نتایج جستجو برای: echinops lasiolepis
تعداد نتایج: 1141 فیلتر نتایج به سال:
the present survey deals with the floristic study of dalab woodlands, located in manesht and ghelarang protected area, western iran. it covers an area of 4335 ha. in total, 224 vascular plant species belonging to 46 families and 156 genera were identified. the largest families are asteraceae (29 species), fabaceae (23 species), poaceae (22 species), and apiaceae (18 species). astragalus (13 spe...
چرای دام از مراتع میتواند منجر به تغییر ترکیب پوشش گیاهی شود. در این تحقیق اثر چهار شدت مختلف چرایی سنگین، متوسط، سبک و قرق (بدون چرا) بر شاخصهای پوشش گیاهی به منظور اصلاح شیوههای مدیریتی و برنامهریزی مناسب جهت بهرهبرداری پایدار از مراتع در منطقه کرسنک و بارده استان چهارمحال و بختیاری مورد بررسی قرار گرفت. بدین منظور نمونهبرداری از پوشش گیاهی به صورت ثبت درصد تاج پوشش گونههای گیاهی در شد...
The conservation of medicinal plants, particularly endangered or endemic species, is the utmost importance, especially in light inevitable climate change and its consequences. Species inhabiting high altitudes adopt exceptional defense mechanisms response to abiotic stresses as a survival strategy. objective current study was investigate effects altitudinal variations on secondary metabolite ac...
The Tijuana River Valley is the first natural habitat in California to be substantially invaded by the Kuroshio Shot Hole Borer (KSHB, Euwallacea sp.), an ambrosia beetle native to Southeast Asia. This paper documents the distribution of the KSHB in the riparian vegetation in the valley and assesses the damage done to the vegetation as of early 2016, approximately six months after the beetle wa...
The patterning and growth of the embryonic vertebrate limb is dependent on Sonic hedgehog (Shh), a morphogen that regulates the activity of Gli transcription factors. However, Shh expression is not observed during the first 12 hr of limb development. During this phase, the limb bud is prepatterned into anterior and posterior regions through the antagonistic actions of transcription factors Gli3...
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