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Aly, S. (2005). EFFECT OF PHOTOPERIOD ON SOME BIOLOGICAL PARAMETERS AND UTILIZATION OF FOOD OF THE MULBERRY SILKWORM Bombyx morl L. (LEPIDOPTERA: BOMBYCIDAE). Journal of Plant Protection and Pathology, 30(11), 7141-7146. doi: 10.21608/jppp.2005.239427
Somaia E. Aly. "EFFECT OF PHOTOPERIOD ON SOME BIOLOGICAL PARAMETERS AND UTILIZATION OF FOOD OF THE MULBERRY SILKWORM Bombyx morl L. (LEPIDOPTERA: BOMBYCIDAE)". Journal of Plant Protection and Pathology, 30, 11, 2005, 7141-7146. doi: 10.21608/jppp.2005.239427
Aly, S. (2005). 'EFFECT OF PHOTOPERIOD ON SOME BIOLOGICAL PARAMETERS AND UTILIZATION OF FOOD OF THE MULBERRY SILKWORM Bombyx morl L. (LEPIDOPTERA: BOMBYCIDAE)', Journal of Plant Protection and Pathology, 30(11), pp. 7141-7146. doi: 10.21608/jppp.2005.239427
Aly, S. EFFECT OF PHOTOPERIOD ON SOME BIOLOGICAL PARAMETERS AND UTILIZATION OF FOOD OF THE MULBERRY SILKWORM Bombyx morl L. (LEPIDOPTERA: BOMBYCIDAE). Journal of Plant Protection and Pathology, 2005; 30(11): 7141-7146. doi: 10.21608/jppp.2005.239427

EFFECT OF PHOTOPERIOD ON SOME BIOLOGICAL PARAMETERS AND UTILIZATION OF FOOD OF THE MULBERRY SILKWORM Bombyx morl L. (LEPIDOPTERA: BOMBYCIDAE)

Article 8, Volume 30, Issue 11, November 2005, Page 7141-7146  XML PDF (1.61 MB)
Document Type: Original Article
DOI: 10.21608/jppp.2005.239427
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Author
Somaia E. Aly
Dept. of Economic Entomology, Fac. of Agric., Alexandria Univ., Egypt
Abstract
The effect of photoperiod on the relative developmental speed of fifth instar
larvae of mulberry silkworm Bombyx moti were studied. Tested photoperiodic
conditions were: 24 hours lightO hours darkness(24L:OD), (12L:12D) and OL:24D).
The mean weight of each of mature larvae, pupae, shell cocoon and silk glands
significantly increased under complete darkness. Also, the other biometric
measurements,i.e, the total mean laid eggs/female and utilization of food increased
significantly under complete darkness compared with those reared under other tested
photoperiods.
Keywords
Bombyx mori; Photoperiod; Utilization of food
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