Research Information System
Hiç F. Ö. (Executive)
World Bank Supported Project, 2000 - 2006
This study was carried out to determine growing conditions of Paulownia which is planted as a forest trees, as well as poplar and eucalyptus, in agricultural areas for wood production in Turkey.
As requirement of the project, a gene bank was established with 19 origins belong to P. elongata, P. fortunei and P. tomentosa and a hybrid Paulownia that provided from China Forest Institute, in Torbalı Forest Nursery. It has established eight field trails in South Eastern Project (SAP) Region (Diyarbakır), Mediterranean Region (Ceyhan Forest Nursery and Serik), Aegean Region (Aydın), Marmara Region (Adapazarı) and Black Sea Region (Ordu - Central and Ulubey)
There were no differences between origins according to survival rates. While there were maximum of survival rates origins about P. fortunei Hubei, P. fortunei Guanxi in height in growth Ceyhan, P. tomentosa Shanxi in Aydın field trail.
As a result of examinations of direct factors affected trunk quality and planting space, these properties were determined: P. fortunei Guanxi had the best trunk form, P. tomentosa Shaanxi had the most regular crown form, P. elongata
Henan had the curvets crown form, P. fortunei Guanxi had the widest curve crown form. And the widest crown was of P. fortunei Guizhou.
The use of Paulownia species in commercial plantations is risky before silviculture and breeding researches were completed. It can be advised to use poplar and eucalyptus species in the commercial plantation it is get the results of these researches.
Key words: Paulownia, origin, survival rate, crown form, widest crown.