Süleyman Gülcü

Growth and Survival Variation among Scots Pine (Pinus sylvestris L.) Provenances

Tree height, basal diameter, and survival were examined in thirteen-year-old provenance test established by 30 seed sources of Scots pine (Pinus sylvestris L.) at two exotic sites of the species in Southern part of Turkey. Variations within provenance and among provenances and relations among the traits were estimated to compare Scots pine provenance and two other native species. Averages of tree height and basal diameter were 350 cm and 52.7 mm in Aydogmus site and 385 cm and 51.2 mm in Kemer site, respectively. There were large differences within and among provenances for the characters. Sites were similar (p > 0.05) for the characters, while there were significant differences (p ≤ 0.05) among provenances within site according to results of variance analysis (ANOVA). Scots pine provenances were higher and had more thickness than that of black pine (Pinus nigra Arnold) and Taurus cedar (Cedrus libani A. Rich.) which were natural species of the region. There were positive and significant (p < 0.05) correlations between height and basal diameter in the species. Average survivals were 56% and 35% of the provenances in the sites. They were 71% and 11% in black pine and 53% in Taurus cedar for the sites respectively.

Farklı toprak işleme yöntemleriyle hazırlanan kurak alanlarda kabıyla birlikte dikilen fidanlarda yaşama yüzdesi ve büyüme

Bu calismada, kurak alan agaclandirmalarinda, degisik toprak isleme yontemleriyle arazi hazirligi yapilan alanlarda tupuyle birlikte dikilen Karacam [ Pinus nigra Arnold. ssp. pallasiana (Lamb. Holmboe.)], Toros Sediri ( Cedrus libani A. Rich) ve Boz Ardic ( Juniperus excelsa Bieb.) fidanlarinin yasama yuzdeleri ve buyumeleri incelenmistir. Bu amacla Karaman agaclandirma sahasi deneme alani olarak secilmistir. Deneme alaninda arazi hazirligi farkli ekipmanlarla yapilarak 12 degisik islem uygulanmistir. Islemlerin uygulandigi parsellerde denemeye alinan turlere ait tuplu fidanlar tupleri cikarilmadan yalniz bir santimetrelik alt kisimlari kesilerek dikilmistir. Deneme tesaduf parselleri deneme desenine uygun olarak 3 yinelemeli ve her yinelemede 20 fidan olacak sekilde kurulmustur. Dikimden sonraki ikinci vejetasyon donemi sonunda yasama yuzdesi, fidan boyu, son yila ait surgun boyu ve dip cap olcumleri yapilmistir.Verilerin degerlendirilmesi sonucunda, tupleriyle birlikte dikilen fidanlarda ikinci vejetasyon donemi sonunda en dusuk yasama yuzdesi Karacamda (%38.89), en yuksek ise Boz Ardicta (%88.89) elde edilmistir. Uygulanan toprak isleme yontemleri goz onune alindiginda, fidan gelisimi ve tutma basarisi bakimindan ust toprak islemesinin yapildigi, diskaro ile gradoni islemlerini birlestiren yontemlerin her 3 tur icin de daha basarili oldugu belirlenmistir. Ayrica digerlerine gore daha iyi performans gosteren 2’li riper+gradoni teras ve 3’lu riper+gradoni teras islemleri ekonomik ve uygulama kolayligi nedeniyle onerilebilir.