نتایج جستجو برای: recommended concentration of three pesticides

تعداد نتایج: 21222526  

Journal: :نامه انجمن حشره شناسی ایران 0
علی درخشان شادمهری دانشگاه صنعتی شاهرود سمیه فرجی دانشجوی فارغ التحصیل شده علی مهرور هیات علمی- دانشگاه شهید مدنی آذربایجان

entomopathogenic fungi may be affected by pesticides used to protect crop plants. the in vitro compatibility of beauveria bassiana and metarhizium anisopliae with three fungicides and 16 insecticides was evaluated. the formulations of pesticides were tested in three concentrations (mean concentration (mc), half mc and twice the mc). all tested fungicides, at three concentrations, were incompati...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه سمنان 1392

in the area of vocabulary teaching and learning although much research has been done, only some of it has led to effective techniques of vocabulary teaching and many language learners still have problem learning vocabulary. the urge behind this study was to investigate three methods of teaching words. the first one was teaching words in context based on a traditional method of teaching that is,...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه رازی - دانشکده علوم 1388

abstract sensitive and precise voltammetric methods for the determination of trace amounts of furaldehydes, mainly as furfural (f) and 5-hydroxymethyl-2-furaldehyde (hmf), in waste waters and other matrices is described. determination of total furaldehyde at < ?g g-1 levels in alkaline buffered aqueous media was individually investigated. by the use of ordinary swv and adsorptive square wave ...

Journal: :محیط زیست طبیعی 0
زهرا یعقوب زاده مربی پژوهشی بخش بیوتکنولوژی آزمایشگاه میکروبیولوژی ـ پژوهشکدۀ اکولوژی رضا صفری مربی پژوهشی بخش بیوتکنولوژی آزمایشگاه میکروبیولوژی ـ پژوهشکدۀ اکولوژی

organochlorine pesticides are as environmental pollutants which have a high half-life and transmit from food chain to human and cause side effects such as mutations in different genes and finally cancer. in this research, after sampling and quantitative and qualitative of organochlorine residue, biodegradation of alpha, beta and gamma hexachlorobenzene (linden), ddt, aldrin, dieldrin, endosulfa...

ژورنال: سلامت و محیط زیست 2010
خدادادی, مریم, رحمانی, علیرضا, رسانی, علی الله, شهیدی, رضا, صمدی, محمد تقی, ملکی, رامین,

Backgrounds and Objectives: Water contamination by pesticides is considered as an environmentalproblem today. In terms of agricultural development and diversity of plant pests, the use of pesticides has been increasing. Hamedan province has a suitable agricultural condition, it has enjoyed significant development in this respect. Among all the cities of Hamedan province, Hamedan city has the hi...

Journal: :iranian journal of pharmaceutical research 0
attaollah shakouri school of pharmacy, shahidbeheshtiuniversity of medical sciences, tehran, i.r. iran hassan yazdanpanah school of pharmacy, shahidbeheshtiuniversity of medical sciences, tehran, i.r. iran. food and drug control laboratories, food and drug deputy, iranian ministry of health and medical education, tehran, i.r. iran mohammad hossein shojaee faroogh life sciences research laboratory, tehran, i.r. iran farzad kobarfard -

for the first time, a multi-residue methodfor simultaneous determination of 41lc-amenable pesticides in rice, belonging to different chemical classes has been developed in iran by lc-ms/ms. the pesticides were analyzed simultaneously in a single run using positive electrospray ionization with multiple reaction monitoring (mrm) after extraction with slightly modified quechers method. the calibra...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه علامه طباطبایی - دانشکده ادبیات و زبانهای خارجی 1391

abstract lexical knowledge of complex english words is an important part of language skills and crucial for fluent language use (nation, 2001). the present study, thus, was an attempt to assess the role of morphological decomposition awareness as a vocabulary learning strategy on learners’ productive and receptive recall and recognition of complex english words. so 90 sophomores (female and ma...

Journal: :Applied and environmental microbiology 1994
D W Dingman

Fourteen pesticides (fungicides, herbicides, and insecticides) were tested to determine whether they had deleterious effects on the bioinsecticide Bacillus popilliae, the causal agent of milky disease. All of these pesticides reduced levels of spore viability, spore germination, and/or vegetative cell growth when they were tested over a range of concentrations from 0 to 1,000 ppm of active ingr...

A. Mashian Moradi R. Golshani,

Pesticides are used extensively in agricultural lands in Northern provinces of Iran which makes river ecosystems more vulnerable to pesticides pollution. This study was conducted in three river estuaries (Babolrud, Tajanrud and Gorganrud), focusing mainly on the concentration levels of organophosphate pesticides (diazinon, malathion, azinphos-methyl) in the muscle tissue of golden mullet fish, ...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تربیت مدرس - دانشکده فنی مهندسی 1388

the purpose of this study is identifying effective factors which make customers shop online in iran and investigating the importance of discovered factors in online customers’ decision. in the identifying phase, to discover the factors affecting online shopping behavior of customers in iran, the derived reference model summarizing antecedents of online shopping proposed by change et al. was us...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید