نتایج جستجو برای: elymus pertenuis
تعداد نتایج: 471 فیلتر نتایج به سال:
Seagrass meadows play an important role in marine ecosystems. A part of seagrass production is also exported to adjacent coastal terrestrial systems, possibly influencing their functioning. In this work we experimentally analyzed the effect of Posidonia oceanica beach-cast on plant germination, growth, and nutrient uptake of two plant species (Cakile maritima and Elymus farctus) that grow on up...
The grass tribe Triticeae (=Hordeeae) comprises only about 300 species, but it is well known for the economically important crop plants wheat, barley, and rye. The group is also recognized as a fascinating example of evolutionary complexity, with a history shaped by numerous events of auto- and allopolyploidy and apparent introgression involving diploids and polyploids. The genus Elymus compris...
Triticeae contains hundreds of species of both annual and perennial types. Although substantial genomic tools are available for annual Triticeae cereals such as wheat and barley, the perennial Triticeae lack sufficient genomic resources for genetic mapping or diversity research. To increase the amount of sequence information available in the perennial Triticeae, three expressed sequence tag (ES...
Origin and evolution of tetraploid Elymus fibrosus (Schrenk) Tzvelev were characterized using low-copy nuclear gene Rpb2 (the second largest subunit of RNA polymerase II), and chloroplast region trnL-trnF (spacer between the tRNA Leu (UAA) gene and the tRNA-Phe (GAA) gene). Ten accessions of E. fibrosus along with 19 Elymus species with StH genomic constitution and diploid species in the tribe ...
We present recent results from observations of binary and multiple systems made with the Navy Precision Optical Interferometer (NPOI) on ζ and σ Orionis A, ξ Tauri, HR 6493, and b Persei. We explain how the orbital modeling is performed and show that even triple systems can be constrained with the data.
گونه Elymus transhyrcanus گونه‌ای متنوع در ایران است. جمعیت‌های بالشتکی و ریزوم دار این گونه در سلسه جبال البرز یافت می‌گردد. رویشگاهی منفک از گسترشگاه شناخته شده این گونه در غرب ایران تشخیص داده می‌شود. آزمون‌های دورگه‌گیری بین اشکال مختلف از نقطه نظر ریختی و جغرافیایی به عمل آمد. علی رغم وجود اختلاف در ریخت ظاهری جمعیت‌های شمال شامل بالشتکی و یا غیر بالشتکی، دورگه‌های بین آنها دارای دانه‌های...
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