The purpose of this research was to determine the climatic-ecological demand of thermofil broadleaf evergreen ornamental shrubs. On three different habitats: in field conditions, in container and on hillside was investigated the fluorescence induction experiments with PAM-2000 chlorophyll-fluorimetry, which was used to measure the photosynthesis 2 quantum yield of the plant.
Detailed abstractAccording to the climate change scenarios the climate in Hungary (USDA Hardiness Zone 5-7) will be dryer, richer in sunshine and winters are expected to become warmer because of the Mediterranean effect. As the nursery gardeners have to prepare themselves for the climate change therefore at the Pannonia University thermofil (USDA Hardiness Zone 7-9) broadleaf evergreen ornamental shrubs were examined for their adaptational capacity to the continental conditions.
585Journal of Central European Agriculture, 2011, 12(4), p.585-596 DOI: 10.5513/JCEA01/12.4.958 Because of geohistorical-and climate conditions the flora of our country is poor in broadleaf evergreens therefore our aim was to enrich the offering of nurseries with this barely known taxons.The species participating in the experiment living on three different habitats since 2007 were as follows:Aucuba japonica ‚Rozzanie', Cotoneaster franchettii, Elaeagnus pungens ‚Maculata Aurea', Ilex cornuta, Ligustrum sinense, Ligustrum texanum, Nandina domestica, Osmanthus heterophyllus, Phillyrea angustifolia, Photinia x fraseri ‚Red Robin', Prunus lusitanica, Sarcococca hoockeriana, Viburnum cinnamonifolium, Viburnum tinus.Chlorophyll fluorescence measurements have been widely used in plant physiology and especially in ecophysiology. In situ pulse amplitude modulated (PAM-2000) fluorometry was used to investigate the photosynthesis of the above-mentioned species on three different habitats: in field conditions, in container and on hillside. In case of significant interactions among factor, monofactorial effects were analysed separately. To test the relationship between the PSII quantum yield and the relative water content of the leaves was used regression analysis.On the basis of our examinations was determined that Ilex cornuta liked the container, Prunus lusitanica the field conditions, Elaeagnus pungens 'Maculata Aurea' the hill-side, while Cotoneaster franchettii lived well in all three habitats.According to the results were getting closer to get acquainted with the ecological demands of these species and varieties.Az éghajlatváltozást modellező forgatókönyvek szerint Magyarország (USDA télállósági zóna 5-7) éghajlata szárazabbá, napsütésben gazdagabbá válik és a telek várhatóan melegebbek lesznek a mediterrán hatás miatt. Mivel a faiskolásoknak is el kell kezdeniük a felkészülést a klímaváltozásra, ezért a Pannon Egyetemen melegigényes (USDA télállósági zóna 7-9) lomblevelű örökzöld díszcserjék kontinentális feltételekhez való adaptációs képességének vizsgálatába kezdtünk.Mivel a földtörténeti-és éghajlati feltételek miatt hazánk flórája szegény a lomblevelű ...