نتایج جستجو برای: rootshoot fresh and dry weight ratio

تعداد نتایج: 16894407  

Nemati, S. H., Rashidi, A., Tehranifar, A.,

The aim of this study was to examine how timing of supplemental lighting and different light combinations affect the vegetative and reproductive responses of petunia (Petunia × hybrida Super cascade Blue). This experiment was designed as a factorial based on a randomized complete blocks design with three replications. After being in the greenhouse for 12 hours, the plants received supplemental ...

Journal: :مرتع و آبخیزداری 0
مجتبی اخوان ارمکی دانشجوی دکتری مرتعداری، دانشکدة منابع طبیعی دانشگاه تهران حسین آذرنیوند دانشیار منابع طبیعی دانشگاه تهران محمد حسن عصاره استاد مؤسسة تحقیقات جنگ لها و مراتع کشور علی اشرف جعفری دانشیار مؤسسة تحقیقات جنگ لها و مراتع کشور علی طویلی دانشیار دانشکدة منابع طبیعی دانشگاه تهران

environmental stress especially drought is one of the most important factors to reduce and disturbance in different stages of floral growth especially sprouting in dry and semi-dry lands of iran. for this purpose a factorial essay executed in accidentally manner with four iterations in vitro condition. four genotypes of bromus tomentellus pasture types were used (92 tehran, 630 kordestan, 3414 ...

لعیا راثی‌پور, , ناصر علی‌اصغرزاده, ,

Certain microorganisms in soil have phosphate solubilizing ability. Phosphorus has an important role in plant nutrition and N2 fixation in legumes. The interactive effect of three phosphate solubilizing bacteria (PSB) and Bradyrhizobium japonicum on yield and N, P, K uptake and nodulation of soybean root (Glycin max L. CV. Harcor) was studied under greenhouse conditions. In greenhouse experimen...

Journal: :علوم باغبانی 0
پیام پاکدل علی تهرانی فر سید حسین نعمتی امیر لکزیان سیده مهدیه خرازی

abstract to study the effects of four types of mulches including wood chips, municipal compost, sawdust and gravel in three different thicknesses on growth of platanus orientalis during two years, an experiment was conducted in mashhad area with semi-arid climate. the research was conducted as split plot based on a completely randomized block design with four replications. treatments included c...

This research was conducted at the research field of West-Azerbaijan (Saatloo station, 45° 10′ 53˝ E/ 37° 44′ 18˝ N and 1338 m above sea level), located 25 km from Urmia city (Iran) during 2019-2020 cropping seasons, as a factorial layout based on randomized complete block design with three replications. The first factor was irrigation regime at three levels (supplying 100, 75 and 50% of net ir...

پایان نامه :دانشگاه آزاد اسلامی - دانشگاه آزاد اسلامی واحد تهران مرکزی - دانشکده مدیریت 1392

data envelopment analysis (dea) is a powerful tool for measuring relative efficiency of organizational units referred to as decision making units (dmus). in most cases dmus have network structures with internal linking activities. traditional dea models, however, consider dmus as black boxes with no regard to their linking activities and therefore do not provide decision makers with the reasons...

ﺷﻴﺨﻲ, ﺟﻤﺎﻝ, ﻓﻴﻀﻲ ﺍﺻل, ﻭﻟﻲ, مرادی, صلاح الدین , ﺑﺸﺎﺭﺗﻲ, ﺣﺴﻴﻦ ,

To evaluate the effect of arbuscular mycorrhizal (AM) fungi (Glomus mosseae and Glomus intraradices) and Mesorhizobium Ciceri bacteria at three soil moisture levels [28% (field capacity, FC), 15% (-5 bar suction) and 9% (-10 bar tension) by weight] on morphological properties of root and aerial parts of chickpea, a greenhouse factorial experiment, arranged as a complete randomized design, was c...

Journal: :علوم گیاهان زراعی ایران 0
راحله قاسم زاده دانشجوی دکتری، پردیس کشاورزی و منابع طبیعی دانشگاه تهران، کرج علیرضا طالعی استاد، پردیس کشاورزی و منابع طبیعی دانشگاه تهران، کرج قاسم حسینی سالکده دانشیار، پژوهشکدۀ بیوتکنولوژی کشاورزی، کرج سید علی پیغمبری استاد، پردیس کشاورزی و منابع طبیعی دانشگاه تهران، کرج محمد رضا نقوی استاد، پردیس کشاورزی و منابع طبیعی دانشگاه تهران، کرج

in this study the response of 9 rapeseed genotypes were evaluated at the seedling stage using different irrigation levels (50, 70 and 100% fc). a factorial experiment based on rcbd was conducted in the research greenhouses of urmia university with four replications during summer of 2013. some physiological traits such as relative water content, stomatal conductance, transpiration, photosynthesi...

Journal: :چغندرقند 0
نسرین یاوری مؤسسه تحقیقات چغندرقند سیدیعقوب صادقیان اعضاء هیئت علمی مؤسسه تحقیقات چغندرقند محمود مصباح اعضاء هیئت علمی مؤسسه تحقیقات چغندرقند

seeds of nine sugar beet lines: five drought tolerant, two susceptible, and two medium tolerant were washed, sterilised, dried, and sown in water agar medium for germination test. seedling growth characters such as cotyledon fresh weight (cfw), cotyledon dry weight (cdw), root fresh weight (rfw), root dry weight (rdw), and root length (rl) were determined after the end of 28 days period of expe...

The interaction between sodium and calcium, magnesium and calcium and the combined effect of sodium, magnesium and calcium was observed on the growth and ion uptake of Hippophae rhamnoides L. The results demonstrated that an addition of sodium with calcium, (set a, Na 2.5 + Ca 5 mM) showed prominent increase in fresh weight of roots and shoots. The dry weight (average) of roots decreased an...

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