نتایج جستجو برای: osmotic potential

تعداد نتایج: 1083538  

Journal: :به زراعی کشاورزی 0
ریحانه پیشکام راد کارشناس ارشد گروه علوم زراعی و اصلاح نباتات، پردیس ابوریحان، دانشگاه تهران. علی ایزدی دربندی دانشیار گروه علوم زراعی و اصلاح نباتات، پردیس ابوریحان، دانشگاه تهران مریم شهبازی استادیار گروه فیزیولوژی، پژوهشکدۀ بیوتکنولوژی کشاورزی ایران مهدی فاضل نجفآبادی استادیار گروه علوم زراعی و اصلاح نباتات، پردیس ابوریحان، دانشگاه تهران. حمیدرضا نیکخواه استادیار، بخش تحقیقات غلات، مؤسسۀ اصلاح و تهیۀ نهال و بذر، کرج – ایران. رها عابدینی دانشجوی کارشناسی ارشد بیوتکنولوژی، پژوهشکدۀ بیوتکنولوژی کشاورزی ایران. مرتضی براتی

in order to study the reaction of barley genotypes to drought, an experiment was conducted in a factorialdesign based on crd for two wild ecotypes and four crop genotypes of barley in greenhouse. in thisstudy, the barley genotypes and wild ecotypes as the first factor and irrigation treatment with three levelsinclude 70 percent of water holding capacity of soil, 30 and 10 percent as the second ...

Journal: :Hortscience 2022

Neck shrivel is a fruit disorder of european plum ( Prunus domestica L.). We investigate whether an asymmetrical distribution osmolytes might explain the observations turgid stylar end and flaccid stem end, in selection 17 cultivars sourced from two sites. The osmotic potential (Ψ Π ) juices expressed or samples decreased (became more negative) during development. cell turgor P slightly increas...

B. Nakhoda M. Shahbazi M. Sharbatkhari, S. Galeshi Z.S. Shobbar

Salt stress is one of the major constraints for wheat cultivation inIranand leads to a considerable loss in crop yield each year. In high salinity soils, the reduced osmotic potential of soil solutes may cause physiological drought. In this study the salt tolerance of different drought-tolerant bread wheat genotypes were studied by examining various agronomic and physiological traits, inclu...

Journal: :تولید گیاهان زراعی 0

present study was conducted to investigate the effects of different osmotic potentials (0.0 mpa, -0.4 mpa, -0.8 mpa and -1.2mpa) induced by nacl and polyethylene glycol-6000(peg) as salinity and drought stress respectively on germination and early growth of two inbred lines of maize (mo17 and b73). the objective was to compare the germination ability between tow maize inbred lines in salt and d...

Journal: :علوم گیاهان زراعی ایران 0
افراسیاب راهنما استادیار، دانشکده کشاورزی، دانشگاه شهید چمران اهواز رنا مانز استاد، مؤسسۀ تحقیقات علمی و صنعتی کشورهای مشترک المنافع (csiro)، کنبرا، استرالیا ریچارد جیمز استاد، مؤسسۀ تحقیقات علمی و صنعتی کشورهای مشترک المنافع (csiro)، کنبرا، استرالیا

salinity affects plant growth by the osmotic stress of salt around the roots as well as by toxicity caused by excessive accumulation of salt in leaves. the study of photosynthetic traits as a rapid and non-destructive tool demonstrates the great potential for improving plant productivity and stress tolerance. a pot experiment was carried out to investigate short-term effects of osmotic stress (...

Extended abstract Introduction: Seed germination is one of the first important and complex stages in the plant life cycle and is affected by many hereditary and environmental factors. Various factors affect germination and seedling establishment. Among these factors are the characteristics of the maternal plant (nutrition, genetics), seed treatment stage at harvest time, as well as environment...

2008
Chang-Duck Koo Sun-Young Cho

This study was conducted to understand how osmotic potentials in Lentinula edodes tissues are related to water contents and how they change while a mushroom matures. Water content and osmotic potential of L. edodes mushroom tissues from log cultivation and sawdust cultivation were measured and the relationships were analyzed. Osmotic potentials in the tissues were exponentially proportional to ...

Journal: :Journal of environmental biology 2010
Veer Pratap Yogesh Kumar Sharma

An experiment was conducted to see the impact of osmotic stress as it is one of the main cause in various soil and water disorders in agricultural field crops, speciallythe seed germination and seedling growth. The osmotic stress was generated using PEG-6000 and the seed germination, seedling growth were evaluated including the status of pigments i.e. chlorophyll (a, b and total), total caroten...

Journal: :journal of agricultural science and technology 2012
m. valifard a. moradshahi b. kholdebarin

zagros (drought tolerant) and pishtaz (drought susceptible) cultivars were classified on the basis of shoot dry weight and were used as plant material in this study. total chlorophyll, carotenoids, antocyanins, proline, soluble sugar contents, lipid peroxidation, antioxidant enzyme activities and protein patterns were determined. seedlings of wheat genotypes were grown in nutrient solution cult...

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In order to evaluate the effect of Piriformospora indica fungi inoculation on antioxidant systems and photosynthetic pigments of stevia medicinal plant under salt and drought stresses, an in vitro experiment was conducted. Experiment arranged in factorial based on completely randomized design with three replicates. Treatments were three levels of osmotic potential (0, -5, and -10 bar), three os...

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