Grafting of Chestnut (Castanea sativa Mill.) on various Oak (Quercus sp.) species as a rootstocks
Shortening the production period of chestnut (Castanea sativa Mill) grafted plant material has been investigated. The aim of the research is to use oak as a rootstock, since its tolerance to high levels of calcium carbonate in the soil, to made plant material for raising chestnut orchards less dependent from the soil characteristics. As epibiont were used samples from the chestnut population, located in the north - facing slope of Mountain Vodno, Skopje area, R. Macedonia, while as hypobiont were used germinated seeds from three oak species: Kermes oak (Quercus coccifera L.), Turkey oak (Quercus cerris L.) and Macedonian oak (Quercus troјana Webb.), from Skopje Botanical garden as trees associations. Two methods of chestnut nut grafting is studied: inverted radicle grafting and classical nut grafting. As the most appropriate rootstock for grafting in both investigated methods has proved the Quercus troјana. The inverted radicle grafting method provide better results, according to the grafting acceptance percent and also according to the growing and development of the grafted units. Key words: Castanea sativa Mill., Quercus trojana Webb, Quercus coccifera L, Quercus cerris L, nut grafting, inverted radiclet grafting, grafting acceptance, soil.