This study was initiated with a view to find out cross compatibility, self-sterility and pollen viability in six mango, Mangifera indica cultivars namely, Anwar Rataul (V1), Dusehri (V2), Malda (V3), Neelum (V4) and Samar Bahisht (V5) by using Langra (V6) as male parent. The results obtained indicated that maximum (51.40%) fruit set was noted in V1 and this was followed by V2, V4, V5 and V3 with 41.80, 41.40, 10.40 and 9.40 %, respectively. There was statistically non-significant difference in respect of fruit drop at pea stage. The varieties regarding fruit set by selfing portrayed a sequence of V4, V6, V3, V5, V2, and V1 in descending order giving 2.25, 2.05, 0.60, 0.50, 0.37 and 0.22 %, respectively. Pollen viability by staining with acetocarmine showed that V6 had the highest number of viable pollens followed by V4 with 95 and 91.30 percent. Similarly pollen viability with iodine gave almost the identical results as that of acetocarmine. Pollen viability on the basis of pollen germination in various concentrations of sucrose solution showed that Langra and Neelum gave the highest pollen germination in 7.5 % sucrose.

Key words: Mango, Mangifera indica, Cross compatibility, Self sterility, Pollen viability