نتایج جستجو برای: 7oc the lt50
تعداد نتایج: 16052888 فیلتر نتایج به سال:
conclusions the addition of tramadol to epidural 2% lidocaine offers advantages in cesarean section. results in the lt100 group, onset of complete sensory and motor blockade at t6 was less than in the two other groups, but the highest level of sensory blockade and two segment regression and duration of motor blockades between the lt50 and lt100 groups were not significantly different, although ...
تنش سرما از عوامل محدود کننده تولید گندم و جو در مناطق سرد کشور است. تا کنون میزان تحمل فنوتیپی به تنش سرما به صورت کمی در بین ارقام گندم و یا جو تعیین نشده است. در این تحقیق 32 ژنوتیپ گندم نان ، 8 ژنوتیپ گندم دوروم و 54 ژنوتیپ جو عادت داده شده به سرما( Acclimated ) مدت 6-5 هفته در شرایط مزرعه ( فضای آزاد) در قالب طرح آزمایش بلوک های کامل تصادفی در سه تکرار در سال زراعی 1381-1382 در ایستگاه مرا...
Context The ability of ectothermic stream invertebrates to adapt the predicted increases in mean and extreme temperatures is crucial ensuring they continue exist.Aims To examine plasticity thermal limits Australian Paratya spp. (Decapoda, Atyidae) from streams eastern New South Wales (NSW). We hypothesised that upper lethal temperature (ULT, as indicated by median temperature, LT50) would be hi...
به منظور بررسی تحمل به یخزدگی ارقام چغندرقند در شرایط کنترل شده، پژوهشی در دانشکده کشاورزی دانشگاه فردوسی مشهد به صورت آزمایش فاکتوریل در قالب طرح کاملاً تصادفی با سه تکرار اجرا شد. در این مطالعه هشت رقم چغندرقند (beta vulgaris l.) به نام های رسول، شیرین، ic و7233 (ارقام داخلی)، افشاری، پائولینا، ریزوفورت و لاتیتیا (ارقام خارجی) در معرض هشت دمای یخ زدگی (شامل صفر، 2-، 4- ، 6- ، 8- ، 10- ، 12- ...
The focus of this study was on quantifying fitness attributes, such as spore density and viability, and determining the virulence level against aphid (Aphis gossypii) nymphs of isolates from the fungal species Beauveria bassiana and Metarhizium anisopliae. The fungal isolates were obtained from several insects, including Plutella xylostella, Hypothenemus hampei, Bronstispa longissima, A. gossyp...
Matsucoccus matsumurae (Kuwana) (Hemiptera: Coccoidea: Matsucoccidae) is an invasive alien species and a destructive pest of two native Chinese pines, Pinus tabulaeformis Carr. and P. massoniana Lamb., throughout the eastern regions of China. The pathogenicity of three entomopathogenic fungi, Lecanicillium lecanii strain V3.4504 and V3.4505, Fusarium incarnatum-equiseti strain HEB01 and Lecanic...
This study tested susceptibilities of Anopheles minimus mosquitoes to deltamethrin during each of 19 generations (although technical problems excluded selective pressure experiments during generations 11-13). The ultimate goal was to establish a pyrethroid resistant colony of this important malaria vector in Thailand. Resistance was selected for by exposing, using the World Health Organization ...
UNLABELLED • PREMISE OF THE STUDY Cold tolerance is a critically important factor determining how plants will be influenced by climate change, including changes in snowcover and extreme weather events. Although a great deal is known about cold tolerance in Arabidopsis thaliana, it is not highly cold tolerant. This study examined cold tolerance and its genetic diversity in an herbaceous subarc...
virulence of blastospores and conidia of the fungus metarhizium anisopliae were investigatedon different instar nymphs and adults of sunn pest, eurygater integriceps. experiments werecarried out through a factorial arrangement in a completely randomized design of threereplications. the bioassays were performed through immersion method. results revealedsignificant differences among virulence of ...
ABSTRACT Parental effects can prepare offspring for different environments and facilitate survival across generations. We exposed parental populations of the estuarine anemone, Nematostella vectensis, from Massachusetts to elevated temperatures quantified larval mortality a temperature gradient. found that exposure resulted in consistent increase thermal tolerance, as measured by at which 50% l...
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