نتایج جستجو برای: polygonaceae
تعداد نتایج: 525 فیلتر نتایج به سال:
Relationships within the Polygonaceae have been recently examined using rbcL sequences, with an emphasis on Polygonum and its segregates. Here we test these results with respect to Polygonum (sensu lato) with an expanded dataset, including additional species and gene regions. Specifically, we focus on inferring the relationships of Eupersicaria (Polygonum sect. Persicaria in many prior treatmen...
Pond populations in Cape Cod described as Persicaria puritanorum (≡ Polygonum puritanorum) have been treated by recent authors as a synonym of P. maculosa (≡ Polygonum persicaria) based on gross morphology. However, consistent differences in leaf and inflorescence features raise the question as to whether this is an extreme phenotype of P. maculosa, an ecotype of that species, or a distinct tax...
با مشاهده و شناسایی نمونه های هرباریوم مرکز تحقیقات کشاورزی و منابع طبیعی استان خراسان رضوی، گونه c. eriopodum bunge شناسایی و در اینجا به عنوان گزارش جدید از استان خراسان جنوبی منطقه زیرکوه قاین برای ایران معرفی می گردد. این گونه از نظر صفات تاکزونومی با همه گونه های calligonum در ایران تفاوت دارد.
The roots of Rumex nepalensis spreng (Family-Polygonaceae) were studied to fix the parameters for Pharmcognostical standards. The present investigation deals with the macrocopical characters of root as well as studies on some physical constants, behavior of powdered root on treatment with different chemical reagents and fluorescence characteristics on exposure to ultra -violet light. These stud...
It is generally accepted that dioecious plants occur more frequently in dry and nutrient-poor habitats, suggesting that abiotic stress factors could contribute to evolution of dioecy from hermaphrodite. Therefore, experimental investigations on the responses of subdioecious species, a special sexual system comprising male, female, and hermaphrodite plants, to abiotic stress factors could quanti...
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید