The main objective of the present study was to evaluate the effect of genetic and non-genetic factors on wool production and quality traits in Magra sheep. The least-squares mean for greasy fleece yield at first, second and third clip were observed to be 690.50 ± 4.71, 754.83 ± 5.57 and 670.93 ± 5.39 g, respectively. The least-squares means were observed to be 6.26 ± 0.04 cm, 0.92 ± 0.01 per cm and 33.31 ± 0.13 ì for staple length, crimp frequency and fibre diameter, respectively; and 54.74 ± 0.59, 33.25 ± 0.42, 12.01 ± 0.29 and 45.26 ± 0.59% for the percentage of pure, hetro, hairy and medullated fibres, respectively The effect of sire was observed to be highly significant (P≤0.01) on all the wool traits under study. The effect of period of shearing was found highly significant (P≤0.01) for all the wool traits except at greasy fleece yield at third clip and fibre diameter. The effect of sex was found highly significant (P≤ 0.01) on greasy fleece yield at different clips and crimp frequency; and significant (P≤ 0.05) on fibre diameter. The effect of season of birth was found highly significant (P≤ 0.01) for all the wool traits except for pure, hetro and medullation percentage. The effect of lamb's age at shearing had highly significant (P≤0.01) effect on greasy fleece yield at different clips, crimp frequency and hetro fibres; and significant (P≤0.05) effect was found on medullation percentage. The significant factors should be given due importance in general management in order to obtain higher wool production and better wool quality. [ABSTRACT FROM AUTHOR]