Isolation, Identification and Evaluation of AMF Isolated From Rhizosphere Soils of Cassava Growing Tracts

A study on diversity and density of various AMF strains of cassava, crop in Pathanamthitta district of Kerala was conducted. Rhizhosphere soil samples from 20 locations coming under three types of soil (laterite, forest and alluvial) were analysed. The dominating genera in the all soil type were Glomus which is present in cassava rhizhosphere associated worldwide. Analysis of morphological characters of the spores revealed that isolates are coming under three genera namely Glomus, Aculospora and Gigaspora. On evaluation of soil AMF isolates for the potentiality and effectiveness G. mossae from alluvial soils of Pullupara, G. fasciculatum from laterite soils of Vallikode and G. fasciculatum from laterite soils of Pullad had influenced the growth attributes and nutrient concentration of sorghum.