Journal of Stress Physiology &
Biochemistry, Vol. 9 No. 4
2013, pp. 310-318 ISSN 1997-0838
Original Text Copyright (cc) 2013 by Azadi, Younesi, Tabatabaei
ORIGINAL ARTICLE
Data source : Google Scholar
QueryDate : 2016-12-24
Cites : 0
Seed Germination, Seedling
Growth and Enzyme Activity of Wheat Seed Primed under Drought and
Different Temperature Conditions
Azadi M.S.1, Younesi E.2*.
Tabatabaei S. A.3
1 Department of Agronomy and
Plant Breeding, Islamic Azad University, Dezfoul Branch, Iran. 2 Department of Agronomy and Plant Breeding, Faculty of
Agriculture, University of Tehran, Karaj, Iran. 3 Agricultural and natural resources research center of
Yazd, Iran
*E-Mail: younesiehsan@ut.ac.ir
Received July 23, 2013
The study aimed was to determine
the effects of drought stress (0, -4, -8, -12 bar) and osmopriming (-15
bar PEG 6000 for 15 at 24 h) on seed germination, seedling growth and
enzyme activity at different temperatures were assessed
in the laboratory for wheat. Results
showed that the highest germination
percentage (GP) (94.33%), normal seedling
percentage (NSP) (92%), germination index (GI) (44.85) and
seedling length (11.03 cm) were attained from osmo-priming in
control conditions. Therefore, seed
priming with PEG 6000 significantly
(p≤ 0.01) increased germination characteristics as compared
to the unprimed seeds under drought stress. Also, osmopriming increased
catalase (CAT) and ascorbate peroxidase (APX) as compared to the
unprimed.
