Optimization of Helicoverpa annigera NPV inoivo mass production and regulation of malodor associated with the process

Shireen Meher, K (2003) Optimization of Helicoverpa annigera NPV inoivo mass production and regulation of malodor associated with the process. Masters thesis, Jawaharlal Nehru Technological University.

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Supervisors

Supervisors NameSupervisors ID
Rao, G V RICRISAT
Amjaneyulu, YJNTU

Abstract

The indigenous production of Heltcoverpn nrnttgcrn nuclear polyhedrosis virus (NPV) has been proficiently employed by several farmers after realising its prominence as a prospective biopesticide. The only issue of concern outlined by them being the malodor associated with the recovery process, which the other farmers in the community often complained with. Also the recovery of the virus needed to be quantitatively optimized to enhance its efficiency and cconomy as a microbial biopesticide. An endeavor has been made in this regard to quantify the viral recovery at diffcrent post inoculation (PI) days to obtain the maximum poly inclusion bodies (PIBs) and to regulate the malodor through several techniques. These studies were conducted at International Crops Research Institute for the Semi-Arid Tropics, Patancheru, Andhra Pradesh. Maximum larval mortality was found to be 88% on 7" day of PI followed by 50% on 6" day of PI. The NPV yield was maximum, 0.70 LE/larva at 71h day followed by 0.64 LE/Iarva at 6b day of PI. The ideal period of viral harvest can be suggested to be 6" day of PI when the mortality percent and NPV yield were in accord for optimal viral recovery to avoid the constraint of malodor associated with the Helicmrpa annigera NPV production.

Item Type: Thesis (Masters)
Divisions: UNSPECIFIED
CRP: UNSPECIFIED
Subjects: Others > Agriculture-Farming, Production, Technology, Economics
Depositing User: Users 6 not found.
Date Deposited: 11 Oct 2011 09:31
Last Modified: 11 Oct 2011 09:31
URI: http://oar.icrisat.org/id/eprint/2282
Acknowledgement: UNSPECIFIED
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