fertilizers usually enhance potassium (k) content and other naturally occurring radioactive materials in agricultural fields that eventually enter the human food chain through plants. in this study, pot-grown rice plants planted in soil that is relatively high in natural radioactive content was used to estimate the individual influence of fertilizer applications on the uptake of 226ra, 232th, a...

the objective of deficit irrigation is to increase water use efficiency by reducing of water quantity or wave off further irrigations that have not necessary. cotton plant is sensitive to irrigation timing and quantity through different growth stages. the field trail was conducted at hashemabad cotton research station (gorgan) to determine water consumption and cotton sensitivity to deficit irr...

topping stage of tobacco is a key time for development of agriculture measures to promote the quality of leaves. in order to investigating influence of topping timing and suckericide content on tobacco leaf, a factorial experiment on the basis of rcb design with 3 replications was conducted in 2011 at the tobacco research farm of isfahan. treatments were including topping time (t1: topping at e...

salt tolerance in crops is multigenic in nature and quantitatively inherited, and therefore controlled by minorgenes. to study the diversity of qtls conferring salt tolerance in barley, four barley mapping populations including l94 × vada (l × v, 103 rils), oregon wolf barley (owb) (dom × rec, 94 dhs), susptrit × vada (su × v, 152 lines), and susptrit × cebada capa (su × cc, 113 lines) were tes...

introduction cultivated alfalfa (medicago sativa l.) is the main, most of the time the only, forage for ruminants in iran as well as many other parts of the world. harvesting high quality forage is critical for iranian dairy industry, because it affects the performance of animals and reduces amount of concentrates utilization in dairy diets. unfortunately the most parts of the concentrates ingr...

background: thymus daenensis is on e of the endemic aromatic species in iran that its essential oil is used in food and pharmaceutical industries. objective: in this study, the effects of plant growth stages and distillation methods on essential oil content and thymol percentage of this species were evaluated. methods: the aerial parts of th. daenensis were collected in three stages of plant gr...

Dear Editor,In spite of recent advances in treatment of infection and emphasis on adequate nutritional intake, patients with cystic fibrosis (CF) frequently have less than ideal body weight and adults are often shorter than their target height.1Owing to a state of relative growth hormone (GH) insensitivity, the anabolic and growth promoting effects of recombinant human GH (rhGH) treatment have ...