Abstract: Purity, viability, vigour, green yield and fibre yield of O-9897 (Corchorus olitorius L.) and CVL-1 (Corchorus capsularis L.) were studied. Different seed categories were breeder seed, foundation seed, certified seed and farmers seed. Purity, viability and vigour of breeder seed were the best in all respects and of farmers seed were poor. However moisture content was the highest in farmers seed and lowest in breeder seed. The 1000 seeds weight was highest in farmers seed among the seed categories and in CVL-1 over the variety O-9897. Base diameter, green yield and fibre yield were influenced significantly due to seed categories studied. The highest fibre yield was obtained from the breeder seed (3.20 t ha-1 in 0-9897 and 2.64 t ha-1 in CVL-1). Declining trend of fibre yield were observed like- breeders seed > foundation seed > certified seed > farmer`s seed as well.