EFFECT OF PLANT GROWTH REGULATORS ON ROOTING BEHAVIOR INDENDROCALAMUS STRICTUS (ROXB.) NEEDS THROUGH BRANCH CUTTINGS

A. TRIPATHI¹*, S. BARTHWAL², A. THAKUR³, C. KAINTHOLA⁴, S. JABEEN⁵, R. SAHA^6
1Division of Genetics and Tree Improvement, Forest Research Institute, Dehradun, 248006, Uttarakhand, India
²Division of Genetics and Tree Improvement, Forest Research Institute, Dehradun, 248006, Uttarakhand, India
³Division of Genetics and Tree Improvement, Forest Research Institute, Dehradun, 248006, Uttarakhand, India
⁴Division of Genetics and Tree Improvement, Forest Research Institute, Dehradun, 248006, Uttarakhand, India
⁵Division of Genetics and Tree Improvement, Forest Research Institute, Dehradun, 248006, Uttarakhand, India
⁶Division of Genetics and Tree Improvement, Forest Research Institute, Dehradun, 248006, Uttarakhand, India
* Corresponding Author : saharomeet@gmail.com

Received : 21-02-2020     Accepted : 13-03-2020     Published : 15-03-2020
Volume : 12     Issue : 5       Pages : 9608 - 9610
Int J Agr Sci 12.5 (2020):9608-9610

Keywords : Dendrocalamus strictus, Monocarpic, Macropropagation, IAA, IBA and NAA
Academic Editor : Anindita Paul, Dmello Basil Rudolph
Conflict of Interest : None declared
Acknowledgements/Funding : Authors are thankful to Authors are thankful National Bamboo Mission, New Delhi and Division of Genetics and Tree Improvement, Forest Research Institute, Dehradun, 248006, Uttarakhand, India
Author Contribution : All authors equally contributed

Bamboo, a fast growing woody grass, exhibits multidimensional significance for humankind. Among various species, Dendrocalamus strictus covers around 45% of total bamboo resource of the country. To meet the public and industrial demand, large scale propagation becomes crucial but due to irregular flowering cycle and monocarpic nature, seed based propagation is limited. Due to abundant availability and easy handling practices, a branch cutting based macropropagation experiment was performed in the mist chamber of Forest Research Institute, Dehradun. Experiment was designed in completely randomized design. Three various plant growth regulators viz. IAA, IBA and NAA were used with concentration 2000 and 4000ppm. Result showed that IBA_2000 treatment was best for the branch cuttings of D. strictus where maximum root length and root number was found to be 25 cm and 20 respectively. There is significant difference in the root length and root numbers of various treatments. Overall rooting percentage was 25.40% with maximum percentage of 66.66% in IBA_2000ppm treatment. This method is effective for the mass propagation of D. strictus.

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