cold stress is considered as a restricting factor in plant production. recently, many different compounds were applied to minimize the harmful effects of stress. in this study, the effects of foliar application of salicylic acid was studied on some biochemical properties of two different cold resistant canola cultivars. salicylic acid was sprayed at four concentrations (0, 100, 200 and 400 µm) ...

Water stress is one of the most critical abiotic stresses that restricts growth, development, and alters physiological and biochemical mechanisms of plant. The effects of long-term water shortage-induced oxidative stress on morphophysiological parameters, proline metabolic genes, and artemisinin content were studied in Artemisia annua L. under greenhouse conditions. Plant growth, biomass accumu...

Substrate oxidation and amino acid transport were examined in the presence of sulfhydryl reagents with membrane preparations from Mycobacferium phlei. Oxidation of exogenously added @-NADH, succinate, ascorbate N, N, N’, IV’-tetramethyl-p-phenylenediamine, or ascorbate phenazinc methosulfate was inhibited by organic mercurials. The organic mercurials inhibited succinate oxidation between cytoch...

in order to determine the effects of zinc foliar application on the vegetative characteristics, yield and fruit quality in strawberry (fragaria × ananassa duch) cv kordestan under salinity stress conditions, an experiment was carried out hydroponically in glasshouse as a controlled environment during 2009 through 2010. three levels of nacl (0, 15, 30 mm) and three levels of zn (0, 1.5, 3 g/l) w...

Safflower germination and seedling growth stages are extremely sensitive to salinity. The study aimed identify safflower genotypes' germination, responses, biochemical changes in tolerant susceptible genotypes response salt stress. Total of 28 were subjected (NaCl) treatments (0, 180, 240 mM), percentage, mean time, root lengths, vigor index the determined. genotype, treatments, interaction eff...

Background: Broilers lung mechanisms that regulate endothelin (ET) in the lung are complex and poorly understood. Objectives: Methods: In this experiment lung ET-1 mRNA levels and lung mRNA expression for the ET(A) receptors were determined in lung tissue weekly (term = 42 days, intervals = 7 days). Serum endothelin concentration was also measured at these ages. Results: The study showed that e...