نتایج جستجو برای: evaluation of diversity

تعداد نتایج: 21212557  

Estimation of genetic diversity and evaluation of plant germplasm is the most important step in collection and management of plant genetic resources. Also, comparison of different DNA-based genetic markers in diversity evaluation and then advising the most efficient markers is very important. In order to investigate genetic variation among Persian oak (Quercus brantii Lindi.) populations of Lor...

Luffa (Luffa cylindrica) is a plant from the Cucurbitaceae family that grows mostly in tropical and subtropical regions, as well as in most regions of Iran. In this research, the genetic diversity of nine native and non-native genotypes of L. cylindrica was investigated through the evaluation of the chloroplast trnH-psbA intergenic region (IGS). After sampling the young leaves, DNA extraction w...

Journal: :journal of medicinal plants and by-products 0

there is substantial diversity in achillea biebersteinii plants in iran. it has considerable different biological activities including antibacterial, antifungal, antioxidant, insecticidal, herbicidal and wound healing. research improvement for medicinal plants depends on the available genetic diversity. the assessment of genetic variability could increase the information for breeding programs. ...

Journal: :SA Journal of Human Resource Management 2004

2004
Ian R. Swingland

biodiversity/biological diversity Species, genetic, and ecosystem diversity in an area, sometimes including associated abiotic components such as landscape features, drainage systems, and climate. diversity indices Measures that describe the different components of biodiversity, such as species richness (alpha diversity), beta and gamma diversity, endemicity, and higher taxon richness. ecosyste...

Journal: :علوم گیاهان زراعی ایران 0
محمدحسین حسنی دانشجوی کارشناسی ارشد دانشگاه آزاد اسلامی واحد علوم و تحقیقات تهران سپیده ترابی استادیار دانشگاه آزاد اسلامی واحد علوم و تحقیقات تهران منصور امیدی استاد پردیس کشاورزی و منابع طبیعی دانشگاه تهران علیرضا اطمینان دانشجوی دکتری دانشگاه آزاد اسلامی واحد علوم و تحقیقات تهران ترانه دستمالچی دانشجوی کارشناسی ارشد دانشگاه آزاد اسلامی واحد علوم و تحقیقات تهران

in this study, genetic diversity of 30 accessions of the fennel from different cities of iran and other asian and european countries were assessed by using 20 selective aflp primers. totally, from 1127 observed bands, 250 bands were polymorph. e11-m20 primer with 20 bands, also e46-m35 and etg-m20 primers with 8 bands indicated the maximum and minimum numbers of polymorphism, respectively. acco...

Atefeh Sabouri, Sedigheh Mousanejad Zeinab Mohammadi,

Association analysis is a useful method for evaluation of significant association between molecular marker and phenotype of trait. This study was performed to evaluate association between traits related with powdery mildew resistance and molecular markers. This investigation was performed using 77 barley genotypes and AFLP markers. In phenotypic evaluation, reaction of seedlings to powdery mild...

Ahmadi, Hadi, Dowlatshah, Ali, Goudarzi, Daryoush, Ismaili, Ahmad, Khademi, Karim,

Plant breeding researches is based on genetic diversity and evaluation of genetic diversity is also one of the most important steps in introduction of new cultivars. In this study, genetic diversity of 25 grass pea genotypes was studied based on randomized complete block design with three replicates in Khorramabad (Iran). Analysis of variance showed significant differences among genotypes for m...

2004
Hideaki SHIBATA Akira OGAWA Takaya YAMAZATO

This paper is concerned with the performance evaluation for the diversity decoding scheme in which space diversity technique and iterative decoding for non systematic convolutional error-correcting code are effectively combined. The concept of the diversity decoding is applied to an OFDM system (e.g. the digital terrestrial TV broadcasting system). This paper shows the performance evaluation fo...

صفری, سارا, مهرابی, علی اشرف,

Limited geographic area and focused modification of rapeseed during of its breeding cases have been led to the limited genetic basis. So, the evaluation of genetic diversity in modern cultivars of canola to estimating and maintain of genetic resources is essential. In this study, the genetic diversity of 45 genotypes of rapeseed was investigated using 12 RAPD markers .Cluster analysis by Dice c...

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