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- Agrawal, P.K. and Dadlani, M.O., 1995. Techniques in Seed Science and Technology. 2nd Edition, New Delhi South Asian Publishers ltd, 210 p.
- Basbag, M., Toncer, O. and Basbag, S., 2009. Effects of different temperatures and duration on germination of Capparis ovata seeds. Journal of Environmental Biology, 30 (4): 621-624.
- Berry, T. and Bewley, J.D., 1992. A role for the surrounding fruit tissues in preventing germination of Lycopersicon esculentum seeds. Plant Physiology, 100: 951-957.
- Bewley, J.D., 1997. Seed germination and dormancy.
Plant Cell, 9: 1055-1066.
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- Chien, C.T., Kuohuang, L.L. and Lin, T.P., 1998.
Changes in ultrastructure and abscisic acid level and response to applied gibberellins in Taxus mairei seeds treated with warm and cold stratification. Annals of Botany, 81: 41-47.
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- Ferasol, J.L., Lovett-Doust, L., Lovett-Doust, J. and Biernacki, M., 1995. Seed germination in Vallisneria americana: effects of cold stratification, scarification, seed coat morphology PCB concentration. Ecoscience, 2: 368-376.
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Breaking seed dormancy in Prunus dulcis. Scientia Horticulturae, 99: 363-370.
- Hartmann, H.T., Kester, D.E., Davies, F. and Geneve, R.L., 2002. Plant Propagation Principles and Practices. 7th Edition, Newjersey, Prentice Hall, 880 p.
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- Mehanna, H.T., Martin, G.C. and Nishijima, C., 1985.
Effects of temperature, chemical and endogenous hormone content on Peach seed and determination of gibberellins acid A1 and A9 in seed of Corylus avellana. Planta, 117: 101-108.
- Meyer, S.E., Monsen, S.B. and McArthur, S.B., 1990.
Germination response of Artemisia tridentate to light and chill: Patterns of between population variation. Bot. Gazette, 151: 176-183.
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Breaking seed dormancy and germination in Prunus avium
B. Shiranpour
1*, M. Tabari
2and S.M. Hosseini
21*- Corresponding author, M.Sc. graduated of Forestry, Faculty of Natural Resources, University of Tarbiat Modares, Noor, Iran.
E-mail: arsamb@yahoo.com
2- Associate Prof., Faculty of Natural Resources, University of Tarbiat Modares, Noor, Iran.
Received: 23.02.2010 Accepted: 15.08.2010
Abstract
Wild cherry (Prunus avium) is a native fast growing broadleaved tree in Hyrcanean forests producing valuable wood. Prunus seeds have long dormancy and there is variety of methods for breaking dormancy of its seed. This study was conducted in order to overcoming dormancy and germination of Prunus seed.
For this purpose, seeds were collected from Aliabad Katool region in forests of Golestsan province, north of Iran. The seeds with mosocarp, without mesocarp and without endocarp were subjected to warm stratification (4 weeks, 20 PC) followed by cold stratification (10 weeks, 5 PC). Results showed that mesocarp and endocarp had significant effects on overcoming seed dormancy and germination characteristics. Germination percent, germination speed and germination value in seeds stratified without endocarp were greater than those in seeds stratified with mesocarp and without mesocarp. The results revealed that the seeds without endocarp were the most favorable treatment to break dormancy and to improve germination characteristics in Prunus avium seeds.
Key words: dormancy, Prunus avium, seed germination, stratification.
