Evaluation of NaCl Salinity Stress Using Three Different Laboratory Methods

پژوهشهای زراعی ایران

Article 3, Volume 9, Issue 1 - Serial Number 21, April 2011, Pages 19-27   

Document Type: Research Article

DOI: 10.22067/gsc.v9i1.10491

Authors

S Laleh^* ; M Jami Al-Ahmadi; Z Sharefee; S. V Eslami

University of Birjand

Abstract

To investigate the effects of different salinity levels of NaCl on germination of safflower (cv. Esfahan 24) seeds under three different incubation methods, a factorial experiment was carried out based on a complete randomize design with three replications. Salinity levels were 0, 5, 10, 15 and 20 dSm-1 (NaCl) and incubation methods were sandwich method, and using petri dishes with open or closed doors. The results showed that among investigated traits, including germination percentage and rate, length, fresh and dry weight of root and shoot, salinity had the highest negative correlation with germination percentage. There was not a significant difference in germination percentage between 5 dSm-1 and control, but increasing salinity levels to 10, 15 and 20 dSm-1 led to 13, 23.50 and 39.74 % reduction in germination percentage, respectively, compared to control (P