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- Gopal Iyengar
- Raghavendra Ashrit
- Amit Ashish
- Munmun Das Gupta
- E. N. Rajagopal
- Swati Basu
- Rupanjali Banerjee
- Manjit Singh
- Suneel Kumar
- M. A. Khan
- Vineet Gupta
- Manish Garg
- T. D. Nidheesh
- A. N. Shylesha
- A. H. Jayappa
- K. S. Jagadish
- Manju Kumari
- OM Prakash Sharma
- Prince Mahore
- A. K. Bhowmick
- Mitesh Makwana
- A. K. Panday
- S. C. Dubey
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
Sharma, Kuldeep
- Improved Prediction of Cyclone Phailin (9-12 October 2013) with 4DVAR Assimilation
Abstract Views :296 |
PDF Views:79
Authors
Gopal Iyengar
1,
Raghavendra Ashrit
1,
Amit Ashish
1,
Kuldeep Sharma
1,
Munmun Das Gupta
2,
E. N. Rajagopal
1,
Swati Basu
1
Affiliations
1 National Centre for Medium Range Weather Forecasting, A-50, Sec-62, Noida 201 307, IN
2 National Centre for Medium Range Weather Forecasting, A-50, Sec-62, Noida 201 307, HT
1 National Centre for Medium Range Weather Forecasting, A-50, Sec-62, Noida 201 307, IN
2 National Centre for Medium Range Weather Forecasting, A-50, Sec-62, Noida 201 307, HT
Source
Current Science, Vol 107, No 6 (2014), Pagination: 952-954Abstract
No Abstract.Full Text
- Impact of Higher-Order Dispersion and Phase Modulation on the Performance of alCNRZ Modulation for OWDM/DWDM
Abstract Views :173 |
PDF Views:2
Authors
Affiliations
1 Electronics and Communication Engineering from Ramgarhia Institute of Engineering and Technology, Phagwara affiliated to Punjab Technical University (PTU), Punjab, IN
2 Guru Nanak Dev university (GNDU), Regional Campus-Ladhewali, Jalandhar, Punjab, IN
3 Ramgarhia Institute of Engineering and Technology, IN
1 Electronics and Communication Engineering from Ramgarhia Institute of Engineering and Technology, Phagwara affiliated to Punjab Technical University (PTU), Punjab, IN
2 Guru Nanak Dev university (GNDU), Regional Campus-Ladhewali, Jalandhar, Punjab, IN
3 Ramgarhia Institute of Engineering and Technology, IN
Source
Digital Signal Processing, Vol 5, No 2 (2013), Pagination: 57-62Abstract
There are several factors and technological issues suchas fiber nonlinearity and dispersion which are responsible fordegrading the performance of a system. There must be some way outto transmit an error-free signal over a certain distance. Thus themodulation format plays a very significant role in the overall systemperformance in communication technology. The choice of optimummodulation format has always been a challenging task because thereis no fixed criterion available for it. This has inspired us to study andanalyze all these aspects of modulation formats in OWDM/DWDM.In this paper, we have analytically evaluated the effect of higherorder dispersion and phase modulation on Alternate Chirp NRZ(alCNRZ)) modulation format. We have mathematically evaluatedthe output electric field in the presence of higher order dispersion andphase modulation index. Their results are also presented analyticallywith first, second, third and fourth order dispersion compensation aswell as for different values of phase modulation indexes in order topresent a signal which can be transmitted throughout its path withoutany degradation in its quality and quantity.
Keywords
ALCNRZ Modulation Format, GVD, SPM, WDM.
- Natural Parasitization of Sugarcane Leaf Hopper, Pyrilla perpusilla (Walk.) in Uttarakhand
Abstract Views :176 |
PDF Views:0
Authors
Affiliations
1 Biological Control Laboratory, Department of Entomology, G.B. Pant University of Agriculture and Technology, Pantnagar, U.S. Nagar (Uttarakhand), IN
1 Biological Control Laboratory, Department of Entomology, G.B. Pant University of Agriculture and Technology, Pantnagar, U.S. Nagar (Uttarakhand), IN
Source
Asian Journal of Bio Science, Vol 3, No 2 (2008), Pagination: 286-288Abstract
The experiment on natural parasitization of sugarcane leaf hopper, Pyrilla perpusilla was conducted at Crop Research Center of G.B. Pant University of Agriculture and Technology, Pantnagar. The maximum number of egg mass, nymph and adult per leaf of pyrilla observed was 6.67, 22.67and 18.00 on 30th, 30th and 15th August, respectively. The highest parasitization of eggs masses by Tetrastichus pyrillae was observed in the month of October i.e. 85.33% indicating peak activity of parasitoid. The maximum population of egg, pupa and adult/ leaf of E. melanoleuca were 8.00, 27.33 and 18.67 on 30th Sept., 30th Oct. and 15th of Oct., respectively.Keywords
Sugarcane, Pyrilla perpusilla, Epiricania melanoleuca.- Optimal Tensile Strength by Submerged Arc Welding
Abstract Views :448 |
PDF Views:0
Authors
Affiliations
1 Department of Mechanical Engineering, DKNMU, Newai, Rajasthan, IN
2 PED Design Department, ISGEC Heavy Engineering Ltd., Yamunanagar, Haryana, IN
3 Production Department, Victoria Auto Pvt. Ltd., Haridwar, Uttarakhand, IN
1 Department of Mechanical Engineering, DKNMU, Newai, Rajasthan, IN
2 PED Design Department, ISGEC Heavy Engineering Ltd., Yamunanagar, Haryana, IN
3 Production Department, Victoria Auto Pvt. Ltd., Haridwar, Uttarakhand, IN
Source
International Journal of Interdisciplinary Research, Vol 3, No 2 (2017), Pagination: 25-32Abstract
To contend the market in the existent state, cost efficacy is vastly desired. For that, productivity improvement technique is among the many ways [1]. Submerged Arc Welding (SAW) is used as a productivity improvement method in the present paper where manufacturing process of fabricated parts are not only curtail by tumbling the process time, moreover by strengthening the weld quality too. Efforts are initiated to improve the productivity of the fabrication department of one of the industrial set up under study is taken by achieving the tensile strength of the weld bead in single pass only. In this process, conventional flux is supplemented by alloying in variations to achieve the optimal tensile strength, which are further verified by one of the optimisation method. The effect of input parameters are analysed over the output response and observed that one parameter has more substantial effect on the tensile strength than the other remaining parameters.Keywords
Industrial Unit, Optimization, Submerged Arc Welding (SAW), Tensile Strength.References
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- A. M. Mercado, V. M. Hirata, and M. L. Munoz, “Influence of the chemical composition of flux on the microstructure and tensile properties of submerged-arc welds,” Journal of Materials Processing Technology, vo1. 169, no. 3, pp. 346-351, 2005.
- P. Kanjilal, T. K. Pal, and S. K. Majumdar, “Combined effect of flux and welding parameters on chemical composition and mechanical properties of submerged arc weld metal,” Journal of Materials Processing Technology, vo1. 171, pp. 223-231, 2006.
- S. Shen, I. N. A. Oguocha, and S. Yannacopoulos, “Effect of heat input on weld bead geometry of submerged arc welded ASTM A709 Grade 50 steel joints,” Journal of Materials Processing Technology, vol. 212, no. 1, pp. 286-294, 2012.
- S. Datta, A. Bandyopadhyay, and P. K. Pal, “Slag recycling in submerged arc welding and its influence on weld quality leading to parametric optimization,” Journal of Advanced Manufacturing Technology, vo1. 39, no. 3-4, pp. 229-238, 2008.
- S. Kumanan, J. E. R. Dhas, and K. Gowthaman, “Determination of submerged arc welding process parameters using Taguchi method and Regression analysis,” Indian Journal of Engineering and Material Science, vo1. 14, no. 3, pp. 177-183, 2007.
- B. Beidokhti, A. H. Koukabi, and A. Dolati, “Effect of titanium addition on the microstructure and inclusion formation in submerged arc welded HSLA pipeline steel,” Journal of Materials Processing Technology, vol. 209, no. 8, pp. 4027-4035, 2009.
- F. Shahid, A. A. Khan, and S. Hameed, “Mechanical and micro structural analysis of dissimilar metal welds,” IJRRAS, vol. 25, no. 1, pp. 6-12, 2015.
- A. M. Moshi, S. R. Bharthi, R. Rajeshkumar, and R. Kumar, “Factors influencing submerged arc welding on stainless steel: A review,” ARPN Journal of Engineering and Applied Sciences, vol. 11, no. 2, pp. 1237-1241, 2016.
- J. L. Rosa, A. Robin, M. B. Silva, C. A. Baldan, and M. P. Peres, “Electro deposition of copper on titanium wires: Taguchi experimental design approach,” Journal of Materials Processing Technology, vol. 209, no. 3, pp. 1181-1188, 2009.
- Safety evaluation of insecticides to the lady beetle, Cryptolaemus montrouzieri Mulsant (Coleoptera: Coccinellidae), a major predator of mealybugs
Abstract Views :222 |
PDF Views:118
Authors
Affiliations
1 Department of Agricultural Entomology, College of Agriculture, University of Agricultural Sciences, GKVK, Bengaluru - 560065, Karnataka, IN
2 ICAR-National Bureau of Agricultural Insect Resources, Hebbal, Bengaluru - 560024, Karnataka, IN
3 Department of Apiculture, College of Agriculture, University of Agricultural Sciences, GKVK, Bengaluru - 560065, Karnataka, IN
4 Department of Entomology, Maharana Pratap University of Agriculture and Technology, Udaipur - 313001, Rajasthan, IN
1 Department of Agricultural Entomology, College of Agriculture, University of Agricultural Sciences, GKVK, Bengaluru - 560065, Karnataka, IN
2 ICAR-National Bureau of Agricultural Insect Resources, Hebbal, Bengaluru - 560024, Karnataka, IN
3 Department of Apiculture, College of Agriculture, University of Agricultural Sciences, GKVK, Bengaluru - 560065, Karnataka, IN
4 Department of Entomology, Maharana Pratap University of Agriculture and Technology, Udaipur - 313001, Rajasthan, IN
Source
Journal of Biological Control, Vol 34, No 2 (2020), Pagination: 153-157Abstract
The present experiment was aimed at safety evaluation of different insecticides to Cryptolaemus montrouzieri Mulsant, a major predator of mealybugs. In order to understand the impact of chemical insecticides on this predator, different bioassays were carried out. The results of the study showed that the Percent mortality of C. montrouzieri at 24 HAT was highest in profenophos 50% EC (49.33%) followed by thiamethoxam (36.00%) and dinotefuran (30.67%). However, azadirachtin, buprofezin and pymetrozine were found comparatively safer insecticide to C. montrouzieri. Therefore, both of these insecticides, need to be evaluated further under different agro-climatic zones to confirm their suitability, for mealybug management in cotton ecosystem without adversely affecting the performance of C. montrouzieri.Keywords
Azadirachtin, Bioassay, Buprofezin, Dinotefuran, Phenacoccuss Solenopsis, Profenophos, Pymetrozine, Thiamethoxa.Full Text
References
- Anjitha A. 2010. Baseline toxicity and selectivity of insecticides against papaya mealybug, Paracoccus marginatus (Williams and Granara De Willink). M.Sc. (Agri.) Thesis, Tamil Nadu Agriculture University, Coimbatore.
- Ghelani MK, Kabaria BB, Chhodavadia SK. 2014. Field efficacy of various insecticides against major sucking pests of Bt cotton. J Biopest. 7(5):27-37.
- Gosalwad SS, Bhosle BB, Wadnerkar DW, Ilyas MD, Khan FS. 2009. Biology and feeding potential of Cryptolaemus montrouzieri Mulsant (Coleoptera: Coccinellidae) on Maconellicoccus hirsutus and Phenacoccus solenopsis. J. Plant Prot Environ. 6(2):73-77.
- Halappa B, Awaknavar JS, Archana D, Bandi S, Arun Kumar GS. 2013. Laboratory evaluation of insecticides against australian beetle, Cryptolaemus montrouzieri Mulsant (Coccinellidae: Coleoptera). Curr Biotica 7(3):196-201.
- Jayaraman V, Chandramohan N, Gopalan M, Balasubramanian G. 1988. Predatory potential of coccinellid beetles on mealybugs of citrus and grapevine. Madras Agric J. 75:77-80.
- Mani M, Krishnamoorthy A. 1997. Australian ladybird beetle Cryptolaemus montrouzieri. Madras Agric J. 84:237-49.
- Sattar M, Hamed M, Nadeem S. 2007. Predatory potential of Chrysoperla carnea (Stephens) (Neuroptera: Chrysopidae) against cotton mealybug. Pakistan Entomol. 29(2):103-106.
- Sinha P. 2004. Relative toxicity different pesticides to mealy bug, Maconellicocus hirsultus Green and predatory beetle, Crytolaemus montrouzieri Mulsant under laboratory conditions. M.Sc. (Agri.) Thesis, Mahatma Phule Krishi Vidyapeeth, Rahuri.
- Wayne OJ, Kevin DJ, Mathew EO. 2009. Impact of reducedrisk insecticides on soybean aphid and associated natural enemies. J Ecol Entomol. 102(5):181-182. https://doi.org/10.1603/029.102.0512. PMid: 19886446.
- Biointensive management of wilt disease of lentil through biocontrol agents and organic amendments
Abstract Views :264 |
PDF Views:165
Authors
Affiliations
1 Plant Pathology Department, College of Agriculture, Nagaur (AU), Jodhpur – 341001, Rajasthan, IN
2 Plant Pathology Department, Rajasthan Agricultural Research Institute, Durgapura, Jaipur – 302018, Rajasthan, IN
1 Plant Pathology Department, College of Agriculture, Nagaur (AU), Jodhpur – 341001, Rajasthan, IN
2 Plant Pathology Department, Rajasthan Agricultural Research Institute, Durgapura, Jaipur – 302018, Rajasthan, IN
Source
Journal of Biological Control, Vol 34, No 3 (2020), Pagination: 193-199Abstract
Lentil (Lens culinaris M.) is an important dietary source of protein and other essential nutrients in South and West Asia, North and East Africa. Lentil crops are susceptible to a number of diseases caused by fungi and other parasites. Among them, the most significant and serious soil-borne disease is Fusarium wilt (Fusarium oxysporum f.sp. lentis: Fol). Systematic studies in laboratory, cage house and field trials were conducted (2016-17 to 2017-18). Laboratory experiments were carried out in completely randomized design with four replications and field trials were carried out consecutively during 2016-17 and 2017-2018 crop season in Randomized Block Design (RBD) with four replications using L9-12, a susceptible cultivar. Under in vitro, bio efficacy of selected bio agents, maximum 81.33 per cent mycelial growth inhibition of pathogen was recorded in Trichoderma harzianum (local isolate) and minimum mycelial growth inhibition 55.00 per cent was recorded in Bacillus subtilis. Under in vivo condition, effect of selected bio agents and organic amendments on disease incidence, percent disease control, pathogen spore in per gram soil and yield ha-1 of lentil was recorded. Application of Trichoderma harzianum (Local isolate) @ 6g/Kg seed was found most effective with maximum seed germination 91.95 and 90.62 per cent, lowest disease incidence of 24.22 and 25.39 per cent and higher pooled mean grain yield 774.31 kg/ha over check during 2016-17 and 2017-18, respectively. Among organic amendments, maximum disease control (42.02 per cent), minimum average disease incidence (36.33 per cent) and minimum pathogen spores (1.3x104 per gram soil) were observed in neem cake amendment followed by poultry manure and vermicompost amendments. This indicates that these treatments can be effectively used for controlling Fusarium wilt disease under organic mode of lentil cultivation in Rajasthan.
Keywords
Biocontrol agents, Fusarium oxysporum f.sp. lentis, lentil wilt, organic amendmentsFull Text
References
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- Choudhary S, Mohanka R. 2012. In vitro antagonism of indigenous trichoderma isolates against phytopathogen causing wilt of lentil. Int J of Life Sci and Pharma Res. 2: 195-202.
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- Garkoti A, Kumar V, Tripathi HS. 2014. Control of wilt disease of lentil through bio control agents and organic amendments in Tarai region of Uttarakhand, India. J of Envir Bio., 35: 1067–1070.
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- Manthan A, Balabaskar P. 2002. In vitro evaluation of fungitoxicity of selected natural products on heavy inoculum and conidial germination of Fusarium moniliforme. Ind Phytopath. 61: 238–242.
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- Phytopathology 45: 417–420.
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- Evaluation of Mungbean Genotypes Against Major Insect Pests
Abstract Views :81 |
PDF Views:63
Authors
Affiliations
1 Department of Entomology, Jawaharlal Nehru Krishi Vishwa Vidyalaya, Jabalpur 482004, Madhya Pradesh, IN
2 Department of Entomology, Rajasthan College of Agriculture, Maharana Pratap University of Agriculture and Technology, Udaipur 313001, Rajasthan, IN
1 Department of Entomology, Jawaharlal Nehru Krishi Vishwa Vidyalaya, Jabalpur 482004, Madhya Pradesh, IN
2 Department of Entomology, Rajasthan College of Agriculture, Maharana Pratap University of Agriculture and Technology, Udaipur 313001, Rajasthan, IN
Source
Indian Journal of Entomology, Vol 84, No 2 (2022), Pagination: 380-383Abstract
Field experiment was conducted to screen thirteen genotypes of mungbean against major sucking and lepidopteran pests. The incidence of pests was assessed at 15 DAS (Days after sowing) and continued till maturity at weekly intervals. The results revealed that least mean whitefly Bemisia tabaci (Genn.) incidence/plant was observed in genotype Virat (5.17), TM-37 (5.31) and Shikha (5.40). Similarly, the least aphid Aphis craccivora Koch incidence was on Virat (2.73), Shikha (2.77), TM-37 (2.89) and PDM-139 (2.91). The genotypes, Virat (1.26), Shikha (1.26), PDM-139 (1.30) and TM-37 (1.31) were with lowest leaf hopper Empoasca kerri Pruthi counts; and the least larval counts of tobacco caterpillar Spodoptera litura (F.) was in Shikha (0.22), Virat (0.24), PDM-139 (0.25), TM-37 (0.28) and TJM-196 (0.31). Similarly, least incidence of blue butterfly Lampides boeticus L., larva was observed on Virat (0.21), Shikha (0.23) and PDM-139 (0.26) genotypes. Thus, the genotypes viz., Virat, TM-37, PDM-139 and Shikha were found to be tolerant against the major sucking and lepidopteran insect pests.Keywords
Mungbean, Bemisia tabaci, Aphis craccivora, Empoasca kerri, Spodoptera litura, Lampides boeticus, Host Plant Resistance.Full Text
References
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- Mandal S M A. 2005. Field screening of green gram varieties against pod borers. Environment and Ecology 23(2): 381.
- Rahad A A M, Rahman M S, Akter T, Akter J, Rahman A, Sheik M S A. 2018. Varietal screening of mungbean against whitefly and aphid. Journal of Bioscience and Agriculture Research 18(1): 1478-1487.
- Singh M, Bairwa D K, Dadrwal B K, Chauhan J. 2019. Screening of green gram genotypes for resistance against sucking insect pests. International Journal of Pharmacognosy and Phytochemical Research 8(2): 933-938.
- Singh S K, Singh P S. 2014. Screening of mungbean (Vigna radiata) genotypes against major insects. Current Advances in Agricultural Sciences 6(1): 85-87.
- Soundararajan R P, Chitra N, Geetha S. 2013. Host plant resistance to insect pests of grain legumes- a review. Agricultural Reviews 34(3): 176-187.
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- Host Plant Resistance to Sesamum Leaf Webber and Capsule Borer Antigastra catalaunalis (Duponchel)
Abstract Views :67 |
PDF Views:54
Authors
Affiliations
1 Project Coordinating Unit Sesame and Niger, College of Agriculture, Jawaharlal Nehru Krishi Vishwa Vidyalaya, Jabalpur 482004, Madhya Pradesh, IN
2 Department of Entomology, Maharana Pratap University of Agriculture and Technology, Udaipur 313001, Rajasthan, IN
1 Project Coordinating Unit Sesame and Niger, College of Agriculture, Jawaharlal Nehru Krishi Vishwa Vidyalaya, Jabalpur 482004, Madhya Pradesh, IN
2 Department of Entomology, Maharana Pratap University of Agriculture and Technology, Udaipur 313001, Rajasthan, IN
Source
Indian Journal of Entomology, Vol 84, No 3 (2022), Pagination: 607-610Abstract
Fifty-four genotypes of sesamum were evaluated against leaf webber and capsule borer Antigastra catalaunalis Duponchel. Correlation of the physiological parameters of the genotypes was observed with plant, flower, capsule damage and larval density. It was found that moisture content (%) and chlorophyll content index exhibiting significant positive correlation with damage and larval incidence. Ash content and water saturation deficit showed significant negative correlation.Keywords
Sesame, genotypes, physiological traits, Antigastra catalaunalis, correlation coefficient, moisture, chlorophyll, ash content, water saturation coefficientsFull Text
References
- Ahirwar R M, Gupta M P, Smita B. 2010. Bioecology of leaf roller / capsule borer Antigastra catalaunalis Duponchel. Advances of Bioresearch 1(2): 90-104.
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- Makwana Mitesh, Panday A K, Sharma Kuldeep and Mahore Prince. 2020. Evaluation of sesame genotypes against leaf webber and capsule borer Antigastra catalaunalis (Duponchel) Indian Journal of Entomology 82(4): 819-822.
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- Swapna B, Srikanth T, Padmaja D, Srinivasnaik S. 2021. Evaluation of sesame genotypes for their relative resistance against leaf webber and capsule borer, Antigastra catalaunalis Duponchel (Crambidae: Lepidoptera) Journal of Entomology and Zoology Studies 9(2): 173-177.
- Biostimulant: An Innovative Approach for Sustainable Crop Production
Abstract Views :48 |
PDF Views:34
Authors
Affiliations
1 Indian Council of Agricultural Research, New Delhi 110 001, IN
2 Indian Agricultural Research Institute, New Delhi 110 012, IN
1 Indian Council of Agricultural Research, New Delhi 110 001, IN
2 Indian Agricultural Research Institute, New Delhi 110 012, IN
Source
Current Science, Vol 125, No 4 (2023), Pagination: 377-382Abstract
Biostimulant is a substance or microorganism, or a combination of both, which stimulates the physiological activities of plants, leading to increased uptake and efficiency of nutrients, crop quality and tolerance to stress related to biotic and abiotic factors. Biostimulant helps optimise crop productivity and enhances the quality of the produce, which help maintain an eco-friendly environment to sustain agricultural production. Various botanical extracts, biochemicals, protein hydrolysates and amino acids, vitamins, cell-tree microbial products, antioxidants, anti-transpirants, humic and fulvic acids, and their derivatives are included under biostimulants. Recently, the fertilizer (inorganic, organic or mixed) Control Amendment Order, 2021, has been passed by the Government of India to promote biostimulants in the country. The Central Biostimulant Committee advises on various matters related to biostimulants. Participation of stakeholders, farmers, researchers, policymakers and regulators is essential to popularize biostimulants for their profitable and sustainable usage. This article focuses on various aspects of biostimulants, including regulatory aspects in India.Keywords
Biostimulants, Innovative Approach, Metabolic Enhancers, Regulatory Aspects, Sustainable Crop Production.Full Text
References
- de Vasconcelos, A. C. F. and Chaves, L. H. G., Biostimulants and their role in improving plant growth under abiotic stresses. In Bio-stimulants in Plant Science (eds Mirmajlessi, S. M. and Radhakrishnan, R.), IntechOpen Limited, London, UK, 2019. pp. 1–14; doi: 10.5772/intechopen.88829.
- Zhang, X., Ervin, E. H. and Schmidt, R. E., Seaweed extract humic acid and propiconazole improve tall fescue sod heat tolerance and post-transplant quality. Hortic. Sci., 2003, 38, 440–443.
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