Mutagenic Effect of Sodium Azide on Seed Germination of Eruca sativa (L

Abs tract: Eruca sa t i v a is a very important crop of M adeterranean region, and highly us ed as s alad 3 in European countries. Sodium azide (NaN ) is a chemic a l mutagen, and widely us ed in crops to 3 improve their yield and quality traits. W e studied the effect of various concentrations of NaN ranged (1mM , 2mM , 3 mM , 4 mM and 5 mM ) on germination and seedling growth of Eruca at various time 3 intervals . The seeds treated at 5 mM of NaN , the percent germination profoundly affe c t e d o n d a ys 9 and 12 following its application for 120 min and 180 min of time intervals . The h ig h e s t and lowest % germin a t io n was found for 30 min and 180 min of time intervals, whilst seeds were treated at same 3 3 concentration of NaN . The radicle and coleoptile length were decreased as the concentration of NaN increas ed, and highly affected at concentratio n s 3 mM, 4 mM and 5 mM res pectively. M ore variation was found on radicle length than that of coleoptile leng t h a t s a me c o n centrations and at same time intervals