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Alfalfa (Medicago sativa L.), which is one of the most cultivated plants among the forage crops in our country and other developed countries, and known as the queen of forage crops, has attracted attention in recent years on organic... more
Alfalfa (Medicago sativa L.), which is one of the most cultivated plants among the forage crops in our country and other developed countries, and known as the queen of forage crops, has attracted attention in recent years on organic agricultural production and sustainability of agricultural lands. Many factors cause pathogenic effects in alfalfa. These are non-parasitic agents, parasitic disease agents fungi, bacteria, viruses, mycoplasma-like organisms, nematodes, and parasitic plants. Among them, fungi constitute an important group (Graham et al. 1979). The importance of disease factors that can occur in such a beneficial plant, the diagnosis of these factors, and the necessary management of them on time are of great value for obtaining quality products and for the country's economy.
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Macrophomina phaseolina (Tassi) Goid. is a fungal pathogen causes significant economic losses, including root and hypocotyl rot, root collar and stem blight, which are common in bean production areas. In this study, 24 bean genotype... more
Macrophomina phaseolina (Tassi) Goid. is a fungal pathogen causes significant economic losses, including root and hypocotyl rot, root collar and stem blight, which are common in bean production areas. In this study, 24 bean genotype developed by the Black Sea Agricultural Research Institute and M. phaseolina isolate M1 isolated from bean cultivation areas were used. This research was carried out with pot experiments in climatic chamber conditions to determine the reactions of some bean (Phaseolus vulgaris L.) genotypes against M. phaseolina, which causes charcoal rot disease in beans. Among the bean genotypes evaluated within the scope of the study, KMF-11-30 and ARSLAN genotypes were found to be tolerant, while the 20-BBarBVD-10 genotype was found to be resistant.
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Bu çalışma, Avrupa ayçiçeği güvesi [Homoeosoma nebulellum (Den. & Schiff.)]’nin Ankara ili ayçiçeği (Helianthus annuus L.) ekiliş alanlarındaki zararı ile ayçiçeğinde verim kaybına neden olan Tabla çürüklüğü hastalığı (Rhizopus spp.) ile... more
Bu çalışma, Avrupa ayçiçeği güvesi [Homoeosoma nebulellum (Den. & Schiff.)]’nin Ankara ili ayçiçeği (Helianthus annuus L.) ekiliş alanlarındaki zararı ile ayçiçeğinde verim kaybına neden olan Tabla çürüklüğü hastalığı (Rhizopus spp.) ile arasındaki ilişkinin belirlenmesi amacıyla 2013 ve 2014 yıllarında yürütülmüştür. Ayçiçeği ekilişinin yoğun olarak yapıldığı Ayaş, Bala, Beypazarı ve Kalecik ilçelerinde yapılan sürvey ve örneklemelerden elde edilen veriler değerlendirilmiştir. H. nebulellum’un, Ankara ilinde yaygınlığı her iki yılda %100 olarak tespit edilmiştir. Zararlının bulaşma oranları ise 2013 yılında %3.74, 2014 yılında %3.80 olarak saptanmıştır. Ankara ilinde Tabla çürüklüğü hastalığına neden olan türün Rhizopus stolonifer (Ehrenb.) Vuill. olduğu ve yaygınlığının 2013 yılında %76.68, 2014 yılında %70.42 olduğu tespit edilmiştir. Hastalığın bulaşma oranı ise 2013 yılında %4.08, 2014 yılında %4.04 olarak belirlenmiştir. Elde edilen sonuçlara Ki-kare kökenli ilişki katsayısı t...
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Ak üçgül (Trifolium repens) çok yıllık bir baklagil bitkisidir ve esas olarak bir yem bitkisidir. Aynı zamanda toprak yüzeyini çok iyi kaplayan, basmalara dayanıklı, kısa ve güzel görünümlü bir bitki olduğundan, çevrecilerin, park bahçe... more
Ak üçgül (Trifolium repens) çok yıllık bir baklagil bitkisidir ve esas olarak bir yem bitkisidir. Aynı zamanda toprak yüzeyini çok iyi kaplayan, basmalara dayanıklı, kısa ve güzel görünümlü bir bitki olduğundan, çevrecilerin, park bahçe ve oyun alanları tasarımcılarının da en çok aradığı ve kullandığı bitkilerden biridir. Gölgeye toleransı nedeniyle, ağaçlarda ve meyve bahçelerinde veya çim alanlarının oluşturulmasında örtü bitkisi olarak kullanılmaktadır. 2015 yılında İstanbul, Antalya, Ankara, İzmir, Kayseri, Bursa, Aydın, Muğla illerinde bulunan parklar, bahçeler, golf sahaları, rekreasyon alanları, stadyumlar, piknik alanları ve refüjlerden oluşan çim alanlarına surveyler düzenlenmiştir. Survey alanları incelenerek, bodurlaşma, solgunluk, yaprak sararması, lekelenme, yanıklık, kök ve kökboğazı lezyonları gibi belirti gösteren toplam 60 adet ak üçgül (Trifolium repens L.) örneği toplanmıştır. Bu bitkilerden yapılan izolasyonlar ve DNA sekans analizleri sonucunda Rhizoctonia solan...
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Carrot ( Daucus carota var. sativus) is widely planted in the Ankara provinces. In order to identify species of Alternaria causing disease on root and foliage, surveys of carrot production areas in Ayas and Beypazari districts of Ankara... more
Carrot ( Daucus carota var. sativus) is widely planted in the Ankara provinces. In order to identify species of Alternaria causing disease on root and foliage, surveys of carrot production areas in Ayas and Beypazari districts of Ankara province between June and November in 2008–2009 were undertaken. Sixty isolates of Alternaria spp. have been obtained from necrotic lesions on the leaves and roots. Alternaria radicina, A. alternata, A.tenuissima and A.dauci were isolated from symptomatic plants collected in our survey and the pathogenicity of fungi have been tested. Species identification was done based on culture and conidial morphology, growth rate and rDNA sequences. Pathogenicity test such as hypocotly test, carrot disc method, 6–8 weekly seedling andplant test were conducted Isolates of A.radicina, A.dauci were shown high virulence although Alternaria alternata were found as moderately or low virulence.
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Pseudocercospora griseola , the causal agent of angular leaf spot, caused important damage in domestic varieties and was first identified in Caycuma district of Zonguldak province in Turkey. This pathogen has caused serious damage on... more
Pseudocercospora griseola , the causal agent of angular leaf spot, caused important damage in domestic varieties and was first identified in Caycuma district of Zonguldak province in Turkey. This pathogen has caused serious damage on local bean genotypes in the province. The disease begins as angular spots on leaves which is followed by quick death of leaves and it causes deep brown wounds on capsules. Since chemical control is not recommended for the disease in Turkey, it causes severe yield and economic losses. Besides, because the producers use domestic seeds, the infected seeds will increase the inoculum source year by year and distribute the disease to close by provinces. With this project, chemical control possibilities of P. griseola that is the causal agent of angular leaf spot in locally grown bean genotypes were investigated. Chemicals were applied as seed treatment and foliar spraying. The trials were carried out in Caycuma and Gokcebey the district of Zonguldak in 2010, ...
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Chemical control possibilities of angular leaf spot disease caused by Pseudocercospora griseola, on common beans in Western Black Sea Region Pseudocercospora griseola, the causal agent of angular leaf spot, caused important damage in... more
Chemical control possibilities of angular leaf spot disease caused by Pseudocercospora griseola, on common beans in Western Black Sea Region Pseudocercospora griseola, the causal agent of angular leaf spot, caused important damage in domestic varieties and was first identified in Çaycuma district of Zonguldak province in Turkey. This pathogen has caused serious damage on local bean genotypes in the province. The disease begins as angular spots on leaves which is followed by quick death of leaves and it causes deep brown wounds on capsules. Since chemical control is not recommended for the disease in Turkey, it causes severe yield and economic losses. Besides, because the producers use domestic seeds, the infected seeds will increase the inoculum source year by year and distribute the disease to close by provinces. With this project, chemical control possibilities of P. griseola that is the causal agent of angular leaf spot in locally grown bean genotypes were investigated. Chemicals...
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Powdery mildew disease (Erysiphe heraclei) causing significant damage in carrot production areas. Therefore, chemical control possibilities against of Erysiphe heraclei were investigated with sulfur, penconazole, azoxystrobin,... more
Powdery mildew disease (Erysiphe heraclei) causing significant damage in carrot production areas. Therefore, chemical control possibilities against of Erysiphe heraclei were investigated with sulfur, penconazole, azoxystrobin, trifloxystrobin carbendazim and boscalid+pyraclostrobin. In both years, sulfur and azoxystrobin showed the highest effect in control of the disease with %86.34 to %88.53 and %84.65 to %83.72, respectively. trifloxystrobin, carbendazim and penconazole provided 76.91% to 77.08%, 71.20% to 69.60% and 61.82% to %58.39% control, respectively. boscalid+pyraclostrobin sprayed only one year had %59.41 effect.
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Ankara ili Ayas ve Beypazari ilceleri havuc ekilis alanlarinda gorulen fungal yaprak hastaliklarini tespit etmek amaciyla 2008–2009 yillarinin Haziran ile Kasim aylari arasinda survey yapilmistir. Yapilan survey calismalari sonucunda... more
Ankara ili Ayas ve Beypazari ilceleri havuc ekilis alanlarinda gorulen fungal yaprak hastaliklarini tespit etmek amaciyla 2008–2009 yillarinin Haziran ile Kasim aylari arasinda survey yapilmistir. Yapilan survey calismalari sonucunda oldukca genis ekim alanina sahip olan Beypazari'nda yaprak yanikligi (Alternaria spp.) ve kullemenin (Erysiphe heraclei) yayginlik oranlari sirasiyla %2.67 ve %9.47 olarak bulunmustur. Ayas'ta ise kullemenin daha yaygin (%29.33) oldugu, bunu yaprak yanikliklarinin (%3.48) izledigi gozlenmistir.
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Sebzeler içerdikleri karbonhidrat, yağ, protein, vitamin ve mineraller gibi makro ve mikro besinler açısından insan beslenmesi için önemlidir. Sebze üretiminde fungal hastalıklar büyük ekonomik kayıplara yol açabilmektedir, bu kayıpları... more
Sebzeler içerdikleri karbonhidrat, yağ, protein, vitamin ve mineraller gibi makro ve mikro besinler açısından insan beslenmesi için önemlidir. Sebze üretiminde fungal hastalıklar büyük ekonomik kayıplara yol açabilmektedir, bu kayıpları engellemek için bitki koruma çalışmaları büyük önem arz etmektedir. Bu çalışmada marul, nane, maydanoz, dereotu, roka ve tere üretimini kısıtlayan faktörlerin başında gelen fungal hastalıkların ve yaygınlıklarının belirlenmesi amaçlanmıştır. Orta Anadolu Bölgesi’nde yapılan bu çalışmada, Eskişehir, Ankara ve Konya illerinde 2015-2017 yılları arasında çalışmalar yürütülmüş, saptanan fungal hastalık etmenlerinin morfolojik teşhisleri yapılmış, patojenisite denemeleri yürütülmüş ve bölgedeki yaygınlık oranları belirlenmiştir. Hastalık belirtisi gösteren bitkilerden izolasyonlar yapılmış, elde edilen izolatlar eğik agar, -20 ºC ve -80 ºC’de saklanmıştır. Çalışmalar sonucunda marul örneklerinde Sclerotinia sclerotiorum, Rhizoctonia solani, Alternaria alte...
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