نتایج جستجو برای: population growth parameters

تعداد نتایج: 1977652  

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه صنعتی اصفهان - دانشکده منابع طبیعی 1392

nowadays, air pollution is a global problem that has had significant growth by technology development, population growth andindustrial development. industrial development brought natural resources deterioration, more manufacturing products, and more environmental pollutants. if pollutant won’t be controlled, human-being and wildlife will face the critical risks. significant release and critical...

Journal: :iranian journal of science and technology (sciences) 2012
r. malekzadeh-viayeh

two iranian strains of brachionus rotifers were cultured under different food and salinity regimes. the rotiferswere fed with five algal types (freshwater and marine chlorella vulgaris, nannochloropsis occulata, isochrysisgalbana and scenedesmus obliquus) at three different salinities (5, 15 and 25 g/l) and their reproductive and growth parameters were assessed. the maximum number of ovigerous ...

Journal: :international journal of horticultural science and technology 2014
mohamadreza zokaee-khosroshahi mahmoud esna-ashari ahmad ershadi ali imani

this study was undertaken to identify morphological changes in young seedlings of 5 iranian almond species (prunus dulcis, p. eburnea, p. eleagnifolia, p. haussknechti, and p. scoparia) under polyethylene glycol-induced drought stress. drought stress caused a significant reduction in plant growth parameters such as fresh and dry weights of plant organs, leaf number, total leaf area, and leaf re...

Journal: :international journal of horticultural science and technology 2015
aram hosseini ali gharghani

the effects of three arbuscular mycorrhizal fungi (amf) species (glomus versiforme, claroideoglomus etunicatum and rhizophagus intraradices) were studied on the growth parameters and nutrient uptake of three apple rootstocks (m.9, m.7 and mm.106). the soil medium contained a high level of calcium carbonate (38.65%). the results showed that amf inoculation could increase almost all growth parame...

Journal: :کنترل بیولوژیک آفات و بیماری های گیاهی 0
آمنه مظلومی لیلی دانشجوی کارشناسی ارشد رشتة بیماری شناسی گیاهی، گروه گیاه پزشکی دانشگاه جیرفت حمیدرضا علیزاده استادیار گروه گیاه پزشکی دانشگاه جیرفت ناصر برومند استادیار گروه علوم خاک، دانشگاه جیرفت ذبیح الله اعظمی ساردویی استادیار گروه گیاه پزشکی دانشگاه جیرفت

trichoderma spp. are known as efficient plant growth promoting agents. hence, enrichment of soil by appropriate population of trichoderma is useful and important for effective plant growth promote. present study aimed to investigate the plant growth promoting effects of five strains of the genus trichoderma species include: trichoderma harzianum tr6, t. harzianum t22, t. asperellum t34, t. atro...

Journal: :iranian journal of child neurology 0
mohammadreza alaei assistant professor of pediatric endocrinology, pediatric neurology research center, shahid beheshti university of medical sciences(sbmu),tehran, iran mohammad reza ghazavi assistant professor of pediatric neurology, pediatric neurology research center, isfahan medical university, isfahan, iran farhad mahvelati assistant professor of pediatric neurology, pediatric neurology research center, shahid beheshti university of medical sciences(sbmu),tehran, iran parvaneh karimzadeh associate professor of pediatric neurology, pediatric neurology research center, shahid beheshti university of medical sciences(sbmu),tehran, iran mohammad reza shiva pediatrician seyyed hassan tonekaboni associate professor of pediatric neurology, pediatric neurology research center, shahid beheshti university of medical sciences(sbmu),tehran, iran

objective the aim of this study was to evaluate the effect of the ketogenic diet on the growth parameters of the children with resistant epilepsy. materials & methods a total of 36 children with resistant epilepsy who were 2 to 7 year old were put on the ketogenic diet. their growth and biochemical parameters were studied at the beginning of the study and after 3 months. results weight decrease...

Journal: :محیط شناسی 0
حسین رحمانی

in this study, age and growth for two populations of shemaya, chalcalburnus chalcoides, in haraz and shirud rivers were investigated from april to june 2006. 704 fish specimens were collected using a cast- net. the maximum length and weight in a 5- year old female observed were 251 mm and 96 gr, respectively. the most abundant age groups were 2+ and 3+ years for male and female respectively. wh...

Saeid Modarres Najafabadi

The life table parameters of Macrosiphum rosae L. (Hemiptera: Aphididae) on five vermicompost-tea (tea-compost) concentrations (20, 40, 60, 80 and 100%) and control treatment (0%) on Rosa hybrida L. were determined under laboratory conditions. There were significant differences among pre-imaginal period and adult longevity of the aphid on the five teacompost concentrations. The highest mortalit...

Journal: :journal of fasting and health 0
hossein haratipour pediatrician, shahroud university of medical sciences, iran mohammad bagher sohrabi general practitioner, shahroud university of medical sciences, iran elham ghasemi general practitioner, shahroud university of medical sciences, iran atefeh karimi general practitioner, shahroud university of medical sciences, iran pooneh zolfaghari general practitioner, shahroud university of medical sciences, iran elahe yahyaei bsc of management, shahroud university of medical sciences, iran

introduction: there are many advantages in breastfeeding of infants. the impact of fasting of breastfeeding mothers during ramadan, on their exclusively breastfed infants’ growth, is still unclear. the objective of this study is to determine the impact of maternal ramadan fasting on growth parameters of exclusively breastfed infants. methods: this cohort study was conducted on 55 healthy, exclu...

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