Effects of Salt and Potassium on K+/Na+ Ratio in Eggplant(Solanum melongena L) Plants

Abstract

Using a Hoahland nutrient solution, after applying NaCl salt stress of 150 mM to the eggplant plants grown in hydroponic culture, the potassium (K+) ratios of the solution were applied at 106, 136, 166 and 196 ppm. The study was carried out in 16/8 hour light / dark photoperiod, 25 0C and 70% humid climate room in controlled conditions. After germinating the seeds planted in the pumice, the seedlings formed in 2 real leaves were cultured in hydroponics. Sampling for measurements and analyzes was done on the 15th day of salt application. In these samples, total plant weight and root, body and leaves K+ / Na+ intake rates were examined. The results showed that K+ / Na+ ratios increased as K+ applications increased, but increased K+ uptake from roots.

Key Words: Eggplant, Salt stress, K / Na ratio, Total plant weight