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Leachate Conductivity and Seed Viability in Sal (Shorea robusta Gaertn F.) Forests of Doon Valley
An investigation was carried out to evaluate the seed vigour by electrical conductivity and seed characters of five seed sources of Shorea robusta from Doon valley forest in the state of Uttarakhand. Variations were observed in seed vigour, germination, seed length and width of seeds of different seed sources of sal. Among five seed sources studied, the seeds of S. robusta of Lachhiwala region of Doon valley exhibited more seed germination with less electrical conductivity values. The study showed that germination of sal seeds could be estimated by measuring electrical conductivity of seed leachates.
Shorea robusta, Doon Valley, Seed Vigour, Germination, Uttarakhand.
- Anon. (1983). Seed Vigour Testing Handbook. Contribution No.32. Association of Official Seed Analysts: 88 pp.
- Bewley J.D. and Black M. (1994). Seeds- Physiology of development and germination. Plenum Press, New York, 445pp.
- Bhatnagar H.P. (1961). Basic information on sal (Shorea robusta) forests of U. P. deficient in natural regeneration, J. Indian Botanical Society, 40(4): 473-489.
- Bonner F.T. (1991). Estimating seed quality of southern pines by leachate conductivity. Research Paper SO-263. New Orleans, LA: USDA For. Serv., South. For. Exp. Sta: 4 pp.
- Bonner F.T. and Agmata-Paliwal A. (1992). Rapid tests of seed quality in Picea species by the leachate conductivity method. In: Proceedings of the First Northern Forest Genetics Association Conference. (DeHayes, D.H. & Hawley, G. J. Eds.). 23-25 July 1991. University of Vermont, Burlington. Pp. 69-75
- Bonner F.T. and Vozzo J.A. (1986). Evaluation of of tree seeds by electrical conductivity of their leachate. J. Seed Technology, 2: 142-150.
- Harper J.L., Lovell P.H. and Moore K.G. (1970). The shapes and sizes of seeds. Ann. Rev. Ecol. Syst., 11: 327-356.
- ISTA. (1993). International Seed Testing Association. International rules for seed testing. Seed Science and Technology, 21: 1- 288.
- Matthews S. and Whitbread R. (1968). Factors affecting pre-emergence mortality in peas. 1. An association between seed exudates and the incidence of pre-emergence mortaliy in wrinkle- seeded peas. Plant Pathology, 17 (1): 11-17.
- Nautiyal A.R. and Purohit A.N. (1985). Seed viability in sal I. Physiological and biochemical aspects of seed development in Shorea robusta. Seed Science and Technology, 13: 59-68.
- Priestley D.A. (1986). Seeed Aeging. Implications for seed storage and persistence in soil, pp.304. Ithaca, London: Comstock Publ. Assoc.
- Purohit A.N., Sharma M.M. and Thapliyal R.C. (1982). Effect of storage temperature on the viability of sal (Shorea robusta) and talura (Shorea talura) seed. Forest Science, 28:526-530.
- Sharma M.M. and Purohit A.N. (1980). Seedling survival and seed germination under natural and laboratory condition in Shorea robusta. Seed Science and Technology, 8: 283-287.
- Singh Ombir and Bonner F.T. (2001). Accelerated Aging to evaluate seed vigour in eastern white pine (Pinus strobus L.) seed. J. Tropical Forest Science, 13 (2): 283-289.
- Singh Ombir and Sofi, A.H. (2011). Clone variation of seed traits, germination and seedling growth in Dalbergia sissoo Roxb. clonal seed orchard. Annals of Forest Research, 54(2): 139-149.
- Stein W.I., Slabaugh P.E. and Plummer A.P. (1974). Harvest, processing and storage of fruits and seeds. Pp. 300-320 in Seed of Woody Plants in the United State. Agriculture Handbook No. 450. USDA Forest Service, Washington D.C.
- Tompsett P.B. (1985). The influence of moisture content and storage temperature on the viability of Shorea almon, Shorea robusta and Shorea roxburghii seed, Canadian J. Forest Research, 15:1074-1079.
- Yadav V.K., Khare P.K. and Mishra G.P. (1987). Electrical conductivity as a measure of seed viability in sal (Shorea robusta Gaertn F.). Current Science, 56 (9): 428-429.
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