Diversity of arbuscular mycorrhizal fungi under the rhizosphere soil of different cropping systems

Abstract

This study has been conducted to evaluate the diversity of Arbuscular Mycorrhizal Fungi (AMF) under the rhizosphere soil of different monocrops in the grazing and croplands. A descriptive cross-sectional survey was employed to understand the rate of root colonization and diversity of AMF. 23 different types of AMF morphospecies in 12 AMF genera were isolated across 12 different types of land covers. The AMF under the rhizosphere soil of Eucalyptus tree has shown the highest biomass compared to all other land uses, with spore density of 1907.4±0.404 100g-1 of dry soil. The lowest AMF biomass has been recorded in the rhizosphere soil of the Mango tree, with a spore density of 260.1±0.121 100g-1 dry soil. The total root colonization (RLC) of the various land covers by AMF ranges from 11.15-85.41%. Finally, further study on the implication of agricultural inputs on the microbial community under different cropping systems is recommended.

Keywords

• arbuscular mycorrhizal fungi
• colonization
• diversity
• hawassa
• spore density