Response of safflower genotypes (Carthamus tinctorius L.) to salinity stress via germination and early seedling growth | ||
| علوم و فناوری بذر ایران | ||
| Article 10, Volume 1, Issue 2, December 2012, Pages 212-222 PDF (271.85 K) | ||
| Document Type: Original Article | ||
| Abstract | ||
| Salinity stress is one of the most common constraints to crop productivity in the world. Therefore it is of prime necessity trying to find suitable resistant genotypes to this limiting factor. In order to study the effect of osmotic potential, on germination and early seedling growth of ten genotypes of safflower (Carthamus tinctorius L.) including KM4, KM5, KM8, KM12, KM20, KM13, KM36, KM44, KM47 and Kouse, five concentrations of NaCl (0, -0.3, -0.5 , -1 and -1.5 MPa) were treated. An experiment with factorial arrangement was conducted by using a completely randomized design with four replications in seed technology laboratory of College of Abuoraihan,University of Tehran. Germination percentage, germination rate, the length of shoot and root, length of seedling, seed vigour, germination index, mean germination time, germination rate index and root to shoot ratio measured 6 days after germination. Results of data analysis showed that there were significant difference between genotypes, stress levels and their interaction. According to the fitted logistic model, the NaCl concentration level required for 50% reduction of seed vigirity was -0.8 Mp. Cluster analysis with Wardandrsquo;s method, classified hybrids into three different groups. According to the results of this research, genotypes KM5, KM12, KM36, KM20 identified as tolerant genotypes to salinity and Kose was resistant cultivar at germination stage and early seedling growth. | ||
| Keywords | ||
| seed vigour; cluster analysis; germination rate; Logestic Model | ||
| References | ||
|
Aliary, H., and F, shekari., 2000. Oil Seeds (Agronomy and physiology). Amidi Publication. Tabriz
Almansouri, J., Kinet, M., Lutts, S., 2001. Effect of salt and osmotic stresses on germination in durum
wheat (Triticum durum Desf.) Plant and Soil. 231:243-254
Anvari, M., Mehdikhani, H., Shahriari, A. R., Nouri, Gh. R., 2009. Effects of salinity on 7 species of
range plants in germination stage. Iranian J. Range and Desert Research. 16(2): 262-273
Assadjan, N. V. and S., Miyamoto, 1983. Salt effects on alfalfa seedling emergence. Agron. J. 79: 710-714
Bajji M, Kinet JM, Lutts S. 2002 Osmotic and ionic effects of NaCl on germination, early seedling growth,
and ion content of Atriplex halimus(Chenopodiaceae). Canadian J. Boto. 80, 297 304.
Bohnert, H. J. and R. J., Jensen. 1996. Metabolic engineering for increased salt tolerance the next step.
Plant physiol. 59:661-667
Chauhan, B.S., Gill, G., and Preston, C. 2006. Factors affecting seed germination of annual sowthistle
(Sonchus oleraceus) in southern Australia. Weed Sci. 54: 854-860.
Demir Kaya, M., Gamze, O., Atak, M., Cikili, Y. and O Kolsarici. 2006. Seed treatment to overcome salt
and drought stress during germination in sunflower (Helianthus anus L.). Eur. J. Agron. 24: 291-295
Demir, M. and A. Ozturk. 2003. Effect of different soil salinity levels on germination and seedling growth
of Safflower(Carthamus tinctorius L. ). Turk. J. 27: 224-227.
Ehteshami, M. R. and M. R. Chaichi. 1998. effect of salinity on germination of two cultivars of barly.3:
23-34
Flowers, T. J., P. F. Torke and A. R. Yeo. 1997. The mechanism of salt tolerance in halophytes. Ann. Rev.
Plant Physiol. 28: 89-121.
Fowler, J. L., 1991. Interaction of salinity and temperature on the germination of crabe. Agron. J. 83:169-
173
Gholam, C., Foursy, A., Fares, K. 2002. Effect of salt stress on growth, inorganic ions and proline
accumulation in relation to osmotic adjustment in five sugar beet cultivars. Environmental and Exp. Bot. 47:
39-50
Godfery, W.N., Onyango, J.C., E., Beck,. 2007. Sorghum and salinity: 2. Gas exchange and chlorophyl11
fluorescence of sorghum under salt stress. Crop Science 44:806-811.
Haj Ghani, M., Safari, M., and E.A, Maghsodi Mod. 2008. effect of salinity levels (NaCl) on germination
and seedling growth of safflower cultivars. J. Agric. Sci. Nat. Resources. 12: 449-458
Hatami, H., and S, Galeshi., 1999. Effect of salinity levels on wheat germination. J. Agric. Sci. Nat.
Resources 1: 31-35
Irannejad, H., Javanmardi, Z., Golbashy, M., and M, Zarabi. 2009. Effect of drought stress on
germination and early seedling growth in flax cultivars (Linum usitatissimum L). 1st congress of oil crops.
University of Isfahan. pp: 154-156
ISTA, 2003, International Seed Testing Association, ISTA Handbook on Seedling Evaluation, 3rd ed.
Jamil, M., Bae Lee, D., Yony Jun, K., Ashraf, M., Chin, S. 2006. Effect of salt (NaCl) stress on
germination and early seedling growth of four vegetable species. J. Center Europ. Agric. 7, 273-282.
Kader, M. A., and S.C. Jutzi. 2004.Effects of thermal and salt treatments during imbibition on germination
and seedling growth of sorghum at 42/19˚C. J. Agron. Crop Sci. 190: 35-38.
Khajeh-Hosseini, M., Powell, A.A., Bingham, I.J., 2003. The interaction between salinity stress and seed
vigour during germination of soybean seeds. Seed Sci. Technol. 31, 715–725
Khan, M.A., Gulzar, S., 2003. Germination responses of Sporobolus ioclados: a saline desert grass. J. Arid
Environ.55, 453–464.
Kingsbury, R. W., E. Epstein and R. W. Pearcy. 1984. Physiological responses to salinity in selected lines
of wheat. Plant Physiol. 74: 417-423.
Maftoum, M., Sepasskhah, A. R. 1989. Relative salt tolerance of eight wheat cultivars. Agrochimica. 33: 1-
12.
Niemi, T. S., W.F. Campbell, and M. Rnmbaugh. 1992. response of alfalfa cultivars to salinity during
germination and post-germination growth. Crop Sci. 32: 976-980.
Pujol JA, Calvo JF, Ramı´rez-Dı´az L. 2000. Recovery of germination in different osmotic conditions by
four halophytes in Southeastern Spain. Annals of Botany 85, 279-286.
Sadatnoori, S.A., Foghi, B., Golbashy, M., avd M, Zarabi. 2009. Effects of different salinity levels on
germination indexes in four genotypes of safflower (Carthamus tinctorius L). 1st congress of oil crops.
University of Isfahan. pp: 609-611
Soltani, A., Galeshi, S., Zenali, E., and Latifi, N. 2001. germinatin seed reserve utilization and growth of
chickpea as affected by salinity and seed size. Seed Sci. Technol. 30:51-60.
Szaboles, I. 1994. Soils and salinization. In Handbook of plant and crop stress. (ed. M. Pessarakli), pp. 1- 12,
Marvel Dekker, New York.
Tobe K, Li XM, Omasa K. 2004 Effects of five different salts on seed germination and seedling growth of
Haloxylon ammodendron(Chenopodiaceae). Seed Sci.Res. 14, 345-353.
Van de Venter, A. 2001. Seed vigor testing. ISTA new bull. 122:12-14. | ||
|
Statistics Article View: 814 PDF Download: 613 |
||
Journal management system. designed by sinaweb