Enhancing salinity tolerance in tomatoes at the reproductive stage by increasing pollen viability

This study was conducted to mitigate the adverse effects of sodium chloride stress on reproductive parameters tomatoes. experiment in greenhouse laboratory tropical horticultural science, department International agricultural development, Tokyo University Agriculture. The design a factorial CRD (completely randomized design) with five (0 mM, 50 100 150 and 200 mM) treatments four primings MPa, 0.4 0.8 1.2 MPa) treatments. Micro-Tom seeds were soaked polyethylene glycol (PEG6000). Salinity applied through irrigation water when first flower bloomed. Reproductive-related such as number flowers per plant, pollen viability, germination, tube length, fruits size yield plant measured. It observed that salinity affected tomato plants severely during flowering stage, many did not bear fruit due decrease viability. In addition, electrolyte leakage increased under salt stress, while priming decreased this parameter. Priming improved flowers, plant. best MPa for promoting enhancing tolerance stage. Keywords: physiology, priming, salinity.