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Sarma, B. K.
- Measurements of Indoor Radon, Thoron Progeny Levels in some Dwellings by Using SSNTD
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Authors
Affiliations
1 Department of Physics, B.B.K. college, Nagaon-781309, Barpeta., IN
2 Department of Physics, Rangia College, Rangia-781354., IN
3 Department of Physics, Nagaon College, Nagaon-782001., IN
4 Department of Physics, Gauhati University, Guwahati-781014., IN
1 Department of Physics, B.B.K. college, Nagaon-781309, Barpeta., IN
2 Department of Physics, Rangia College, Rangia-781354., IN
3 Department of Physics, Nagaon College, Nagaon-782001., IN
4 Department of Physics, Gauhati University, Guwahati-781014., IN
Source
International Journal of Physics and Applications, Vol 5, No 1 (2013), Pagination: 69-76Abstract
Radon and its progeny are the main contributors in the radiation dose received by general population. The indoor radon and thoron progeny levels in Pathsala area of Bajali subdivision of Assam, have been carried out using LR-115(type-II) Solid State Nuclear Track Detectors in Plastic twin chamber dosimeter cups (BARC type). The results of the measurement of radon and thoron progeny levels in different types of R C C (Reinforced Cement Concrete) dwellings for one complete year in four quarters are presented in this paper. The measured indoor radon progeny levels are found to vary from 0.33 to 0.43 mWL with a mean value 0.38 mWL and the thoron progeny levels were found to vary from 0.07 to 0.127 mWL with a mean value 0.09 mWL.Keywords
Radon Progeny, Thoron Progeny, Dwellings, LR-115
References
- Deka P.C.,Sarkar S, Bhattacharjee B, Goswami T.D., et.al . Radiation Measurements 36, (2003) 431.
- UNSCEAR (1993) United Nations Scientific Committee on the Effects of Atomic Radiations, United Nations, New York, US Department of Health Education and Welfare, Public Health Washington DC.
- Lundin, F.E., Wagoner, J. K., Archer, V. E., (1971). Radon daughter exposure and respiratory cancer, qualitative and temporal aspects, Joint Monograph No. 1, NIOSH and NIEHS, US Department of Health Education and Welfare,Public Health Services. Washington, DC.
- Sevc, J, Kunz, E, Placek V. Health Physics, 30, (1976), 433.
- Durrani, S.A., Bull R.K., Solid State Nuclear Track Detection, Principles, Method and Application, International Series in Natural Philosophy, Pergamon Press, Oxford.
- Jojo P.J., Study of Radon and its progeny using etched track detectors and micro analysis of uranium, Ph. D Thesis, Aligarh Muslim University, Aligarh, (1993).
- Maya Y.S., Eappan K.P., Nambi KSV, Proceedings of 12th National Symposium on Radiation Physics, Jodhpur, January 28-30, (1998).
- Dwivedi, K. K., Mishra, R. Tripathy S.P., Kulshreshtha, A., et al Radiation Measurement 33,(2001)7.
- Deka P.C, Sarkar S, Sarma B.K., Goswami T.D., et al. Indoor Built Environment , 12 (2003 ),343.
- Deka P.C., Sarkar S, Goswami T.D.and Sarma B.K., Chemical & Environmental Research, 15 (3 & 4) (2006) 292.
- Deka P.C., Sarma H., Sarkar S, Goswami T .D. et al. Indian J. Phys. 83 (7), (2009).1025
- ICRP, (1993),.Ann, ICRP. ICRP pub. P-65.
- Temperature-growth Relationship of Phaeoisariopsis personata
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Authors
Affiliations
1 Department of Plant Pathology, College of Agriculture, Assam Agricultural University, Jorhat, Assam, IN
2 Department of Mycology and Plant Pathology, Institute of Agricultural Sciences, Banaras Hindu University, Varanasi, U.P., IN
1 Department of Plant Pathology, College of Agriculture, Assam Agricultural University, Jorhat, Assam, IN
2 Department of Mycology and Plant Pathology, Institute of Agricultural Sciences, Banaras Hindu University, Varanasi, U.P., IN
Source
Asian Journal of Bio Science, Vol 8, No 1 (2013), Pagination: 32-35Abstract
Growth of Phaeoisariopsis personata was measured in different temperatures of 10, 15, 20, 25, 30 and 350C on peanut leaf oatmeal agar medium and maximum growth was observed in 250C. At very high and low temperature conditions like 10, 15 and 350C growth was very slow. At 200C growth was slow as compared to 250C and 300C where growth fast was observed. In the liquid medium, potato dextrose broth showed significant difference in growth and dry weight accumulation at different temperatures. Highest dry weight was accumulated at 250C (1025mg) followed by 300C (969mg) and 200C (635mg), whereas 150C accumulated less dry weight (312mg) followed by 350C (292mg) and 100C (273mg). The mycelial growth decreased with decreasing and increasing temperatures beyond the optimum temperature range of 25-300C. So by visual observation at 20 days after inoculation on peanut leaf oatmeal agar and dry weight of mycelial mat was measured in case of liquid media to see the effect of different temperatures on growth of the pathogen.Keywords
Groundnut, Cercospora, Phaeoisariopsis PersonataReferences
- Bunting, A.H., Gregory, W.C., Manboussin, J.C. and Rayon, J.G. (1974). A proposal for research on groundnuts (Arachis) by ICRISAT, ICRISAT mimer.1, 3 pp.
- Butler, D.R. (1990). Weather requirement for infection by late leaf spot in groundnut, Proceedings of Fourth Regional Groundnut Workshop for Southern Africa, ICRISAT, Patancheru (A.P.) INDIA. pp. 99-104.
- Carisse, O., Kushalappa, A.C. and Cloutier, D.C. (1993). Influence of temperature, leaf wetness, and relative humidity duration on sporulation of Cercospora carotae on carrot leaves. Phytopathology, 88: 338-343.
- Dhal, N.K., Biswal, G., Swain, N.C. and Panda, S. (2002). Bacterial pod rot in groundnut-A new disease. In : Proc. Internl. Conf. On Integrated Plant Disease Management for Sustainable Agriculture, Vol. II, Indian Pathological Society, NEW DELHI (INDIA). 903 pp.
- Freeman, A.F., Morris, N.J. and Willich, R.K. (1954). Peanut butter. U.S. Dept. Agric, AIC-370.
- Garren, K.H. and Jackson, C.R. (1973). Peanut diseases. La: Peanuts-culture and uses. American Peanut Research and Education Association, stone printing Co, Roanoke, VIGINIA (U.S.A.). pp. 429-491.
- Gerlagh, M. and Bokdam, M. (1974). Yield of groundnut in relation to the reduction of photosynthesis by Cercospora leaf spot or by its simulation. Abstract. Rev. Plant Pathol., 53: 2008.
- Jackson, C.R. and Bell, D.K. (1969). Diseases of peanut (groundnut) caused by fungi. University of Georgia, College of Agriculture Experiment Station, Research Bulletin 56, 137 pp.
- Kadam, R.M., Reddy, N.J.M., Jadhav, B.S. and Nagpurne, V.S. (2008). Aerobiological approach to leaf spot and rust disease of groundnut (Arachis hypogaea L.). Internat. J. Plant Prot., 1(2): 63-65.
- Kolte, S.J. (1984). Disease of annual edible oilseed crops Vol. I peanut diseases, CRC Press, Inc. Boka, Raton, FLORIDA (U.S.A.). 143 pp.
- Mayee, C.D. (1987a). Rust disease of groundnut in Maharastra. In : Groundnut rust diseases. Proc. Discussion Group Meeting, 24-28 Sept., 1989, ICRISAT Centre, India. 81-89 pp.
- Mayee, C.D. (1987b). Disease of groundnut and their management. In : Plant protection in field crops. Rao, M.V.B. and Sitanathan, S. (Eds.), PPSI, Hyderabad (A.P.) INDIA. pp.235-243.
- Mayee, C.D. and Dater, V.V. (1988). Diseases of groundnut in the tropics. Rev. Trop. Plant Pathol., 5: 169-198.
- McDonald, D., Subrahmanyam, P., Gibbons, R.W. and Smith, D.H. (1985). Early and late leaf spots of groundnut, Information Bulletin no. 21. International Crops Research Institute for the Semi-Arid Tropics, Patancheru (A.P.) INDIA.
- Paul, P.A. (2003). Epidemiology and predictive management of gray leaf spot of maize. Ph.D. Diss., lowa State University, Ames, IA (U.S.A.).
- Paul, P.A. and Munkvold, G.P. (2005). Influence of temperature and relative humidity on sporulation of Cercospora zeae-maydis and expansion of gray leaf spot lesions on maize leaves. Plant Dis., 89(6): 624-630.
- Rangaswami, G. and Mahadevan, A. (2006). Diseases of crop plants in India. 4th Ed. Prentice Hall of India Pvt. Ltd., NEW DELHI (INDIA). pp. 335-336.
- Ringer, C.E. and Grybauskas, A.P. (1995). Infection cycle components and disease progress of gray leaf spot on field corn. Plant Dis., 79: 24-28.
- Shew, B.B., Beute, M.K. and Wynne, J.C. (1988). Effect of temperature and relative humidity on expansion of resistance to Cercosporidium personatum in Peanut. Phytopathol., 78: 493-498.
- Harnessing Transgenerational Plant Immunity
Abstract Views :289 |
PDF Views:88
Authors
B. K. Sarma
1,
H. B. Singh
1
Affiliations
1 Department of Mycology and Plant Pathology, Institute of Agricultural Sciences, Banaras Hindu University, Varanasi 221 005, IN
1 Department of Mycology and Plant Pathology, Institute of Agricultural Sciences, Banaras Hindu University, Varanasi 221 005, IN
Source
Current Science, Vol 107, No 12 (2014), Pagination: 1941-1942Abstract
No Abstract.Full Text