اعلانات هامة

This study was conducted at the center research of AL-furat university, in Deir Ezzor, during 2011 growing season to study the effect of soil salinity on yield and yield components of some soy bean varieties. The experiment designed as split-plots with three replications. Where varieties (SB330, SB323, SB239 and SB44) assigned to the main plots, while salinity soil levels (1.3 , 3.1 and 6.2 ds m-l) were assigned to the sub-plots. Results showed significant decrease in percentage of oil and proteins ,leaf proline &TSS content increased with increasing salinity ,salinity had no significant effect on the percentage of fibers with increasing salinity from 1.3 to 6.2 dsm-7. The variety SB330 surpassed other varieties in all these traits, followed by SB44 variety. All varieties affected with increasing salinity, the highest values of all these traits were obtained by planting the variety SB330 in salinity level (1.3)dsm Showever the lowest values were obtained when SB323 variety was planted at 6.2 dsm salinity level.

Key words: salt stress, soybean, proline