The Study the Effects of NaCl on Some physiological Traits and chemical Composition of Dill (Anethum graveolens L.)

A pot experiment was conducted for the study of the effects of NaCl on theaccumulation of some mineral and organic matter in Dill (Anethum graveolens L.).A completely randomized design was arranged with five salinity levels (0 25 50 75 and 100 mM. NaCl) and four replications. Seed culturing was done in greenhouse and Plants irrigation with the help of Hoagland nutrition solution. Total dry weight stem and root length total leaf chlorophyll total soluble sugar and Na+ K+ and Clwere measured at the final leaf growth stage. Results showed that total chlorophyll dry weight K+ in leaves stem and root length significantly decreased with increasing salinity levels while total soluble sugar increased. In addition the significant increase of Na+ and Cl- accumulation in the leaves Particularly at high Salinity levels lead to nutrient deficiency and ionic toxicity.