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1.
Annual cambial rhythm in Pinus halepensis and Pinus sylvestris as indicator for climate adaptation
Peter Prislan, Jožica Gričar, Martin De Luis, Klemen Novak, Edurne Martinez Del Castillo, Uwe Schmitt, Gerald Koch, Jasna Štrus, Polona Mrak, Magda Tušek-Žnidarič, Katarina Čufar, 2016

Povzetek: To understand better the adaptation strategies of intra-annual radial growth in Pinus halepensis and Pinus sylvestris to local environmental conditions, we examined the seasonal rhythm of cambial activity and cell differentiation at tissue and cellular levels. Two contrasting sites differing in temperature and amount of precipitation were selected for each species, one typical for their growth and the other represented border climatic conditions, where the two species coexisted. Mature P. halepensis trees from Mediterranean (Spain) and sub-Mediterranean (Slovenia) sites, and P. sylvestris from sub-Mediterranean (Slovenia) and temperate (Slovenia) sites were selected. Repeated sampling was performed throughout the year and samples were prepared for examination with light and transmission electron microscopes. We hypothesized that cambial rhythm in trees growing at the sub-Mediterranean site where the two species co-exist will be similar as at typical sites for their growth. Cambium in P. halepensis at the Mediterranean site was active throughout the year and was never truly dormant, whereas at the sub-Mediterranean site it appeared to be dormant during the winter months. In contrast, cambium in P. sylvestris was clearly dormant at both sub-Mediterranean and temperate sites, although the dormant period seemed to be significantly longer at the temperate site. Thus, the hypothesis was only partly confirmed. Different cambial and cell differentiation rhythms of the two species at the site where both species co-exist and typical sites for their growth indicate their high but different adaptation strategies in terms of adjustment of radial growth to environmental heterogeneity, crucial for long-term tree performance and survival.
Ključne besede: Aleppo pine, Pinus halepensis, Scots pine, Pinus sylvestris, cambium, light microscopy, Mediterranean environment, temporate environment, transmission electron microscopy, xylem
DiRROS - Objavljeno: 12.07.2017; Ogledov: 2246; Prenosov: 913
.pdf Celotno besedilo (4,63 MB)

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EUFORIA : European forest research and innovation area : programme and book of abstracts
2015

DiRROS - Objavljeno: 12.07.2017; Ogledov: 2426; Prenosov: 682
URL Celotno besedilo (0,00 KB)
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4.
Varovanje bolnikovih pravic po novem zakonu o pacientovih pravicah
Magda Žezlina, 2008

Ključne besede: pacienti, pravice, zakoni
DiRROS - Objavljeno: 11.02.2020; Ogledov: 991; Prenosov: 319
.pdf Celotno besedilo (132,48 KB)

5.
Agricultural landscape affects sex-specific differences in the abundance of Drosophila suzukii in raspberry orchards
Maarten De Groot, Magda Rak Cizej, Andreja Kavčič, Špela Modic, Franček Poličnik, Nina Šramel, Primož Žigon, Jaka Razinger, 2021

Povzetek: In recent decades, the spotted wing Drosophila (SWD) (Drosophila suzukii), an invasive pest, has caused a great deal of damage to fruit crops. There is therefore an urgent need to develop strategies to control the populations of this species. It has been found that the landscape context can buffer or increase the severity of pest outbreaks in agriculture, and it is important to understand how this process works in SWD for all crops. Given this background, we investigated the influence of forest on SWD populations in raspberry orchards and surrounding agricultural land. We selected 10 locations in the central part of Slovenia, five of which were closer than 200 m from the forest edge and five of which were more than 200 m from the forest edge. We collected SWD adults in three habitat types per location from the end of June until the end of October 2020. The results showed that forest harboured a larger SWD population than orchards and agricultural land. Over the season, the number of individuals increased exponentially over time, and the difference between forest and other habitat types increased. The distance from the forest had a negative effect on the abundance of SWD. There was a difference in abundance observed between males and females, with males being less abundant farther away from the forest than females. However, the distance from the forest only had a negative effect on the abundance of females in September. Based on the results, we propose potential measures for the control of SWD in raspberry orchards.
Ključne besede: agricultural ecosystem, integrated pest management, invasive species, raspberry, spotted wing drosophila
DiRROS - Objavljeno: 15.11.2021; Ogledov: 24; Prenosov: 27
.pdf Celotno besedilo (1,30 MB)

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