anise hyssop is a prennial herb belonging to the lamiaceae family. essential oil of this plant is used in food, pharmaceuticals, cosmetics industries as well as flavoring liqueurs. since water stress affects the growth, productivity, as well influences the active principles governing medicinal plants, in this research the effect of different water deficit stresses on such morphological traits a...

the use of such biostimulants as humic materials has recently become common in turf management operations. these products have been used to help the establishment of turfgrass and to enhance the turf stress tolerance capacity. this experiment was aimed at studying the effect of humic acid on some growth factors in turf grass. it was carried out in a factorial randomized complete block design (r...

introduction monitoring of salt lake dry areas is an important parameter for sustainable development and environmental protection. monitoring of dried areas of the salt lake requires extraction of thematic maps at different times. powerful tool for remote sensing of the earth different ecosystems, such as playa environments, is to produce valuable and useful data. the major causes of widespread...

extended abstract   introduction the most important indicator of climate in a region is vegetation community. climate can be different over large areas, because of changes in vegetation community. vegetation influences weather and climate in its surrounding areas mostly by way of evapotranspiration and albedo so they play a role in the earth’s energy balance. these effects on the earth’s energy...

normal 0 false false false en-us x-none ar-sa introduction: hepatitis b is one of the world's health problems and increased the risk of hepatocellular carcinoma and liver cirrhosis. medical students exposed to risk because of future job, and being infected than the general population. this study will survey level of knowledge, risk perception and behavioral intention medical students about hepa...

mechanical damages inflicted upon seeds in harvesting, handling and further subsequent processes are worth attention because they unfavourably influence the quality of seed. seed damage results in lower grain value, storage problems, and reduced seed germination and seedling vigor, resulting in a subsequent diminishing yield of future crops. the present experiments were conducted to determine t...

to examine the effect of mixing graminicide herbicides with liquid fertilizer in gorgan region, an experiment was conducted as factorial arranged in complete randomized block design (rcbd) with three replications at the research farm of islamic azad university of gorgan. the first factor was using topic, pumasuper and axial herbicides with the amounts of 0.8, 1, and 0.5 l/ha-1, respectively. th...

to determine sugar beet water requirement and the effect of changing the quantity of applied water on some production components, a study was carried out in ekbatan agricultural research station of hamedān, iran in four years (1994-1997) during which optimum water requirement, root and sugar yield, water use efficiency on the basis of root yield, sugar percentage and water use efficiency on the...

this study was conducted to determine the effects of different levels and sources of copper supplementation on hematological values, ceruloplasmin and plasma copper, zinc and iron status in mehraban male lambs. twenty growing lambs were randomly allotted to four different treatments. treatments consisted of 1) 10 mg/kg cu in the form of cuso4, 2) 20 mg/kg cu in the form of cuso4, 3) 10 mg/kg cu...