نتایج جستجو برای: diversity coefficient index

تعداد نتایج: 731304  

Journal: :علوم باغبانی ایران 0
ولی ربیعی دانشگاه زنجان، هیات علمی، دکترای باغبانی مینا سعادتی دانشجوی ارشد پردیس کشاورزی کرج رقیه عظیم خانی مربی دانشکده کشاورزی دانشگاه زنجان سجاد جعفری دانشجوی ارشد پردیس کشاورزی کرج سمیه محمدی دانشجوی سابق ارشد دانشگاه زنجان

pomegranate is an importantly popular fruit crop with iran the main center of its diversity throghout the world. the richest pomegranate genetic resources believed to exist in iran. the present investigation was carried out to study the genetic diversity of 15 genotypes of pomegranate in tarume zanjan making use of rapd markers. genomic dna was extracted from the plant,s leaf, and tested for th...

Hot pepper (Capsicum spp.) is an economically important spice widely cultivated and consumed in Ethiopia. In spite of its wide importance, there is no information available on the molecular genetic diversity of this crop. Cultivars characterization is an important link between the conservation and utilization of plant genetic resources in various breeding programs. Using five ISSR prim...

Journal: :Genetics and molecular research : GMR 2015
D X Chen L Y Li X Zhang Y Wang

Lonicera macranthoides is an important traditional Chinese herb. The lack of information regarding the genetic structure and genetic relationships among its cultivars has hindered the conservation and utilization of this resource. This study used start codon targeted markers to assess the genetic diversity and other genetic characteristics of five single-variety L. macranthoides populations in ...

Journal: :محیط زیست طبیعی 0
ساره حسینی دانشجوی دکتری جنگلداری دانشکده منابع طبیعی، دانشگاه علوم کشاورزی و منابع طبیعی ساری سید عطاء اله حسینی دانشیار گروه جنگلدای و اقتصاد جنگل دانشگاه تهران

in this study, species richness, evenness and vegetation biodiversity were investigated in stabilized and non-stabilized cut edge areas of chachkam district forest roads in sari forest of iran. 18 micro plots 1×1m (36 micro plots) were sampled to carry out this research on two cut edge areas. number of trees, shrubs and herbaceous were recorded in each micro-plot. significant difference was inv...

Journal: :محیط شناسی 0
منصور زیبایی آذر شیخ زین الدین

in this study an attempt has been made to empirically examine the relationship between biodiversity and economic growth using indicators of species diversity and income per capita as proxies for biodiversity and economic growth, respectively.also the effects of agricultural value added as a percentage of gdp, trade freedom index, exchange rate, population, percantage of land developed for agric...

2015
Punnida Techaruvichit Hajime Takahashi Mongkol Vesaratchavest Suwimon Keeratipibul Takashi Kuda Bon Kimura

24 Campylobacter jejuni is a common cause of the frequently reported foodborne diseases in 25 the developed and developing nations. This manuscript describes the development of multiple26 locus variable number tandem repeat analysis (MLVA) using capillary electrophoresis as a novel 27 typing method for microbial source tracking and epidemiological investigation of C. jejuni. 28 Among 36 tandem ...

Journal: :Applied and environmental microbiology 2015
Punnida Techaruvichit Hajime Takahashi Mongkol Vesaratchavest Suwimon Keeratipibul Takashi Kuda Bon Kimura

Campylobacter jejuni is a common cause of the frequently reported food-borne diseases in developed and developing nations. This study describes the development of multiple-locus variable-number tandem-repeat (VNTR) analysis (MLVA) using capillary electrophoresis as a novel typing method for microbial source tracking and epidemiological investigation of C. jejuni. Among 36 tandem repeat loci det...

Journal: :مجله بین المللی زیست و زیست پزشکی 0
emmanuel okrikata depafederal university wukari, taraba state, nigeria olajumoke anuoluwa yusuf depafederal university wukari, taraba state, nigeria

a field survey was conducted in wukari, taraba state to assess the diversity and abundance of insect species in selected habitats (residential, open field made up of grassland and an agroecosystem). sampling were done biweekly using light, pitfall and yellow pan traps set in 3 replicates, 30 m apart. insects recovered were wet preserved in 70% ethanol except butterflies and moths. representativ...

2006
MARLI A. RANAL DENISE GARCIA DE SANTANA

(How and why to measure the germination process?). In the last two centuries, papers have been published including measurements of the germination process. High diversity of mathematical expressions has made comparisons between papers and some times the interpretation of results difficult. Thus, in this paper is included a review about measurements of the germination process, with an analysis o...

2013
Gebriel M. Shamia

The Improved Generalized Diversity Index (IGDI) has been proposed as a tool that can be used to identify areas that have high conservation value and measure the ecological condition of an area. IGDI is based on the species relative abundances. This paper is concerned with particular attention is given to comparisons involving the MacArthur model of species abundances. The properties and perform...

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