Impact of foliar applied rutin on some physiological and yield parameters of lettuce under different saline irrigation water stress

Özet

Salinity is one of the greatest threats to global food security and is recognized as the largest source of abiotic stress in agricultural production. Rutin is a natural flavonoid found in advanced plants and has a stimulatory effect on the defense mechanism against abiotic and biotic stresses. In this study, a pot experiment was conducted in a climate chamber to determine the effect of rutin flavonoid in lettuce plants under salinity stress. In the study, 4 saline water doses (Sw0.6: 0.60 dS m⁻¹, control; Sw1.2: 1.2 dS m⁻¹; Sw2.4: 2.4 dS m⁻¹; Sw3.6: 3.6 dS m⁻¹) and control (Non-rutin) and 1 mmol L^-1 rutin treatment (Rutin) were applied. Leaf dry matter content, electrolyte leakage and leaf relative water content were analyzed. As a result of the study, it was determined that increasing saline irrigation stress significantly decreased dry matter and leaf relative water content and increased leaf electrolyte leakage. On the contrary, rutin application alleviated the stress by significantly reducing electrolyte leakage. Based on the results of the study, it is concluded that rutin application can be used as a stress mitigant for sustainable commercial cultivation of lettuce.