Effect of Gamma Irradiation and Potassium Humate on Red Clover (Trifolum Pratense L.) Seedlings Exposed to Salt Stress

The study investigated the effects of potassium humate solutions and low doses of radiation on the development of red clover (Trifolium pratense L.) seedlings under conditions of salt stress. Over a two-year period, the combined effects of potassium humate solutions at concentrations of 0.1%, 0.01%, and 0.001% were examined, along with irradiation dosages of 10 Gy and 50 Gy, in relation to photosynthetic pigments, photosynthetic activity, biometric parameters, and seedling productivity. The results indicated that treating clover seeds with potassium humate and irradiating them at a dose of 10 Gy prior to sowing had a positive influence on seedling development, increased photosynthetic pigment content, and enhanced the maximum quantum yield under salt stress conditions. The most significant stimulatory effect was observed at a concentration of 0.1% potassium humate combined with 10 Gy irradiation.