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Abstract
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Article Information:
Effects of Salt and Drought Stresses on Germination and Seedling Growth of Bindweed (Convolvulus arvensis L.)
Khodadad Mostafavi and Farid Golzardi
Corresponding Author: Khodadad Mostafavi
Submitted: February 22, 2012
Accepted: March 12, 2012
Published: November 01, 2012 |
Abstract:
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One of the first and most important plant life stages is seed germination. In order that, growth and
yield performance is related to this stage. In order to study the effects of drought and salinity stresses on
germination indices in Bindweed (Convolvulus arvensis L.), an experiment was conducted as factorial form,
using a completely randomized design arrangement, with four replications. In this study, five levels of PEG
6000 including 0 (distilled water), -3, -6, -9 and -12 bar and four levels of NaCl consisting 8, 16 and 24 ds/m
were applied in Biotechnology Laboratory, Islamic Azad University-Karaj Branch, Iran in 2011. Results
indicated significant differences among the treatments (p<0.01) in all the traits. Control treatment was better
for radicle, plumule and seedling length as well as seedling fresh weight and seed vigor than the other
treatments considerably. Orthogonal comparisons showed that the drought and salinity stresses effect essence
on germination and early seedling growth was different. Based on three parameter logistic model fitted for
drought and salinity stresses, seed germination threshold level of bindweed was 23 ds/m for salinity and -16
bar for drought stresses.
Key words: Convolvulus arvensis , logistic model, NaCl, orthogonal comparisons, PEG, ,
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Abstract
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Cite this Reference:
Khodadad Mostafavi and Farid Golzardi, . Effects of Salt and Drought Stresses on Germination and Seedling Growth of Bindweed (Convolvulus arvensis L.). Research Journal of Applied Sciences, Engineering and Technology, (21): 4305-4313.
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ISSN (Online): 2040-7467
ISSN (Print): 2040-7459 |
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