1. Abdul-Baki A.A. and Anderson J.D., 1973. Vigour determination in soybean seed by multiple criteria. Crop Science, 13(6), pp.630-633. https://doi.org/10.2135/cropsci1973.0011183X001300060013x
2. Anon.,1959. The Wealth of India, Raw Materials, Publication and Information Directorate, CSIR, New Delhi, Vol. 5, H-K: 332p
3. Bhatnagar, H.P., 1980. Preliminary studies on the effect of gibberellic acid on seed germination of Pinus caribaea and Pinus patula. Indian J. Forest., 3(2), pp.156-158
4. Bisht, A.S., Nautiyal, B.P. and Bhatt, A.B., 2009. Propagation and Growth Performance of Hedychium spicatum Smith. Under Different Hormonal and Soil Treatments. Indian Forester, (1), pp.60-65
5. Chandra, J.P. and Chauhan, P.S., 1976. Note on germination of spruce seed with gibberellic acid. Indian Forester, 102(10), pp.721-724
6. Chauhan, N.S., 1999. Medicinal and Aromatic Plants of Himachal Pradesh. Indus Publishing Company. New Delhi
7. Dhar, U., Rawal, R.S., Manjkhola, S, Bisht, A.K., Joshi, M., Bhatt, A. and Bisht, G.S., 2003. Conservation, Propagation and Utilization of High Value Medicinal Plants of Himalaya. GBPIHED, Almora. Uttarakhand
8. Gautam, J. and Bhardwaj, S.D., 2001. Effect of seed size and pre-sowing treatments on germination of Ban Oak (Quercus leucotricophora). Indian J. Forest., 24(3), pp.311-315
9. Gera, M., Gera, N. and Aslam, M., 2003. Improving germination in Pinus wallichiana through pre-sowing seed treatment. Seed Research, 31(1), pp.110-112
10. ISTA., 1985. International Rules for Seed Testing. International Seed Testing Association. Seed Science & Technology, 13, pp.322-341
11. Gaur, R.D., 1999. Flora of District Garhwal, North West Himalaya (With Ethno botanical Notes). Transmedia Publication, Srinagar (Garhwal), India
12. Giri, D. and Tamta, S., 2012. Effect of pre-sowing treatments on seed germination in Hedychium spicatum: An important vulnerable medicinal plant of Indian Himalayan region. Scientific Research and Essays, 7(19), pp.1835-1839. https://doi.org/10.5897/SRE11.1349
13. Kamel, H.A. and Nada, M.K.A., 1986. Studies on germination of Cassia fistula seed. Annals of Agricultural Sciences, 24(3), pp. 1591-1599
14. Larionova, N.A., 1997. Use of hormone substances to improve seed quality and the growth of conifer seedlings in the Krasnoyarsk territory. Lesnoe Khozyaistvo, 6, pp.28-30
15. Lavania, S.K., Singh, R.P. and Singh, V., 2006. Effect of gibberellic acid and pH on seed germination in Blue pine (Pinus wallichiana, A.B. Jacks). Indian Forester, 132(8), pp.1024-1028
16. Masoodi, H., 1990. Standardization of nursery techniques in Acer oblongum. M. Sc. Thesis, Dr. Y.S. Parwar University of Horticulture and Forestry, Nauni, Solan, India
17. Negi, P.S. and Sharma, S., 2011. Study on effect of gibberellic acid treatments on germination behaviour of Fraxinus xanthoxyloides (Wall. Ex G. Don) DC. Seeds. Indian J. Forest., 34(4), pp.409-413
18. Sankhyan, H.P., Sehgal, R.N. and Bawa, R., 2008. Influence of seed size and pre-sowing treatments on the germinability attributes of Quercus glauca Thunb. (Bani Oak) in Himachal Pradesh. Annals of Forestry, 16(2), pp.295-300
19. Singh, V., 1989. Role of stratification and gibberellic acid in Spruce Seed germination. Indian J. Forest., 12(4), pp. 269-275
20. Singh, V., Bana, O.P.S. and Sah, V.K., 1995. Influence of seed size and GA3 treatment on the germination and growth of Ban oak (Quercus leucotricophora). Indian J. Forest., 18(1), pp.66-73
21. Thakur, R.S., Puri, H.S. and Husain, A., 1989. Major Medicinal Plants of India, CIMAP, Lucknow, India
22. Verma, A.N. and Tandon, P., 1988. Effect of growth regulators on germination and seedling growth of Pinus kesiya and Schima khasiana. Indian J. Forest., 11(1), pp.32-36