Abstract
The study included the effect of the growth regulators on salinity tolerance for three varieties of Rice cultivated in saline soils at the salinity levels of 1,79, 7,2 and 8,66 ds/m, The results indicated that salinity caused a decrease or reduction in all studied traits, in which growth regulators were used , and such treatment caused an increase in plant height , dry weight of vegetative growth , number of tillers and seed yield compared with those of the control, while treatment with IAA gave a higher number of Panicles compared to other treatments .
The variety Kasendeti gave significantly higher plant height ,dry weight of vegetative growth and number of tillers when compared to those of Rouetic and Makloob respectively. The variety Kasendeti also gave a higher seed yield and number of Panicles comparing to that of Makloob and Rouetic respectively .