نتایج جستجو برای: cyndon dactylon

تعداد نتایج: 727  

ژورنال: مرتع 2017
جعفری, محمد, جهانتاب, اسفندیار, ضرغام, نصرت الله, طویلی, علی, متشرع‌زاد, بابک,

هدف از تحقیق حاضر شناسایی و ارزیابی گونه­های گیاهی مقاوم به فلزات سنگین در منطقه نفت­خیز پازنان گچساران بود. از مرکز آلودگی، سه محدوده 0 تا 500 متر، 500 تا 1000 متر و 1000 متر تا 1500 انتخاب گردید. در هر محدوده­، 30 پلات 2× 2 مستقر و ویژگی­های پوشش گیاهی برداشت شد و 15 نمونه خاک، از منطقه جمع­آوری شد. برای اندازه­گیری فلزات سنگین سرب و نیکل از دستگاه ICP-OES استفاده شد. شاخص­های TF، BCF و BAC ج...

2015
Paul M. Peterson Konstantin Romaschenko Yolanda Herrera Arrieta

The subtribe Eleusininae Dumort. (Poaceae: Chlorid­ oideae: Cynodonteae) is a morphologically diverse group, characterized by having racemose inflorescences (with a few exceptions) and contains about 212 species in 31 genera found primarily in low latitudes in Africa, Asia, Australia, and the Americas. Ten of the genera are currently monotypic (Apochiton C.E.Hubb., Austrochloris Lazarides, Dakn...

2003
M. R. Bender C. W. Wood

Researchers have previously attempted to relate the influences of many ant species to the nitrogen (N) and carbon (C) cycles. However, the gaseous phases of these cycles have been neglected. A field study was conducted near Auburn University (328520N, 858300W) in a bermudagrass [Cynedon dactylon (L.) Pers] pasture to determine the influence of the red imported fire ant [Solenopsis invicta (L.) ...

Journal: :Environmental pollution 2012
Nicholas J Gilliland Arthur H Chappelka Russell B Muntifering Fitzgerald L Booker Stephen S Ditchkoff

A mixture of common Southern Piedmont (USA) grassland species (Lolium arundinacea, Paspalum dilatatum, Cynodon dactylon and Trifolium repens) was exposed to O(3) [ambient (non-filtered; NF) and twice-ambient (2X) concentrations] and fed to individually caged New Zealand white rabbits (Oryctolagus cuniculus) in a digestibility experiment. Forages and feed refusals were analyzed for concentration...

2013
R. Hema S. Kumaravel

Antimicrobial activity of 25, 50, 75 and 100% alcohol extract of Piper nigrum (Black Pepper), Psidium guajava (Guava), Amomum cardamom (Cardamom) and Cynogen dactylon (Bermuda grass) has been evaluated against Pseudomonas lundensis, Bacillus cereus, Aspergillus niger and Aspergillus flavus. Psidium guajava extract showed excellent antimicrobial activity against all the test organisms. In 25% co...

Journal: :Plant physiology 1969
T M Chen R H Brown C C Black

Chloroplasts have been isolated from bermudagrass (Cynodon dactylon L.) leaves and assayed for photophosphorylation and electron transport activity. These chloroplasts actively synthesize adenosine triphosphate during cyclic electron flow with phenazine methosulfate and noncyclic electron flow concurrent with the reduction of such Hill oxidants as nicotinamide adenosine dinucleotide phosphate, ...

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