Seed orchards are an important seed source because they have the most important link between tree breeding and plantation forestry. The aim of this study is to evaluate the potential of Adaptive Neuro-Fuzzy Inference Systems of artificial neural networks to predict the amount of cone in clonal seed orchards of Anatolian black pine. It was found that the coefficient of determination (R 2 ), the mean absolute error (MAE) and the root mean square error (RMSE) of the artificial neural network model were 0.85, 14.83 and 18.85, respectively. The amount of cone in clonal seed orchards of Anatolian black pine was predicted with high efficiency through artificial neural networks. Considering the lack of forestry studies based on the artificial neural network, this study will enable further researches to provide a new perspective.

SUMMARYIn this research, the effects of magnetic field generated by Schlöder MGA 1033 magnetic field simulator model on germination percentage of the seeds of oriental beech (Fagus orientalis Lipsky.) and on the development of seedlings are investigated. In this respect, differences emerged in percentages of seeds applied with magnetic field in proportion to control group. accordingly, it has been determined that the germination percentage of the seeds that have been applied with magnetic field since 10 th week has reached much higher levels in proportion to those in control group. Accordingly, it has been found that the germination percentages of beech seeds applied with magnetic field for 15 and 20 times were much higher than the germination percentages of those located in control parcel and not exposed to magnetic field. The root length of the oriental beech seedlings emerging as a result of the germination of the seeds was investigated as a development and growth parameter. Accordingly, it has been found that the root length of the seedlings emerged as a result of the germination of the seeds exposed to magnetic field for 5 times was longer than that of seedlings in control group and other magnetic field application groups (9.2 cm). It has been determined that the number of seedlings emerging as a result of germination of the seeds in control parcel was much higher than the number of seedlings in magnetic field application parcels (mean 65.2 pcs). According to these investigations, the beech seedlings in control parcels took place in first group (mean 17.2 cm).