نتایج جستجو برای: 492 and 984 μm indole butyric acid iba the highest mean number of roots 906 roots per explants was observed on the ms medium supplemented with 492 μm iba
تعداد نتایج: 25935212 فیلتر نتایج به سال:
Dittany of Crete (Origanum dictamnus L.) is a threatened medicinal-aromatic plant Lamiaceae family which local endemic to the Island Crete, Greece. Its high culinary use and increasing demand in pharma, perfumery, cosmetic food industry along with its overexploitation from natural habitat has this species necessitated large-scale production for industrial exploitations using advanced technologi...
in this study, a simple, rapid and selective method was developed for the determination of dexamethasone. the proposed method is based on inhibitory effect of dexamethasone on the oxidation of orange-g by bromate in sulfuric acid media. the reaction was followed spectrophotometrically at 478.5 nm (?max). under optimum experimental conditions, (72.6 ?mol l-1 of orange-g, 0.76 mol l-1 of h2so4, 0...
abstract while task-based instruction is considered as the most effective way to learn a language in the related literature, it is oversimplified on various grounds. different variables may affect how students are engaged with not only the language but also with the task itself. the present study was conducted to investigate language and task related engagement on the basis of the task typolog...
an experiment was conducted to study the micropropagation of satureja khuzistanica. the seeds were planted in 1/2ms medium. after germination and growth of plantlets, they were subcultured in fresh medium. then, they cultured into medium supplemented by different concentrations of ba and kinetin. results showed that, the highest proliferation (2.4 shoots) was observed at concentrations of 0.5 m...
Rambutan tree (Nepheliumlappaceum L.) is an important but a lesser known fruit tree in Ghana and has several nutritional and medicinal uses. Efforts to establish plantation of Rambutan in Ghana to ensure its sustainable use is challenged with unavailable planting materials because the seeds are recalcitrant in nature, loses viability easily when exposed to dryness. Seeds are therefore sown dire...
rested on sociocultural theory (sct), this study attempted to examine the effect of written corrective feedback (wcf) followed by producing written languaging on developing writing accuracy over new tasks. to this aim, two intact iranian efl classes at the low-intermediate level were randomly assigned to two experimental groups: direct (n = 25) and indirect (n = 25). both groups wrote on a numb...
this research was conducted to examine the effect of a concurrent training on rest level of leptin of plasma and some hormonal factors in non-athlete subjects. the research population included non-athlete men who didn’t participate in any organized sport activities. 30 men were chosen voluntarily among the above-mentioned population and were divided into 2 groups: experimental (15 subjects) an...
rambutan tree (nepheliumlappaceum l.) is an important but a lesser known fruit tree in ghana and has several nutritional and medicinal uses. efforts to establish plantation of rambutan in ghana to ensure its sustainable use is challenged with unavailable planting materials because the seeds are recalcitrant in nature, loses viability easily when exposed to dryness. seeds are therefore sown dire...
this study aimed to investigate the effects of listening strategy training on iranian efl learners listening comprehension and use of such strategies. this work, employing an experimental methodology, was conducted among 60 adult efl learners from a language institute in isfahan, iran, as participants. the participants, who were selected based on the results of a placement test, were assigned t...
an efficient transformation system for the medicinal plant portulaca oleracea was established using agropine-type agrobacterium rhizogenes atcc15834. hairy roots were obtained directly from cotyledon leaves explants seven days after inoculation with the bacteria. the highest transformation efficiency was obtained from cotyledon leaves explants, and amounted to 53.3% within two weeks. roots grew...
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