نتایج جستجو برای: 2002technical efficiency of sugar beet producers were estimated using cobb

تعداد نتایج: 21470834  

Journal: :چغندرقند 0
جواد گوهری هیئت علمی مؤسسه تحقیقات چغندرقند منصور مصباح هیئت علمی مؤسسه تحقیقات چغندرقند سعید صادق زاده حمایتی هیئت علمی مؤسسه تحقیقات چغندرقند فرحناز حمدی مدیر داخلی مجله چغندرقند

monogerm and multigerm seed varieties are used in sugar beet cultivation. singling is inevitable and mechanization almost impossible when multigerm seed varieties are used. for this and for some other reasons, economically sound and fully mechanized cultivation of sugar beet calls for the use of monogerm seed varieties. throughout europe, only monogerm varieties are used in sugar beet productio...

Journal: :پژوهش های زراعی ایران 0
علیرضا کوچکی مهدی نصیری محلاتی هادی زرقانی علی نوروزیان

introduction intercropping plays an important role in agriculture because of beneficial interactions. intercropping of legumes and cereals is an old practice in tropical agriculture dating back to ancient civilization. cereals and other plant intercrops could substantially increase forage quantity and quality and decrease the requirement for protein supplements. intercropping of cereals and oth...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه کاشان - دانشکده علوم انسانی 1389

abstract this study aimed at analyzing a corpus of emails gathered from iranian students studying in england. the corpus contained 996 emails that were investigated by employing the framework of chen (2006) to find common patterns in the discourse of these emails. another aim of the study was to find how two request acts (want statements and query preparatory) were used in the emails. the...

Azad ahmadi Behroz Aminzadeh Mohammad Reza Najafian Gorgi Moslem Torkiharchegani,

Climate is one of the most important factors that influence the quality and quantity of crops. Understanding the natural features of any region, especially about the climate, can play a major role in making plans and land use planning. Sugar beet, is one of the major industrial plants, that in addition to producing one of the most fundamental basic needs of society, namely sugar, it can have ot...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه گیلان - دانشکده علوم کشاورزی 1391

در این تحقیق، تنوع ژنتیکی جمعیت آرتمیا اورمیانا و آرتمیا فرانسیسکانا ی موجود در ایران با استفاده از 5 جفت آغازگر ریزماهواره ای (af-b105tail، af-a136، apdq03tail، apdq04tail و apdq05tail) ویژه ی آرتمیا فرانسیسکانا و آرتمیا پارتنوژنتیکا بررسی شد. از 50 سیست آرتمیا ی هر یک از این دو جمعیت به صورت انفرادی dna با روش گلوله ی داغ استخراج شد. با استفاده از آغازگر ها ی پنج گانه و از طریق واکنش زنجیره ا...

Journal: :Acta biochimica Polonica 2014
Magdalena Klimek-Chodacka Rafal Baranski

Hairy root cultures obtained after Agrobacterium rhizogenes-mediated genetic transformation can serve as a model system for studying plant metabolism and physiology, or can be utilized for the production of secondary metabolites. So far no efficient protocol of hairy root development in sugar beet has been publically released. In this work, two A. rhizogenes strains (A4T and LBA1334) carrying a...

Journal: :چغندرقند 0
بابک بابائی مربی موسسه تحقیقات چغندرقند پیمان نوروزی دانشیار مؤسسه تحقیقات چغندرقند

ethanol is a clean and renewable energy source. the necessity of ethanol usage, instead of fossil fuels or mixed with them, in order to reduce environmental pollution resulted in increase of ethanol production from 50 million m-3  in 2007 to 85 million  m-3 in 2012. the present study aimed to compare the cost of bio-ethanol production from sugar beet with other agricultural crops, and also econ...

Journal: :Journal of animal science 2003
J M Richardson R G Wilkinson L A Sinclair

The objective of the current series of experiments was to assess the effects of dietary synchrony of OM and N supply to the rumen, achieved by altering the sequence of feeding individual ingredients and in diets with different energy sources, on the metabolism and performance of growing lambs. In Exp. 1, the in situ degradability coefficients of OM and N were determined for five feed ingredient...

ژورنال: علوم آب و خاک 2000
ترکمانی, جواد ,

The main objective of the present study was to investigate the production and marketing of Iranian saffron. About 99% of Iranian saffron is produced in Khorasan Province. Therefore, Khorasan was selected for the current study. Data were collected through the stratified random sampling method from 232 saffron producers in Torbat Heidarieh, Ghaenat and Gonabad regions through interviews in fall 1...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه رازی - دانشکده علوم 1389

fluorescence chemical sensors for the highly sensitive and selective determination of pb2+ , hg2+, co2+ and fe3+ ions in aqueous solutions are described. the ion sensing system was prepared by incorporating lipophilic ligand (l) as a neutral ion-selective fluoroionophore in the plasticized pvc membrane containing sodium tetraphenylborate or potasium tetrakis (p-chlorophenyl) borate as a liphoph...

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