Effects of pruning and growth regulators on off-season flower induction in ‘Udupi Jasmine’
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https://doi.org/10.58993/ijh/2025.82.2.14Keywords:
Udupi jasmine, off-season, pruning, growth regulatorIssue
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Copyright (c) 2025 Shreedevi Badiger, Nataraj S K, Satish K M, Chaitanya HS, Srinivasa V, Harish B M M
This work is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License.
‘Udupi Jasmine’ (Jasminum sambac var. aeyaneanum) is an important flower crop of coastal Karnataka possessing a geographical indication tag, having peak season during March-April and an off-season for blooming commencing during November-February. Present study was conducted to induce off-season flowering through growth regulators and pruning in ‘Udupi Jasmine’ by treating with different growth regulators and pruning intervals and elucidate the interaction between both on plant growth and flowering traits of the crop. The effect of pruning in October recorded the highest plant height (109.08cm), number of primary shoots (24.11) number of secondary shoots (111.58), number of flowers per shoot (108.71), individual flower weight (0.07g) and flowers weight per plant (111.85g) and the plant growth regulator GA3 @ 150ppm recorded the highest plant height (119.02cm), number of primary shoots (33.28) and number of secondary shoots (130.75), number of flowers per shoot (118.00) and flowers weight per plant (132.22g) and CCC at 1200ppm shown to increase flower weight (0.09g). Interaction between October pruning and growth regulator GA3 @ 150 ppm reported the highest plant height (124.44 cm), number of primary shoots (33.80), number of secondary shoots (134.97), number of flowers per shoot (122.87) and flowers weight per plant (135.78g). Whereas, the maximum individual flower weight (0.10g) was recorded in plant pruned during November with CCC f oliar spray at 1200ppm.Abstract
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Anoopdas, S.G. and Fatmi, U., 2022. Performance of Different Varieties of Jasmine (Jasminum sambac) under Prayagraj Agro-climatic Conditions. Int. J. Plant Soil Sci. 34: 965-69. https://doi.org/10.9734/ijpss/2022/v34i242724 Bailey, L.H. 1958. Manual of cultivated plants. Macmillan and Co, New York. Chandraju, S., Thejovathi, C. and Kumar, C.C., 2013. Impact of distillery spentwash irrigation on the yield of Jasmine (Oleaceae) flowering plant. Curr. Bot. 3. Dhansekaran, D. 2018. Influence of growth regulating chemicals on growth and flowering in Jasmine (Jasminum sambac.Ait.) J. Hort. Sci. 13: 221-26. https://doi.org/10.24154/jhs.v13i2.524 Harkulkar, B.P., Dalvi, N.V., Salvi, B.R., Pawar, C.D. and Deshpande, R.S. 2022. Effects of pruning levels and growth regulators on Jasmine (Jasminum sambac L.) under Konkan condition. J. Eco-friendly Agric. 17: 22-4. https://dpo.org/10.5958/2582-2683.2022.00005.3 Keerthishankar, K., Yathindra, H.A., Seetharamu, G.K., Mohan Kumar, S. and Kulkani, B.S., 2022. Yield and economic analysis of off-season flower induction in GI tagged Mysuru Jasmine (Jasminum sambac) as influenced by pruning month, growth regulators and regular application of fertilizers. J. Pharm. Innov. 11: 1602-08. Naik, B.P., Bhatt, S.T., Dipal, B., Patel, G.D., Gaikwad, S.S. and Dipika, G. 2019. Effect of different stimulants on off season flowering in Jasminum sambac L. Int. J. Chem. Stud. 7: 2022-26. Palanikumar and Rameesh. 2021. Induction of off-season flowers in jasmine (Jasminum sambac AIT) cv. Gundumalli. Int. J. Curr. Res. 13: 19972-19978. Panse, V.G. and Sukhatme, P.V. 1967. Statistical Methods of agricultural Workers. I.C.A.R Publication, New Delhi, India. Pawar, R., Bhatt, S.T. and Bhatt, D. 2019. Influence of time and level of pruning on flowering yield in Jasminum sambac var. Baramasi under South Gujarat condition. J. Pharmacogn. Phytochem. 8: 1975-77. Sekhar, C.T., Saravanan, S.S. and Sreethu, S. 2020. Effect of plant growth regulators on growth and flower yield of jasmine (Jasminum nitidum) c.v CO-1 (Star Jasmine). Int. J. Curr. Microbiol. Appl. Sci. 9: 3587-92. https://dpo.org/10.20546/ijcmas.2020.929.443 Singh, A. K. (2006). Flower Crops. New India publishing Agency, Pitam Pura, New Delhi, India. Suganya, S., Rajamani, K., Ganga, M., Jeyakumar, P., Latha, M.R. and Padmapriya, S. 2023. Response of growth and flowering characters of jasminum sambac (l.) to modified planting system and pruning schedule. Res. J. Agric., Ani. Vet. Sci. 1-6. https://dpo.org/10.18805/ag.D-5716 Win, K.M., Korinsak, S., Jantaboon, J., Siangliw, M., Lanceras-Siangliw, J., Sirithunya, P., Vanavichit, A., Pantuwan, G., Jongdee, B., Sidhiwong, N. and Toojinda, T., 2012. Breeding the Thai jasmine rice variety KDML105 for non-age-related broad-spectrum resistance to bacterial blight disease based on combined marker-assisted and phenotypic selection. Field Crops Res. 137:186-94. https://doi.org/10.1016/j.fcr.2012.09.007
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