نتایج جستجو برای: second grade date palm

تعداد نتایج: 919006  

2013
Ramadan A. Nasser Hamad A. Al-Mefarrej

This study was carried out in 2011 to investigate the suitability of date palm midribs (Phoenix dactelifera L.) as a lignocellulosic material for the production of wood-cement composite panels, in addition to enhancement their compatibility with cement using various pretreatments and chemical additives. Materials used for this study were midribs of fronds of different date palm varieties availa...

Journal: :iranian journal of biotechnology 2015
kheyreddine titouh lakhdar khelifi majda slaoui nazim boufis abdelkader morsli

background: in algeria, date palm is currently confronted to the bayoud disease. biotechnological tools such as protoplasts fusion can appear as an alternative to ensure rapid multiplication and improvement of this species.objectives: callogenesis induction in protoplasts isolated from embryogenic callus of three date palm cultivars.materials and methods: some factors influencing the isolation ...

Journal: :نامه انجمن حشره شناسی ایران 0
بهروز احسانی دانشجوی کارشناسی ارشد محمدرضا لشکری هیات علمی فریبا مظفریان هیات علمی محسن مهرپرور هیات علمی department of biodiversity, institute of science and high technology and environmental sciences, graduate university of advanced technology, kerman, iran

dubas bug, ommatissus lybicus de bergevin (hem.: tropiduchidae), is a key pest of date palms in iran.this pest was first reported on date palms in 1966 and has been established throughout the date producing regions in southern iran since. date palm is the only host plant of dubas bug. it attacks almost all date palm varieties, esp. mazafati variety in city of bam, kerman province and other vari...

Journal: :یافته های تحقیقاتی در گیاهان زراعی و باغی 0
عبدالامیر راهنما مؤسسه تحقیقات خرما و میوه های گرمسیری، اهواز

to determine the effects of different pollen types and suitable pollination time in medjhol date palm, an experiment was carried out with three pollen cultivars: ghaname, vardy and samesmave and two pollination times (1-3 days before or after spathe opening) during 2010-2011 in date palm and tropical fruit research institute in ahwaz. the results showed that the vardy pollen had the most signif...

2011
Amir Reza Sadrolhosseini Mohd Maarof Moksin Harrison Lau Lik Nang Monir Norozi W. Mahmood Mat Yunus Azmi Zakaria

In this study, optical and thermal properties of normal grade and winter grade palm oil biodiesel were investigated. Surface Plasmon Resonance and Photopyroelectric technique were used to evaluate the samples. The dispersion curve and thermal diffusivity were obtained. Consequently, the variation of refractive index, as a function of wavelength in normal grade biodiesel is faster than winter gr...

Journal: :پژوهش های علوم و صنایع غذایی ایران 0
m. jalali e. a. salehi m. h. haddad khodaparast

of a large amount of date palms cultivated and harvested in iran, only about 11 – 12 annual percent is used in food processing and packaging industries. due to the poorq uality of produced dates, it is regarded as waste and is mainly used as feed stocks. thus, through producing syrup and liquid sugar from date palm of low quality could be regarded as a new opportunity to convert waste dates to ...

Journal: :international journal of advanced design and manufacturing technology 0
mahmoud asadzadeh s.mohamad reza khalili reza eslami farsani siamak rafizadeh

in this research work, the effects of natural fibers such as date palm fiber (df) and jute fiber (jf) on bending properties of polypropylene (pp)/ ethylene–propylene–diene–monomer (epdm) thermoplastic elastomers are investigated. for this purpose, the date palm and jute fibers at five levels of fiber weight fractions (0, 5, 10, 20 and 30 wt. %) are utilized during composite fabrication. maleic ...

Journal: :علوم و تکنولوژی پلیمر 0
حامد غفارزاده زارع احمد غضنفری مقدم حسن هاشمی پور رفسنجانی

during the past two decades the use of lignocellouse fibers in reinforcing composites has attracted much research activities. in the present work, date palm fiber was used for production of composites compatible withliving environment. the fibers were pre-treated chemically to remove impurities. in order to verify and compare the effectiveness of the pretreatment methods, lignin, ash, moisture ...

The date palm bunch fading disorder/disease is one of the greatest challenges faced by date palm growers. In the present study, the effect of appropriate orchard management on some qualitative and quantitative features of date palm bunch was studied. For this purpose, two orchards of cv ‘Kabkab’ with a history of previous incidence were selected in two districts of Bushehr province; Tangestan a...

Background: In Algeria, date palm is currently confronted to the Bayoud disease. Biotechnological tools such as protoplasts fusion can appear as an alternative to ensure rapid multiplication and improvement of this species. Objectives: Callogenesis induction in protoplasts isolated from embryogenic callus of three date palm cultivars. Materials and Methods: Some factors influencing the isolatio...

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