In this study, seeds were collected from 22 seed stands of Taurus cedar (Cedrus libani A. Rich.), and these seeds were sown at the Black Sea Technical University Nursery in 1995. The main morphological characteristics of 2+0 year old seedlings were measured in 1997. | Turk J Biol 25 (2001) 221-228 © TÜB‹TAK Comparison of 22 Taurus Cedar (Cedrus libani A. Rich.) Origins by Seedling Morphological Distance Zeki YAHYAO⁄LU, Ali DEM‹RC‹ Forestry Faculty, Black Sea Technical University, 61080 Trabzon - TURKEY Nebi B‹L‹R, Musa GENÇ Forestry Faculty, Süleyman Demirel University, 32670 Atabey, Isparta - TURKEY Received: Abstract : In this study, seeds were collected from 22 seed stands of Taurus cedar (Cedrus libani A. Rich.), and these seeds were sown at the Black Sea Technical University Nursery in 1995. The main morphological characteristics of 2+0 year old seedlings were measured in 1997. Values of seedling morphological distance were calculated using the Penrose formula to compare the origins in terms of morphological characteristics. According to the Penrose formula, when the values of morphological distance (Pi,j) approach zero, the similarity between origins increases. Consequently, the most similar origins were Mugla-Arpacik and Isparta-Belcegiz2 (P18,22=), while the most different origins were Mersin-Aslankoy and Isparta-Belcegiz1 (P3,11=). Therefore, the Penrose formula should be used in the preparation of forest gene maps, and also, in the studies of fixing geographical variations and seed transfer regions. Key Words : Cedrus libani, Origin, Seedling, Morphological characteristics, Penrose formula 22 Toros Sediri (Cedrus libani A. Rich.) Orijinin Fidan Morfolojik Mesafe De¤erleri ile Karfl›laflt›r›lmas› Özet : Bu çal›flma, 22 Toros Sediri (Cedrus libani .) tohum meflçeresinden elde edilen ve 1995 y›l›nda Karadeniz Teknik Üniversitesi Orman Fakültesi Fidanl›¤›na 1995 y›l›nda ekilen tohumlardan üretilen 2+0 yafll› fidanlar üzerinde gerçeklefltirilmifltir. Fidanlarda 1997 y›l›nda yap›lan temel morfolojik özelliklere ait ölçüm de¤erleri kullan›larak, orijinler aras› benzerlik ve farkl›l›klar Penrose formülü yard›m›yla belirlenmeye çal›fl›lm›flt›r. Penrose formülüne göre elde edilen .
