Oxygen abundances in F and G dwarfs derived from the [OI] line at 6300 Å

High resolution, high S/N spectra at 6300 A have been obtained for 23 F and G main sequence stars ranging in metallicity, [Fe/H], from −0.8 to +0.3. From these spectra the equivalent width of the faint, forbidden [0I] line at 6300.3 A has been measured to an accuracy of about ±0.6 mA. The data has been analyzed using line blanketed, flux constant, model atmospheres with fundamental parameters determined from Stromgren photometry. The errors in the derived [O/Fe] values are found to be about 0.05 dex, when the iron abundances are determined from FeII lines