نتایج جستجو برای: i e
تعداد نتایج: 1949803 فیلتر نتایج به سال:
morpho-physiological responses of black locust (robinia pseudoacacia l.) seedlings to drought stress
this study was conducted to study of morpho-physiological responses of robinia pseudoacacia l. seedlings under drought stress by irrigation period at 4 levels (intervals of 4, 8, 12 and 16 days). the experiment was performed as completely randomized design in a greenhouse environment. results indicated that all studied traits were affected by water stress, except water use efficiency (wue). the...
decreasing water loss and increasing the irrigation times are basic methods to develop agriculture, success in natural recourse projects, minimize the stress to planted bushes in natural fields and increase the productivity of soil and water sources. the use of super absorbent is one of these strategies to achieve these goals. the main purpose of this research was to study the effect of super a...
application of various composts has been intensified in agriculture, due to manifestation of negative effects of chemical fertilizers on environment and soil fertility. however, their usage should be accompanied by environmental and nutritional studies. to study the effects of sulfur granular compost on yield and yield components of two wheat cultivars, a pot experiment was conducted in a compl...
it was recently demonstrated that 5-(5-nitrofuran-2-yl)-1, 3, 4-thiadiazoles with piperazinyl-linked benzamidine substituents are effective in vitro against leishmania major. following on this evidence, we used colorimetric assay of acid phosphatase activity in the promastigotes as an indicator for cell viability. also we studied the effect of these compounds on ind...
differentiating sepsis from other noninfectious causes of systemic inflammation is often difficult in the elderly. the aim of this study was to evaluate the ability of c-reactive protein (crp), erythrocyte sedimentation rate (esr), procalcitonin (pct), and interleukin-6 (il-6) to identify elderly patients with sepsis. in this single center prospective observational study, we included all consec...
background and pupose: methods: results: conclusion:
grape vine is one of the important horticultural crops with unique standing as regards use and consumption. the fruit is utilized from immature to ripened state and as raisins. its leaves can be used when they are soft and fresh. therefore it is necessary to improve iranian grapevine quality as well as quantity. the main purpose of this study was the use of phenyl phetalamic acid (ppa) to incre...
1. introduction isfahan oil refinery (isfahan, iran) is responsible for the production of huge amounts of oil waste. as the released organic compounds are highly toxic, carcinogenic, and mutagenic, they can potentially contaminate the soil and groundwater resources of the adjacent area. this is particularly important in isfahan where arid/semi-arid climate has limited the access to adequate sur...
to compensate for some inferior properties of recycled papers, application of processing chemical aids such as chitosan can be quite effective in the wet end section of papermaking. in this study, the performance of chitosan biopolymer, individually or associated with nanobentonite was investigated as wet end additive on recycling process of white cuttings. for this purpose, the performance of ...
introduction water vapor can spread in molecular, unstable and erratic phase and can also transfer by convection and advection process. this transfer happens from the earth and ocean surfaces to the atmosphere in hot air. this type of transfer is considered as the main pattern. in the studies of the atmosphere, one of the prominent factors to be considered is the complexity of water vapor and i...
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