نتایج جستجو برای: static and dynamic deficit irrigation

تعداد نتایج: 16914060  

Salicylic acid is an important signal molecule modulating plant responses to abiotic (drought) stresses. A pot factorial experiment based on completely randomized design with three replications was carried out to investigate the effect of salicylic acid on yield and essential oil content of fenugreek under water deficit conditions. Factors were two irrigation levels (50 and 100% of field capaci...

Bijan Goodarzi, Maryam Mazidi, Siavash Rajabi,

Introduction: One of the most important human senses is vision, which its loss is causing many primary and secondary complications for physical and psychological health such as difficulties in static and dynamic balance. This study aimed to compare the effect of 8 weeks of Spark and Frenkel exercises training on the static and dynamic balance in blind people. ...

In this paper, to cope with the stochastic dynamic (or multi-period) problem, two new quadratic assignment-based mathematical models corresponding to the dynamic and static approaches are developed. The product demands are presumed to be dependent uncertain variables with normal distribution having known expectation, variance, and covariance that change from one period to the next one, randomly...

رضایی, محمد, سرخی لله لو, بهزاد, مجیدی, عزیز, محمدی, سلیمان,

Identification and introduce of high potential and water deficit stress tolerant is one of effective methods that caused to economic production beside other methods of water deficit management. In order to identification of barley lines, 9 barley elite lines and Bahman variety (check) studied under full irrigation and water deficit stress conditions in season cropping years 2013-2015. The resul...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه لرستان - دانشکده ادبیات 1394

abstract the purpose of this study was to find out the effect of applying the principles of group-dynamic assessment (g-da) on learning of conditional structures in english by iranian efl learners at the intermediate level, which according to the formal educational system in iran, includes students who are in their second year of studying in high schools of koohdasht city. this study was a qua...

Journal: :به زراعی کشاورزی 0
زهرا مهرابی زاده دانشجوی کارشناسی ارشد، گروه زراعت و اصلاح نباتات، دانشکده کشاورزی، دانشگاه صنعتی اصفهان، اصفهان پرویز احسان زاده دانشیار، گروه زراعت و اصلاح نباتات، دانشکده کشاورزی، دانشگاه صنعتی اصفهان، اصفهان

sesame could be an appropriate oilseed crop for water limited environments. this research was aimed at studying growth, leaf chlorophyll fluorescence, proline content, yield and yield components of sesame cultivars under different moisture regimes. a 4-replicate split plot rcbd field experiment was conducted at the lavark research farm, college of agriculture, isfahan university of technology, ...

Journal: :بوم شناسی کشاورزی 0
بهروز اسماعیل پور منصور اکبری

deficit irrigation is an essential optimization method for water consumption in irrigated lands. in order to investigate the effects of deficit irrigation on growth, yield and quality traits of two tomato (lycopersicon esculentum mill.) cultivars a factorial layout based on randomized complete block design with three replications was conducted in agricultural research station of miandoab during...

Journal: :بوم شناسی کشاورزی 0
بی بی الهه موسوی فر محمدعلی بهدانی مجید جامی الاحمدی محمد سعید حسینی بجد

deficit of oil seeds and high volume of oil imports in iran, and limitation of water sources against production of many oil seed crops, demonstrate the importance of detection tolerant species and cultivars for stressful conditions and their most sensitive growth stages to saline stress. in order to study response of spring safflowers (carthamus tinctorius l.) genotypes to disruption irrigation...

Journal: :تحقیقات مهندسی کشاورزی 0
علیرضا کیانی استادیار پژوهش بخش تحقیقات فنی و مهندسی مرکز تحقیقات کشاورزی و منابع طبیعی استان گلستان

water shortage in the agricultural sector is currently a major challenge in crop production. the more efficient water usage is that which increases yield without increasing water use. thus, a determination of the water-yield relationship is essential. a field study was conducted to examine water-yield relations in three genotypes of soybeans, including optimum irrigation depth, a comparison of ...

Journal: :پژوهش های کاربردی زراعی (زراعت سابق) 0
مهدی سرائی تبریزی دانشجوی دکتری آبیاری و زهکشی، دانشگاه آزاد اسلامی، واحد علوم و تحقیقات تهران، گروه مهندسی آب، تهران، ایران مسعود پارسی نژاد دانشیار گروه مهندسی آبیاری و آبادانی، پردیس کشاورزی و منابع طبیعی، دانشگاه تهران، کرج حسین بابازاده استادیار دانشگاه آزاد اسلامی، واحد علوم و تحقیقات تهران، گروه مهندسی آب، تهران

present limitations on available water resources especially for use in agriculture sector, shows that more attention to irrigation water management is inevitable. deficit irrigation is a practice to improve use of unit volume of water. in this research, efficacy of cropwat 8.0 model was evaluated against field data under deficit irrigation management on soybean in karaj. in 2008 and 2009 agrono...

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