volume 44 issue 1 (march 2010) : 8 - 13
DIVERSITY IN THE VIRUS YIELD OF HELICOVERPA ARMIGERA NUCLEAR POLYHEDROSIS VIRUS (HANPV) ISOLATES*
1Department of Agricultural Entomology,
University of Agricultural Sciences, Dharwad-580 005, India.
Published In
Indian Journal of Agricultural Research
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volume 44 issue 1 (march 2010) : 8 - 13
DIVERSITY IN THE VIRUS YIELD OF HELICOVERPA ARMIGERA NUCLEAR POLYHEDROSIS VIRUS (HANPV) ISOLATES*
1Department of Agricultural Entomology,
University of Agricultural Sciences, Dharwad-580 005, India.
ABSTRACT
An experiment was conducted to assess the polyhedral occlusion body (POB) yielding capacity of
different isolates in Helicoverpa armigera (Hubner). The average POB yield varied between 8.91X1010
to 2.42X1010 POBs. Gulbarga isolate excelled over other isolates in producing maximum yield which
recorded an average of 8.91X1010 POBs followed by Coimbatore isolate with 7.51X1010 POBs. Further,
Gulbarga isolate recorded four times more POBs yield compared to Kalpavruksha isolate as evident
from the total viral yield in terms of LE. The average POB yield per larvae ranged from 2.11X109 to
1.21X109 POBs. Gulbarga isolate excelled over other isolates in producing highest number of POBs
per larvae (2.11X109 POBs), followed by Coimbatore isolate (1.87X109POBs). The average number of
larvae to yield one larval equivalent ranged between 7.07 to 11.94 larvae. Gulbarga isolate required
on an average 7.09 virosed larvae to produce 6.00X109 POBs as against BPL isolate which required
on an average 11.94 larvae to yield the same amount of virus.
different isolates in Helicoverpa armigera (Hubner). The average POB yield varied between 8.91X1010
to 2.42X1010 POBs. Gulbarga isolate excelled over other isolates in producing maximum yield which
recorded an average of 8.91X1010 POBs followed by Coimbatore isolate with 7.51X1010 POBs. Further,
Gulbarga isolate recorded four times more POBs yield compared to Kalpavruksha isolate as evident
from the total viral yield in terms of LE. The average POB yield per larvae ranged from 2.11X109 to
1.21X109 POBs. Gulbarga isolate excelled over other isolates in producing highest number of POBs
per larvae (2.11X109 POBs), followed by Coimbatore isolate (1.87X109POBs). The average number of
larvae to yield one larval equivalent ranged between 7.07 to 11.94 larvae. Gulbarga isolate required
on an average 7.09 virosed larvae to produce 6.00X109 POBs as against BPL isolate which required
on an average 11.94 larvae to yield the same amount of virus.
REFERENCES
- Gopali, J. B., (1998). Ph. D. Thesis, University of Agricultural Sciences, Dharwad, p. 183.
- Hussain, M. A., et al (2002), J. Entomol. Res. 26: 29-32.
- Jayaraj, S. and Sathiah, N., (1993). In: Proc. National Training on Mass Multiplication of Biocontrol Agents, Tamil
- Nadu Agricultural University, Coimbatore, pp. 1-4.
- Mcintosh, A. H., et al (1987). In: Biotechnology in Invertebrate Pathology and Cell culture. (Maramorosch, K,ed).
- Academic Press, San Diego. pp. 305-325.
- Narayanan, K., (1985). In: Microbial Control and Pest Management, (Jayaraj, S.,ed) Tamil Nadu Agricultural University,
- Coimbatore, pp. 55-59.
- Steinhaus, E. A., (1949). Principals of Insect Pathology. McGraw Hill, New York, p. 757.
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In this Article
APC
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Submit your manuscript through user friendly platform and acquire the maximum impact for your research by publishing with ARCC Journals.
Become a Reviewer/Member
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Finest policies are designed to ensure world class support to our authors, members and readers. Our efficient team provides best possible support for you.
Published In
Indian Journal of Agricultural Research