نتایج جستجو برای: herbaceous species

تعداد نتایج: 550042  

2014
Duo Ye Yukun Hu Minghua Song Xu Pan Xiufang Xie Guofang Liu Xuehua Ye Ming Dong

Plant clonality, the ability of a plant species to reproduce itself vegetatively through ramets (shoot-root units), occurs in many plant species and is considered to be more frequent in cold or wet environments. However, a deeper understanding on the clonality-climate relationships along large geographic gradients is still scarce. In this study we revealed the clonality-climate relationships al...

Journal: :research journal of pharmacognosy 2014
f. naghibi m. irani a. hassanpour a. pirani m. hamzeloo-moghadam

cancer is a major cause of death worldwide and causes serious problems in human life. it is developed by uncontrolled growth of a cell or a group of cells. there are many difficulties in treatment of cancer and many researchers are involved in investigating for effective drugs to treat the disease. caryophyllaceae is a large family of about 86 genera and 2200 herbaceous or subshrub species. the...

Journal: :Mycologia 2014
Z Gloria Abad Jorge A Abad Santa Olga Cacciola Antonella Pane Roberto Faedda Eduardo Moralejo Ana Pérez-Sierra Paloma Abad-Campos Luis A Alvarez-Bernaola József Bakonyi András Józsa Maria Luz Herrero Treena I Burgess James H Cunnington Ian W Smith Yilmaz Balci Cheryl Blomquist Béatrice Henricot Geoffrey Denton Chris Spies Adele Mcleod Lassaad Belbahri David Cooke Koji Kageyama Seiji Uematsu Ilker Kurbetli Kemal Değirmenci

A non-papillate, heterothallic Phytophthora species first isolated in 2001 and subsequently from symptomatic roots, crowns and stems of 33 plant species in 25 unrelated botanical families from 13 countries is formally described here as a new species. Symptoms on various hosts included crown and stem rot, chlorosis, wilting, leaf blight, cankers and gumming. This species was isolated from Austra...

Journal: :Journal of environmental management 2012
Gloria Rodríguez-Loinaz Ibone Amezaga Miren Onaindia

Fragmentation of natural habitats is one of the main causes of the loss of biodiversity. However, all plants do not respond to habitat fragmentation in the same way due to differences in species traits. We studied the effect of patch size and isolation on the biodiversity of vegetation in the mixed-oak forests in the north of the Iberian Peninsula. The aim was to evaluate whether all the growth...

Journal: :Ecological applications : a publication of the Ecological Society of America 2013
Johann Walker Jay J Rotella Scott E Stephens Mark S Lindberg James K Ringelman Christine Hunter Aaron J Smith

The Prairie Pothole Region (PPR) is the primary breeding region for most species of North American dabbling ducks (Anas spp.). Conservation of these species is guided in part by knowledge of relationships between nest survival probability and habitat features. Positive relationships between duck nest survival and amount and configuration of herbaceous perennial vegetation have been observed in ...

2007
PONDEROSA PINE JONATHAN D. BAKKER MARGARET M. MOORE

Long-term studies can broaden our ecological understanding and are particularly important when examining contingent effects that involve changes to dominance by long-lived species. Such a change occurred during the last century in Southwestern (USA) ponderosa pine (Pinus ponderosa) forests. We used five livestock grazing exclosures established in 1912 to quantify vegetation structure in 1941 an...

2009
Shiro Suzuki Yoshie Suzuki Naoki Yamamoto Takefumi Hattori Masahiro Sakamoto Toshiaki Umezawa

For research and development of plants suitable for forage and biofuel production, the development of a highthroughput system of lignin determination, especially for herbaceous species, is important. However, currently available methods for lignin determination are not suitable for high-throughput analysis of herbaceous samples. In this paper, we describe a straightforward, high-throughput meth...

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