Volume 1, Issue 2 ((Autumn & Winter) 2015)                   Iranian J. Seed Res. 2015, 1(2): 33-44 | Back to browse issues page


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Mirmahmood S J, Ahmadi-Lahijani M J, Emam Y. Effect of Cycocel Seed Priming on Osmotic Stress Tolerance in Rapeseed Germination (Brassica napus). Iranian J. Seed Res.. 2015; 1 (2) :33-44
URL: http://yujs.yu.ac.ir/jisr/article-1-76-en.html
Department of Crop Production and Plant Breeding, College of Agriculture, Shiraz University , Yaemam@shirazu.ac.ir
Abstract:   (54080 Views)

Osmotic stress is the most important of the abiotic stresses that lead to limitation of growth and yield in rapeseed. This study was conducted to examine the effect of cycocel seed priming on osmotic stress tolerance in germination and early growth stages of rapeseed, as a factorial experiment based on completely randomized design at Agriculture College of Shiraz University in 2012. The treatments included seed priming in three cycocel concentrations: 0 (without priming as control), 2.5 and 3.5 g L-1 and osmotic stress in five levels: 0 (as control), -0.3, -0.6, -0.9 and -1.2 MPa using polyethylene glycol. The results showed that osmotic stress was significantly reduced germination percentage (15.1%), germination rate (15.3%), radicle length (29.5%), plumule length (31.6%), radicle fresh weight (22.4%), plumule fresh weight (37.6%) and vigor index (39.9%). Furthermore, osmotic stress leads to increase radicle to plumule fresh weight and radicle to plumule length ratio as 6.8 and 24.3 percent, respectively. Seed priming with cycocel reduced the adverse effects of osmotic stress on measured parameters. Although, there was no positive effect on germination percentage and rate under osmotic and nonosmotic conditions for cycocel in both concentrations, but cycocel at 3.5 g L-1 appeared to have a greater positive effect than 2.5 g L-1. Considering positive impact of cycocel seed priming on the reduction adverse effects of osmotic stress further research on cycocel seed priming and osmotic stress tolerance is recommended under field conditions.

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Type of Study: Research | Subject: Seed Ecology
Received: 2014/05/17 | Accepted: 2014/11/11

References
1. Adam, N.R., Dierig, D.A., Coffelt, T.A., Wintermeyer, M.J., Mackey, B.E., and Wall, G.W. 2007. Cardinal temperatures for germination and early growth of two Lesquerella species. Industrial Crop Production, 25(1): 24-33. [DOI:10.1016/j.indcrop.2006.06.001]
2. Ashraf, M., and Harris, P.J.C. 2004. Potential biochemical indicators of salinity tolerance in plants. Journal of Plant Science, 166: 3-16. [DOI:10.1016/j.plantsci.2003.10.024]
3.  Ashraf, M.N., and Rauf, H. 2001. Inducing salt tolerance in maize (Zea mays L.) through seed priming with chloride salts: growth and ion transport at early growth stages. Acta Physiology of Plantarum, 23(4):407-417. [DOI:10.1007/s11738-001-0050-9]
4. Corbinau, F., and Come, D. 2006. Priming: a technique for improving seed quality. Seed Testing International, 132: 38-40.
5. Ellis, R.H., Hong, T.D., and Roberts, E.H. 1985. Handbook of Seed Technology for Gene Banks, Vol. 2, Rome, IBPGR, pp. 511-513.
6. Emmerich, W.E., and Hardgree, S.P. 1990. Polyethylene glycol solution contact effects on seed germination. Agronomy Journal, 82(6): 1103-1107. [DOI:10.2134/agronj1990.00021962008200060015x]
7. Froozan, K. 1997. A technique for screening of drought and saline resistant safflower varieties during germination and plant growing. Proceedings 4th International Safflower Conference. Bari, Italy. June 2-7. 170-171.
8. Ibrahim, M., Zeid, N.A., and Semary, E. 2001. Response of two differentially drought. Tolerant varieties of maize to drought stress. Pakistan Journal of Biological Sciences, 4(7): 779-784. [DOI:10.3923/pjbs.2001.779.784]
9. Ismaeil, S.M., Khafagi, O.M.A., Kishk, E.T., and Sohsah, S.M. 1993. Effect of some seed hardening treatments on germination, growth and yield of sudangrass grown under saline conditions. The Desert Institute Bulletin Egypt.
10.  Kim, S.H., and Kang, C. 1987. Vigor determination in barley seed by the multiple criteria. Korean Journal of Crop Science, 32: 417-427. Khan, A.A. 1992. Preplant physiological seed conditioning. Horticultural Reviews, 13(1): 131-181. [DOI:10.1002/9780470650509.ch4]
11.  Lewitt, J. 1980. Responses of plants to environmental stresses. Vol 1, 2nd ed. Academic Press, New York. Maguire, J.D. 1962. Speed of germination aid in selection and evaluation for seedling emergence and vigor. Crop Science, 2(2): 176-177. [DOI:10.2135/cropsci1962.0011183X000200020033x]
12.  Michel, B.E., and Kaufmann, M.R. 1973. The osmotic potential of polyethylene glycol 6000. Plant Physiology, 51(5): 914-916. [DOI:10.1104/pp.51.5.914] [PMID] [PMCID]
13. Parera, C.A., and Cantliffe, D.J. 1994. Pre sowing seed priming. Horticultural Review, 16(16): 109-141.
14. Pirasteh-Anosheh, H., Emam, Y., and Ashraf, M. 2014. Impact of cycocel on seed germination and growthin some commercial crops under osmotic stress conditions. Archives of Agronomy and Soil Science, 60(9): 1277-1289. [DOI:10.1080/03650340.2013.879119]
15. Pirasteh-Anosheh, H., Sadeghi, H., and Emam, Y. 2011. Chemical priming with urea and KNO3 enhances maize hybrids (Zea mays L.) seed viability under abiotic stress. Journal of Crop Science and Biotechnology, 14(4): 289-295. [DOI:10.1007/s12892-011-0039-x]
16.  Rajala, A. 2003. Plant growth regulators to manipulate cereal growth in Northern growing conditions. University of Helsinki, Ph.D. Thesis. 53 P.
17.  Uruc, K., and Yilmaz, D. 2008. Effect of cadmium, lead and nickel on imbibition, water uptake and germination for the seeds of different plants. Fen Bilimleri Enstitusu,1: 1-10.

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