultural University, Sardar Krushinagar.

Narayanagouda, J. V. (1985). Investigation on horticultural practices in the production of China aster (Callistephus chinensis Nees.). Ph.D. Thesis, University of Agricultural Sciences, Bangalore.

Narayanagouda, J. V. and Jayanthi, R. (1991). Effect of cycocel and maleic hydrazide on growth and flowering of African marigold. Prog. Hort., 23(1-4): 114-118.

Parmar, A. S. and Singh, S. N. (1983). Effect of plant growth regulators on growth and flowering of marigold (Tagetes erecta). South Indian Hort., 31(1): 53 – 54.

Patel K. R. (1990). Effect of plant growth regulators on growth, flowering and flower yield of marigold (Tagetes erects L.) cv. ‘Lemon’. M.Sc. (Agri.) thesis submitted to Gujarat Agricultural University, Sardar Krushinagar.

Patel, S. L. (1997). Effect of plant growth regulators on growth, flowering and flower yield of annual gaillardia (Gaillardia pulchella Foug.) var. ‘Lorenziana’. M.sc (Agri.) Thesis submitted to Navsari Agricultural University, Navsari.

Radmacher W (1991). Gibberellins by N. Takahashi, B. O. Phiney and J. Macmillan.

Saiyad, M. Y., Jadav, R. G., Parmar, A. B. and Chauhan K. M. (2009). Effect of plant growth retardents and pinching on growth, flowering and yield of gaillardia (Gaillardia pulchella). Prajana J. pure and Applied Sci., 17: 55-57.

Sehrawat, S. K., Dahiya, D. S., Sukhbir Singh. and Rana, G. S. (2003). Effect of nitrogen and pinching on the growth, flowering and yield of marigold (Tagetes erecta L. ) cv. African Giant Double Orange. Haryana J. hort. Sci., 32(1/2):59-61.

Shanmugam, A. and Muthuswamy, S. (1974). Effect of CCC and TIBA on chrysanthemum. Indian J. Hort., 31: 370-374.

Sharma, H. G., Verma Vijay Jain, L. S. and Tiwari, B. L. (1995). Effect of foliar application of some plant growth regulators on growth and flowering of chrysanthemum var. ‘Move-in-carvin’. Orissa J. Hort., 23(1&2): 61-64.

Shreedhar, D. (1993). Effect of growth regulators on growth and flower yield of gailardia (Gaillardia pulchella fouger) cv. Khanabargi local. M.Sc. (Agri.) Thesis, University of Agricultural Sciences, Dharwad.

Singh, A. K. (2004). Growth and seed yield of African marigold as influenced by growth retarding chemicals. South Indian Hort., 52: 377-380.

Sunitha, H. M., Hunje Ravi, Vyakaranahal B. S. and Bablad H. B. (2007). Effect of pinching and growth regulators on plant growth, flowering and seed yield of African marigold (Tagetes erecta Linn.). J. Ornamental Hort., 10(2): 91-95.

Talukdar, M. C. and Paswan, L. (1997). Growth and flowering in chrysanthemum (Dendranthema grandiflorum Tzveley) cv. ‘Maharaja’ as influenced by GA3 and cycocel. Haryana J. Hort. Sci., 26(1-2): 55-57.

Weaver, R. J. (1972). “Plant Growth Substances in Agricultureâ€. W.H. Freeman and Company. San Francisco. pp. 106-179.

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