نتایج جستجو برای: carotene and chlorophyll in caspian sea microalgae under nutrient deficiencies stress

تعداد نتایج: 21878412  

Journal: :علوم گیاهان زراعی ایران 0
حامد کشاورز دانشجوی کارشناسی ارشد دانشکده کشاورزی دانشگاه تربیت مدرس، تهران سید علی محمد مدرس ثانوی استاد دانشکده کشاورزی دانشگاه تربیت مدرس، تهران فاطمه زرین کمر استادیار دانشکده کشاورزی دانشگاه تربیت مدرس، تهران آریا دولت آبادیان دانشجوی دکتری دانشکده کشاورزی دانشگاه تربیت مدرس، تهران مهدی پناهی استادیار دانشگاه زنجان کمال سادات اسیلان استادیار دانشگاه پیام نور

cold stress is considered as a restricting factor in plant production. recently, many different compounds were applied to minimize the harmful effects of stress. in this study, the effects of foliar application of salicylic acid was studied on some biochemical properties of two different cold resistant canola cultivars. salicylic acid was sprayed at four concentrations (0, 100, 200 and 400 µm) ...

Journal: :به زراعی کشاورزی 0
معصومه نعیمی استادیار، گروه تولیدات گیاهی، دانشکدۀ کشاورزی و منابع طبیعی، دانشگاه گنبد کاووس، ایران غلام علی اکبری دانشیار، گروه علوم زراعی و اصلاح نباتات، پردیس ابوریحان، دانشگاه تهران، ایران امیرحسین شیرانی راد استاد پژوهش، بخش دانه های روغنی، مؤسسۀ تحقیقات اصلاح و تهیۀ نهال و بذر، کرج، ایران طاهره حسنلو استادیار پژوهش، بخش فیزیولوژی، پژوهشکدۀ بیوتکنولوژی کشاورزی، کرج، ایران غلام عباس اکبری دانشیار، گروه علوم زراعی و اصلاح نباتات، پردیس ابوریحان، دانشگاه تهران، ایران مهدیه امیری نژاد استادیار، گروه علوم گیاهی، دانشکدۀ کشاورزی، دانشگاه جیرفت، ایران

in order to evaluate the effect of zeolite application and selenium spraying on some physiological traits and grain yield in medicinal pumpkin (cucurbita pepo l.) under different moisture regimes, a study was conducted in a factorial experiment based on randomized complete block design with three replications during 2010 in takestan at gazvin province, iran. the three levels of irrigation facto...

Siamak Jamshidi,

Abstract The study presents monthly variations of seawater properties, monitoring water column stability and stratification over the southern shelf of the Caspian Sea which depends on collecting data. Field measurements were carried out during 13 cruises along the southern boundary of the sea. Spatial and temporal distributions of temperature, salinity and density were investigated. Monthl...

Journal: :پژوهش های تولید گیاهی 0
مونا پوردهقان دانشجوی کارشناسی ارشد زراعت دانشگاه تربیت مدرس سید علی محمد مدرس ثانوی استاد گروه زراعت دانشگاه تربیت مدرس فائزه قناتی دانشیار دانشکده علوم گیاهی، دانشگاه تربیت مدرس سمیه کرمی دانشجوی کارشناسی ارشد زراعت دانشگاه تربیت مدرس

in order to investigate the effect of hexaconazole (hex) on the increasing tolerance to water deficit stress of two soybean (glycine max l.) cultivars, an experiment was conducted in faculty of agronomy of tarbiat modares university as factorial experiment in randomized complete block design arrangement. factors examined in this study were included soybean cultivars (l17 and clark63), hex conce...

2009
P. M. Dolukhanov

This paper is focused on the discussion of the exact age, and environmental setting of the ‘Khvalynian’ Transgression of the Caspian Sea with the use of novel radiometric, isotopic evidence and GIS-linked modelling. Based on this evidence the Khvalynian transgression is viewed as coeval with the warm Late Glacial episodes in the higher latitudes, reaching its peak at 13.6 11.8 ka. During that p...

حیدری, مصطفی, رضاپور, علیرضا ,

In order to study the effects of water stress and different amounts of sulfur fertilizer on grain yield, nutrient status and chlorophyll content in black cumin (Nigella sativa L.) a field experiment as split plot design with three replications was conducted at Ghaen city in 2009. Treatments included three levels of irrigation after 50, 100 and 150 mm evaporation from Class A pan as main plot an...

2000

NatuRose algae meal is safe natural source of astaxanthin derived from a unique strain of the microalgae, Haematococcus pluvialis. The majority of the NatuRose carotenoid fraction is astaxanthin, with about 15% of the remaining fraction consisting of canthaxanthin, lutein and beta-carotene. NatuRose is spray dried and formulated into a fine dark red powder and is currently used worldwide as a c...

Journal: :Journal of Biotechnology 2021

As the periodic emission of light pulses by emitting diodes (LEDs) is known to stimulate growth or induce high value biocompounds in microalgae, this flashing regime was tested on and biochemical composition microalgae Nannochloropsis gaditana, Koliella antarctica Tetraselmis chui. At low frequencies (e.g., 5 50 Hz, Duty cycle = 0.05), a strain-dependent inhibition an accumulation protein, poly...

2016
Igor P. Medvedev Alexander B. Rabinovich Evgueni A. Kulikov

Tides are the main type of sea level variability in the world oceans. However, oceanic tides penetrate weakly, or do not penetrate at all, into enclosed basins such as the Baltic, Black, and Caspian seas. Consequently, only directly forced tides are formed in these basins. Long observation time series (up to 123 years in the Baltic Sea and 38 years in the Black and Caspian seas) at numerous sta...

Journal: :پژوهش های جغرافیای انسانی 0
محمدرضا حافظ نیا استاد جغرافیای سیاسی، دانشگاه تربیت مدرس زهرا احمدی پور استاد جغرافیای سیاسی، دانشگاه تربیت مدرس سپنتا مجتهدزاده استادیار حقوق بین الملل، دانشگاه مازندران حسن پیردشتی دانشجوی دکتری جغرافیای سیاسی، دانشگاه تربیت مدرس

demonstration of the geomorphological factors in setting the legal regime of the caspian seaintroduction:the caspian sea is the largest water basin which enclosed by land within eurasia continent. the caspian sea is unique in many reasons: the large deposits of oil and gas, valuable fishery resources; including 90% of the world’s stock of sturgeon, important transportation routes; connecting th...

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