نتایج جستجو برای: second grade date palm

تعداد نتایج: 919006  

Journal: :Methods in molecular biology 2017
Lotfi Fki Olfa Chkir Walid Kriaa Ameni Nasri Emna Baklouti Raja B Masmoudi Alain Rival Noureddine Drira Bart Panis

Cryopreservation is the technology of choice not only for plant genetic resource preservation but also for virus eradication and for the efficient management of large-scale micropropagation. In this chapter, we describe three cryopreservation protocols (standard vitrification, droplet vitrification, and encapsulation vitrification) for date palm highly proliferating meristems that are initiated...

2011
Fawkeya A. Abbas Abdel-Monem Ateya

Column chromatography of the Egyptian date palm pollen, resulted in the isolation of estradiol, estrone among ten compounds from the hexane fraction. Also, besides rutin, additional four flavonoids from the ethyl acetate extract were isolated. HPLC analysis of the hexane fraction (using RFBDS C18 – isocratic acetonitrile /water 58:42) revealed the presence of estrone, estradiol and estriol comp...

Journal: :iranian journal of pharmaceutical research 0
mr shams ardekani m khanavi m hajimahmoodi m jahangiri a hadjiakhoondi

the genus phoenix is one of the most widely cultivated groups of palms around the world. the aim of this study was to determine the antioxidant activity and total phenolic compounds of 14 different varieties of date palm (phoenix dactylifera l., arecaceae) seed extracts with 5 solvents [water, methanol, methanol (50%), dmso, and water: methanol: acetone: formic acid (20:40:40:0.1)]. ferric redu...

2007
M. B. Ndaliman

The mechanical properties of medium carbon steel (0.36C) were investigated under two different quenching media (water and palm oil). The properties are: the strengths, impact and hardness of the material. The investigations centered on unheat treated, normalized; water and palm oil quenched, and tempered conditions. The tempering temperature is 200°C. An AISI steel of grade C1035 was used for c...

Journal: :China population and development studies 2022

Abstract Using data from various sources, this paper discusses the recently documented below replacement level fertility in India context of universality marriage girls, most which are arranged by parents, and increase their mean age at marriage, mainly due to decrease child marriage. There is virtually no divorce rate, cohabitation, or voluntary childlessness, except for some anecdotal evidenc...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2011
Toni Voelker

G lobally, vegetable oils are harvested from a handful of oil crops at an annual rate exceeding 100 million tons (1). Most oils are used for human or animal consumption, although a minor fraction is derivatized to oleochemicals. More recently, an increasing amount of vegetable oil is being diverted to the production of biodiesel [i.e., fatty acid (FA) methylesters], and is an attractive feedsto...

2009
M. A. Shaheen

Viability of fresh and stored pollen of date palm (Phoenix dactyllf.,.., L) was studied. Pollen samples were stored at room temperat. ture (25-30°C), under refrigeration (3-4°C)t..ln vivo test, pollen viability was determined'by percent fruit set. Results suggest that different storage conditions had no apparent effect on pollen viability as tested with acetoearmine. However, results of in vivo...

2014
Frédérique Aberlenc-Bertossi Karina Castillo Christine Tranchant-Dubreuil Emira Chérif Marco Ballardini Sabira Abdoulkader Muriel Gros-Balthazard Nathalie Chabrillange Sylvain Santoni Antonio Mercuri Jean-Christophe Pintaud

UNLABELLED PREMISE OF THE STUDY To complement existing sets of primarily dinucleotide microsatellite loci from noncoding sequences of date palm, we developed primers for tri- and hexanucleotide microsatellite loci identified within genes. Due to their conserved genomic locations, the primers should be useful in other palm taxa, and their utility was tested in seven other Phoenix species and ...

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