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The influences of simulated moisture stress conditions and osmotic substrates on germination and growth of cultivated and wild safflowers

Published online by Cambridge University Press:  27 March 2009

A. Bassiri ,
M. Khosh-Khui  and
I. Rouhani
A. Bassiri
Affiliation:
College of Agriculture, Pahlavi University, Shiraz, Iran
M. Khosh-Khui
Affiliation:
College of Agriculture, Pahlavi University, Shiraz, Iran
I. Rouhani
Affiliation:
College of Agriculture, Pahlavi University, Shiraz, Iran
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Summary

Comparisons were made between cultivated safflower varieties (Carthamus tinctorius L.) and six wild ecotypes (C. oxyacantha Bieb.) for their tolerance to simulated drought conditions. Plant characteristics of the wild strains were noted and soil samples from their collection sites were analysed for the electrical conductivity of the saturation extract. Polyethylene glycol 6000, mannitol and sodium chloride were used as osmotic substrates to prepare aqueous solutions having 0, 1, 2, 5, 8, 12, 15 and 18 atm. of osmotic potentials (OP). The influences of treatments were studied on seed germination, shoot length and fresh and dry weights of shoots and roots of seedlings.

Increased OPs progressively delayed and reduced seed germination, shoot length and fresh and dry weights of seedlings. Shoots were, however, more adversely affected than roots. Wild ecotypes were apparently more sensitive to high OPs than the cultivated varieties.

Type
Research Article
Information
The Journal of Agricultural Science , Volume 88 , Issue 1 , February 1977 , pp. 95 - 100
Copyright
Copyright © Cambridge University Press 1977

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References

Allard, R. W. (1970). Population structure and sampling method. In Genetic Resources in Plants – Their Exploration and Conservation (ed. Frankel, O. H. and Bennet, E.), pp. 97–107. Oxford & Edinburgh: Blackwell Scientific Publications.Google Scholar
Bassibi, A. & Rouhani, I. (1976). Effect of seed treatment on germination of wild safflower. Weed Science 24, 233–5.CrossRefGoogle Scholar
Bassiri, A., Rouhani, I. & Ghorashy, S. R. (1975). Effect of temperature and scarification on germination and emergence of wild safflower, Carthamus oxyacantha Bieb. Journal of Agricultural Science, Cambridge 84, 239–43.CrossRefGoogle Scholar
Deshpande, R. B. (1952). Wild safflower (Carthamus oxyacantha Bieb.) – A possible oil seed crop for the desert and arid regions. Indian Journal of Genetics and Plant Breeding 12, 10–14.Google Scholar
Flowers, T. J. (1972). Salt tolerance in Suaeda maritima (L.) Dun. The effect of sodium chloride on growth, respiration, and soluble enzymes in a comparative study with Pisum sativum L. Journal of Experimental Botany 23, 310–21.CrossRefGoogle Scholar
Francois, L. E. & Bernstein, L. (1964). Salt tolerance of safflower. Agronomy Journal 56, 38–40.CrossRefGoogle Scholar
Ghorashy, S. R., Sionit, N. & Kheradnam, M. (1972). Salt tolerance of safflower varieties (Carthamus tinctorius L.) during germination. Agronomy Journal 64, 256–7.CrossRefGoogle Scholar
Greenway, H. (1962). Plant response to saline substrates. I. Growth and ion uptake of several varieties of Hordeum during and after chloride treatment. Australian Journal of Biological Science 15, 16–38.CrossRefGoogle Scholar
Jackson, W. T. (1965). Mannitol-induced stimulation of elongation of root hairs of Agrostis alba L. Physiologia Plantarum, 18, 24–30.CrossRefGoogle Scholar
Kaul, R. (1966). Relative growth rates of spring wheat, oats and barley under polyethylene glycolinduced water stress. Canadian Journal of Plant Science 46, 611–17.CrossRefGoogle Scholar
Lagerwerff, J. V., Ogate, G. & Eagle, H. E. (1961). Control of osmotic pressure of culture solutions with polyethylene glycol. Science 133, 1486–7.CrossRefGoogle ScholarPubMed
McGinnies, W. J. (1960). Effect of moisture stress and temperature on germination of six range grasses. Agronomy Journal 52, 159–62.CrossRefGoogle Scholar
Nieman, R. H. (1962). Some effects of sodium chloride on growth, photosynthesis and respiration of twelve crop plants. Botanical Gazette 123, 279–85.CrossRefGoogle Scholar
Parmar, M. T. & Moore, R. P. (1968). Carbowax 6000, mannitol, and sodium chloride for simulating drought conditions in germination studies of corn (Zea mays L.) of strong and weak vigor. Agronomy Journal 60, 192–5.CrossRefGoogle Scholar
Sionit, N., Kheradnam, M. & Ghorashy, S. R. (1973). Effect of different osmotic potentials of media on. germination of three safflower varieties. Physiologia Plantarum 29, 272–3.CrossRefGoogle Scholar
Wiggans, S. C. & Gardener, E. P. (1959). Effectiveness of various solutions for simulating drought conditions as measured by germination and seedling growth. Agronomy Journal 51, 315–18.CrossRefGoogle Scholar