Reaction of yield and yield components of cotton to Glycine and Potassium appliedin salt stress conditions

One of the reducing methods of salt stress damage effects is useing substances that increase seed germination and plantlet establishment in salt stress conditions. In this research potassium and glycine effects were evaluated by randomized complete block design with four replications at Agriculture and Natural Resource Research Stations of Kashmar and Feizabad in none salt and salt conditions during 2015 and 2016. Treatments were such as: 1-Control (spray with water) 2- Folar application (FA) of potassium 1% at 50 percent of flowering and boll set stages (50% of F&B) 3-(FA) of glycine (100Mm) at (50% of F&B) 4- Seed priming with glycine 1% (SPG) 5- (FA) of potassium 1% and glycine 100Mm 6-(SPG) and (FA) of potassium 1% 7- (SPG) and (FA) of glycine and 8- (SPG)+ (FA) of potassium and glycine. Results showed Seed priming and foliar application of potassium and glycine significantly increased number of plant per area unit at salt stress conditions. Results also showed experimental treatments increased leaf relative water content and significantly reduced shedding of flower and boll per plant in comparison with control. Consequently, boll number per plant and seed cotton yield were significantly increased following foliar application of potassium and glycine. Therefore, seed priming with glycine and foliar application of glycine and potassium at 100 mM and 1% respectively increase plant growth and seed cotton yield under salt stress conditions.