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2012 (Vol. 4, Issue: 21)
Article Information:

Effects of Salt and Drought Stresses on Germination and Seedling Growth of Swallow Wort (Cynanchum acutum L.)

Farid Golzardi, Saeed Vazan, Hossien Moosavinia and Ghasem Tohidloo
Corresponding Author:  Farid Golzardi 

Key words:  Hypocotyle length , NaCl, osmotic potential, PEG, radical, ,
Vol. 4 , (21): 4524-4529
Submitted Accepted Published
May 15, 2012 June 08, 2012 November 01, 2012
Abstract:

In order to study the effects of drought and salinity stresses on germination indices in swallow wort (Cynanchum acutum L.), an experiment was conducted as factorial form, using a completely randomized design arrangement, with four replications. In this study, 6 levels of PEG 6000 including 0 (distilled water), -0.2, -0.4, -0.6, -0.8 and -1 MPa and 6 levels of NaCl consisting 0, 100, 200, 300, 400 and 500 mM were applied in 2011. Results indicated significant differences among the treatments (p<0.01) in all the traits. Control treatment was better for radicle and hypocotyle length as well as seedling fresh weight and seed germination than the other treatments considerably. Results showed that the drought and salinity stresses effect essence on germination and early seedling growth was different. Osmotic potential up to -0.6 Mpa and salinity stress up to 300 mM had little effect on seed germination. Seed germination was less than 13% at -1 Mpa osmotic potential and less than 9% at 500 mM salinity.
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  Cite this Reference:
Farid Golzardi, Saeed Vazan, Hossien Moosavinia and Ghasem Tohidloo, 2012. Effects of Salt and Drought Stresses on Germination and Seedling Growth of Swallow Wort (Cynanchum acutum L.).  Research Journal of Applied Sciences, Engineering and Technology, 4(21): 4524-4529.
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ISSN (Online):  2040-7467
ISSN (Print):   2040-7459
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