in order to investigate the effects of piriformospora indica and trichoderma tomentosum fungi on basil (ocimum basilicum l.) growth under copper nitrate levels, a pot experiment in factorial arrangement with three replicates was done during 2012. treatments were four levels of copper nitrate (0, 100, 200 and 300 mg kg-1 of soil) and four levels of fungal coexistence (non-inoculation control, in...

in this study, precipitated calcium carbonate (pcc) was modified using cationic starch, and its effect on optical and physical properties of paper was examined in comparison with unmodified filler afterwards. to determine the filler retention in paper, both modified and unmodified fillers were added to pulp suspensions by 20, 30, and 40 percentages. for comparing the utilization effect of modif...

to identify the high yielding lines with optimal characteristics, 40 recombinant inbred lines derived from a cross between ‘norstar’ (winter wheat) and ‘zagros’ (spring wheat) cultivars were examined using a randomized complete block design with three replications in 2014 at the research station of faculty of agriculture, university of tabriz, iran. the measured characters consisted of peduncle...

background and purpose:   methods:   results:   conclusion:

in order to investigate the impact of government policies on supply, cropping area and yield of sugar beet during 1981-2003, nominal rate of protection (nrp) was applied as a variable to persuade government’s policies in this study. results showed that despite of its negative impacts on cropping area, the nrp has positive effects on supply and yield of sugar beet iniran. moreover, real price of...

the extraction-separation of lanthanum and europium ions with bis(2-ethylhexyl) phosphoric acid (dehpa) in cyclohexane was improved by adding 12-crown-4 (12c4) to the aqueous phase as a masking agent. in the presence of this crown ether the extraction curve of lanthanum ions versus ph shifts to the higher ph region, while the curve is not influenced for the europium ions. consequently the separ...

introduction during the process photodynamic therapy (pdt), bleaching of photosensitizer induced by irradiation and generation of reactive oxygen species (ros) can provide some information concerning the efficiency of treatment. since gold nanoparticles (gnps) have been highlighted as efficient drug delivery systems, in this study, by utilizing gnps conjugated with 5 aminolevulinic acid (5-ala-...

drought resistance is a very important characteristic needed for plant survival especially at germination stage, in arid and semi-arid lands. phosphatase enzymes are widely found in plants. these enzymes are responsible for dephosphorylation of organic phosphate and altering it to mineral phosphate. germination experiments were conducted in two bread wheat cultivars (sardari and alvand) under s...

a simple method has been developed for the preconcentration of lead (ii) based on the adsorption of its 1-(2-pyridyl azo)2-naphtol (pan) complex on aoctadecyl bonded silica cartridges. the influence of acidity, eluting agents, stability of the column, sample volume and interfering ions has been investigated in detail. the adsorbed complex could be eluted using environmentally benign hno34m and ...

boron toxicity is becoming more extensively widespread in arid and semi arid regions, due to the application of either saline waters or irrigation waters containing a relatively high b content. results of research indicate that addition of certain plant nutrients such as n may reduce the harmful effect of high b levels. therefore, the present experiment was undertaken to evaluate the interactiv...