What is VAM ?

Explanation

VAM means Vesicular Arbuscular Mycorrhizae. Mycorrhiza is a fungus. It forms symbiotic association with the roots of higher plants.
It grows in between and within the cortical cells of roots. Fungal hyphae penetrate the cells and form vesicles or finely branched arbuscles. Hence they are called versicular Arbuscular Mycorrhizae or VAM. The plants with VAM grow luxuriantly in less irrigated lands.