نتایج جستجو برای: sffron deficit irrigation

تعداد نتایج: 104130  

Journal: :حفاظت گیاهان 0
عمواقلی طبری عمواقلی طبری قهاری قهاری عرب زاده عرب زاده

abstract water is a main factor in production of crops. optimizing the usage of water is essential especially in iran which is a dry and semi-dry country. investigation on the effect of different irrigation treatments on chilo suppressalis walker (lep.: crambidae), as the most destructive rice pest, can be an efficient strategy in optimizing usage of water in integrated crop management (icm). i...

Journal: :اقتصاد و توسعه کشاورزی 0
فلسفی زاده فلسفی زاده صبوحی صابونی صبوحی صابونی

abstract in current study, an irrigation examination and acquisition of environmental water in kor-river fields, that is dominated from doroudzan dam to bakhtegan lake, was done by an integrated economy-environmental model. the model was considered by economic, hydrologic and agronomic components. in the economic component, an optimal harvesting of water was done using non-linear programming in...

Biofertilizers included solid, liquid or semi-solid materials that contain one or several microorganism species developing plants root system leads to better uptake of water and nutrients resulting in the further growth of the plant. To evaluate the accumulation of nutrients in leaf and biomass production of pot marigold (Calendula officinalis L.), a factorial experiment was conducted based on ...

Arash Roozbahani, Mohammad Reza Akhavan Mohseni Saeed Reza Yaghoobi

This research was conducted to evaluate effect of potassium and iron fertilizers on agro-physiological traits affected different irrigation regime of corn in Shahryar (Tehran province, central of Iran) via a split-split plots arrangement based on randomized complete blocks design with three replications during 2015. The main plot included different irrigation regime (Normal irrigation and stop ...

Journal: :Plant physiology 2007
John J Burke

Water-deficit stresses preferentially reduce shoot growth, thereby disrupting the flow of carbohydrates from source leaves to the developing sinks. Here, we use a novel stress bioassay to dissect responses of field and greenhouse-grown cotton (Gossypium hirsutum) source leaves to water-deficit stresses. Fifth main stem leaf samples were harvested at sunrise and subjected to a prolonged elevated...

Journal: :به زراعی کشاورزی 0
داریوش رمضان دانشجوی دکتری فیزیولوژی و اصلاح سبزی گروه علوم باغبانی، دانشکده علوم کشاورزی، دانشگاه گیلان، رشت - ایران معظم حسن پور اصیل استاد گروه علوم باغبانی، دانشکده کشاورزی، دانشگاه گیلان، رشت - ایران رضا صالحی استادیار گروه علوم باغبانی، پردیس کشاورزی و منابع طبیعی، دانشگاه تهران، کرج - ایران حسین دهقانی سانیچ دانشیارآبیاری و زهکشی، مؤسسه تحقیقات فنی و مهندسی کشاورزی، کرج - ایران

the effects of grafting under conditions of deficit irrigation, on content of minerals leaf and root, evalutate in a field experiment under deficit irrigation was conducted with split plot in a randomized complete block design with three replications, in the research field of higher education institution imam khomeini (ra) under the ministry of agriculture in karaj, during 2014. in this study, ...

2014
Mohamed M. Hussein Ashok K. Alva M. M. Hussein A. K. Alva

Drought stress (DS) is an important limiting factor for crop growth and production in some regions of the world. Limitation in water availability precludes optimal irrigation in some production regions. Therefore, investigations on the interaction of other factors to mitigate the DS to varying degree are important. Two field experiments were conducted in the experimental farm of the National Re...

A. Nezami, A. Nouri D. Hassanpanah M. Kafi

In Ardabil region potato crop needs several irrigation, however ground water supplies arebeing exhausted due to reduced precipitation and intensive irrigation. In this research droughttolerance of 10 commercial potato cultivars was studied at three irrigation treatments (100%,80% and 60% of required irrigation water) in Ardabil in a two years field study, 2013-2014.At harvest, marketable tuber ...

Journal: :علوم باغبانی 0
فاطمه سادات میری علی شاهنظری میرخالق ضیاء تبار احمدی حسینعلی زبردست رستمی

awareness of the effects of water deficit on quality and quantity yield of orange is essential for product managing at water shortage conditions. in this regard, present study was conducted in an orange garden of babol area in 2011 in a completely randomized design with 5 treatments and 5 replications. experiment treatments included full irrigation (fi), regulated deficit irrigation (rdi) and p...

زندپارسا, شاهرخ , سلطانی, غلامرضا , سپاس‌خواه, علیرضا ,

In this study, the optimum irrigation depths for corn grain production under different conditions, i.e. maximum grain yield production and maximum benefit under limited land and water conditions, were determined under sprinkler irrigation in Bajgah (15 km. north of Shiraz). The results showed that, the optimum depth of irrigation for maximum grain yield production was 77.0 cm. Because of low pr...

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