Effects Of Priming On Seed Germination Of Panicum Coloratum L. Under Saline Stress Conditions

In the present study we evaluated the effects of osmotic conditioning priming on seed germination and emergence rate index ERI of Panicum coloratum cv Klein Green under optimal germination conditions watered with distilled water and salt stress irrigated with different water potentials of NaCl solution. The seeds were primed in 3 osmotic solutions NaCl KCl and K2SO4 during 2 days at 15C. After the treatments the seed was germinated in 3 levels of salinityosmotic potential media 12 26956scm-1-05 MPa 30 26956scm-1-10 MPa 43 26956scm-1-15 MPa. Salt stress conditions generate a depressive effect on the speed and germination percentage of Panicum coloratum seeds. Priming treatments increase significantly the germination percentage and ERI in prime seeds compared to untreated in non saline condition. At 12 26956scm-1-05 MPa salinity levels the primed seeds showed higher significantly germination velocity ERI compared with non primed seeds.