Volume 6, Issue 21 (1-2016)                   NCMBJ 2016, 6(21): 41-48 | Back to browse issues page

XML Persian Abstract Print


Download citation:
BibTeX | RIS | EndNote | Medlars | ProCite | Reference Manager | RefWorks
Send citation to:

Safari Saatloo M, Nejatzadeh F, Taghavi Tabat R. Effect of seed priming on germination and seedling growth of Barli 21 tobacco varieties under PEG and salinity stress conditions. NCMBJ 2016; 6 (21) :41-48
URL: http://ncmbjpiau.ir/article-1-762-en.html
Faculty of Agriculture, Islamic Azad University of Khoy , fnejatzadeh@yahoo.com
Abstract:   (8380 Views)

Aim & Background: In order to evaluate the effect of priming on seed germination Burley 21 tobacco varieties, a research was conducted in the autumn of 1392 in Urmia Tobacco Research Center.

Material and methods: In the first part, a completely randomized design with 26 treatments and 3 replications were conducted. Treatments were one control and 4 levels of polyethylene glycol (0.5, 1, 1.5 and 2%) at different periods of 1, 2, 3, 5 and 10 days, and water (priming) at different periods of 1, 2, 3, 5 and 10 days. In the second part, a factorial completely randomized design was conducted with 3 factors and 3 replications for the first factor, the concentrations of -0.5, -1, -1/5 and-2 MPa polyethylene glycol and distilled water, and for the second factor they were 1, 2, 3, 5 and 10 days priming and salinity; for the third factor were 1, 2, 3 and 4 dS m for per was petri dish.

Results: In the first part of experiment, the treatments on time and germination percentage at 1% level had a significant effect. The mean time of germination using tobacco seed priming with polyethylene glycol and distilled water significantly decreased. Germination in the priming effect for 3, 5 and 10 days significantly was reduced. In the second part of the experiment, seed priming had significant effect on germination time, germination rate, germination index, germination rate and germination percentage at 1 % level, time duration of seed priming on germination time, germination rate had significant effect at 1% level. Germination time in petri dish significantly increased with increasing salinity; while the germination rate and speed germination index declined. In conclusion, priming tobacco, resulting in improved germination rate, rate of germination and speed germination. The best priming time was 1 and 1.5 % polyethylene glycol and the duration of a day.

Conclusions: Considering the importance of tobacco seed germination rate, it is required to use concentrations of 1 or 1.5% of polyethylene glycol to be treated one day before.

Full-Text [PDF 493 kb]   (3176 Downloads)    
Type of Study: Research Article | Subject: Botany
Received: 2016/01/19 | Accepted: 2016/01/19 | Published: 2016/01/19

Add your comments about this article : Your username or Email:
CAPTCHA

Send email to the article author


Rights and permissions
Creative Commons License This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.

© 2024 CC BY-NC 4.0 | New Cellular and Molecular Biotechnology Journal

Designed & Developed by : Yektaweb