Influence of growth regulating chemicals on growth and flowering in Jasmine (Jasminum sambac.Ait.)
DOI:
https://doi.org/10.24154/jhs.v13i2.524Keywords:
Jasmine,, growth regulators, NAA, GA, CCC,, MH, off-season floweringAbstract
Jasmine is an important commercial flower crop in Tamil Nadu. The crop has a main flowering
season during March to October and an off-season from November to February. During this
off-season, flowering is very poor or there is no flowering in many growing areas. In recent
years, growth regulators are valuable in floriculture for manipulating growth and flowering of
many crops and hence and attempt has been made to induce flowering during off season using
growth regulators in Jasmine in the Floriculture unit of the Department of Horticulture, Faculty
of Agriculture, Annamalai University, Tamil Nadu during November, 2016 to February, 2017.
The treatment comprises of three concentrations of each of two growth promoting substances
viz., NAA and GA3 and two growth retardants (Cycocel and Maleic Hydrazide). The experiment
was laid out in randomized block design with three replications. Among the various treatments,
application of NAA @ 75 ppm (T6) recorded the highest plant height (130.6 cm and 178.5 cm at
90 and 180 DAP respectively), number of primary shoots (21.68 and 35.68 at 90 and 180 DAP
respectively), number of nodes (9.86 and 15.89 cm at 90 and 180 DAP respectively) and number
of leaves (1250.0 and 2689.5 at 90 and 180 DAP respectively). Earliness in flowering (26.38
DAP) and maximum duration of flowering (171.00 days) was noticed in (GA3@ 150 ppm T3).
From the above studies, it is inferred that application of GA3 @ 150 ppm could be recommended
for enhanced growth and higher flower yield in Jasminum sambac.
References
Amit Kumar, Kumar,J., Mohan,B., Singh,J.P., Rajbeer and Ram,N. 2011. Effect of plant growth regulators on growth, flowering and yield of African marigold (Tagetes erecta L.) cv. Pusa Narangi Gainda. Asian J. Hort., 6(2): 418-422.
Baskaran, V., Misra,R.L. and Abirami,K. 2007. Effect of plant growth regulators of corm production in gladiolus. J. Ornamental Hort. Sci., 4(1): 78-80.
Bhattacharjee, S. K., 1983, Growth and flowering of Jasminum grandiflorum L. as influenced by growth regulating chemicals. Singapore J. PrimaryIndustries, 11(1): 34-38.
Cathey, M. H., 1980, Phosphon and CCC for controlling height of chrysanthemum. Floriculture Ex., 135: 12-13.
Devadanam, A., Shinde,B.N., Sable, P.B. and Vedpathak,S.G. 2007. Effect of foliar spray of plant growth regulators on flowering and vase life of Tuberose (Polyanthus tuberose L.). J. Soil and Crops, 17(1): 86-88.
Dole, J.M. and H.F. Wilkins 1999. Floriculture Principles and Species; Prentice - Hall. Inc, U.S.A, 555-558.
Dutta, J.P., Seemandhini, R. and Khader,M.A. 1993. Regulation of flowering in chrysanthemum (Chrysanthemum indicum L.)Cv.CO-1 by use of growth regulators. South Indian Hort., 41(5):293-299
Dalal. S.R, Karale, G.D. and Momin, C.K. 2009. Effect of growth regulators on growth, yield and quality of Chrysanthemum under net house conditions. Asian.J.Hort., 4(1):161-163.
Grisha, R.,Shirol,A.M., Kulkarni, B.S., Reddy,B.S. and Anupa,T. 2012. Studies on effect of different plant growth regulators on growth, flowering and quality of Daisy (Aster amellus L.) cv. Dwarf Pink. Int. J. Agric. Env. Biotech. 5(2):
-131.
Leetham, D. S., Goodwing,P.B. and Higgins, T.J.V. 1978. Phytohormones and related components, A comprehensive treatise Vol. 2, Elsevier, Amsterdam.
Narayana Gowda, J. V., 1985. Effect of gibberellic acid on growth and flowering of rose cv. Superstar. The Indian Rose Annual, IV: 185-188.
Panse, V.G. and Sukhatme,P.V.(1967). Statistical methods for Agricultural workers, ICAR, New Delhi.
Pal, P., Maity, R. G. and Bose, T. K.1980. Effect of growth regulators on Jasminum sambac var. Double. National Seminar on Production Technology for Commercial Flower Crops, 20 and 30 August, Tamil Nadu Agricultural University, Coimbatore, pp. 35-38.
Pappaiah, C. M. and Muthuswamy, S., 1978. Effect of growth regulators on growth, flowering and quality and essential oil content of Jasminum auriculatum var. Parimullai. South Indian Horti., 26: 66-71
Sen, S.K. and Maharana, T. 1971. Growth and flowering response of Chrysanthemum to growth regulator treatments. Punjab Hort. J., 11:276-279.
Shinde, K.H. , Praekh,N.S., Upadhay,N.V. and Patel, H.C. 2010. Investigation of different levels of gibberellic acid (GA3) and pinching treatments on growth, flowering and yield of chrysanthemum (Chrysanthemum morifolium Ramat.) cv. IIHR-6 under middle Gujarat conditions. Asian J. Hort., 5(2): 416-419.
Sridhar, P., Angadi,S.G., Kiranmai,S. and Anil Kumar. 2013. Effect of growth promoters and growth retardants on different growth parameters in jasmine (Jasminum auriculatum vahl.). Plant Archives., 13(1): 569-571.
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