Provenance variation and provenance-site interaction in Pinus brutia TEN.:Consequences of defining breeding zones

摘要

Forty-nine provenances of Pinus brutia were tested on 13 sites in Turkey, and 10-year results were evaluated. Provenances did not differ for survival except at two sites. There were highly significant differences among the provenances in height and diameter in all test sites located in the Mediterranean, Marmara and in the southeastern regions of Turkey. However, provenances did not differ in Aegean region sites except for diameter at one site. The fastest growing provenances had up to 55% greater height and 50% greater diameter than the site means, implying considerable gain can be realized if the best provenances were selected for plantations. Provenances from the middle elevation zone (400 m to 900 m) of the Mediterranean region had greater growth than the provenances from peripheral distribution of the species at most sites.