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Chouhan, Sahadev
- Vegetation Diversity and Socio-economic Profile Relations in some Selected Villages of Indian Desert
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Indian Forester, Vol 134, No 6 (2008), Pagination: 744-756Abstract
Socio-economic and floral diversity survey in some selected villages of Bikaner area of Indian Desert was done in December 2001 with a view to assess the relationship between vegetation and socio-economic status and suggest management strategy in the area. The area had low floral diversity whereas agriculture and livestock rearing were the main resources of livelihood. Livestock to human population ratio was 1.5 with a total annual requirements of fodder and fuelwood were 0.11 lakhs tonnes and 3905.50 tonnes, respectively, though the people are also using animal dung at the rate of 1163.96 tonnes in these villages. This caused over-exploitation of existing vegetations, which are less both in number and abundance. P. cineraria and T. undulata are trees and Z. mauritiana is shrub of irrigated agricultural land. These species along with C. polygonoides, L. sindicus and C. jwarancusa are decreasing in the area as a result of their removal to cultivate cash crops like A. hypogea and R. communis in agriculture land and over-grazing/over-exploitation in forest lands and CARs. The removal and overexploitation of vegetations are resulting in land degradation and encroachment of more adaptable and less values species like P. juliflora, L. pyrotechnica, A. pseudotomentosa, C. burhia, D. sindicum and A. hyrsticula in the forest and CARs areas. Hence protection and conservation of natural vegetation are needed to enhance plant diversity and productivity in the area. The improvement in land status and productivity of common property resources through afforestation and resource management would influence the economy and the living standard of these desert dwellers without deteriorating land resources.Keywords
Indian Desert, Vegetation Diversity, Socio-economic Profile
- Comparative Efficacy of Chloropyriphos and Thiamethoxam against Insect Pests in Forest Nurseries
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Indian Forester, Vol 132, No 2 (2006), Pagination: 248-250Abstract
No abstract- Prevalence and molecular characterization of viruses causing diseases in Bombyx mori L. (Lepidoptera: Bombycidae) from different climatic regions of India
Abstract Views :252 |
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Authors
Mudasir Gani
1,
A. V. Mary Josepha
2,
L. Satish
2,
Sahadev Chouhan
1,
Mallikarjun Gadwala
2,
Mir Nisar Ahmad
1,
V. Sivaprasad
2
Affiliations
1 Central Sericultural Research and Training Institute, Central Silk Board, Ministry of Textiles, Government of India, Pampore – 192 121, Jammu and Kashmir, IN
2 Central Sericultural Research and Training Institute, Central Silk Board, Ministry of Textiles, Government of India, Srirampura, Mysore – 570 008, Karnataka, IN
1 Central Sericultural Research and Training Institute, Central Silk Board, Ministry of Textiles, Government of India, Pampore – 192 121, Jammu and Kashmir, IN
2 Central Sericultural Research and Training Institute, Central Silk Board, Ministry of Textiles, Government of India, Srirampura, Mysore – 570 008, Karnataka, IN
Source
Journal of Biological Control, Vol 32, No 4 (2018), Pagination: 252-256Abstract
A number of viruses are known to cause the disease in mulberry silkworm, Bombyx mori L. and cause significant cocoon crop loss to the farmers. The study has been undertaken to assess the prevalence of silkworm viral diseases caused by B. Mori Nucleopolyhedrovirus (BmNPV), B. mori Infectious Flacherie Virus (BmIFV) and B. mori Densovirus1 (BmDNV1) through external symptoms and molecular characterization from different climatic regions of India. During the intensive exploratory surveys in 2017, silkworm larvae with typical symptoms of BmNPV, BmIFV and BmDNV1 were collected across seven provinces from North India [Kashmir (temperate), Jammu, Ghumarwin in Himachal Pradesh, Dehradun in Uttarakhand (subtropical) and South India [Karnataka, Andhra Pradesh and Tamil Nadu (tropical)]. Dissection of diseased specimens confirmed the presence of virus through anatomical changes viz, size, shape and colour of organs after disease attack. The viruses were isolated and identified through PCR amplification of highly conserved genes. The results reveal that BmNPV, BmIFV and BmDNV1 are evenly prevalent across India. The infection percentage of BmNPV, BmIFV and BmDNV1 in North India (11.41 ± 1.21, 7.81 ± 0.67 and 7.40 ± 0.61) was significantly higher than South India (1.61 ± 0.17, 1.52 ± 0.14 and 1.62 ± 0.14), respectively. The highest prevalence of these viruses was observed from subtropical followed by temperate and tropical climate. The knowledge of the prevalence of these viruses in India and their synergism with bacteria and influence of other possible factors is important for preventing cocoon crop losses caused by viral diseases in India.Keywords
Bombyx mori, BmNPV, BmIFV, BmDNV1, Characterization, Prevalence.Full Text
References
- Gani M, Chouhan S, Babulal, Gupta RK, Khan G, Kumar NB, Saini P, Ghosh MK. 2017. Bombyx mori nucleopolyhedrovirus (BmNPV): its impact on silkworm rearing and management strategies. J Biol Control 31(3): 119–122. https://doi.org/10.18311/jbc/2017/16269
- Gupta RK, Gani M, Jasrotia P, Srivastava K. 2013. Development of the predator Eocanthecona furcellata on different proportions of nucleopolyhedrovirus infected Spodoptera litura larvae and potential for predator dissemination of virus in the field. BioControl 58(4): 543–552. https://doi.org/10.1007/s10526-013-9515-1
- Illahi I, Nataraju B. 2007. Prevalence of nuclear polyhedrosis in mulberry silkworm, Bombyx mori L. in Jammu and Kashmir. Indian J Seric. 46(1): 43–4
- Jehle JA, Lange M, Wang H, Hu Z, Wang Y, Hauschild, R. 2006. Molecular identification and phylogenetic analysis of baculoviruses from Lepidoptera. Virology 346: 180–193. doi: PMid: 16313938 https://doi.org/10.1016/j.virol.2005.10.032
- Khurad AM, Kanginakudru S, Qureshi SO, Rathod MK, Rai MM. 2006. A new Bombyx mori larval ovarian cell line highly susceptible to nucleopolyhedrovirus. J Invertebr Pathol. 92: 59–65. PMid: 16713602 https://doi.org/10.1016/j.jip.2006.03.005
- Lange M, Wang H, Zhihong H, Jehle JA. 2004. Towards a molecular identification and classification system of lepidopteran-specific baculoviruses. Virology 325(1): 36–47. PMid: 15231384 https://doi.org/10.1016/j.virol.2004.04.023
- Luo Y, Nartker S, Miller H, Hochhalter D, Wiederoder M, Wiederoder S, Setterington E, Drzal LT, Alocilja EC. 2010. Surface functionalization of electrospun nanofibers for detecting Escherichia coli O157:H7 and BVDV cells in a direct–charge transfer biosensor. Biosens Bioelectron. 26: 1612–1617. doi: 10.1016/j.bios.2010.08.028 PMid: 20833013
- Nataraju B, Sivaprasad V, Datta RK, Gupta SK, Shamim M. 1994. Colloidal textile dye-based dipstick immunoassay for the detection of nuclear polyhedrosis virus (BmNPV) of silkworm, Bombyx mori L. J Invertebr Pathol. 63(2): 135–139. https://doi.org/10.1006/jipa.1994.1026
- O’Reilly DR, Miller LK, Luckow VA. 1992. Baculovirus expression vectors: A laboratory manual. W. H. Freeman & Co., New York. https://doi.org/10.1016/00928674(93)90288-2
- Palhan VB, Gopinathan KP. 1996. Characterization of a local isolate of Bombyx mori nuclear polyhedrosis virus. Curr Sci. 70(2): 147–153.https://www.jstor.org/ stable/24096983
- Ravikumar G, Urs SR, Prakash NV, Rao CGP, Vardhana KV. 2011. Development of a multiplex polymerase chain reaction for the simultaneous detection of microsporidians, nucleopolyhedrovirus, and densovirus infecting silkworms. J Invertebr Pathol. 107(3): 193–197. PMid: 21570404 https://doi.org/10.1016/j.jip.2011.04.009
- Reddy BK, Rao JVK. 2009. Seasonal occurrence and control of silkworm diseases, grasserie, flacherie and muscardine and insect pest, Uzi fly in Andhra Pradesh, India. Int J Indus Entomol. 18(2): 57–61.
- Savanurmath CJ, Basavarajappa S, Hinchigeri SB, Ingalhalli SS, Singh KK, Sanakal RD. 1992. Relative incidence of silkworm viral disease in agroclimatic zones of northern Karnataka, India. National conference on mulberry sericulture research, CSR & TI, Mysore, Dec. p. 123.
- Sivaprasad V. Chandrasekharaiah C. Misra S. Kumar KPK. Rao YUM. 2003. Screening of silkworm breeds for tolerance to Bombyx mori nuclear polyhedrosis virus (BmNPV). Int J Indus Entomol. 7: 87–91.
- Tang FB, Zhanga Y, Shaoa Y, Zhua F, Huanga P, Baia X. 2017. Isolation and identification of a new Bombyx mori nucleopolyhedrovirus strain isolated from Yunnan, China. Science Asia 43: 26–32. https://doi.org/10.2306/ scienceasia1513-1874.2017.43.026
- Vootla SK, Lu XM, Kari N, Gadwala M, Lu Q. 2013. Rapid detection of infectious flacherie virus of the silkworm, Bombyx mori, using RT-PCR and nested PCR. J Insect Sci. 13(1): 120. PMid: 24785655 https://doi.org/10.1673/031.013.12001