Abstract
The species composition and dispersion of arbuscular mycorrhizal fungi (AMF) spores belonging to 5 genera varied significantly (p< 0.001) greater number of AMF species comparatively higher organic matter, soil moisture, slightly basic pH and low percentage of soluble salts (SS) whereas the Jacobabad district showed least dispersion (R= 560) with lowest number of AMF species having low organic matter, soil moisture but higher soil pH and higher percentage of SS. The genus Glomus was found to be the most predominant and genus Acaulospora was the least frequent. Among the 22 species, Glomus mosseae was the most prevalent whereas Acaulospora gdanskensis was the least occurring species.
