Background Previous reports showed that immobilization stress (IMS) results in severe damages at spermatogenesis level. Present study was performed in order to evaluate the protective effect of selenium-enriched yeast fragments on IMS-induced derangements. MaterialsAndMethods For this purpose, 42 mature male Wister rats were assigned into 6 groups (7 rats in each group) including; control, stre...

to study the effects of nitrogen on tomato plant growth and the possibility of reducing nitrogen in drainage water, two nutrient solutions (complete nutrient solution (n+) and nutrient solution with a 30% decrease in n concentration (n-)) along with and three culture media (perlite, a mixture of perlite and nh4- enriched zeolite and finally a mixture of perlite and raw zeolite) were employed fo...