Effect of pre harvest foliar spray of growth regulators on pre and post harvest parameters in ornamental sunflower genotype M-17R
DOI:
https://doi.org/10.24154/jhs.v13i1.32Abstract
An experiment was conducted to study the effect of pre harvest foliar application of growth regulators on the pre and post harvest flower quality in ornamental sunflower during the year 2012-13, at College of Horticulture, GKVK campus, UHS, Bagalkot. At 60 DAS highest plant height was with GA3 @ 150 ppm (154.73 cm) followed by GA3 @ 200 ppm (146.20 cm) and GA3 @ 250 ppm (145.53 cm). Sodium silicate @ 250 ppm (4508.77 cm2) registered maximum plant spread at 60 DAS. Foliar application of GA3 @ 150 ppm (25.00) produced highest number of leaves which was at par with Sodium silicate @ 250 ppm, GA3 @ 200 ppm and GA3 @ 250 ppm recording 24.87, 24.80 and 24.67 leaves respectively. Calcium sulphate @ 200 ppm registered highest leaf area of (4930.30 cm2) which was at par with Sodium silicate @ 250 ppm, Calcium sulphate @ 300 ppm, Chlormequat chloride @ 500 ppm, Sodium silicate @ 350 ppm, and Chlormequat chloride @ 1000 ppm with 4792.64, 4735.04, 4721.75, 4503.05 and 4430.02 cm2 respectively.
References
Chikkur, S. S., 2010, Silicon as foliar spray on growth, yield and quality of Rose. M.Sc. Thesis, Univ. Agri. Sci. Bengaluru.
Dorajirao, A. V. D., Mokashi, A. N., Patil, V. S., Venugopal, C. K., Lingaraju, S. and Koti, R. V., 2010, Effect of plant spacing on growth, yield and benefit-cost ratio in garland chrysanthemum (Chrysanthemum coronarium L.). J. Asian Hort., 6 (3): 87-93.
Dutta, J. P., Ramadas, S.and Khadar, M. D., 1993 Regulation of flowering by growth regulators in chrysanthemum (chrysanthemum indicum. Linn.) Cv. Co1. S. I nd.Hort., 41 (5): 293-299.
Herrera, O. J. And Benedetto, A. H., 1992, New growth retardant uniconazole for cut chrysanthemums. Rev. Fac. Agron., 13 (2-3): 137-143.
Kamenidou, S., 2005, Silicon supplementation affects greenhouse produced cut flowers. M.Sc. Thesis. Oklahoma State University. Stillwater, Oklahoma.
Kameniduo, S. And Todd, J. C. And Stephen, M., 2008, Silicon supplements affect floriculture quality traits and elemental nutrient concentrations of greenhouse produced gerbera. Scien. Hort., 123: 390-394.
Katkar, P. B., Naik, D. M., Boodamwad, S. G. and Gharat, S. N., 2003, Influence of plant growth regulators on flowering, quality and yield of flower in china aster cv. California giant mix. S. Ind. Hort., 53(1-6): 378-381.
Kore, V. N., Meman, S. L. and Burondkar, M. M., 2003, Effect of GA3 and fertigation on flower quality and yield of China aster (Callistephus chinensis L.) var. “Ostrich Plume Mixed” under Konkan agro-climatic conditions. The Orissa J. of Hort. 31(1): 58-60.
Lokhande, B. S., Deshmukh, M. and Kawarkhe, V. J., 2008, Effect of growth regulators on growth and flower yield of annual chrysanthemum. Ann. Plt. Phsio., 22 (2): 268-271.
Leshem, Y. Y. 1992, Plant Membrane: A Biophysical Approach to Structure, Development and Senescence. Kluwer Academic Publisher, Dordrecht. ISBN 0-7923-1353-4.
Michalczuk, B., Goszczynska, R. D., Rudnicki, D. and Halevy, A. H., 1989, Calcium promotes longevity and bud opening in cut rose flowers. Israel J. Bot., 38: 209-215.
Muhammad A., Sharafat, K., Shah, A. H. and Khalil, S. A., 1997, Response of large flowered incurve chrysanthemum (Chrysanthemum morifolium) to various concentrations of paclobutrazol. Sarhad J. Agri., 13(2): 117-122.
Panse, V.S and Sukhatamane, P.V., 2002, Statistical methods for Agriculture workers, ICAR, New Delhi, pp: 152- 155.
Parmeshwar, A. S., 2010, Evaluation of sunflower (Helianthus annuus L.) germplasm for ornamental cut flower production. MSc. Thesis Univ. Agri. Sci., Bengaluru.
Patil, V. S., 1998, Standardization of production technology in daisy (Aster amellus L.). Ph.D. Thesis. Univ. of Agric. Sci., Dharwad.
Syamal, M., Rajput, C. B. S., Upadhyay, R. K. and Singh, J. N., 1990, Effect of GA3 and MH on growth, flowering and seed yield of Marigold and China aster. Indian J. Hort., 47 (4): 439-441.
Spitzer, T., Matusinsky, P., Klemova, Z. and Kazda, J., 2011, Management of sunflower stand height using growth regulators. Plant soil environ. 57(8): 357–363.
Srikanth, L. G., 2011, Influence of growth regulators on growth, flowering and yield of china aster (Callistephus chinensis L. Nees). M.Sc. Thesis, Univ. Agri. Sci. Bengaluru.
Torre, S., Borochov, A. and Halevy, A. H., 1999, Calcium regulation of senescence in rose petals. Physiol. Plant., 107: 214-219.
Wroblewska, K. and Debicz, R., 2011, The effect of silicon application on the development of season ornamental plants. Acta Agrobotanica, 64 (4): 107-114.
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Copyright (c) 2018 Kirtimala B Naik, S K Nataraj, Y G Shadakshari, D P Kumar, G K Seetharamu, K V Jayaprasad (Author)
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