Effecting Soil Factors on the Occurence and Distrubition of Entomopathogenic Fungi at Erzincan

Abstract

In this study, it was investigated the effect of soil factors on the occurrence and distribution of entomopathogenic fungi (Epf) isolated from Erzincan soils. For this purpose, 60 soil samples were collected from cultivated and natural areas. Two epf species, Beauveria bassiana (balsamo) Vuillemin and Metarhizium anisopliae (Metschnikoff) Sorokin, were isolated from the soils. Chi-square test was conducted to examine the effects of different soil habitats and sub-habitats on the occurrence and distribution of fungi. There is no statistically significant difference between the soil habitat on the occurrence and distribution of B.bassiana (x2 =, 000, p> .005), but, it was determined that there is a statistically significant difference between the soil habitat on the occurrence and distribution of M. anisopliae (x2 = 7.680, p <.005). Among the sub-habitats, it has been determined that the field areas have an effect on the occurrence and distribution of M. anisopliae. As a result of the t-test, it was determined that organic matter, soil saturation, soil texture, and phosphorus were effective on the occurrence and distribution of B. bassiana, while soil saturation and soil texture were effective on the occurrence and distribution of M. anisopliae.

Keywords

• Beauveria bassiana
• Metarhizium anisoplia
• soil factors
• Erzincan

Erzincan’da Entomopatojen Fungusların Oluşumuna ve Dağılımına Etki Eden Toprak Faktörleri

Öz

Bu çalışmada, Erzincan topraklarından izole edilen entomopatojen fungusların (Epf) oluşumuna ve dağılımı üzerine toprak faktörlerinin etkisi incelenmiştir. Bu amaçla ekili ve doğal alanlardan toplanan 60 toprak örneği incelenmiştir. Topraklardan Beauveria bassiana (balsamo) Vuillemin ve Metarhizium anisopliae (Metschnikoff) Sorokin olmak üzere iki epf türü izole edilmiştir. Farklı toprak habitat ve sub-habitaların fungus oluşumuna ve dağılımına etkisini incelemek için Ki-kare testi yapılmıştır. Toprak habitatı ile B. bassiana’nın oluşumu ve dağılımı arasında istatiksel olarak anlamlı bir fark olmadığı (x2=,000, p>.005), M. anisopliae’nin oluşumu ve dağılımı ile toprak habitatının arasında istatiksel olarak anlamlı bir fark olduğu belirlenmiştir (x2=7,680, p<.005). Sub-habitatlardan ise tarla alanların M. anisopliae’nin oluşumu ve dağılımı üzerinde etkisi olduğu belirlenmiştir. Yapılan t-testi sonucunda ise, organik maddenin, toprak saturasyonunun, toprak tekstürü ve fosforun B. bassiana’nın oluşumu ve dağılımında etkili olduğu belirlenirken, toprak saturasyonunun ve toprak tekstürünün ise, M. anisopliae’nin oluşumu ve dağılımı üzerine etkili olduğu belirlenmiştir.

Anahtar Kelimeler

• Beauveria bassiana
• Metarhizium anisoplia
• toprak faktörleri
• Erzincan

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