Propagation by cuttings and identification by isoenzymes of some cork oak (Quercus suber) plus trees from Portugal
1995
Wuehlisch, G. von | Muhs, H.J.
To increase cork production, a tree improvement and germplasm conservation programme has been initiated in Portugal for which knowledge about the genetic architecture and the development of propagation methods is necessary. Progenies of 30 open-pollinated plus tree were raised in the greenhouse to supply tissues for the analysis of biochemical markers and cuttings for the rooting experiments. - The rooting of little lignified cuttings from young seedlings is possible. From some half-sib families up to 100% rooting was achieved. However, not all of the genotypes can be rooted easily, which is a prerequisite for tree improvement and gene conservation programmes. Thus, more effort into reserach and development has to be put into this method in order to be able to propagate all desirable genotypes. - The establishment of isozyme gene markers was successful for several isozyme gene loci. For a number of further loci the inheritance still has to be proved. To do this, it will be necessary to produce progenies by controlled pollination. Estimates of the gene variability of the species in comparison with other species were not possible at this early stage.
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