10th Symposium on the Flora of Southeastern Serbia and ...

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10 th <strong>Symposium</strong> on the Flora of Southeastern Serbia and Neighbouring regions,Vlasina 17 to 20 June 2010Carduus acanthoides, Salvia nemorosa, Astragalus onobrychis, Medicago sativa,Vicia villosa, Lamium purpureum i Ballota nigra. Najveći intenzitet sekrecije nektarau toku 24 časa, zabeležen je kod vrsta Prunella vulgaris, Mentha aquatica, Lamiumpurpureum i Linaria vulgaris, a najmanja dnevna količina nektara je izlučena ucvetovima Melilotus officinalis. Poređenjem nektarskog potencijala biljaka uispitivanoj korovskoj apiflori, a s obzirom na atraktivnost za polinatore, floralnuproduktivnost, brojnost i pokrovnost, kvalitetnom dopunskom pčelinjom pašom moguda se smatraju sledeće vrste: Salvia nemorosa, Echium vulgare, Vicia villosa, Astragalusonobrychis, Medicago sativa, Balota nigra, Prunella vulgaris i Trifolium pratense.Morphological variabillity of the species Ambrosiaartemisiifolia L. 1753 and A. trifida L. 1753 (Asteraceae,Heliantheae) from different habitats in Backa (Vojvodina,Serbia)Rat, M., Bojčić, S., Anačkov, G., Vukov, D., Igić, R., Boža, PUniversity of Novi Sad, Faculty of Sciences, Department of Biology andEcology, Novi Sad, Serbiamilica.rat@dbe.uns.ac.rsInvasive plant species, introduced from the North American, disturb theautochthonous vegetations in the area of the Pannonian Serbia. Taken measuresagainst invasive species that are carried out in Vojvodina, indicate the necessity ofanalyzing their morphological characteristics and phenotypic plasticity. Primarily,this analysis are important for the efficient prevention of their spread.Studies have included morphological characteristics of species Ambrosiaartemisiifolia and A. trifida, from ecologicaly diffrent habitats in Backa region. Theanalysis was conducted on 180 individuals from three localities, which are processedat 14 biometric characters of vegetative and generative region. The growth rate isbased on measurements after mechanical treatment plants at each location.The data were analyzed by classical methods and multivariate statistics.Analysis were conducted using Statistica for Windows ver. 9.0.The data indicate a different degree of phenotypic adaptation observed in differenttypes of habitats on the basis of several characters (leaf area, number ofinflorescence etc.). Mechanical treatment plants that have been exposed to, lead to areduction in the area of potential growth, which directly affect the growth rate andnumber of lateral shoots, which is highly correlated with the inflorescenceorganization, and number of flowers in them.34
10 th <strong>Symposium</strong> on the Flora of Southeastern Serbia and Neighbouring regions,Vlasina 17 to 20 June 2010Distribution of the some rare plant taxa from the mountainsof the north part of MontenegroVuksanović, S.Prirodnjački Muzej Crne Gore, Podgorica, Crna Goravukss@t-com.meDuring the floristical investigation of mountains massif of the Sinjavina,Bjelasica, Jerinja glava and Zeletin in period 2004-2009 abundant botanical materialwere collected. Several taxa with insufficiently known distribution and/orconsidered to be rare were recorded. These are: Cephalaria pastricensis Dörfler &Hayek, Cruciata balcanica Ehrend., Silene vallesia L. subsp. graminea (Vis. &Reichenb.) Nyman , Dianthus nitidus Waldst.& Kit. subsp. lakusicii Wraber ,Achillea fraassi Schultz Bip. and Tozzia alpina L.Contribution to the bryophyte flora of South-EasternSerbia: Suva Planina Mts and its surroundingsPapp, B. 1 , Erzberger, P. 21 Hungarian Natural History Museum, Hungary2 Botanischer Garten und Botanisches Museum Berlin-Dahlem, FreieUniversität Berlin, Königin-Luise-Straße 6-814195 Berlin, Germanypappbea@bot.nhmus.huAltogether 229 bryophyte taxa (25 liverworts and 204 mosses) were collectedduring a field trip made in 2006 in SE Serbia (Suva Planina, Sićevačka gorge, Jermagorge). 11 taxa (3 liverworts and 8 mosses) are recorded for the first time in Serbia.Two species occurring in the investigated area (Pseudoleskea saviana, Taxiphyllumdensifolium) are red listed in Europe and 19 species are included in the preliminarynational red list of Serbia. The bryophyte flora of the investigated region is verydiverse. In the mountain area the high number of boreal and subboreal species ischaracteristic besides the predominance of species of temperate zones of Europe.While around the high peaks several species with even alpine, subalpine-subarcticcharacter can be found, on the lower parts of the mountain and in the gorges at thefoothills numerous sub-Mediterranean, sub-Atlantic taxa occur.35
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