Abstract
Protection of sessile oak (Quercus petraea (Matt.) Liebl.) seeds, which are sown for various purposes such as artificial regeneration, afforestation, rehabilitation, seedling production, and seed supplementation in natural regeneration, from rodents is one of the factors affecting germination and emergence success. In this study, the effects of 12 natural or natural-identical substances (Foeniculum vulgare, Carthamus lanatus L., Ferulago confusa Velen, Heracleum sphandylium L. essential oils, Ferulic acid, 1,8-cineol, Benzothiazole, Capsaicin, Eugenol, Camphor, Pomarsol Forte + alumina powder, Diesel fuel + hair) of different origins—|thought to have a repellent effect—on the germination, emergence and survival characteristics of oak acorns were tested under laboratory and field conditions. The repellent effects of the substances on rodents were tested in the laboratory using the "Y-maze" test. Additionally, a new oak acorn coating equipment and coating method (using diatomaceous clay) was developed and applied to coat sessile oak acorns with these substances. As a result of the research, among the tested substances, Ferulago confusa and Foeniculum vulgare were recommended as rodent repellents due to their success in laboratory germination, field emergence and survival. İt was determined that the germination, emergence and survival percentages of the conventionally applied “Diesel fuel + hair” treatment were lower than the Control and other substances and it did not have a repellent effect on harmfuls.