Sarıçam Tohum Bahçesinde Yaprak Alanı İndeksi (YAİ) ile Göğüs Çapı, Kozalak Verimi ve Kalıtsallık İlişkisinin Belirlenmesi

Year 2019, Volume: 21 Issue: 1, 215 - 220, 15.04.2019

Osman Topaçoğlu , Sibel Mukaddes Göztaşı

Abstract

Bu
çalışma Kastamonu Taşköprü-Tekçam Sarıçam (Pinus sylvestris L.) klonal tohum
bahçesinde gerçekleştirilmiştir. Çalışmada; klonlar üzerinde göğüs yüzeyi çapı
(d1,30), Yaprak Alanı İndeksi (YAİ) ve kozalak sayısı arasındaki ilişki ortaya
konulmaya çalışılmış ve bu karakterlere bağlı kalıtsallık oranları (H2) hesaplanmıştır.
Çalışma sonucunda, klonlardaki kozalak sayısının YAİ, ağaç çapı ve klonlara
göre değişimi incelendiğinde kozalak sayısı ile YAİ ve klonlar arasında bir
ilişki olduğu ortaya konulmuştur (p<0.05). YAİ değerleri 0.72-2.18m2m-2
(ort. 1.4m2m-2) ile göğüs çapı 14.8 - 30.9cm (ort. 23cm) arasında ise anlamlı
bir ilişki bulunmamıştır (p>0.05). Bir ağacın kozalak veriminin klonlara
göre de farklılık gösterdiği tespit edilmiştir (p<0.05). Çalışmada ölçülen
karakterlere bağlı kalıtsallık değerleri hesaplanmış ve en yüksek kalıtsallık
değeri H2 kozalak sayısında elde edilmiş olup, YAİ bakımından elde edilen
değerler ise ortalamanın çok altında kalmıştır. Klonal tohum bahçeleri için
oldukça önemli olan kozalak verimi ile YAİ arasındaki anlamlı ilişkinin ortaya
konulmuş olması tohum verimini optimize eden uygulamalarda YAİ’nin de
değerelendirilebilir bir karakter olduğunu göstermektedir.

Keywords

Yaprak alanı indeksi, klonal tohum bahçesi, sarıçam, kozalak verimi

Determination of Relationship with Leaf Area Index (LAI) and Diameter at Breast-Height, Cone Yield, Heritability in Scots Pine Seed Orchard

Abstract

This study was carried out in Kastamonu Taşköprü-Tekçam Sarıçam (Pinus sylvestris L.) clonal seed orchard. In
the study, the correlations between the number of cones and tree diameter at breat height (d1,30), leaf area index
(LAI) and the clones were inquired, and the heritability ratios (H2) depending on these characters were
calculated. As a result of the study, as changes in the number of cones depending on the clones, LAI and tree
diameter were examined, it was found that there were significant correlations between the number of cones and
LAI as well as clones (p<0.05). No significant correlation was found between the LAI (0.72 - 2.18 m2m-2) and
diameter at breat height (14.8 - 30.9cm.) (p>0.05). It has been determined that the cone yield of a tree differs
according to the clones (p<0.05). In the study, the heritability values were calculated; the highest heritability
value was obtained in the number of H2 cones and the values obtained in LAI were far below the average. The
significant correlation between the cone yield and the LAI, which seems to be very important for the clonal seed
orchards, shows that the LAI is also a critical factor for the optimization of the seed yield.

Keywords

Leaf area index, clonal seed orchard, scots pine, cone yield

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