N. Suresh and R. Nelson
The present study deals with the diversity and distribution of AMF in the rhizosphere soil of sugarcane in different sites in Ariyalur, Perambalur and Thanjavur districts of Tamil Nadu. S. India. The results revealed variation in AM spore population, root colonization and number of AM fungal species in different sampling season. Higher spore population and number of AM fungal species was recorded in the rainy season (August to October), minimum were recorded in the winter season (November to February) and lowest were recorded in the summer season (March to May). Altogether twenty five different AM fungal species belonging to four genera viz., Glomus, Gigaspora, Acaulospora and Scutellospora were characterized. They showed variable distribution pattern. It was observed that Glomus was the most dominant genus in the rhizospheric soil of sugarcane. Glomus aggregatum, G. mosseae and G. fasciculatum were identified in all the sampling seasons.
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