نتایج جستجو برای: sugar beet yield

تعداد نتایج: 239525  

2007
H. Panagiotou N. Maslaris V. Petridis L. Petrou

In this paper we present several multiple model combination methods, utilizing neural as well as linear predictors, to predict sugar beet crop yield. The results are superior to previous prediction methods which used only neural network or only linear regresison predictors. Abstract. Key Words.

Journal: :Nitrogen 2022

Sugar beet fertilization is a very complex agrotechnical measure for farmers. The main reason that technological quality equally important as sugar yield, but the increment of root yield does not follow quality. Technological implies concentration sucrose in and possibility its extraction production white table sugar. great variability agroecological factors directly affect are possible good ag...

Considering the effect of salinity stress on the quantitative and qualitative traits of sugar beet genotypes, it seems necessary to study the response of genotypes obtained from breeding programs to salinity stress. For this purpose, 17 full-sib genotypes (derived from sibling crossing) with 7 different tolerant control under two salinity stress (electrical conductivity 17.36 dsm) and without s...

Journal: :چغندرقند 0

sustainable agriculture for producing food is not possible without optimal use of water resources. because of the limitation of water resources, deficit irrigation would be essential to increase water productivity. in order to evaluate the effects of deficit irrigation on quality and quantity of sugar beet, an experiment was carried out in a farm in miandoab agricultural research station for 2 ...

Journal: :چغندرقند 0
مهدی شهابی فر دکترای علوم و مهندسی آبیاری از دانشگاه تربیت مدرس ، عضو هیئت علمی و رئیس بخش تحقیقات آبیاری و فیزیک خاک مؤسسه تحقیقات خاک مهدی کوچک زاده عضو هیئت علمی گروه آبیاری دانشگاه تربیت مدرس محسن محمدزاده عضو هیئت علمی گروه آمار دانشگاه تربیت مدرس سید مجید میرلطیفی عضو هیئت علمی گروه آبیاری دانشگاه تربیت مدرس

for the purposed water resources management, irrigation scheduling, water usage optimization and gaining maximum yield two step fao method was applied to determine the water requirement (evapotranspiration) of sugar beet.  in this paper reference evapotranspiration were computed from recorded meteorological data at 38 weather stations using the hargreaves-samani method; and then through applyin...

Journal: :Water 2022

Crop-yield models based on vegetation indices such as the normalized difference index (NDVI) have been developed to monitor crop yield at higher spatial and temporal resolutions compared agricultural statistical data. We evaluated model performance of NDVI-based random forest for sugar beet potato farm yields in northern Belgium during 2016–2018. also whether weather variables root-zone soil wa...

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: :Plant physiology 1983
N Aharoni S F Yang

Exogenously supplied indole-3-acetic acid (IAA) stimulated ethylene production in tobacco (Nicotiana glauca) leaf discs but not in those of sugar beet (Beta vulgaris L.). The stimulatory effect of IAA in tobacco was relatively small during the first 24 hours of incubation but became greater during the next 24 hours. It was found that leaf discs of these two species metabolized [1-(14)C]IAA quit...

Journal: :چغندرقند 0
محمدعلی جوا هری اعضاء هیئت علمی مرکز تحقیقات کشاورزی و منابع طبیعی استان کرمان

in order to study the effects of farm yard manure (fym), sulfate of potassium (sop) and boric acid on quality and quantity of sugar beet, an experiment was conducted in split plot factorial with four replications during 3 years (1999-2001) in bardsir- kerman. the fym was the main plot in 3 levels: 0, 10 and 20 ton.ha-1. sop was applied at levels, 0 ,75 and 150 kg.ha-1  and boric acid at levels ...

Journal: :علوم گیاهان زراعی ایران 0
محسن نیازیان دانشجوی سابق کارشناسی ارشد پردیس ابوریحان، دانشگاه تهران رضا امیری دانشیار پردیس ابوریحان، دانشگاه تهران اباذر رجبی محقق مؤسسه تحقیقات اصلاح و تهیه بذر چغندرقند کرج محمدرضا اوراضی زاده محقق مؤسسه تحقیقات اصلاح و تهیه بذر چغندرقند کرج حمید شریفی محقق مرکز تحقیقات کشاورزی صفی آباد دزفول

to evaluate general and specific combining ability for resistance to bolting and cercospora leaf spot, 36 hybrids derived from crosses between 9 sugar beet lines along with four checks were planted in safiabad agricultural research center (dezful) in 2008-2009. the experimental design was a triple lattice design with three replications. analysis of variance showed significant differences among ...

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