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Karpenísi, Greece

Spanos I.,Greek National Agricultural Research Foundation | Raftoyannis Y.,TEI Lamias | Platis P.,Greek National Agricultural Research Foundation | Xanthopoulou E.,Greek National Agricultural Research Foundation
Web Ecology

The effects of management after fire in Pinus halepensis forests were assessed in northern Greece. Seeding, logging and building of log barriers were applied in burned sites and compared to a control site. Two years after treatment application, 70-80% of the ground in all sites was covered with vegetation. Seeding with herbaceous plants did not increase plant cover. Logging and building of log barriers negatively affected herbaceous species but increased woody species. During the first spring after fire, the highest numbers of P. halepensis seedlings were observed in the control site and the lowest number in the logged site. Logging and log barrier building had a negative effect on pine regeneration compared to control and seeding treatments. Woody plant composition was similar in control and seeding sites, with dominance of P. halepensis and Cistus species. A different pattern was observed in the logging and log-barrier sites with a low number of seeders and a high number of resprouter species. Copyright © EEF. Source

Strimpakos N.,TEI Lamias | Strimpakos N.,University of Manchester
Journal of Bodywork and Movement Therapies

Quantitative documentation of physical deficits such as muscle strength and endurance/fatigue in the cervical spine may provide objective information, not only helping the diagnostic procedures, but also monitoring rehabilitation progress and documenting permanent impairments. The reliable and valid evaluation of muscle strength and endurance both in clinical and research environments are a difficult task since there are many factors that could affect the assessment procedure and the obtained values. The aim of the second part of this critical review is to identify the factors influencing the assessment of strength and endurance/fatigue of the muscles in the cervical spine. © 2010 Elsevier Ltd. Source

Strimpakos N.,TEI Lamias | Strimpakos N.,University of Manchester
Journal of Bodywork and Movement Therapies

Neck pain and headache of cervical origin are complaints affecting an increasing number of the general population. Mechanical factors such as sustained neck postures or movements and long-term "abnormal" physiologic loads on the neck are believed to affect the cervical structures and compromise neck function. A comprehensive assessment of neck function requires evaluation of its physical parameters such as range of motion, proprioception, strength and endurance/fatigue. The complicated structure of the cervical spine however, makes it difficult for any clinician to obtain reliable and valid results. The aim of the first part of this systematic critical review is to identify the factors influencing the assessment of range of motion and proprioception of the cervical spine. © 2009 Elsevier Ltd. Source

Radoglou K.,Greek National Agricultural Research Foundation | Kostopoulou P.,Greek National Agricultural Research Foundation | Raftoyannis Y.,TEI Lamias | Dini-Papanastasi O.,Greek National Agricultural Research Foundation | Spyroglou G.,Greek National Agricultural Research Foundation
Plant Biosystems

The use of the mini-plug system for the production of container seedlings is relatively new, so there is little information on the potential impact of method on the quality of planting stock. The objective in this study was to evaluate the impact of mini-plug growing method on quality of Pinus brutia seedlings, and compare the performance of this stock type with that of standard container nursery stock. Seedling survival, growth and physiological status (root growth potential, shoot electrolyte leakage) were measured after pre-cultivation in mini-plugs, at the end of the first growing season in standard containers and after field transplanting. Our results showed that mini-plug transplants of P. brutia seedlings performed as well as the standard planting stock currently used in nursery operation in Greece. For the pre-cultivation of P. brutia seedlings in miniplugs, the use of peat and a density of 2000 mini-plugs m-2 are recommended. © 2011 Società Botanica Italiana. Source

Pantera A.,TEI Lamias | Papanastasis V.P.,Aristotle University of Thessaloniki
Global Nest Journal

A noticeable decline of Quercus ithaburensis ssp. Macrolepis, a typical mediterranean species, has been recorded in the past few decades throughout Greece. The triggers were mostly human influences and specifically illegal cuttings, wildfires, and overgrazing. Regeneration and future management of this species is therefore questionable. To investigate the effect of companion plants on this decline as expressed by water availability and plant growth, a pot experiment was conducted and oak seedlings were planted with Bromus sterilis and a mixture of Trifolium repens and T. fragiferum as companion plants. Midday water potential from May to September and oak growth at the end of the experiment were measured as factors affecting oak physiology. The results suggest a different effect on the water potential of the oak seedlings depending on the companion plant species and the time of the year. The presence of a companion plant that has completed its life cycle by the end of spring may positively influence the water status of oaks during the summer months due to shading and lower soil water evaporation. On the contrary, when the companion plants continue their life cycle in the summer, the negative effect may be continued, specifically during the very dry months. The negative effect of grass on the growth of oaks may be attributed to their shading from the dense grass biomass. It can be concluded that control of competitive vegetation, especially of grasses, is crucial for Quercus ithaburensis ssp. macrolepis regeneration by natural (from acorns) or artificial (with up to one-year-old seedlings) methods. This control is necessary at least in the first year after establishment, when seedling height is less than that of the competitive vegetation. If the latter can not be removed by some ways (e.g. controlled grazing), then it is safer to use taller oak seedlings of an older age in the reforestation projects. © 2012 Global NEST. Source

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