International Journal of Chemical Studies
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P-ISSN: 2349-8528, E-ISSN: 2321-4902   |   Impact Factor: GIF: 0.565 NAAS Rating: 5.31 NEW

International Journal of Chemical Studies

Vol. 5, Issue 6 (2017)
Influence of time of pruning and plant growth retardants on growth and off season flower production in Jasminum sambac (L.)


Author(s): M Kalaimani, M Kannan, KR Rajadurai, P Jeyakumar and M Mohamed Amanullah

Abstract: An experiment was conducted at the Botanic Gardens, Department of Floriculture and Landscaping, Horticultural College and Research Institute, Tamil Nadu Agricultural University, Coimbatore during 2016 - 2017 to study the influence of time of pruning and plant growth retardants on growth and off-season flower production in Jasminum sambac (L.). The study was conducted using Factorial Randomized Block Design (FRBD). The results revealed that the plant spread (73.21 cm), number of primary branches (12.90), number of secondary branches (31.90) and number of flower buds per cyme (7.70), weight of 100 flower buds (28.00 g), flower yield per plant (222.47 g) and flower yield per ha (1423.81 kg) registered its superiority in the plants pruned during last week of September with the combination of foliar spray of mepiquat chloride @ 150 ppm. However, increased plant height (96.05 cm) recorded in the plants pruned during last week of August without any growth retardant spray. With respect to earliness in flowering, the number of days taken for first harvest of flower buds was registered earliest (28.00 days) in the plants pruned during last week of September along with foliar spray of mepiquat chloride @ 50 ppm. Thus, plants pruned during last week of September along with the foliar spray of mepiquat chloride @ 150 ppm not only enhanced many growth parameters but also increased the flower production during off season (December - February) which enable the growers to obtain premium price in the market, during off season.


Pages: 1277-1281  |  414 Views  10 Downloads

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How to cite this article:
M Kalaimani, M Kannan, KR Rajadurai, P Jeyakumar, M Mohamed Amanullah. Influence of time of pruning and plant growth retardants on growth and off season flower production in Jasminum sambac (L.). Int J Chem Stud 2017;5(6):1277-1281.
International Journal of Chemical Studies