The Effect of Salicylic Acid and Gibberellin on Seed Reserve Utilization, Germination and Enzyme Activity of Sorghum (Sorghum bicolor L.) Seeds Under Drought Stress

Sheykhbaglou,Roghayyeh; Rahimzadeh, Saeede; Ansari, Omid; Sedghi, Mohammad

Journal of Stress Physiology & Biochemistry, Vol. 10 No. 1 2014, pp. 5-13 ISSN 1997-0838
Original Text Copyright (cc) 2014 by Sheykhbaglou, Rahimzadeh, Ansari, Sedghi

ORIGINAL ARTICLE

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QueryDate : 2016-12-24
Cites : 4

The Effect of Salicylic Acid and Gibberellin on Seed Reserve Utilization, Germination and Enzyme Activity of Sorghum (Sorghum bicolor L.) Seeds Under Drought Stress

Roghayyeh Sheykhbaglou ¹*, Saeede Rahimzadeh ², Omid Ansari ³*, Mohammad Sedghi ⁴

¹ Faculty of Agricultural Sciences, University of Mohaghegh Ardabili. Ardabil, Iran.
² Department of Agronomy and Plant Breeding, Faculty of Agriculture, University of Kurdistan, Kurdistan, Iran
³ Department of Agronomy and Plant Breeding, Faculty of Agriculture, University of Tehran, Karaj, Iran.
⁴ Department of Agronomy and Plant Breeding, Faculty of Agricultural Sciences, University of Mohaghegh Ardabili. Ardabil, Iran.

*E-Mail: Ansari_o@ut.ac.ir, gh_sheikhbaglu@yahoo.com

Received July 27, 2013

Seed priming methods have been used to increases germination characteristics under stress conditions. The study aimed was to determine the effect of salicylic acid and gibberellin on seed reserve utilization, germination and enzyme activity of sorghum (Sorghum bicolor L.) seeds under drought stress. Factorial experiment was carried out in completely randomized design with three replications. The first factor was the seed treatments (unpriming, salicylic acid and gibberellin) and the second factor was drought stress (0, -4, -8 and -12 bar). The results indicated that for these traits: germination percentage, germination index, weight of utilized (mobilized) seed, seed reserve utilization efficiency, seedling dry weight and seed reserve depletion percentage was a significant treatment × drought interaction. Thus priming improved study traits in Sorghum (Sorghum bicolor L.) seeds under drought stress. Also, priming improves enzyme activity as compared to the unprimed seeds.

Key words: Stress, Sorghum (Sorghum bicolor L.), Seed reserve utilization, Priming