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Volume: 6, Issue: 3, May-June, 2018
DOI: 10.7324/JABB.2018.60302

Research Article

Effect of GA3 treatments and sowing conditions on ex situ seed germination of Oroxylum indicum (L) Benth. Ex Kurz: A threatened high value medicinal plant

Aseesh Pandey1 2 3, Ngalengshim Ngashangva2 , Sushma Tamta2 3

  Author Affiliations


The objective of this study was to observe the effect of pre-sowing treatments of gibberellic acid (GA3 ) and different sowing conditions on ex situ seed germination of Oroxylum indicum. For this, after pre-sowing treatments, seeds were subjected to three different conditions for their germination. Results revealed that only GA3 treatments have no significantly different (P < 0.5) influence, on seed germination, to control. However, sowing conditions have significant (P < 0.5) influences on seed germination, and condition i (in vitro) found most suitable for the seed germination. Further, the synergistic influence of treatments and sowing conditions significantly (P < 0.5) enhanced the germination with rate. The 100 ± 00% seed germination within 7.92 ± 0.58 days having 10.5 ± 0.76 cm seedling height, and 1050 ± 76.38 seedling vigor was recorded in seeds treated with 50 µM GA3 for 24h and placed under condition (i). Well-developed seedlings were planted in the departmental garden with 90% survival rate. This effort will be helpful for the conservation of this endangered and high-value medicinal tree through ex situ reforestation programs, and to harness its potential sustainably.


Oroxylum indicum, Conservation, GA3, Seed germination, Ex situ.

Citation: Pandey A, Ngashangva N, Tamta S. Effect of GA3 treatments and sowing conditions on ex situ seed germination of Oroxylum indicum (L) Benth. Ex Kurz: A threatened high value medicinal plant. J App Biol Biotech. 2018;6(3):9-14. DOI: 10.7324/JABB.2018.60302

Copyright: Author(s). This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License, which permits non-commercial re-use, distribution, and reproduction in any medium, provided the original work is properly cited.


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