The objective of this study was to investigate to what extent salinity affects the botanical growth and its relation with some other cotton characters of three Egyptian cotton cultivars namely Giza 77, Giza 75 and Giza 80. The salinity levels were 0, 2000, 4000 and 6000 ppm of either NaCl, NaCl + NaCl₂ or NaCl + KCl. Germination speed and capacity were lower as the concentration of various were salts got higher. Salinity reduced plant height and the number of internodes of the main stem. Salinity reduced lint cotton yield by up to 50%, specific weight of seeds by up to 18%, fiber maturity ratio by up to 8.9%, ovule width by up to 35% and fiber ribbon width by up to 4.9% where 6000 ppm of NaCl alone was applied. The effects of NaCl were greater than the effects of NaCl + CaCl₂ or NaCl + KCl. The relationship between fiber maturity as well as ovule width at 2 days post anthesis with some other characters are compute