نتایج جستجو برای: respectively intrinsic rate of increase rm were 0272001

تعداد نتایج: 21223999  

Journal: :دانش گیاه پزشکی ایران 0
عماد مهاجری پاریزی دانشجوی ارشد دانشگاه یوعلی سینا حسین مددی استادیار بوعلی سینا همدان حسین الهیاری دانشیار دانشگاه تهران محمدرضا مهرنژاد دانشیار موسسه پسته رفسنجان

ladybird beetles are of a special standing in aphid biological control. they attack different aphid species and play an important role in suppressing aphid populations. one of the most conspicuous coccinellids namely hippodamia variegata, occurs in such different crops as alfalfa and vegetables. life history parameters of this predator at 25 ± 1 ?c and 16:8 (l: d) photoperiodicity were evaluate...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تربیت مدرس - دانشکده منابع طبیعی و علوم دریایی 1388

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...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تحصیلات تکمیلی علوم پایه زنجان - دانشکده شیمی 1391

in this thesis a calibration transfer method is used to achieve bilinearity for augmented first order kinetic data. first, the proposed method is investigated using simulated data and next the concept is applied to experimental data. the experimental data consists of spectroscopic monitoring of the first order degradation reaction of carbaryl. this component is used for control of pests in frui...

Journal: :journal of agricultural science and technology 2014
z. nozad bonab s. iranipour r. farshbaf pourabad

trissolcus grandis (thomson) (hymenoptera: scelionidae) is the most important egg parasitoid of the common sunn pest, eurygaster integriceps puton (hemiptera: scutelleridae) in iran. demographic characteristics may be used for preliminary screening of parasitoid species or populations as well as for predicting their efficiency under different physical conditions in the field. in this study, the...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه پیام نور - دانشگاه پیام نور استان تهران - دانشکده تربیت بدنی علوم ورزشی 1390

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...

Journal: :دانش گیاه پزشکی ایران 0
رویا فرهادی دانشجوی سابق کارشناسی ارشد، پردیس کشاورزی و منابع طبیعی دانشگاه تهران، کرج حسین اللهیاری دانشیار پردیس کشاورزی و منابع طبیعی دانشگاه تهران، کرج آرش راسخ استادیار دانشگاه شهید چمران اهواز مهسا الداغی دانشجوی کارشناسی ارشد پردیس کشاورزی و منابع طبیعی دانشگاه تهران، کرج فرهاد فرهودی دانشجوی کارشناسی ارشد پردیس کشاورزی و منابع طبیعی دانشگاه تهران، کرج

to provide reliable information concerning reproductive potential of hippodamia variegata goeze and its prey (aphis fabae), their related life tables were studied under controlled laboratory conditions (at 23?c). the unprocessed data of life tables were analyzed taking the euler-lotka as the basis model. standard error of population growth parameters was calculated using the jackknife re-sampli...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تربیت دبیر شهید رجایی - دانشکده علوم انسانی 1392

this study investigated the impact of explicit instruction of morphemic analysis and synthesis on the vocabulary development of the students. the participants were 90 junior high school students divided into two experimental groups and one control group. morphological awareness techniques (analysis/synthesis) and conventional techniques were used to teach vocabulary in the experimental groups a...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تبریز 1381

‏‎the hypothesis is that recent and frequent exposure to lexical items leads to a more fluent production of speech in terms of rate of speech. to test the hypothesis , a one- way anova experimental design was carried out. 24 senior student of efl participated in a one-way interview test. data analyses revealed that those who were exposed frequently to the lexical items over a week prior to inte...

پایان نامه :وزارت بهداشت، درمان و آموزش پزشکی - دانشگاه علوم پزشکی و خدمات بهداشتی درمانی مشهد - دانشکده دندانپزشکی 1390

objective: the objective of this study was to investigate the invitro fluoride release of four new self-adhesive resin cements; set (sdi, australia), breeze (pentron, usa), embrace wetbond (pulpdent, usa), g-cem (gc, japan) and to assess the bonding performance of these self-adhesive resin cements for bonding of orthodontic brackets. materials and methods: for fluoride release experiment, six ...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تبریز 1381

‏‎the hypothesis is that recent and frequent exposure to lexical items leads to a more fluent production of speech in terms of rate of speech. to test the hypothesis,a one-way anova experimental design was carried out. 24 sednior students of efl participated in a one-way interview test. data analyses revealed that those who were exposed frequently to the lexical items over a week prior to inter...

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