IMPACT OF HIGH TEMPERATURE DURING CHAWKI STAGE ON THE BIOLOGICAL AND COCOON PARAMETERS OF SILKWORM Bombyx mori L

JASMEENA QADIR¹*, NEHA SUDAN², DEEPAK GUPTA³, RABIA SARWAR DAR⁴, HARJEET SINGH⁵, S. MURALI^6
1P.G. Department of Sericulture, Poonch Campus, University of Jammu, Jammu, 180006, India
²P.G. Department of Sericulture, Poonch Campus, University of Jammu, Jammu, 180006, India
³P.G. Department of Sericulture, Poonch Campus, University of Jammu, Jammu, 180006, India
⁴P.G. Department of Sericulture, Poonch Campus, University of Jammu, Jammu, 180006, India
⁵P.G. Department of Sericulture, Poonch Campus, University of Jammu, Jammu, 180006, India
⁶NSSO, Central Silk Board, P2 Basic Seed Farm, Horsley Hills, Kotevuru, 517325 Andhra Pradesh, India
* Corresponding Author : jasmeena.qadir786@gmail.com

Received : 05-12-2022     Accepted : 28-12-2022     Published : 30-12-2022
Volume : 14     Issue : 12       Pages : 12111 - 12113
Int J Agr Sci 14.12 (2022):12111-12113

Keywords : Sericulture, Silkworm, Chawki rearing, High temperature, Optimum
Academic Editor : Dr R. S. Umakanth, A. A. Shahane, Saket Kumar
Conflict of Interest : None declared
Acknowledgements/Funding : Authors are thankful to Regional Sericultural Research Station, Central Silk Board, Miran Sahib, Jammu-181101; P.G. Department of Sericulture, Poonch Campus, University of Jammu, Jammu, 180006, India and NSSO, Central Silk Board, P2 Basic Seed Farm, Horsley Hills, Kotevuru, 517325 Andhra Pradesh, India
Author Contribution : All authors equally contributed

Silkworms are poikilothermous influenced by temperature fluctuations. Failure in maintenance of optimum conditions during chawki can cause significant crop loss. An attempt was made to ascertain the impact of high temperature (30±2?C) during chawki stage on the different parameters of silkworm. An increase in larval weight, disease incidence, defective cocoon percent and decrease in larval duration, cocoon weight, shell weight and shell ratio were recorded when high temperature was induced during chawki. The present study confirms the necessity of maintenance of optimum temperature at chawki stage to obtain the successful cocoon crop

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