References
- ALDHOUS, J. R. (1972): Nursery practice. Forestry Commonwealth Bulletin, No. 45: 16-17, London.
- COSTALES, A. B. and V. P. VERACION (1978): Germination of Benguet pine seeds at various intervals of watering. Sylvatrop 3(4): 243-245.
- CZABATOR, F. J. (1962): Germination Value: an index combining speed and completeness of pine germination. Forest Science 8: 386-396.
- GINWAL, H. S. and M. GERA (2000): Genetic variation in seed germination and growth performance of 12 Acacia nilotica provenances in India. Journal of Tropical Forest Science 12(2): 286-297.
- GINWAL, H. S., P. S. RAWAT and R. L. SRIVASTAVA (2004): Seed source variation in growth performance and oil yield of Jatropha curcas Linn. in central India. Silvae Genetica 53(4): 186-192.
- GUPTA, S. P. (1994): Statistical methods, XV Ed. Sultan Chand and Sons, Darya Ganj, New Delhi.
- HELLER, J. (1996): Physic nut. Jatropha curcas L. Promoting the conservation and use of underutilized and neglected crops. 1. Institute of Plant genetics and Crop Plant Research, Gatersleben/IPGRI, Rome. 66pp.
- JOHNSON, H. W., H. F. ROBINSON and R. F. COMSTOCK (1955a): Estimates of genetic and environmental variability in Soyabean. Agron. J. 47: 314-318.
- JOHNSON, H. W., H. F. ROBINSON and R. F. COMSTOCK (1955b): Genotypic and phenotypic correlation in soybean and their implication in selection. Agron. J. 47: 477-483.
- MATHUR, R. S., K. K. SHARMA and M. M. S. RAWAT (1984): Germination behaviour of provenances of Acacia nilotica sp. indica. Indian Forester 110: 435-449.
- OKORO, O. O. (1976): Germination of Terminalia ivqrensis seeds source under various conditions of germination. In ‘Seed problem’ Proceedings second international symposium on physiology of seed germination. October 1976, IUFRO, Fiji, Japan.
- ROY, S. M., R. C. THAPLIYAL and S. S. PHARTYAL (2004): Seed source variation in cone, seed and seedling characteristic across the natural distribution of Himalayan low-level pine Pinus roxburghii Sarg. Silvae Genetica 53(3): 116-123.
- ROYAL HORTICULTURE SOCIETY (1966): Colour chart of Royal Horticulture Society, London. L. in Costa Rica. Commonwealth Forestry Review 66: 317-324.
- SALZAR, R. and M. QUESADA (1987): Provenance variation in Guazuma ulmifolia L. in Costa rica. Commonwealth Forestry Review 66, 317-324.
- SCHMIDT, L. (2000): Guide to handling of tropical and sub tropical forest seeds. Danida forest seed center, Krogerupvej-21, Denmark.
- TURNBULL, J. W. (1975): Seed collection - sampling consideration and collection tech. In report of FAO/DANIDA training course of forest seed collection on handling held in Chiang Mai, Thailand, Feb/March, FAO/TF/RAS-11(DEN), FAO, Rome.
- VAKSHASYA, R. K., O. P. RAJORA and M. S. RAWAT (1992): Seed and seedling traits of Dalbergia sissoo Roxb.: Seed source variation studies among ten sources in India. Forest Ecology and Management 48: 265-275.10.1016/0378-1127(92)90149-4
- WHITTINGTON, W. J. (1973): Genetic regulation of germination. pp. 5-30 in Seed Ecology, edited by W. HEYDECTER, Butterworth, London,
- WILLAN, R. L. (1985): A guide to forest seed handling with particular reference to the topics. FAO Forestry paper 20/2.