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Co-Authors
- Satish Kumar
- Ravi Kumar
- Neeraj Kumar
- D. K. Sinha
- Sohail Fahmi
- A. K. Bhatt
- Govind Singh
- Sunil Kumar
- S. K. Dash
- U. P. Sharma
- K. Ramadoss
- K. K. Dwivedy
- G. R. Narayan Das
- D. K. Sharma
- R. Dhana Raju
- A. K. Singh
- Navin Goyal
- Siby K. Varughese
- P. K. Hansda
- S. Ramachandran
- P. B. Maithani
- Y. V. Rathaiah
- Rahul Singh
- Pawan Kumar
- Kuldeep Dhama
- Swati Kumari
- Jay Prakash Yadav
- Gayatri Kashyap
- Karam Pal Singh
- Vidya Singh
- Monalisa Sahoo
- Neelam Kumari
- Vimla Paul
- Sudhir Kumar
Journals
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z All
Singh, Rajendra
- Effect of Spacing on Biomass Production, Nutrient Content and Uptake by Poplar (Populus deltoides) Plantations
Abstract Views :327 |
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Authors
Source
Indian Forester, Vol 137, No 7 (2011), Pagination: 889-894Abstract
A study was conducted to estimate the biomass production and nutrient removal by eight years old poplar plantation raised at different spacing in a replicated randomized block design having three spacing of 5 × 4 m, 10 × 2.5 m and 15 × 2.5 m. Biomass of all the plant parts decreased with increasing tree spacing except that the differences between 10 × 2.5 m and 15 × 2.5 m spacing in respect of leaves and branches biomass were not significant. The total tree biomass including litter fall was higher in 5 × 4 m (415 t/ha) followed by 10 × 2.5 m (330 t/ha) and 15 × 2.5 m (192 t/ha) spacing. Concentration of both primary and secondary nutrients in different plant parts differed significantly at different spacing. Maximum nutrient concentration was recorded in leaves at 15 × 2.5 m spacing. However, poplar stem accounted for maximum uptake of all the nutrients. Among poplar spacing, closer tree spacing of 5 × 4 m recorded maximum uptake of both primary and secondary nutrients except that K and Mg uptake was maximum at 10 × 2.5 m spacing.Keywords
Biomass Production, Populus deltoides, Nutrient Removal, Family Saliaceae
- Evidences for Soda Metasomatism in Ladera-Sakhun Area, Northeastern Rajasthan
Abstract Views :213 |
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Authors
Affiliations
1 Department of Atomic Energy, C-31, Devnagar, Tonk Road, Jaipur-302018, IN
2 Department of Atomic Energy, AMD Complex, Begumpet, Hyderabad-560016, IN
1 Department of Atomic Energy, C-31, Devnagar, Tonk Road, Jaipur-302018, IN
2 Department of Atomic Energy, AMD Complex, Begumpet, Hyderabad-560016, IN
Source
Journal of Geological Society of India (Online archive from Vol 1 to Vol 78), Vol 56, No 5 (2000), Pagination: 573-582Abstract
Albitite and albitised banded gneissic country rock from the Ladera-Sakhun area, situated about 80km southwest of Jaipur, show several evidences for soda metasomatism. Megascopic evidences include reddening of outcrops due to aventurisation, gradational contacts between albitite and gneisses, development of metasomatic minerals, dequartzification, epidotization and cataclasitisation. Microscopic evidences include relict microcline in the newly formed albite grain, poor and discontinuous development of twin lamellae in albite giving step-like appearance, ubiquitous sweeping extinction in albite due to cataclasitisation, occasional mortar texture in albitite, tapering of twin lamellae within the grain, twin lamellae forming in chequered fashion, development of aventurine albite containing dusty Fe-oxide inclusions, development of albite along twin/cfeavage plane of microcline, formation of new albite in plagioclase, destruction of sericite in plagioclase of albitised granite, formation of myrmekite of intergranular, intragranular and rim types, development of epidote corona around clinopyroxene in pyroxenite, partial to complete dequartzification and filling up of voids by calcite. Petrochemical evidences of increased characteristic values of Na2O from 3.17 to 7.00 wt%, K2O and Si2O from -0.03 to -6.00 wt% and -0.76 to -10.55 wt% in the unalbitised to albitised rocks respectively, provide further support for soda metasomatism. Albitisation at Ladera-Sakhun area extends over a considerable distance into Haryana in the NE and beyond Tal in the SW, attesting to its regional significance and its potential for mineralisation.Keywords
Petrology, Metasomatism, Albitite, Ladera-Sakhun, Rajasthan.- Evaluation of Hydrouranium Anomalies in the Crystallines Along the Southwestern Margin of Cuddapah Basin, Andhra Pradesh, India
Abstract Views :164 |
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Authors
Affiliations
1 Atomic Minerals Division, Department of Atomic Energy, Bangalore-560072, IN
2 Atomic Minerals Division, Department of Atomic Energy, Hyderabad-500016, IN
1 Atomic Minerals Division, Department of Atomic Energy, Bangalore-560072, IN
2 Atomic Minerals Division, Department of Atomic Energy, Hyderabad-500016, IN
Source
Journal of Geological Society of India (Online archive from Vol 1 to Vol 78), Vol 53, No 3 (1999), Pagination: 335-346Abstract
Univariate and multivariate statistical analyses, especially correlation study and factor analysis of uranium and other major ions in the groundwater of Chenchalapalle-Mulapalle area, known for its fracture controlled uranium mineralization, in the southwestern crystalline margin of Middle-Upper Proterozoic Cuddapah basin have revealed - (i) several well defined and distinct anomaly zones of > 200, > 500, > 1000 ppb of uranium, (ii) enriching factors like TDS(Ec), HCO3-, Na+, K+, Ca+2 , Mg+2, Cl-, SO4-2 have poor to negligible influence on high uranium content and (iii) factor-3, identified as "mineralization factor" has high loading for uranium (0.948). The study on saturation indices of several uranium and other minerals indicated undersaturation for most of the aqueous uranium species, except for a few hydroxides. Particularly, schoepite (2UO3.5H2O) has low to moderate degree of supersaturation in samples from major anomalous zones.
Based on the distinctive hydrogeochemical attributes and geological and structural favourability factors, the tracts in the vicinity of Varikuntapalle (VKP). Dapepalle (DPL) and Pulikunta (PLK) villages, between Chenchalapalle-Mulapalle area in the southwestern crystalline margin of Cuddapah basin, are designated as potential target areas for detailed exploration.
Keywords
Hydrogeochemistry, Uranium, Groundwater, Cuddapah Basin, Andhra Pradesh.- Uranium Mineralisation in Sikar District, Rajasthan
Abstract Views :257 |
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Authors
Affiliations
1 Atomic Minerals Division, Department of Atomic Energy, New Delhi-110022, IN
1 Atomic Minerals Division, Department of Atomic Energy, New Delhi-110022, IN
Source
Journal of Geological Society of India (Online archive from Vol 1 to Vol 78), Vol 21, No 9 (1980), Pagination: 432-439Abstract
Uranium mineralisation of segregated type consisting mostly of uraninite and less commonly of brannerite has been noted in the pink quartzo-feldspathic or aplitic emplacements along shear zones in Rohil-Ghateshwar-Khandela-Diara and Saladipura area in Sikar district of Rajasthan. Ilmenite, molybdenite, pyrrhotite, chalcopyrite and pyrite are noted along with uraninite.
Mineralisation is controlled by structure and generally occurs along linear shears that are parallel to the main tectonic lineament. In Ghateshwar area, the mineralised quartzo-feldspathic emplacements have undergone refolding along with the rest of the formations. Uranium mineralisation is near to the main tectonic lineament that passes through the axis of the Ajabgarh synclinorium. Integrated radiometric and hydrogeochemical surveys have indicated continuity of the uranium bearing quartzo-feldspatbic emplacements along a 16 km belt.
The Salwari fluorite occurrence 10 km NE of Khandela is a post feldspathic emplacement and probably formed during the final phases of mineralisation.
- Radioactive Fossil Placer (Cyrtolite-Hematite Ironstone) from the Boleng Area, East Siang District, Arunachal Pradesh, India
Abstract Views :197 |
PDF Views:1
Authors
Affiliations
1 Atomic Minerals Division, Department of Atomic Energy, Hyderabad-500 016, IN
2 Atomic Minerals Division, Department of Atomic Energy, Bangalore-560 072, IN
3 Atomic Minerals Division, Department of Atomic Energy, Calcutta-700 026, IN
1 Atomic Minerals Division, Department of Atomic Energy, Hyderabad-500 016, IN
2 Atomic Minerals Division, Department of Atomic Energy, Bangalore-560 072, IN
3 Atomic Minerals Division, Department of Atomic Energy, Calcutta-700 026, IN
Source
Journal of Geological Society of India (Online archive from Vol 1 to Vol 78), Vol 43, No 4 (1994), Pagination: 407-413Abstract
A zirconium-rare earth (RE)-thorium-uranium fossil placer with about 60-84% heavy and resistant minerals is recorded in association with quartzite and metagreywacke of the Proterozoic Miri Group from the Boleng area in East Siang District of Arunachal Pradesh. The heavy minerals occur as thin layers with variable thickness of a fraction of a cm to a maximum of 12 cm. The mineralised rocks are hard, highly compact, very heavy (sp. gr. 3.96-4.66), massive (at places, banded) and exhbit clastic texture with rounded to subrounded and well sorted fine grains of heavy minerals pointing to a long distance of transportation. Mineralogically, it consists of 46-61% opaques (mostly Ti-hematite), 9-13% rutile, 3-9% cyrtolite, 0.7-4.5% monazite and 0.2-0.9% thorite, all set in 10-30% sericitic matrix. Chemically, it is markedly different from the widespread unconsolidated coastal and inland placers, and analyses about 43-62% iron oxides, 1.7-5.4% Zr02, 0.5-3.1 % (RE,Y)2O3, 0.1-0.5% ThO2, and 0.01-0.9% U3O8. Chondrite-normalizcd REE-pattems show light REE enrichment and heavy REE depletion, with (Ce/Yb)cn ratio of 9-10 and markedly negative Eu-anomaly (Eu/Eu: 0.18-0.22). Generally, consolidated placers (fossil placers) are monazite-rich, whereas unconsolidated placers are, zircon-rich and viewed in this light, the cyrtolite (zircon)-rich fossil placer from the Boleng area is a rare occurrence.Keywords
Fossil Placer, Radioactivity, Boleng, Arunachal Pradesh.- Geochemistry of Granites of Jamhughoda, Panchmahals District, Gujarat and Uranium Mineralization in Champaner Group
Abstract Views :207 |
PDF Views:2
Authors
Affiliations
1 Atomic Minerals Division, Baroda - 390 001, IN
2 Atomic Minerals Division, Hyderabad - 500 016, IN
1 Atomic Minerals Division, Baroda - 390 001, IN
2 Atomic Minerals Division, Hyderabad - 500 016, IN
Source
Journal of Geological Society of India (Online archive from Vol 1 to Vol 78), Vol 50, No 6 (1997), Pagination: 769-778Abstract
The Precambrian Champaner Group of rocks are intruded by Godhra granites in Jambughoda area. Significant uranium mineralisation has been located in the fractures in the dolomitic limestone of Lower Champaners with uraninite occurring as the primary uranium mineral. The geochemical features observed for the granites suggest that the granite melt, originated by the partial melting of relatively silicic crust, was further modified by fractionation processes during which uranium was concentrated in the late magmatic and subsequent hydrothermal fluids. The Champaner deformation resulted in the formation of WNW-ESE regional fracture system and crush zones, thus making the rocks highly penneable for the passage of uranium-rich hydrothermal fluids and offering open spaces for precipitation of uranium under suitable physicochemical conditions.Keywords
Geochemistry, Champaners, Granites, Uranium, Gujarat.- Granites of Zoz Area, Baroda District, Gujarat and its Economic Significance
Abstract Views :182 |
PDF Views:2
Authors
Affiliations
1 Atomic Minerals Division, Department of Atomic Energy, Baroda-390 001, IN
2 Hyderabad-500016, IN
1 Atomic Minerals Division, Department of Atomic Energy, Baroda-390 001, IN
2 Hyderabad-500016, IN
Source
Journal of Geological Society of India (Online archive from Vol 1 to Vol 78), Vol 51, No 2 (1998), Pagination: 201-206Abstract
The granites around Zoz represent a differentiated, calc-alkaline, subaluminous, A-type granite with higher uranium content. The A-type affinity points to the possibility of encountering Sn, Mo, Bi, Nb, Ta and F mineralisation in the area. The low Th/U ratio also favours vein type U-deposits within granites or in adjacent metasediments.Keywords
Geochemistry, Godhra Granite, Zoz, Champaner, Gujarat.- Pathology and Polymerase Chain Reaction Detection of Ovine Progressive Pneumonia (Maedi) Cases in Slaughtered Sheep in India
Abstract Views :153 |
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Materials and Methods: A total of 888 lungs of adult sheep, aged between 2 and 5 years, were screened during slaughter, of which 121 were found to have pneumonic lesions. The tissues from each pneumonic lung including associated lymph nodes were collected in 10% neutral buffered formalin for histopathology. The frozen tissues of the same were also collected and stored at -20°C for PCR confirmation.
Results: Three of 121 cases of pneumonic lungs of sheep revealed gross and histopathological lesions suggestive of maedi or ovine progressive pneumonia infection. These 3 cases were further confirmed by PCR technique that amplified 291-base pair DNA in the long terminal repeat sequence of MV provirus.
Conclusion: This study suggests the low occurrence of MV virus (MVV) infection in India in naturally affected sheep based on pathomorphological lesions and using the molecular tool of PCR detection of the virus in tissues. Further, a combination of pathomorphology or/and PCR testing might be optimal for detecting the animals infected with MVV.
Authors
Rahul Singh
1,
Pawan Kumar
1,
Rajendra Singh
1,
Kuldeep Dhama
1,
Swati Kumari
1,
Jay Prakash Yadav
2,
Gayatri Kashyap
1,
Karam Pal Singh
3,
Vidya Singh
1,
Monalisa Sahoo
1
Affiliations
1 Division of Pathology, ICAR-Indian Veterinary Research Institute, Bareilly, Izatnagar-243122, Uttar Pradesh, IN
2 Division of Veterinary Public Health, ICAR-Indian Veterinary Research Institute, Bareilly, Izatnagar-243122, Uttar Pradesh, IN
3 Division of Pathology, Centre for Animal Disease Research and Diagnosis, ICAR-Indian Veterinary Research Institute, Bareilly, Izatnagar-243122, Uttar Pradesh, IN
1 Division of Pathology, ICAR-Indian Veterinary Research Institute, Bareilly, Izatnagar-243122, Uttar Pradesh, IN
2 Division of Veterinary Public Health, ICAR-Indian Veterinary Research Institute, Bareilly, Izatnagar-243122, Uttar Pradesh, IN
3 Division of Pathology, Centre for Animal Disease Research and Diagnosis, ICAR-Indian Veterinary Research Institute, Bareilly, Izatnagar-243122, Uttar Pradesh, IN
Source
Veterinary World, Vol 10, No 11 (2017), Pagination: 1401-1406Abstract
Aim: The small ruminant lentiviruses are known to cause maedi-visna (MV) and caprine arthritis-encephalitis in sheep and goats, typically affecting joints, udder, lungs, and the central nervous system. The diagnosis usually involves serology, clinical signs, immunohistochemistry, and polymerase chain reaction (PCR). In the present study, the histopathologically positive pneumonia cases of MV were confirmed by PCR in lung tissue probably for the first time in India.Materials and Methods: A total of 888 lungs of adult sheep, aged between 2 and 5 years, were screened during slaughter, of which 121 were found to have pneumonic lesions. The tissues from each pneumonic lung including associated lymph nodes were collected in 10% neutral buffered formalin for histopathology. The frozen tissues of the same were also collected and stored at -20°C for PCR confirmation.
Results: Three of 121 cases of pneumonic lungs of sheep revealed gross and histopathological lesions suggestive of maedi or ovine progressive pneumonia infection. These 3 cases were further confirmed by PCR technique that amplified 291-base pair DNA in the long terminal repeat sequence of MV provirus.
Conclusion: This study suggests the low occurrence of MV virus (MVV) infection in India in naturally affected sheep based on pathomorphological lesions and using the molecular tool of PCR detection of the virus in tissues. Further, a combination of pathomorphology or/and PCR testing might be optimal for detecting the animals infected with MVV.
Keywords
Histopathology, Maedi-Visna, Ovine Progressive Pneumonia, Polymerase Chain Reaction, Small Ruminant Lentiviruses.Full Text
- Bio-Efficacy of Novel Insecticides and Pymetrozine 50% WG against Insect Pests of Paddy
Abstract Views :389 |
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Authors
Affiliations
1 Department of Entomology, College of Agriculture, Sardar Vallabhbhai Patel University of Agriculture and Technology, Meerut (U.P.), IN
2 Department of Zoology, School of Entomology, St. John’s College, Agra (U.P.), IN
1 Department of Entomology, College of Agriculture, Sardar Vallabhbhai Patel University of Agriculture and Technology, Meerut (U.P.), IN
2 Department of Zoology, School of Entomology, St. John’s College, Agra (U.P.), IN
Source
International Journal of Plant Protection, Vol 11, No 1 (2018), Pagination: 23-29Abstract
A field experiment was conducted in Randomized Block Design with three replications of eight treatments during Kharif season 2014 at Chirori university research centre, SardarVallabhbhai Patel University of Agriculture and Technology, Meerut (U.P.) to evaluate the effect of some novel insecticides against insect pests of paddy. Efficacy of seven insecticides viz.,Pymetrozine 50% WG (GSP sample) @ 250, 300 and 400 g/ha, Pymetrozine 50% WG (market sample) @ 300 g/ha, Imidacloprid 17.8% SL @ 125 ml/ha and Fipronil 5% SC@ 1500 ml/hatasted against green leaf hopper (Nephotettixvirescens), Brown plant hopper (Nilaparvatalugens) and White backed plant hopper (Sogatellafurcifera). The results of the experiment showed that Pymetrozine 50% WG (GSP sample) @ 300 and 400 g/ha and Pymetrozine 50% WG (Market sample) @ 300 g/ha effectively controlled BPH, GLH and WBPH pests followed by Imidacloprid 17.8% SL @ 125 ml/ha and Fipronil 5% SC @ 1500 ml/ha. No phytotoxicity symptoms on paddy crop and no adverse effect on natural enemies were recorded due to application of treatments. Since Pymetrozine 50% WG @ 300 g/ha was equally effective to 400 g/ha dose.Keywords
Novel Insecticides, Pymetrozine 50% WG, Insect Pests, Paddy.References
- Bhavani, B. and Rao, P. R. M. (2005). Bioefficacy of certain insecticides against rice planthoppers vis-à-vis natural enemies under irrigated field conditions. Indian J. Plant Prot., 33 (1) : 64-67.
- Dash, A. N., Sontakke, B. K., Mukherjee, S. K., Mishra, P. R. and Rath, L. K. (1996). Efficacy of certain insecticides against major pests of rice. Oryza, 33 (4):290-293.
- Dhaka, S.S., Prajapati C.R., Singh D. V. and Singh, R. (2011). Field evaluation of insecticides and biopesticides against rice leaf folder, Cnaphalocrosismedinalis. Ann. Pl. Protec. Sci., 19 (2) : 324-326.
- Firake, D. M. and Karnatak, A. K. (2010). Comparative bio efficacy of insecticides against major sucking pests of rice. J. Insect Sci., 23(1) : 38-43.
- IRRI (2006). Rice in number. Rice Today, 5 (4): 48-49.
- Jena and Mayabini (2004). Efficacy of new insecticides as seedling ischolar_main dip treatment against yellow stem borer in Rabi rice. Indian J. Plant Prot., 32 (2) : 37-39.
- Kadam, J.R., Bhosle, U.D., Chavan, A.P. and Mhase, B.M. (2005). Bioefficacy of insecticides sequences against pests of brinjal and their impact on natural enemies. Ann. Pl. Protec. Sci.,13 (2): 278-282.
- Mathur, K. C., Reddy, P. R.,Rajamani, S. and Moorthy, B.T.S. (1999). Integrated pest management in rice to improve productivity and sustainability. Oryza, 36 (3): 195-207.
- Pandey, K., Balasubramanian, G., Sundarababu, P. C. and Gopalan, M. (1992). Field evaluation of insecticides alone and in combination against leaf folders and their effect on natural enemies in rice. PestMgmt. & Econ. Zool., 2: 105-109.
- Panda, S. K., Nayak, S. K. and Behera, V. K. (2004). Bio-efficacy of fipronil 0.4G against insect pests of rice. Oryza, 41(1 & 2): 32-34.
- Panse, V. G. and Sukhatne, P. V. (1985). Statistical methods for agricultural workers. ICAR, New Delhi, India, pp.381.
- Pasalu, I. C., Krishnaiah, N.V., Katti, G. and Varma, N. R. G. (2002). IPM in rice. IPM News letter, pp. 45-55.
- Pathak, N. R., Zaherudden, S. M., Bhavani, B. and Rao, P. R. M. (2003). Efficacy of certain new insecticides against rice plant hoppers under field condition. Indian J. Plant Prot., 31 (2) : 31-33.
- Prasad, S.S. Gupta, P.K. and Kanaujia, B.L. (2005). Efficacy and economics of promising granular insecticides against yellow stem borer on semi-deep water rice. Ann. Pl. Protec. Sci.,13 (2): 365-368.
- Rath, P. C. (2011).Testing of some new insecticides against insect pest of rice. J. Plant Prot. Environ., 8 (1) : 31-33.
- Roy, B., Surje, D. T. and Mahato, S. (2013). Biodiversity of farmers’ varieties of rice (Oryza sativa L.) at repository of Uttarbanga Krishi Viswavidyalaya: A reservoir of important characters. The Ecoscan., 4 (Special Issue): 145-151.
- Satyanarayana, P., Raghuraman, M. and Santeshwari (2014). Bioefficacy of phenyl pyrazole against brown planthopper, Nilaparvatalugens in rice. Trends in Biosciences, 7(14):1660-1663.
- Saxena, R. C. and Shrivastava, R. C. (2007).Entomology at a glance, Agrotech Publishing Academy,Udaipur, India. pp.464.
- Singh, J. and Dhaliwal, G.S. (1994). Insect pest management in rice: A perspective. In: G.S. Dhaliwal and Ramesh Arora (Ed.). Trends in Agricultural insect pest management. Commonwealth Publishers. New Delhi, India. pp. 56-112.
- Uthamasamy, S. and Kuruppuchamy. P. (1988). A note on the efficacy of new insecticides against rice pests. Indian J. Plant Prot., 16 : 265-267.