نتایج جستجو برای: stomatal components of photosynthesis in general

تعداد نتایج: 24468198  

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

insurers have in the past few decades faced longevity risks - the risk that annuitants survive more than expected - and therefore need a new approach to manage this new risk. in this dissertation we survey methods that hedge longevity risks. these methods use securitization to manage risk, so using modern financial and insurance pricing models, especially wang transform and actuarial concepts, ...

Journal: :به زراعی کشاورزی 0
رقیه امینیان مربی، گروه زراعت و اصلاح نباتات، دانشکده کشاورزی، دانشگاه آزاد اسلامی واحد نراق، نراق شهرام محمدی ده چشمه دانشیار، گروه زراعت و اصلاح نباتات، دانشکده کشاورزی، دانشگاه شهرکرد، شهرکرد سعدالله هوشمند استادیار، گروه زراعت و اصلاح نباتات، دانشکده کشاورزی، دانشگاه شهرکرد، شهرکرد محمود خدام باشی دانشیار، گروه زراعت و اصلاح نباتات، دانشکده کشاورزی، دانشگاه شهرکرد، شهرکرد کریم نوزاد نمینی مربی، گروه زراعت و اصلاح نباتات، دانشکده کشاورزی، دانشگاه آزاد اسلامی واحد نراق، نراق

this study was conducted to determine the effects of stomatal size and frequency on stomatal conductance, photosynthesis rate and yield, and to locate the genes controlling these traits. therefore, substitution lines series of ‘timstein’ (tim) into genetic background of ‘chinese spring’ (cs) were tested in a completely randomized block design with three replications under two normal and water s...

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...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شیراز - دانشکده زبانهای خارجی 1393

feminine voice and narratology in wuthering heights wuthering heights as a general "bronte" work has extraordinary dimensions to it which can make it focal to different ways of interpretation. among other differences the issue of narrative voice is essential in understanding the ultimate purpose of wuthering heights. emily bronte uses different narrators from various focal points speaking of m...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شیراز - دانشکده ادبیات و زبانهای خارجی 1392

abstract i the purpose of this study was to launch a thorough investigation concerning the possibility of differing orientations to the writing proficiency construct by native and non-native english speaking teacher raters. it mainly revolved around the international english language testing system (ielts) that is widely administered and employed as a measure of general proficiency in englis...

سجادی‌نیا, عبدالرضا , شعبانی, ادریس , طباطبایی, سید جلال ,

Presence of heavy metals (such as lead, Pb) in plants is one of the major environmental stresses that decrease plant growth. Therefore, it is essential to determine the threshold of the plants' tolerance to these elements. In this regard, to evaluate the effect of different concentrations of Pb on eco-physiological traits of petunia plant, an experiment was carried out in the hydroponics greenh...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه سمنان - دانشکده علوم انسانی 1393

charles dickens was a voracious reader even in his childhood. his early reading of seventeenth- and eighteenth-century picaresque fiction greatly influenced his writing style. his first novel, the pickwick papers, is a tale of rogues and swindlers, adventures and quests, satire and comedy, and innocence and experience. oliver twist, dickens’ second novel, is a young boy’s progress through a cor...

Journal: :Annals of botany 2009
Nelson J M Saibo Tiago Lourenço Maria Margarida Oliveira

BACKGROUND Environmental conditions, such as water supply, temperature and salinity, strongly affect plant growth and development. Extremes of these conditions (abiotic stresses) adversely affect many different mechanisms associated with plant responses and adaptation to stress: photosynthetic mechanisms, e.g. stomatal control of CO(2) diffusion, photosystem II repair, ribulose bisphosphate car...

Journal: :آب و خاک 0
سمانه اسکندری وحید مظفری احمد تاج‎آبادی‎پور

abstract a greenhouse experiment was conducted to study the effects of soil copper (cu) and salinity application on photosynthesis parameters, enzyme activity and anatomical structure of two pistachio cultivars. a factorial greenhouse experiment was carried out as completely randomized design with three replications. treatments consisted of four cu levels (0, 2.5, 5, and 7.5 mg kg-1soil as cuso...

2012
Dennis H. Greer

BACKGROUND AND AIMS Grapevines growing in Australia are often exposed to very high temperatures and the question of how the gas exchange processes adjust to these conditions is not well understood. The aim was to develop a model of photosynthesis and transpiration in relation to temperature to quantify the impact of the growing conditions on vine performance. METHODOLOGY Leaf gas exchange was...

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