نتایج جستجو برای: water stress had significant effect on phosphorus

تعداد نتایج: 9762648  

Journal: :آب و خاک 0
افسانه تنگو علی مهدوی احسان صیاد

to study the effect of aquazorb super absorbent polymer (sap) on reducing drought stress of acacia victoriae seedling, a split plot experiment based on the completely randomized design was conducted. in this research, stressed treatment as the main plots and amount of superabsorbent were considered as sub plot. treatments were applied consisted of four levels of drought stress (15, 30, 60 and 1...

Journal: :Journal of environmental quality 2017
Karen R Ryberg

Attribution of the causes of trends in nutrient loading is often limited to correlation, qualitative reasoning, or references to the work of others. This paper represents efforts to improve causal attribution of water-quality changes. The Red River of the North basin provides a regional test case because of international interest in the reduction of total phosphorus loads and the availability o...

Journal: :international journal of advanced biological and biomedical research 2014
mahdi aghaalikhani arash roozbahani amir hassan omidi

in order to study the effect of bio-fertilizers  in decrease the effects of water stress on yield, yield components and oil percentage of goldasht spring safflower cultivars (carthamus tinctorius l.), an experiment on split plot in a randomized complete block design with three replications was carried out  in 2012 at the agricultural research station of islamic azad university of roudehen branc...

In order to study the effect of drought stress on seedling morpho-physiological traits of alfalfa (Medicago sativa), the seeds of ten populations were collected in their natural habitats from different parts of the Fars province, Iran in 2013. A factorial experiment was conducted using 10 alfalfa populations and four water stress treatments of 100, 75, 50, and 25% Field Capacity (FC) b...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه فردوسی مشهد - دانشکده کشاورزی 1388

چکیده به منظور بررسی اثر تنوع گیاهی و نوع منبع تغذیه ای بر تنوع و تراکم علفهای هرز و حشرات، کارایی مصرف نهاده ها ( نور، آب، عناصر غذایی) و عملکرد و خصوصیات کیفی چند گونه زراعی، آزمایشی به صورت کرتهای خردشده بر پایه طرح بلوکهای کامل تصادفی با سه تکرار در دو سال زراعی 1385-1384 و 1386-1385 در مزرعه تحقیقاتی دانشکده کشاورزی دانشگاه فردوسی مشهد به اجرا درآمد. تیمارهای مورد بررسی دو منبع کود دامی و...

Journal: :چغندرقند 0
امیر نورجو عضو هیئت علمی بخش تحقیقات فنی و مهندسی کشاورزی مرکز تحقیقات کشاورزی آذربایجانغربی مهدی بقایی کیا کارشناس بخش تحقیقات چغندرقند مرکز تحقیقات کشاورزی آذربایجانغربی

water stress decrease water content and water potential between soil and root. therefore, water potential  of plant declines and plant faces with water stress. water stress in different stages of growth can be useful in different aspects. water stress can be practiced from two point of view, increasing water use efficiency (wue) and improving cultural practices. no irrigation in insensitive sta...

2002
Claudia Feijoó María Eugenia García Fernando Momo Julia Toja

The relative importance of phosphorus and nitrogen absorption fkom water and sediments by Egeria densa Planch. (Hydrocharitaceae), a subinerged macropliyte very common in Pampean streams in Argentina, was experiiiientally assesced. Two experiments were performed to determine the importance of water as opposed to sediment cource of phosphorus, and to investigate the effect oftype of nitrogenouc ...

Journal: :تولید گیاهان زراعی 0
عبدالرحیم صفریان دانشجوی سابق کارشناسی ارشد دانشگاه شهید باهنر کرمان روح اله عبدالشاهی استادیار دانشگاه شهید باهنر کرمان

water use efficiency is positively correlated with grain yield, and being used for indirect selection of high wheat yield in drought prone environments. yet little is known about genetic control of water use efficiency. in this research, a half diallel mating design was generated from crosses between 8 bread wheat to study the genetic of water use efficiency. parents and f1 progenies were plant...

Journal: :physiology and pharmacology 0
nahid sarahian dept. of biology, islamic azad university, north tehran branch, tehran, iran hedayat sahraei neuroscience research center, baqiyatallah (a.s.) university of medical sciences, tehran, iran homeira zardooz dept. of physiology, school of medicine, shahid beheshti university of medical sciences, tehran, iran hengameh ali-beik dept. of biology, islamic azad university, north tehran branch, tehran, iran bahareh sadeghi dept. of biology, islamic azad university, north tehran branch, tehran, iran taherehsadat javadifar neuroscience research center, baqiyatallah (a.s.) university of medical sciences, tehran, iran

introduction: in this study, the effect of memantine administration into the nucleus accumbens on the metabolic changes induced by acute stress in female mice was evaluated. methods: intra-accumbens unilateral or bilateral canulation was performed. one week after recovery, a group of animals were given memantine (1, 0.5, and 0.1 μg/mouse) five min before stress induction intra-accumbally, and t...

Journal: :به زراعی کشاورزی 0
فرخ امیدی دانشجوی کارشناسی ارشد، گروه زراعت و اصلاح نباتات، دانشکدۀ کشاورزی، دانشگاه بوعلی سینا، همدان، ایران علی سپهری استادیار، گروه زراعت و اصلاح نباتات، دانشکدۀ کشاورزی، دانشگاه بوعلی سینا، همدان، ایران

in order to study of sodium nitroprusside(snp) application effect on growth indices and water use efficiency of kidney beans cultivars(akhtar and derakhshan) under water deficit stress, an experiment was conducted in split factorial based in randomized complete block design with three replications in bu-ali sina university research field at 2012. water stress treatments included vegetative stre...

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