نتایج جستجو برای: Centaurea pterocaula Trautv

تعداد نتایج: 1480  

هر دو گونه Centaurea pterocaula Trautv. و C. urvillei DC. subsp. deinacantha نوعی گل‌گندم هستند. هدف از این مطالعه تعیین ترکیب‌های شیمیایی در روغن‌های اسانسی گونه‌های مذکور برای استفاده در مواد غذایی، لوازم آرایشی- بهداشتی و دارویی بود. گیاهان C. urvillei و C. pterocaula در مرحله گلدهی از ارومیه (دره قاسملو) و زنجان در سال‌های 1389 و 1390 جمع‌آوری شدند. اندام‌های گیاه شامل ساقه و برگ و گل‌آذین ...

Journal: :iranian journal of chemistry and chemical engineering (ijcce) 2015
hakkı gökbel mehmet musa özcan ahmet duran mehmet hamurcu mustafa çelik

the mineral contents of centaura leave and seeds were determined by inductively coupled plasma-atomic emission spectroscopy (icp-aes). macro element concentrations (p, k, ca, mg and s) of samples were found at high levels. k was established at high level in both leave and seed samples of centaurea. while k contents of leaves changes between 7254.10 mg/kg (centaurea lycaonica) and 26396.36 mg/kg...

Ahmet Duran Hakkı Gökbel Mehmet Hamurcu Mehmet Musa Özcan, Mustafa Çelik Nurhan Uslu Tijana Demiral

The mineral contents of Centaura leave and seeds were determined by Inductively Coupled Plasma-Atomic Emission Spectroscopy (ICP-AES). Macro element concentrations (P, K, Ca, Mg and S) of samples were found at high levels. K was established at high level in both leave and seed samples of Centaurea. While K contents of leaves changes between 7254.10 mg/kg (Centaurea lycaonica) and 26396.36 m...

2002
JEFFREY S. DUKES

In a microcosm experiment, I tested how species composition, species richness, and community age affect the susceptibility of grassland communities to invasion by a noxious weed (Centaurea solstitialis L.). I also examined how these factors influenced Centaurea’s impact on the rest of the plant community. When grown in monoculture, eight species found in California’s grasslands differed widely ...

Journal: :The American naturalist 2012
Daniel Montesinos Gilberto Santiago Ragan M Callaway

Over the past 3 centuries, many species have been dispersed beyond their natural geographic limits by humans, but to our knowledge, reproductive isolation has not been demonstrated for such neo-allopatric species. We grew seeds from three species of Centaurea (Centaurea solstitialis, Centaurea calcitrapa, and Centaurea sulphurea) that are native to Spain and have been introduced into California...

Journal: :Food chemistry 2013
Abdurrahman Aktumsek Gokhan Zengin Gokalp Ozmen Guler Yavuz Selim Cakmak Ahmet Duran

This paper focused on the assessment of antioxidant property and fatty acid composition of four Centaurea species. The antioxidant activity of its methanol extract was evaluated by several in vitro experiments including phosphomolybedum assay, DPPH assay, β-carotene/linoleic acid, ferric and cupric reducing power. Total phenolic and flavonoid contents were also evaluated. The methanol extract o...

2014
MEHMET BONA

This article investigates the exomorphic characteristics of the achenes which are achene size, color, and surface pattern, and pappus length, and colour. All these characteristics in seven taxa of Asteraceae namely, C. aggregata Fisch. & C.A. Mey. ex DC. subsp. aggregata, C. sivasica Wagenitz, C. polypodiifolia Boiss. var. polypodiifolia, C. polypodiifolia Boiss. var. szowitziana (Boiss.) Wagen...

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