نتایج جستجو برای: ladybird hippodamia variegata goeze coleoptera coccinellidae has been reported from many parts of iran
تعداد نتایج: 21685463 فیلتر نتایج به سال:
the main objective in sampling is to select a sample from a population in order to estimate some unknown population parameter, usually a total or a mean of some interesting variable. a simple way to take a sample of size n is to let all the possible samples have the same probability of being selected. this is called simple random sampling and then all units have the same probability of being ch...
abstract reception environment has considerable effects on accepting a translation. as the expectations of a target culture and its values and needs change throughout history, its criteria for accepting a translation or rejecting it will change accordingly (gentzler, 2001). the expectations of iran, as the reception environment in the present study, have changed after the islamic revolution. i...
chapter i provides an overview of structural linguistics and touches upon the saussurean dichotomies with the final goal of exploring their relevance to the stylistic studies of literature. to provide evidence for the singificance of the study, chapter ii deals with the controversial issue of linguistics and literature, and presents opposing views which, at the same time, have been central to t...
Pink muhly grass Muhlenbergia capillaris (Lamark) Trinius is a perennial, tussock-forming that native to North and Central America. The reddish-purple coloration of the spikes this species has resulted in becoming popular as an ornamental plant around world. Interestingly, very few insects have been reported be associated with grass. I therefore examined arthropod assemblages on M. two urban pa...
in this study, the possible effects of host plant resistance on some demographic parameters and predation rate of hippodamia variegata goeze life stages have been investigated. demographic data and predation rate have been analyzed by the age-stage two-sex life table and consumption rate program. obtained results showed that preadult diuration and total preoviposition period (tpop) of ladybirds...
کفشدوزک شتهخوار Hippodamia variegata (Goeze) یک شکارگر موثر در بیشتر اکوسیستمهای کشاورزی میباشد. گیاهان میزبان شتهها میتوانند یک عامل موثر بر خصوصیات زیستی و کارایی شکارگرهای آنها باشند. لذا در این تحقیق اثر شش گیاه میزبان شته مومی کلم، Brevicoryne brassicae (Linnaeus)شامل کلمزینتی، کلمگل، تربچه، شلغم، کلزا و کلمبرگ روی نشوونما، تولیدمثل و جدول زندگی کفشدوزکH. variegata مورد مطالعه قرار...
in this thesis, a structured hierarchical methodology based on petri nets is used to introduce a task model for a soccer goalkeeper robot. in real or robot soccer, goalkeeper is an important element which has a key role and challenging features in the game. goalkeeper aims at defending goal from scoring goals by opponent team, actually to prevent the goal from the opponent player’s attacks. thi...
learning a second or foreign language requires the manipulation of four main skills, namely, listening, reading, speaking, and writing which lead to effective communication. it is obvious that vocabulary is an indispensible part of any communication, so without a vocabulary, no meaningful communication can take place and meaningful communication relies heavily on vocabulary. one fundamental fac...
this research was conducted in two protect and destroy region in the middle zagros, in illam province. in order to identification of ecological species group and evaluate density of regeneration, effect of many factors such as protection, vegetation, physiographic factors, physical and chemical properties of soil in study locations were studied. to achieve these purpose number of 54 plots using...
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