The effects of the growing incidence on some morphological quality criteria of Turkish pine seedlings

In this study, the effects of different growing densities on morphological characteristics of Pinus brutia seedlings and the distribution of the seedlings into two different seedling quality class were examined under field conditions. Randomized complete block method with five treatments and as experimental design. Seedlings were grown under open field conditions. On each row, 5 different spacing treatments were applied: control, 2.5 cm, 5 cm, 7.5 cm and 10 cm. Effects of the treatments were analyzed by using analysis of variance and Duncan's test. These analyses showed that the spacing of 7.5 cm resulted in the best seedling based on morphological characteristics. In addition, the quality distribution of these seedlings were determined based on two different quality standards, including TSE 2265 March/1976 and TSE 2265 February/1988. Based on TSE 2265 February/1988, 98% of the seedlings grown at 7.5 cm spacing were graded as 1stclass and the remaining 1% was graded as rejects.