نتایج جستجو برای: plant establishment

تعداد نتایج: 454542  

2013
Stephen L. Young Guy B. Kyser Jacob N. Barney Victor P. Claassen Joseph M. DiTomaso

To resist establishment by an invasive plant, a community may require one or more species functionally similar to the invader in their resource acquisition pattern. In this study, communities consisting of native winter annual forbs, non-native annual grasses, native perennials, or a combination of the two native communities were established with and without Centaurea solstitialis to determine ...

2007
Peter E. Neil

Interest in sandalwood has increased recently in Nepal as a result of a royal directive to plant it in the Eastern Development Region. The most suitable seed sources, seed acquisition, nursery techniques, direct sowing and plantation establishment methods are discussed here on the basis of results from elsewhere. Suggestions are made as to what research is most needed to assist with successful ...

Journal: :The Plant journal : for cell and molecular biology 2015
Xiaowei Zhang Wentao Dong Jongho Sun Feng Feng Yiwen Deng Zuhua He Giles E D Oldroyd Ertao Wang

The establishment of symbiotic interactions between mycorrhizal fungi, rhizobial bacteria and their legume hosts involves a common symbiosis signalling pathway. This signalling pathway is activated by Nod factors produced by rhizobia and these are recognised by the Nod factor receptors NFR1/LYK3 and NFR5/NFP. Mycorrhizal fungi produce lipochitooligosaccharides (LCOs) similar to Nod factors, as ...

Journal: :Risk analysis : an official publication of the Society for Risk Analysis 2003
Trond Rafoss

Pest risk analysis represents an emerging field of risk analysis that evaluates the potential risks of the introduction and establishment of plant pests into a new geographic location and then assesses the management options to reduce those potential risks. Development of new and adapted methodology is required to answer questions concerning pest risk analysis of exotic plant pests. This resear...

2011
Jasper van Ruijven

Sod cutting (i.e. top soil removal) is a restoration management option for enhancing seedling establishment and for lowering the nutrient concentration in eutrophicated soils of nutrient-poor species-rich grasslands. Removal of the upper soil changes not only abiotic soil properties but may also affect the resident soil community. We investigated the effects of sod cutting on the establishment ...

Journal: :Ecology 2018
Bryndís Marteinsdóttir Kristín Svavarsdóttir Thóra Ellen Thórhallsdóttir

Initial plant establishment is one of the most critical phases in ecosystem development, where an early suite of physical (environmental filtering), biological (seed limitation, species interactions) and stochastic factors may affect successional trajectories and rates. While functional traits are commonly used to study processes that influence plant community assembly in late successional comm...

Journal: :journal of herbal drugs (an international journal on medicinal herbs) 2015
abas zarezadeh fatemeh sefikon sayed reza tabaei aghdaei3 ali mirhossaini mohammad reza arabzadeh

background & aim: the genus satureja belonging to the family of lamiaceae and consists of over 235 different species throughout the world. fourteen species grow naturally in iran of which eleven species are endemic. different species of satureja are used in food, healthy, cosmetic and medical industry. this reseach has been carried due to selection and introduction of suitable germplasm in ...

2006
Jörgen Wissman

Wissman, J. 2006. Grazing regimes and plant reproduction in semi–natural grasslands. The dominating grazing regime in semi-natural grasslands today is continuous grazing throughout the season, and a high grazing pressure is often advised in order to avoid litter accumulation. Traditional management, on the other hand, included late mowing and grazing, which favoured plant flowering and seed pro...

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