Effect of ST Bacterial Strains (ST4, ST5, ST6, ST15, ST16, ST17, ST18, ST20,ST22, ST25) on a) Chlorophyll Content Index (CCI), b) Leaf Water Potential (LWP), c) Relative Water Content (RWC), d) Leaf Area (LA), e) Na+ Content, f) K+ content, g) Relative Electrolyte Leakage (REL), h) Proline content under both stressed and unstressed natural condition in cotton plants. Values are mean of 03 values ± Standard Deviation. Bars with different letters show significant differences at P ≤ 0.05.