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Abstract
The impact of dark and light exposure on life cycle duration (days) were studied on Eri silk worm (Philosamiaricini) at Zoology Department Govt. P.G. Madhav Science College Ujjain. The diseases free laying (DFL’s) were collected from Govt. Sericulture Dept. Indore. Worms were reared under hygienic laboratory conditions. The optimum 25± 2°C temperature and 75±5% Relative humidity were maintained during complete in control, dark (24 hours) and complete light (24hours) condition. The duration of life cycle of the larvae reared in dark was significantly better than the larvae kept in light condition.
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References
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References
Anonymous,1990.Sericulture in Pakistan.Pakistan. J. Forestry. 4(2): 23-27.
Anonymous, 1998. Encarta Concise Encyclopedia Articles http://encarta.msn.com
Bratton J.H., 1990. A Review of the Scarcer Ephemeroptera and Plecoptera of Great Britian. Research and Survey in Nature Conservation NCC.
Choudhary S. N., 1982. Eri Silk industry. Published by Directorate of Sericulture and weaving Government of Assam. 16-25.
Crowson R.A., 1981. The biology of coleopteran, New York Press.
Fukuda T., 1960. Biochemical studies on formation of Silk protein. Part 9th. The direct and indirect Formation of the silk protein during growth of silkworm larva. Bullet Agric. Chemistry Society Japan. 24:396-401.
Hoffman S. and Subramanian G.M., 2005. Light Deprivation Affects Larval Development and Arresting Gene Expression in Anopheles stephensi. Journal of Medical Entomology, 42(5):801-804.
Ishfaq M. and Akram W., 1999. Reshumkaykerhun key Parwarish (Urdu). 1st Edition. Pak Book Empire Publishing, Lahore.pp 11-12.
Itoh M.T., Nomura T. and Sumi Y., 2004. Hydroxyindole-O-methyltransferase activity in the silkworm bombyx mori Department of Chemistry , St. Marianna University School of Medicine, Sugao, Miyamae-ku , Kawasaki 216, japan.
Krishnaswami N.S., 1973 and Kumararaj. Manual of Sericulture, Vol. 2 silkworm rearing, F.A.O. United Nation , Rome, 121pp.
Mehmood, Ahmed and Gilani., 1987. Effect of Feeding Leaves of Morus alba and Morus leavigata on Larval Growth and Silk Yield of Silkworm, Bombyx mori , Pakistan J. Zool. 19 (3):239-243.
Savela M., 1998. http://www.funet.fi/pub/sci/bio/life
Toheed I., Mian I., Amna S. and Imtiaz A., 2008. Effect of light and dark exposure on the different Life parameters of silkworm, Bombyx mori L. Sarhad J. Agric Vol.24,No.1