نتایج جستجو برای: local tarom
تعداد نتایج: 532081 فیلتر نتایج به سال:
Rice (Oryza sativa L.) is the most important food for half of the world's population. Rice is sensitive to salinity, which is one of the important stresses to limit rice growth and yield in Asia. In order to evaluate the effects of salinity stress on rice vegetative and agronomic characters an experiment was conducted using forty genotypes. The genotypes were tested at 4 salinity levels (0 6 8 ...
a study on larval parasitoids of carob moth, ectomyelois ceratoniae zeller, in pomegranate orchards in ghale-cham, qom province and tarom-e-sofla, zanjan province was carried out in 2006-2007. two species of fly parasitoids belonging to the family tachinidae were collected and identified as fischeria bicolor robineau-desvoidy and clausicella suturata rondani. the latter species is newly recorde...
مگس میوه زیتون، (Rossi) Bactrocera oleae حشره‌ای مونوفاژ بوده و مهمترین آفت زیتون در سرتاسر جهان بویژه کشورهای مدیترانه می‌باشد. این پژوهش به منظور مطالعه تغییرات جمعیت مراحل مختلف زندگی برخی ویژگی‌های زیست‌شناسی دو سال منطقه طارم سفلی استان قزوین انجام شد. نتایج بررسی نشان داد که حشره سفلی، سه تا پنج نسل دارد. زمستان را صورت حشرات کامل پناهگاه‌های ندرت شفیره زیر بقایای گیاهی خاک‌های نرم باغ‌ها...
BACKGROUND Aflatoxins are toxic fungal metabolites enable to contaminate a wide range of natural substrates. This contamination can be host-specific for different plant species. In this study, the ability of a toxigenic Aspergillus parasiticus to produce various aflatoxins on major Iranian cereals was evaluated with special focus on plant susceptibility to toxin production at cultivar level. ...
A precise map of the dispersion groundwater potential across each watershed can help decision-makers to exert optimal water management in region. In this research, resources both Zanjanrood Catchment and Tarom Region, located northwest Iran, has been studied. Seven effective criteria including slope, land-use, drainage density, spring lithology, lineament rainfall are considered. Criteria were ...
in order to evaluation of rice stem borer's damage (chilo suppressalis walker), on rice cultivars an experiment was carried out by two factors, (three cultivars and five spraying times), in completed randomized block design an factorial sampling was conducted on the hills infested to deadhearts (d.h), whiteheads (w.h) and yield loss. five hills were randomly selected from each plot and...
فرض کنیمr یک حلقه تعویض پذیر ویکدار موضعی باشدو(j(r رایکال جیکوبسن r و(z(r مجموعه مقسوم علیه های صفر حلقه r باشد.گوییم r یک حلقه z- موضعی است هرگاه j(r)^2=. .همچنین برای یک حلقه تعویض پذیر r فرض کنیم c یک عنصر ناصفر از (z( r باشد با این خاصیت که cz( r)=0 گوییم حلقه موضعی r یک حلقه c - موضعی است هرگاه و{0 و z(r)^2={cو z(r)^3=0, نیز xz( r)=0 نتیجه دهد که x عضو {c,0 } است. در این پایان نامه ساخ...
Background and Objective: Failure To Thrive (FTT) is one of the important health issues in children; not dealing with this disorder may lead to more serious consequences like increased death rate and appearance of other physical disabilities. The aim of this study was application of longitudinal transition model and longitudinal marginalized transition model in analysis of longitudinal data abo...
In order to study the genetic diversity of 75 Iranian rice genotypes (45 Iranian land race, 25 improved cultivars, and 5 exotic cultivars) with respect to their salinity tolerance at seedling stage and to determine tolerance indices, based on biomass, genotypic code and Na+/K+ ratio a factorial experiment in randomized complete block design with three replications was conducted under control an...
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