The Effect of Accelerated Aging on Germination Characteristics, Seed Reserve Utilization and Malondialdehyde Content of Two Wheat Cultivars

• Main Authors: Maryam Goodarzian Ghahfarokhi, Elahe Ghasemi, Mohsen Saeidi, Zeinab Heidari Kazafi
• Format: Article
• Language: English
• Published: "Vikol publishing" ST Kolesnichenko V.V. 2014-05-01
• Series: Journal of Stress Physiology & Biochemistry
• Subjects: Malondialdehyde content; Electrical conductivity; Accelerated ageing; Wheat; Germination characteristics
• Online Access: http://www.jspb.ru/issues/2014/N2/JSPB_2014_2_15-23.pdf

In this study experiment was conducted to evaluated the effect of accelerated aging on germination characteristics, seed reserve utilization and malondialdehyde of two wheat cultivars. The experiment was conducted in factorial with a randomized complete block design with 3 replications. Results of variance analysis showed that, seed aging had significant effects on germination percentage, germination index, normal seedling percentage, mean time to germination, malondialdehyde content, seedling dry weight, weight of utilized (mobilized) seed reserve and electrical conductivity. The highest germination percentage, germination index, normal seedling percentage, seedling dry weight and weight of utilized (mobilized) seed reserve and the minimum mean time to germination, electrical conductivity and malondialdehyde content were attained from Verinak cultivar under control conditions (0 day aging). Results indicates that germination percentage, germination index, normal seedling percentage, seedling dry weight, and weight of utilized (mobilized) seed reserve decreased significantly as seed aging progressed. But, mean time to germination, electrical conductivity and malondialdehyde content increased significantly as seed aging progressed. Also, the decrease in seed reserve mobilization rate was the cause of decreased other traits.