Published:  Apr 05, 2018DOI: 10.7324/JABB.2018.60302
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.
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
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