Evaluation Effect of KNO3 Seed Priming on Seedling Growth and Cell Membrane Damage of Sunflower (Heliantus annuus) under Salt Stress

摘要

This study was carried out in order to evaluation effect of seed priming on seed germination and seedling growth of sunflower (Heliantus annuus var. Azargol) in Islamic Azad University, shoushtar Branch, Iran, in 2011. The experimental design was two factors factorial (3?á4) arranged in a completely randomized design; with six replications. The first factor was salt treatments (0, 40 and 80 mmol NaCl solution) and the second factor was seed priming (0, 0.3, 0.6 and 0.9 MPa KNO solution). Results showed sunflower GP, seedling 3 fresh weight and seedling growth decreas under salinity condition but MGT and MDA concentration was increased. Results showed under saline condition seed priming with KNO improved sunflower seed 3 germination, POX activity and seedling growth compared non priming seeds.