نتایج جستجو برای: grass species

تعداد نتایج: 564295  

ژورنال: علوم آب و خاک 2008
اسکندری, ذبیح ا... , خداقلی, مرتضی , سعیدفر, مصطفی , چاووشی , ستار ,

The effect of nitrogen and phosphorous fertilization on range species production was studied using factor combination method as factorial with 3 blocks and 12 treatments. Nitrogen in 4 levels of 0،25،50 and 75 kg N/ha and phosphorus in 3 rates of 0،30 and 60 kg N/ha were used. Results indicated no significant difference between nitrogen rates in different growth forms of grass, bush and Eurotia...

اسکندری, ذبیح ا... , خداقلی, مرتضی , سعیدفر, مصطفی , چاووشی , ستار ,

The effect of nitrogen and phosphorous fertilization on range species production was studied using factor combination method as factorial with 3 blocks and 12 treatments. Nitrogen in 4 levels of 0،25،50 and 75 kg N/ha and phosphorus in 3 rates of 0،30 and 60 kg N/ha were used. Results indicated no significant difference between nitrogen rates in different growth forms of grass, bush and Eurotia...

2016
Xiping Yang Jianping Wang

The nucleotide-binding site (NBS)-leucine-rich repeat (LRR) gene family is crucially important for offering resistance to pathogens. To explore evolutionary conservation and variability of NBS-LRR genes across grass species, we identified 88, 107, 24, and 44 full-length NBS-LRR genes in sorghum, rice, maize, and Brachypodium, respectively. A comprehensive analysis was performed on classificatio...

2006
Sébastien Lavergne Jane Molofsky

II. PHALARIS ARUNDINACEA L. (REED CANARY GRASS) AS AN INVASIVE SPECIES ................................ 417 A. General Features of Reed Canary Grass in Its Native Range ............................................................................ 417 B. The Repeated Introductions of Reed Canary Grass and Its Subsequent Invasion in North America ...................... 417 C. Ecological Impacts of...

Diana Askarizadeh Dnyan Patil Mohammad hasan Jouri Nosrat Safaian, Rivandra S. Gavali

Based on the importance and role of species diversity and richness as ameasurement of the health of an ecosystem; studying of their components can lead toevaluate the health condition of rangeland. This research was carried out in a part ofhighland mountainous rangeland of Mount Alborz Range in Iran. Diversity and richnesswere assessed as an ecosystem health indicator. The study area was locate...

Journal: :international journal of environmental research 0
d. liebenberg unit for environmental sciences and management, north-west university, potchefstroom, 2520, south africa s. claassens unit for environmental sciences and management, north-west university, potchefstroom, 2520, south africa l. van rensburg unit for environmental sciences and management, north-west university, potchefstroom, 2520, south africa

a long-term study was conducted between 1985 and 2003 on rehabilitation trials at sishen ironore mine, south africa, to identify grass species that would survive in the artificial growth medium appliedto the sites, and to determine the most suitable medium for sustainable vegetation growth. vegetationestablishment was tested at slopes of 18° and 34° and with five different cover materials. afte...

2014
GA Awuni J Gore D Cook JA Bond FR Musser CA Adams

The rice stink bug, Oebalus pugnax (Fabricius) (Hemiptera: Pentatomidae: Carpocorini), though graminaceous, discriminates among its numerous host grass species. This could represent a feeding preference, it could be related to host suitability for growth and development. To clarify the role of host grass discrimination, two laboratory studies were conducted: (1) free-choice tests to evaluate pr...

Journal: :Plant physiology 2013
Matthias Pfeifer Mihaela Martis Torben Asp Klaus F X Mayer Thomas Lübberstedt Stephen Byrne Ursula Frei Bruno Studer

Whole-genome sequences established for model and major crop species constitute a key resource for advanced genomic research. For outbreeding forage and turf grass species like ryegrasses (Lolium spp.), such resources have yet to be developed. Here, we present a model of the perennial ryegrass (Lolium perenne) genome on the basis of conserved synteny to barley (Hordeum vulgare) and the model gra...

2016
Hui Song Zhibiao Nan Qiuyan Song Chao Xia Xiuzhang Li Xiang Yao Wenbo Xu Yu Kuang Pei Tian Qingping Zhang

Epichloë fungal endophytes are broadly found in cool-season grasses. The symbiosis between these grasses and Epichloë may improve the abiotic and biotic resistance of the grass plant, but some Epichloë species produce alkaloids that are toxic for livestock. Therefore, it is important to understand the characteristics of the grass-Epichloë s symbiosis so that the beneficial aspects can be preser...

2014
Brandon R. Ray Matthew W. Johnson Kirk Cammarata Delbert L. Smee Ruth H. Carmichael

The objective of this study was to measure the communities associated with different seagrass species to predict how shifts in seagrass species composition may affect associated fauna. In the northwestern Gulf of Mexico, coverage of the historically dominant shoal grass (Halodule wrightii) is decreasing, while coverage of manatee grass (Syringodium filiforme) and turtle grass (Thalassia testudi...

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