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 | ||||
| Article 8, Volume 30, Issue 11, November 2005, Page 7141-7146 PDF (1.61 MB) | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/jppp.2005.239427 | ||||
 View on SCiNiTO | ||||
| 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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