This study was conducted as a pot experiment potassium fertilizer different doses effects were investigated plant growth and membrane permeability on chickpea plants in dry conditions. The experiment was designed as a randomized block design with 3 replications. The 18 pots were composed of two different textures as 1:1 peat+soil and only soil in the experiment. Three different doses of potassium fertilizer (Control: 0ppm K, 100ppm K, 200ppm K) were given with seed sowing. The chickpea plants were harvested at the end of 8 weeks and results were evaluated. Plant dry matter yield was found between 19.60g/pot and 52.25g/pot. As applied potassium fertilizer dose has decreased plant root and leaf dry matter yield has also decreased when potassium doses increased these values have increased. Peat+soil mixture texture has supported plant growth. The effect of potassium fertilizer on plant growth and membrane permeability was found statistically significant (p<0.05). Membrane permeability values were decreased as the amount of applied potassium doses increased. The highest membrane permeability was obtained from 0ppm K and only soil texture group with 48.4%. In this application, the cell membrane has been damaged at the highest level. The lowest membrane permeability value was obtained from 100ppm K and peat+soil mixture texture with 18.6%. As a result of this study, it was determined that organic matter contains texture supported plant growth and K fertilizer especially protected chickpea plant from water stress under dry conditions.