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Abstract
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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
Submitted: May 15, 2012
Accepted: June 08, 2012
Published: November 01, 2012 |
Abstract:
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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.
Key words: Hypocotyle length , NaCl, osmotic potential, PEG, radical, ,
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Abstract
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Cite this Reference:
Farid Golzardi, Saeed Vazan, Hossien Moosavinia and Ghasem Tohidloo, . 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, (21): 4524-4529.
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ISSN (Online): 2040-7467
ISSN (Print): 2040-7459 |
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