Evaluation of Drought Tolerance in Cold Hardy Lentils (Lens culinaris medik.) at Germination Stage

پژوهشهای زراعی ایران

Article 17, Volume 8, Issue 1 - Serial Number 15, March and April 2010, Pages 138-146   

Document Type: Research Article

DOI: 10.22067/gsc.v8i1.7404

Authors

A Nezami^{* 1}; N. Khamadi²; M Khajeh Hosseini²; A Bagheri²

¹Faculty of Agriculture, Ferdowsi University of Mashhad

²Ferdowsi University of Mashhad

Abstract

Abstract
Germination and emergence of cold tolerant lentil genotypes sometimes experiences low temperatures and variable rainfalls in the fall planting. This study was conducted to evaluate the effects of drought stress on germination stage of lentil genotypes. Experiment was carried out with 18 lentil genotypes under five levels of water potential (0 , -0.4 , -0.8 , -1.2 , -1.6 MPa) using PEG solutions with a 5×18 factorial experiment based on a compeletly randomaized design with three replications of 25 seeds at 13˚C. Germination and normal seedling percentage, germination rate, radicle and plumule length were measured. Germination averaged over genotypes was 88% at 0 MPa whereas it was 18% at -1.6 MPa. MLC20, with 79%, MLC138 and MLC25 with 74% showed the highest germination, whereas MLC245 and MLC7 with 45% and 47% percent had the lowest germination percentage, respectively. The effects of water potentials × genotypes on all traits were significantly different (p