The present investigation was conducted during spring summer season of 2012- 2013 and 2013-2014 over six environments to study stability of 25 genotype of tomato for quality traits. Genotypes × environment interaction was significant for lycopene, betacarotene and ascorbic acid which indicated the differential response of genotype to various environment conditions and non significant for number of locules per fruit, pericarp thickness, total soluble solids and fruit pH. None of the genotypes was stable for all the traits and stability for one trait was independent of stability for other traits. | Stability analysis and genotype x environment interaction of quality traits in tomato Solanum lycopersicum L.