Orman Fakültesi Koleksiyonu
Bu koleksiyon için kalıcı URI
Güncel Gönderiler
Öğe Clonal and seasonal genetic variation of major oil components of salvia fruticosa mill(Czech Academy of Agricultural Sciences, 2024-12-23) Uysal, Fatma; Gölükçü, Muharrem; Alan, Murat; Alim, Esra; Turgut, KenanAnatolian sage (Salvia fruticosa Mill.) is widely used in many food, cosmetics, and pharmaceutical sectors. This study aimed to determine the differences in essential oil components and seasonal changes in the components of six clonally selected C-clones and one natural population in a randomized block design with three replications. Samples were collected monthly from C-clones for two years, and essential oil rates were determined. Clonal heritability was between 0.00 and 0.78. When the best clone was selected from six clones, the genetic gain changed from 12.4 to 44.8 for the essential oil components. Assessment of all clones revealed that the time of monthly harvests significantly affected essential oil components. The clone and harvest time interaction caused significant differences in essential oil components, and clones reached the highest values in different months. The correlation analysis showed a significant negative association between camphor and “β-pinene and β-caryophyllene” and a positive association between camphor and essential oil. High variation in the components, the differences in harvest times, and high correlations between components indicated that clones developed by selection have a significant production potential.Öğe Forest fire management in Türki̇ye: problems and solution suggestions(Yerel Yönetim Araştırma Yardım ve Eğitim Derneği, 2024-12-18) Güngöroğlu, Cumhur; Özkara, Zülfi Umut; Tutmaz, VehbiThe fact that forest fires are primarily human-induced and reach disaster proportions due to meteorological anomalies necessitates participatory management in combating fires. In Türkiye, the discipline of management and organization where all stakeholders evaluate problems, make common and applicable decisions, and implement them is insufficient. This study first addressed the current situation regarding forest fire problems in our country. Subsequently, a SWOT analysis of the General Directorate of Forestry’s efforts to combat forest fires was conducted using secondary data sources. From this point, institutional duties, organizational and coordination principles for governance issues before, during, and after the fire were determined. Additionally, solution proposals including inter-institutional integrated, common language legal regulations and action plans, as well as personnel-equipment, technical and administrative practices were developed.Öğe Identification of fusarium wilt disease causal agents in pistachio fields and determination of efficacy of some fungicides controlling of the disease(2024) Sarpkaya, Kamil; Tanrıöver, Ceren; Can, CananPistachio (Pistacia vera) propagation is commonly carried out by seedlings and new orchards are mostly set by in situ grafting of rootstocks. Pathogenic and molecular characterization of wilt and desiccation agents observed in nurseries and young orchards were carried out and the causal species were identified as Fusarium oxysporum and F.solani. In vitro inhibition of mycelial development and conidia germination were carried out with seven fungicides selected against the disease. The plant protection product containing Prothioconazole+Spiroxamine was found to be 100% effective in mycelial growth trials in F.oxysporum isolates from 20 mgL⁻¹ and in F.solani from 100 mL-1 at all increasing doses. . The fungicide containing phosphoric acid was found to be 18.3-33.3% effective on both species at 2.5 times the recommended dose. On conidial germination, Prothioconazole+Spiroxamine and Captan provided 100% inhibition even at the lowest doses in all isolates tested. The EC₅₀ values of Prothioconazole+Spiroxamine, which was determined as the most effective chemical in mycelial development and conidial germination, were 3.67 ml and 3.72 ml in F.oxysporum isolates and 56.83 ml in F.solani, respectively. Antepfıstığı (Pistacia vera) fidan üretimi yaygın olarak çöğürlerle yapılmakta ve yeni tesis bahçeler çoğunlukla aşısız dikilen anaçların daha sonra yerinde aşılanmasıyla kurulmaktadır. Fidanlıklarda ve genç bahçelerde yapılan incelemelerde görülen solgunluk ve kuruma etmenlerinin patojenik ve moleküler karakterizasyonları gerçekleştirilerek etmen türlerin Fusarium oxysporum ve F.solani olduğu tespit edilmiştir. Hastalığa karşı seçilen yedi adet fungusitle in vitro düzeyde miseliyal gelişimin inhibisyonu ve konidi çimlenmesinin engellenmesi üzerine çalışmalar yürütülmüştür. Prothioconazole+Spiroxamine etkili madde içeren bitki koruma ürünü, miseliyal gelişim denemelerinde F.oxysporum izolatlarında 20 mgL⁻¹’den itibaren, F.solani’de ise 100 mgL⁻¹’den itibaren artan tüm dozlarda %100 etkili bulunmuştur. Fosforöz asidi içeren fungisit, tavsiye dozunun 2,5 katında her iki tür üzerinde %18,3-33,3 oranlarında etkili bulunmuştur. Konidiyal çimlenme üzerinde Prothioconazole+Spiroxamine ve Captan denemeye alınan tüm izolatlarda en düşük dozlarda bile %100 inhibisyon sağlamıştır. Miseliyal gelişim ve konidi çimlenmesinde en etkili kimyasal olarak belirlenen Prothioconazole+Spiroxamine’nin EC₅₀ değerleri sırasıyla F.oxysporum izolatlarında sırasıyla 3,67 ml ve 3,72 ml ve F.solani izolatında ise 56,83 ml olarak tespit edilmiştir.
