Germination Response of Five Rice Varieties Treated with Sodium Azide

Sodium azide poisoning in five laboratory technicians.

Five laboratory technicians accidentally ingested sodium azide, in quantities varying from 20 to 80 mg, in tea made from distilled water kept in a laboratory. Four had short-lived symptoms of dizziness, pounding heart, and faintness, while another developed a picture of myocardial ischaemia. He had further episodes of chest pains necessitating admission to hospital. These later symptoms were th...

Response of Two Indica Rice Varieties to Salt Stress

  Salinity is one of the most challenging problems that adversely affects growth and development of plants. Therefore, understanding of the mechanisms that enable plants to adapt to salinity stress will ultimately help in the selection of stress tolerant cultivars for exploiting saline soils. The main objective of this study was to examine the effects of NaCl on some physiological and biochemic...

Reaction of Sodium Azide with 1,1'–Dicyclohexenyl–Diepoxides

Nucleophilic ring opening of dl and meso 1,1¢- dicyclohexenyl diepoxides by sodium azide in dioxane and aqueous alcoholic medium give the corresponding azidoalcohols. The obtention of departure diepoxides from diazidoalcohols by the reaction with sodium hydride shows the anti position of OH and N3 groups.

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

Eruca sa t i v a is a very important crop of Madeterranean region, and highly used as salad 3 in European countries . Sodium azide (NaN ) is a chemic a l mutagen, and widely used in crops to 3 improve their yield and quality traits . W e s tudied 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 int...

Salt tolerance of sunflower varieties during germination