نتایج جستجو برای: Relative Content

تعداد نتایج: 783257  

Journal: :به زراعی کشاورزی 0
ابوالفضل فرجی دانشیار، بخش زراعی و باغی، مرکز تحقیقات و آموزش کشاورزی و منابع طبیعی استان گلستان، گرگان، ایران

to study the effects of used water in evapotranspiration, seed number per unit area and leaf relative water content on seed weight of canola (brassica napus l.), an experiment was conducted as a randomized complete block design, arranged in a split-plot under two conditions, i.e. supplemental irrigation and rainfed in 2005-7. two cultivars of canola (‘hyola401’ and ‘rgs003’) as subplots were gr...

پایان نامه :دانشگاه آزاد اسلامی - دانشگاه آزاد اسلامی واحد تهران مرکزی - دانشکده زبانهای خارجی 1391

the ability of composing a coherent and extended piece of writing in second language is considered as a fundamental factor to convey information and ideas of learners through the academic issues. although learners may achieve a perfect academic writing skill through assigning the l2 tasks in content based instruction, but demonstration of their abilities may be related to their ability in l1 es...

Journal: :مدیریت خاک و تولید پایدار 0
محسن سیلسپور دانشجوی دکترای تخصصی شیمی و حاصلخیزی خاک دانشکده کشاورزی دانشگاه زنجان احمد گلچین استاد گروه علوم خاک دانشکده کشاورزی دانشگاه زنجان محمود رضا روزبان استادیار گروه علوم باغبانی پردیس ابوریحان دانشگاه تهران

salinity is one of the most important limiting factors for crops, because of most agronomic and horticultural crops are sensitive to salinity. on the other hands, considerable lands of the world were affected by salinity and they are increasing day by day. an experiment was conducted with five levels of irrigation water salinity in soilless culture and greenhouse condition to evaluate the effec...

تهرانی‌فر , علی, نعمتی, سید حسین, امامی , حجت , ولی زاده قلعه بیگ, اکرم ,

Water stress is a global crisis and is considered a serious threat for agriculture. Superabsorbent polymers, through improving soil physical conditions, prevent moisture stress in arid and semi-arid areas. To evaluate the effects of a natural superabsorbent (bentonite) and a synthetic superabsorbent (A200) on growth of lettuce, a factorial experiment in a completely randomized design with four ...

Journal: :مجله پژوهش های اکوفیزیولوژی گیاهان زراعی 0

abstract     crop residues are well known for their chemical (allelopathic) effects on crops. the allelopathic potential of the aqueous extracts and chopped residual of sorghum (sorghum bicolor l.) on germination, seedling growth, relative water content, seedling dry weight, seedling length and antioxidant enzyme activity namely catalase (cat), peroxidase (pod) and superoxide dismutase (sod) of...

A. Abbasi A. Javanmard F. Shekari V. Soltaniband

ABSTRACT- To investigate the effect of draught stress on water relations, stomatal density, chlorophyll content and yield of rapeseed, an experiment was done with four levels of drought stress including L1 (Field Capacity, FC), L2 (70% Available Water Content, AWC), L3 (50% AWC), and L4 (30% AWC), within three growth stages- including stem elongation (T1), onset of flowering (T2) and silique fo...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تبریز 1390

the present research study attempted to find out the extent to which two pre-task activities of “glossary of unknown vocabulary items” and “content related support” assisted efl language learners with their performance on listening comprehension questions across two different proficiency levels (low and high). data for this study were obtained from a total of 120 language learners, female and m...

Journal: :journal of agricultural science and technology 2013
r. farhoosh m. h. haddad khodaparast a. sharif s. alavi rafiee

the present study was conducted to determine the relative contribution of initial quality and compositional parameters to the rate of changes (rctpc) in the content of total polar compounds (tpc), which is considered to be one of the most reliable indicators of heated oils quality, of olive oil during continuous heating at 180 ºc. the ratio between monounsaturated and polyunsaturated fatty acid...

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