Gürkan G. Avci

Gürkan G. Avci
Republic of Turkey Ministry of Agriculture and Forestry

About

23
Publications
6,264
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62
Citations
Citations since 2017
13 Research Items
28 Citations
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20172018201920202021202220230123456

Publications

Publications (23)
Article
Full-text available
A 7-year study was conducted to determine nematode species belonging to the Longidoridae and Trichodoridae families in agricultural areas in Thrace, Turkey. For this purpose, soil samples were collected from fruit, vegetable, vineyard, and forest areas. Eleven nematode species belonging to Xiphinema, Longidorus, and Trichodorus were recovered from...
Article
Full-text available
The present study was carried out in the agricultural areas of Northwestern Turkey with the purpose to assess the occurrence of Pasteuria spp. bacteria on plant-parasitic nematodes. The soil samples were collected from olive, cherry, peach, pear, almond, walnut, apple orchards, vineyards, vegetable, and sunflower fields, analyzed and the bacterium...
Article
Full-text available
Nematode species from the genus Meloidogyne Göldi, 1989 are threatening agricultural production especially in greenhouses in Turkey by causing significant yield loss due to root damage and galling. Within a 2 year period of nematological surveys in Northwestern Turkey several Meloidogyne species were identified in vegetable fields and gardens. The...
Article
Full-text available
A study covering cherry, walnut, apple, almond and pear orchards in Edirne, Kırklareli and Tekirdağ provinces was carried out in 2015-2018 with the aim of determination of weed flora, weed frequencies and densities. Total of 64 species belonging to 30 families were identified in fruit tree orchards. Among all the families the most members were in A...
Conference Paper
Full-text available
Many soil-borne pathogens and pests cause damage and yield loss to several crop plants and nematodes are considered as economically one of the most important. Within the Longidoridae family Xiphinema Genera members is considered as serious with species that has ability to transmit several virus diseases to host plants. Predominant grapevine disease...
Article
Full-text available
Introduction The Xiphinema americanum-group is a large group containing 55 nematode species occurring around roots of several plants and trees. 1 The genus consists of migratory ectoparasitic nematodes which cause root galls in young roots by feeding which result in hypertrophy in cell and necrosis. 2 Susceptible roots show symptoms of stunting, sw...
Conference Paper
Full-text available
A survey on the incidence of nepoviruses and vector nematodes were carried out three provinces and nine districts in Northwestern Turkey. The leaf samples were taken from olive, cherry, walnut, peach, almont, apple and pear trees with symptoms such as leaf yellowing, mottling, chlorotic spotting, vein clearing and chlorosis. For nematode screening...
Preprint
Full-text available
Mesocriconema xenoplax dünya genelinde bağ alanlarında yaygın ektoparazit nematod türüdür. Asma köklerinde beslenen bu nematod türünün hücre için temel enerji kaynağı olan glikoz içeriğinde azalmaya neden olmakta, bu azalma etkisiyle bitkinin çevresel ve biyolojik stres faktörlerine duyarlılığı artmaktadır. Edirne Kırklareli ve Tekirdağ İllerinde b...
Preprint
Full-text available
During a nematode survey between 2014-2017, Xiphinema pachtaicum were recovered from rhizosphere of different crop plants in Northwestern Marmara Region, Turkey. Xiphinema pachtaicum found in 80 % of vineyards occuring as most dominant nematode species. A polymerase chain reaction protocol has been developed for the species specific identification...
Article
Full-text available
A survey on the incidence of nepoviruses and vector nematodes were carried out in main grape growing areas of Thrace Region, European part of Turkey. Grapevine Leafroll-Associated Virus and Grapevine Fleck Virus were olso investigated in case of combination with any of nepoviruses on grapevine. On this purpose randomly selected commercial vineyards...
Article
Full-text available
Pesticide drift has always been a serious threat to both living things in the fields and people who are indirectly affected by it. There are many types of pesticide application machines for decreasing of the pesticide drift. One of them is tunnel type pesticide application machine. In this study, increasing the success of the spray application by t...
Article
Full-text available
It is important to know the behaviours of materials used to design and manufacture farm trailers in the same way as is necessary for all mechanical systems. Fatigue tests for trailers give an idea about the behaviours of its components. Simulators are very useful test systems for applying fatigue tests under laboratory conditions. The aim of this r...
Article
Poland's Syndrome consists of unilateral absence of the pectoralis major muscle, ipsilateral symbrachydaktylia, and occasionally associated other malformations of the anterior chest wall and breast. Mild Poland's Syndrome is characterized by asymmetry of the breasts with partial absence of the pectoralis major muscle. This report describes a 19-yea...

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