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International Journal of Current Microbiology and Applied Sciences (IJCMAS)
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National Academy of Agricultural Sciences (NAAS)
NAAS Score: *5.38 (2019)
[Effective from January 1, 2019]
For more details click here

ICV 2017: 100.00
Index Copernicus ICI Journals Master List 2017 - IJCMAS--ICV 2017: 100.00
For more details click here

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PRINT ISSN : 2319-7692
Online ISSN : 2319-7706
Issues : 12 per year
Publisher : Excellent Publishers
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Editor-in-chief: Dr.M.Prakash
Index Copernicus ICV 2017: 100.00
NAAS RATING 2018: 5.38

Int.J.Curr.Microbiol.App.Sci.2019.8(9): 1869-1877
DOI: https://doi.org/10.20546/ijcmas.2019.809.216


Studies on the Exogenous Application of Plant Growth Regulators on Morphological and Biochemical Changes in Gladiolus (Gladiolus grandiflorus L.) Leaf
Priyaranjan Koley1*, Soumen Maitraand Indrajit Sarkar2
1Department of Horticulture, M. S. Swaminathan School of Agriculture, Parlakhemundi, Orisha, India
2Department of Floriculture, Medicinal and Aromatic Plants, Uttar Banga Krishi Viswavidyalaya, Faculty of Horticulture, Pundibari, Cooch Behar, West Bengal, India
*Corresponding author
Abstract:

An experiment was conducted following Randomized Block Design at the instructional field of the Department of Floriculture, Medicinal and Aromatic Plants, Uttar Banga Krishi Viswavidyalaya, Pundibari, CoochBehar, West Bengal, India from October, 2013 to April, 2014. Three different plant growth regulators viz., Gibberellic acid (GA3), N6-Benzyladenine (BA) and Triacontanol each at 3 different levels (25ppm, 50ppm and 100ppm) were applied on Gladiolus cv. American Beauty and the effect was compared to control (distilled water). Each treatment was replicated thrice. In the present experiment, application of GA3 25ppm increased the initial leaf length (10.05 cm) and leaf chlorophyll content (62.30 SPAD value) but GA3 50ppm increased the phenol content of leaves (1.84 mg/ g of fresh wt.), whereas, GA3 100ppm increased the leaf protein content (2.49 mg/ g of fresh wt.). Exogenous application of BA 25ppm improved the reducing sugar content of leaves (4.230 mg/g of fresh weight) while, BA 100ppm improved leaf enzymatic activity (1.27 ∆490 nm/min/g fresh weight). Application of Triacontanol 50ppm improved initial plant height (14.49 cm), initial leaf production (3.08), initial and final leaf width (1.68 cm and 2.63 cm respectively), leaf enzyme activity (1.27 ∆490nm/min/g fresh weight) and final leaf length (57.96 cm). Triacontanol 100ppm improved final leaf production (11.61) and plant height (75.67 cm). Results revealed that Triacontanol 50ppm and 100ppm improved the vegetative growth of Gladiolus which is the integral activity towards improvement of the yield attributing characters and hence may be recommended for commercial cultivation of gladiolus in the Terai region of West Bengal.


Keywords: Gladiolus, Gibberellic Acid, BA, Triacontanol
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How to cite this article:

Priyaranjan Koley, Soumen Maitra and Indrajit Sarkar 2019. Studies on the Exogenous Application of Plant Growth Regulators on Morphological and Biochemical Changes in Gladiolus (Gladiolus grandiflorus l.) Leaf.Int.J.Curr.Microbiol.App.Sci. 8(9): 1869-1877. doi: https://doi.org/10.20546/ijcmas.2019.809.216