Evaluation of Oxygen Deficit Stress on Germination Indicators and Seedling

پژوهشهای زراعی ایران

Article 6, Volume 9, Issue 4 - Serial Number 24, January 2012, Pages 631-638   

Document Type: Research Article

DOI: 10.22067/gsc.v9i4.13242

Authors

F Hoseini^* ; S. A Siadat; A Bakhshandeh; A Chaab

Abstract

To investigate the relationship oxygen deficit stress on germination indicators and seedling growth of five
wheat cultivars in laboratory condition, an experiment with Randomized Complete Block design in factorial
arrangement with three replications was conducted in 2008. The treatments consisted of five wheat cultivars
(Chamran, Flat, Roshan, Stare and Shole) as A factor, and two oxygen level (normal seed and seed under oxygen
deficit stress conditions) as B factor in each of these figures was done. Results showed that oxygen deficit stress
caused to decrease for various cultivars germination percentage, germination rate, allometric coefficient, seed
vigor index and other germination indicators. Therefore, this test as a suitable method for determining the quality
of various seed lot can be used in the water logging condition. In addition, among different cultivars
characterized that Roshan cultivar was more resistant to oxygen deficit stress than Chamran, Flat and Star
cultivars. Although Chamran cultivar is common cultivar in Khouzestan, but of look most germination indicators
arranged as weak seed class. The highest correlation coefficients among the tested cultivars have been related to
seed vigor with seedling length and dry weight of radicle with seedling with 0.92 and 0.90, respectively.

Keywords

Seed vigor; oxygen deficit stress; Germination rate; germination percentage and wheat