نتایج جستجو برای: morphological diversity

تعداد نتایج: 309028  

Journal: :SIAM J. Imaging Sciences 2010
Gabriel Peyré Mohamed-Jalal Fadili Jean-Luc Starck

This article proposes a new method for image separation into a linear combination of morphological components. Sparsity in global dictionaries is used to extract the cartoon and oscillating content of the image. Complicated texture patterns are extracted by learning adapted local dictionaries that sparsify patches in the image. These global and local sparsity priors together with the data fidel...

Journal: :journal of ornamental plants 2015
m. ranjbar m. nasr esfahani moh. nasr esfahani s. salehi

the phenotypic diversity of potato, solanum tuberosum was assessed using morphological traits. to verify, how this diversity is distributed among the main potato varieties in the growing areas in iran. a total of eleven potato varieties, ramose, sante, shepody, marfona, maradona, milova, santana, boren, cosima, granola and agria, were evaluated under vivo and situ experimental conditions in isf...

Journal: :Evolution; international journal of organic evolution 2006
David C Collar Peter C Wainwright

Morphological diversity is routinely used to infer ecological variation among species because differences in form underlie variation in functional performance of ecological tasks like capturing prey, avoiding predators, or defending territories. However, many functions have complex morphological bases that can weaken associations between morphological and functional diversification. We investig...

Comparing different methods of estimating the genetic diversity could define their usefulness in plant breeding programs. In this study, a total of 18 morphological traits and 20 simple sequence repeat (SSR) loci were used to study the morphological and genetic diversity among 20 maize hybrids selected from different countries, and to classify the hybrids into groups based on molecular profiles...

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: :علوم گیاهان زراعی ایران 0
شکیبا شاهمرادی دانشجوی دکتری، پردیس کشاورزی و منابع طبیعی دانشگاه تهران محمدرضا چایی چی دانشیار پردیس کشاورزی و منابع طبیعی دانشگاه تهران جواد مظفری دانشیار، موسسه تحقیقات اصلاح و تهیه نهال و بذر. داریوش مظاهری استاد ، پردیس کشاورزی و منابع طبیعی دانشگاه تهران فرزاد شریف زاده دانشیار پردیس کشاورزی و منابع طبیعی دانشگاه تهران

knowledge about genetic diversity is an essential step towards conservation of genetic resources and developing further strategies for plant improvement. the objective of this research was to evaluate the agronomical and morphological traits and determine the level of variation within wild barley ecotypes especially for acclimation traits. in this study 188 ecotypes of wild barley (hordeumspont...

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. ...

ژورنال: علوم آب و خاک 2009
راوش, رودابه, زرواگیس, جورج, شیران, بهروز, علوی, عزیزاله,

In this study, 45 Pleurotus isolates with a wide range of geographical origins (in five provinces of Iran: Isfahan, Chaharmahal Bakhtiary, Kohkiloye boyrahmad, Lorestan and Fars) were collected. A random amplified polymorphic DNA polymerase chain reaction (RAPD-PCR) was used to assess the genetic diversity in ten populations of the Pleurotus eryngii complex. The use of ten primers allowed the p...

Recognition of genetic reserves and desirable genes is the basis of breeding programs. So far, in Iran, due to the lack of recognition of genetic resources, a considerable breeding program has not been done on native plants. The study of the genetic diversity of violets as a native plant with ornamental and medicinal uses is the great importance in advancing the breeding goals of this plant. So...

راوش, رودابه, زرواگیس, جورج, شیران, بهروز, علوی, عزیزاله,

In this study, 45 Pleurotus isolates with a wide range of geographical origins (in five provinces of Iran: Isfahan, Chaharmahal Bakhtiary, Kohkiloye boyrahmad, Lorestan and Fars) were collected. A random amplified polymorphic DNA polymerase chain reaction (RAPD-PCR) was used to assess the genetic diversity in ten populations of the Pleurotus eryngii complex. The use of ten primers allowed the p...

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