Studies were initiated with planting mango varieties (Amrapalli, Mallika, Deshari and Langra) during 1990–91 in a spacing of 10m x 10m and raising oats in the inter spaces for grain yield for four years. Growth characters recorded in mango varieties prior to sowing of oat crop each year revealed the superiority of Langra followed by Mallika and Deshari. Lowest growth characters were obtained with Amrapalli. In case of grain yield of oats, it was highest in association with Langra variety of mango and lowest with Mallika variety. Among the rows, as the distance of rows increased from the tree component, the grain yield also increased.
