Alan, Murat2024-09-292024-09-2920171303-2399https://doi.org/10.17475/kastorman.288926https://hdl.handle.net/20.500.14619/6882Aim of study: The intention of current study is to compile information on female fertility variation and estimate some parameters related to fertility in the seed orchard for 2015. Area of study: The seed orchard was established in April 2004 in Eflani of Karabuk, Turkey. Material and Methods: The seed orchard included 823 ramets of 26 clones at 5m x 5m. Five ramets per clone were chosen randomly and female strobili in 130 ramets were counted in June 2015. All of the female strobili over the entire crown were counted on all chosen ramets. Female fertility variation, status number and relative status number were estimated. Main results: Average numbers of female strobili per clone were ranged from 4.2 to 75.0. The most fertile clone was #351, the less fertile one was #354. The top 30% of clones produced 50.6% of total female strobili. Most of female strobili were appeared single but the rest of them were formed clusters. Number of strobilus of clusters was ranged from 2 to 15. In analyses of variance, differences in clonal female strobilus production were not statistically significant (P=0.07). Female fertility variation (psi(f)) effective status number (N-s) and relative status number (N-r) were 2.14, 12.15 and 0.48, respectively indicating low genetic diversity Research highlights: Compiled first information on female fertility in the frame of this research can be used for management of the seed orchard on conservation and landscape.eninfo:eu-repo/semantics/openAccessSeed orchardfemale fertility variationstatus numberrelative status numberScots pineArticle10.17475/kastorman.288926478347417WOS:000425843500013N/A