Hybrid and native sesame seeds subjected to salinity

Sesame is a plant with great economic and social potential, being used for various purposes such as the food, pharmaceutical, medicinal industries, more recently, source of renewable energy production biofuel. One factors that most limit productivity this crop salt stress. Based on this, present work aimed to evaluate germination vigor hybrid creoles sesame seeds subjected saline The experiment was carried out at Phytotechnics Laboratory Engineering Agricultural Sciences Campus/UFAL. Two cultivars were studied, BRS Anahí Creole from state Sergipe. aseptically treated by immersion in 70% alcohol 1 minute, followed washing running water before treatments. To simulate stress, sodium chloride (NaCl) solute concentrations 0.0 (control); -0.1; -0.2; -0.3; -0.4 -0.5 MPa. material placed, Biochemical Oxygen Demand (B.O.D.) type chamber, regulated an alternate temperature 20-30 °C. experimental design completely randomized, four replications 25 per treatments 2 x 6 factorial scheme (sesame concentrations). Data submitted analysis variance polynomial regression, analyzes performed using SISVAR 5.6 software. parameters evaluated were: content, germination, first count, speed index, seedling length dry mass. results stress showed salinity levels increased there reduction percentage but until concentration MPa they are within standards allowed commercialization culture. In count Creoles highest values, demonstrating better performance compared Anahí. outperformed all concentrations, except control. For length, it found lowest both varieties obtained averages, significant (-0.5). mass seedlings decreased increased, evident after -0.3 NaCl solution, especially Thus, can be concluded affects physiological potential seeds, when less sensitive