Study of fungal population in Citrus aurantium root soil

Abstract

In this study , we collected 44 soil samples of Citrus aurantium, (22 samples from non – rhizosphere and 22 samples from rhizoplane) from Abi- Gharaq in Babylon province to Study fungal population & Environmental conditions which include temperature & Humidity from October / 2011 to February / 2012. We obtained 678 fungal strain back to 10 genera and yeasts and some strain didn’t diagnosis . Deutromycota was the higher ratio with 72.91 % then Oomycota with 40.1 % , Zygomycota 6.89 % finally Ascomycota 6.49 % . This study showed that Aspergillus niger was the higher frequency in both zone with 53.8 % and Mucor was the lower frequency from registered fungi with ratio 0.5% .