نتایج جستجو برای: bromus sewerzowii
تعداد نتایج: 1400 فیلتر نتایج به سال:
PREMISE OF THE STUDY Bromus tectorum (Poaceae) is an annual grass species that is invasive in many areas of the world but most especially in the U.S. Intermountain West. Single-nucleotide polymorphism (SNP) markers were developed for use in investigating the geospatial and ecological diversity of B. tectorum in the Intermountain West to better understand the mechanisms behind its successful inv...
We conducted a phylogenetic analysis to characterize relationships among Bromus and test the monophyly of five of the seven morphologically distinct groups within Bromus (Poaceae: Pooideae) that have been treated as sections, subgenera, or genera. We sequenced the chloroplast trnL (UAA) intron, the 3!-end of the chloroplast ndhF gene, and the internal transcribed spacers (ITS) of the nuclear ri...
Improved understanding of the spatial dynamics of invasive plant species may lead to more effective land management and reduced future invasion. Here, we identified the spatial extents of nonnative cheatgrass (Bromus tectorum) in the north central Great Basin using remotely sensed data from Landsat MSS, TM, and ETM+. We compared cheatgrass extents in 1973 and 2001 to six spatially explicit land...
A Mojave Desert shrub community was experimentally burned to understand changes in seed bank of desert annual plant species in response to wildfire. Seed mortality ranged from 55 to 80%, and fire caused significant losses of native and alien annual seeds. Schismus arabicus, Schismus barbatus, Bromus madritensis, Bromus tectorum, Erodium cicutarium and Plantago spp. made up >95% of the seed bank...
Evaluation of Genetic Variation and Simultaneous Selection for Seed Forage Yield in Selected Genotypes Dactylis glomerata Bromus inermis
Cytogenetic and Nuclear DNA Content Characterization of Diploid Bromus erectus and Bromus variegatus
بخش triniusa از جنس bromus در خراسان براساس مفاهیم جدید آرایه شناختی کمپلکس bromus danthoniaeو جمع آوری نمونه های هرباریومی قابل توجه از حوزه خراسان-کپه داغ در شمال شرق ایران، به عنوان مرکز اصلی تنوع این بخش، مورد بازنگری قرار گرفته است. گونه اندمیک bromus turcomanicus در کپه داغ مرکزی که تاکنون فقط از محل تیپ در جنوب ترکمنستان شناخته شده است، به عنوان گزارشی جدید برای فلور ایران معرفی می شود. ...
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