The seeds of medicianl pumpkin (Cucurbita pepo convar. pepo var. styriaca ) contain fatty oil,  - sitosterol and E-vitamin as active substances that are used to cure the prostatic hypertrophy and urinary tract irritation. The main purpose of this study was to determine the effect of increasing salinity on leaf proline and chlorophylls (a, b and total chlorophyll) content and oil seeds content of medicinal pumpkin . The salt treatments (0, 2.5, 5 and 10 g/l NaCl) were applied at pre - emergence (on seed sowing) and post - emergence from four leaf stage and was maintained every 8 days until the fruit set stage. The leaf proline content was highest in 10 g/l of NaCl. As it was 79.48 μg/l . The highest of the a, b and total chlorophylls accumulated on plants that received 2.5g/l NaCl in 1998 and 1999. The oil seeds content was higher when salt applied pre-emergence at 2.5 g/l NaCl than other treatmetns.

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