DEEPALI M. CHANDGUDE, DR. S.K. AHERKAR AND M.P. MOHARIL

To study the role of mulberry cultivar and magnetic field in the protein content in Silk gland of Bombyx mori. L. Silkworm larvae of PM X CSR2 were reared twice on S-41, S-1, Ber-799, Sujanpuri, S-13, S-34 and M-5 mulberry cultivars in permanent magnetic field of 300 G for 24, 12, 6, 3 and 0 hrs daily. The results indicate that there was significant effect on protein content in the silk gland when reared on different cultivars and in magnetic field for different duration. The protein in the silk gland was maximum when they were reared on S-13 mulberry cultivar (513.4 μg) and least in Sujanpuri cultivar (456.7 μg). There was significant increase in silk gland protein when the larvae were reared in magnetic field for 12 hrs (546.1 μg) and least in non-magnetic field (430.4 μg). Rearing of silkworm on S-13 mulberry cultivar and keeping them in 300 gause magnetic field for 12 hrs resulted in highest protein of 586.7 μg in silk gland whereas it was least (415.0 μg) then larvae were reared on Sujanpuri in non-magnetic field.