نتایج جستجو برای: گیاه phragmites australis

تعداد نتایج: 35745  

2010
Christine Holdredge Mark D. Bertness Brian R. Silliman

Many mechanisms of invasive species success have been elucidated, but those driving cryptic invasions of non-native genotypes remain least understood. In one of the most successful cryptic plant invasions in North America, we investigate the mechanisms underlying the displacement of native Phragmites australis by its Eurasian counterpart. Since invasive Phragmites ’ populations have been especi...

Journal: :رستنیها 0
یوبرت قوستا دانشیار بیماری شناسی گیاهی، گروه گیاه پزشکی، دانشگاه ارومیه، ارومیه، ایران ([email protected]) مسعود ابرین بنا استادیار بیماری شناسی گیاهی، گروه گیاه پزشکی، دانشگاه ارومیه، ارومیه، ایران

during the visits of common reed [phragmites australis (cav.) trin. ex steud] in different locations of west azerbaijan province during 2015–16, symptoms of fungal infections was frequently observed. among the isolated and studied fungi, deightoniella arundinacea (corda) s. hughes was commonly observed. based on available literatures, this species was found new to mycobiota of iran.

Journal: :Frontiers in Environmental Science 2021

Invasive species pose one of the greatest threats to global biodiversity. Early detection invasive is critical in order prevent or manage their spread before they exceed ability land management groups control them. Optical remote sensing has been established as a useful technology for early and mapping vegetation populations. Through use airborne hyperspectral imagery (HSI), this study establis...

2014
Ganesh P. Bhattarai James T. Cronin

Disturbances are a primary facilitator of the growth and spread of invasive species. However, the effects of large-scale disturbances, such as hurricanes and tropical storms, on the broad geographic patterns of invasive species growth and spread have not been investigated. We used historical aerial imagery to determine the growth rate of invasive Phragmites australis patches in wetlands along t...

Journal: :Mycological research 2005
Jan Nechwatal Anna Wielgoss Kurt Mendgen

During a study on the occurrence and pathogenicity of oomycetes in the reed-belt (Phragmites australis) of Lake Constance (Germany), a new Pythium resembling the important cereal pathogen species complex P. arrhenomanes/P. graminicola was consistently isolated from necrotic mature reed leaves and reed rhizosphere samples. The new species proved to be significantly more aggressive towards reed l...

2007
Steven Y. Litvin Michael P. Weinstein

The stable isotope signatures of marine transient and resident nekton were used to investigate trophic linkages between primary producers, marsh macrophytes, phytoplankton, benthic microalgae, and consumers within the Delaware Bay. A whole estuary approach was used to compare the flux of nutrients from primary producers to juvenile weakfish (Cynoscion regalis), bay anchovy (Anchoa mitchilli), a...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه زابل - دانشکده جنگلداری و مهندسی چوب و کاغذ 1392

در این تحقیق تأثیر نانو رس در3 سطح 0%، 2% و 4% به همراه پلی پروپیلن اکسید شده (opp) به میزان 3%، بر خواص چوب پلاستیک ساخته شده از گیاه نی و ضایعات پلاستیک شهری بررسی می گردد. بدین منظور ساقه های گیاه نی (phragmites australis) تهیه شده از سیستان پس از آردشدن به همراه ضایعات پلاستیک شهری تهیه شده از شرکت حایر پلاست در برابندر با درصد اختلاط آرد گیاه نی و ضایعات پلاستیک شهری به میزان 50:50، 47:50،...

Journal: :Invasive Plant Science and Management 2016

Journal: رستنیها 2016
Masoud Abrinbana Youbert Ghosta,

During the visits of common reed [Phragmites australis (Cav.) Trin. ex Steud] in different locations of West Azerbaijan province during 2015–16, symptoms of fungal infections was frequently observed. Among the isolated and studied fungi, Deightoniella arundinacea (Corda) S. Hughes was commonly observed. Based on available literatures, this species was found new to mycobiota of Iran.

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