Author/Editor     Batič, Franc; Mavsar, Robert; Sinkovič, Tomaž; Kralj, Tone
Title     Morfološka variabilnost populacij doba (Quercus robur L.) v Sloveniji
Translated title     Morphological variability of pedunculate oak (Quercus robur L.) populations in Slovenia
Type     članek
Source     Acta Biol Slov
Vol. and No.     Letnik 41, št. 2-3
Publication year     1997
Volume     str. 127-40
Language     slo
Abstract     The article presents a taxonomic study carried out to evaluate morphological variability of the pedunculate oak (Quercus robur L.) populations in Slovenia, as a result of adaptation to their environment and possible hybridization with sessile oak. Results of morphological data are based on measurements carried out in 1993 to 1994 on five pedunculate and one sessile oak populations. On each location one hundred leaves were sampled from five trees. Samples were collected from the well lit upper part of the tree crowns and only leaves from short twigs wee analysed. Leaf samples were herbarised, measured and assessed in the laboratory. Leaf dimensions (lamina lenght and with, petiole length, number of lobe pairs) were measured and characters like type of leaf pubescence and leaf lamina base type were assessed. Analysis of lead morphometry data showed introgression of both species, especialy when growing in same stands. More locations of both oak species should be analysed in order to obtain reliable data for taxonomic studies of oak hybrids by leaf and acorn morphometry coupled with DNA in situ hybridization experiments, RAPD markers and other biochemical parameters of leaves and fruits.
Summary     Prispevek predstavlja poskus ovrednotenja morfološke raznolikosti populacij doba (Quercus robur L.) v Sloveniji, ki je posledica ekološke pestrosti rastišč in možnosti križanja z drugimi vrstami hrastov, predvsem z gradnom (Quercus petraea/Matt./ Liebl.) Rezultati so dobljeni na osnovi meritev in opazovanja dobovih listov, vzorčenih v jeseni leta 1993 in 1994 v petih dobovih in enem gradnovem sestoju. Na vsaki lokaciji je bilo vzorčenih pet dreves in nabranih sto listov s kratkih poganjkov v zgornji tretjini krošnje. Na herbariziranih listih so bili v laboratoriju izmerjeni naslednji parametri: dolžina in širina lista, dolžina listnega peclja, število listnih krp, oblika listnega dna, tip dlačic, njihovo mesto in gostota ter nekateri prametri plodov. Analize morfoloških znakov kažejo na introgresijo ene vrste v drugo, posebej na rastiščih, kjer vrsti rasteta skupaj. Popolnejšo sliko bomo dobili, ko bomo analizirali podatke, dobljene iz več lokacij, in rezultate dopolnili z analizo DNK (hibridizacije in situ, RAPD markerji) in nekaterih izbranih biokemičnih parametrov listov in plodov.
Descriptors     TREES
ECOSYSTEM
PLANT LEAVES