ID: 63397
Title: Assessment of rainfall variability and its impact on groundnut yield in Bundelkhand region of India
Author: Akram Ahmed, Dibyendu Deb and Surajit Mondal
Editor: S.K.Satheesh
Year: 2019
Publisher: Current Science Association and Indian Academy of Sciences.
Source: ENVIS, CES & EWRG, CES
Reference: Current Science Vol. 117 (5) 794-803 (2019)
Subject: Assessment of rainfall variability and its impact on groundnut yield in Bundelkhand region of India
Keywords: Bundelkhand region, groundnut yield, Indian monsoon rainfall, rainfall intensity class.
Abstract: Bundelkhand region, one of the vulnerable areas in central India, is prone to frequent drought and crop failure due to annual rainfall variability. In this study, longterm (113 years) fine resolution (0.25º x 0.25º) daily gridded rainfall data been analysed to depict a spatial variation of annual rainfall over a Bundelkhand. An increase in annual rainfall has been observed from north to south of the study area. A declining trend varying from 0.49 to 2.16 mm per year is observed in annual rainfall time series in most parts of the study area. Trend analysis of monsoon rainfall shows overall declining trend over the study area. Rainfall events are categorized in various classes and their spatial trends over Bundelkhand are depicted. Kharif crop calendar (July-September) as well as its yield in India, including Bundelkhand, is primarily based on monsoonal rainfall parameters. A study on the relationship between groundnut yield and monsoonal rainfall parameters for a Jhansi district in Bundelkhand shows highest correlation (0.46) between groundnut yield and rainfall class 3 events (16 ≤ rainfall intensity, mm day-1 < 32) occurred in a year followed by cumulative rainfall amount precipitated during June-July (JJ).The frequency of rainfall class 5 type (64 ≤ rainfall intensity , mm day-1 <128) as well as a delay in onset of monsoonal rainfall have shown a negative correlation with groundnut yield. This study depicts rainfall pattern over the study area and identifies the vulnerable pattern over the study area and identifies the vulnerable areas that are likely to experience more water stress due to rainfall variability.
Location: T E 15 New Biology building
Literature cited 1: Granados, R., Soria, J. and Cortina, M., Rainfall variability, rainfed agriculture and degree of human marginality in North Guanajuato, Mexico .Singappore J.Trop.Geo. 2017, 38, 153-166.
Ayoade, J.O., Climate Change, Vantage Publishers, Ibadan, 2004.
Literature cited 2: Bannayan, M., Loftabadi, S., S., Sanjani, S., Mohamadian, A. And Aghaalikhani, M. effects o precipitation and temperature on crop production variability in northeast Iran. Int. J. Biometeorol., 2011, 55, 387-401.
Gautam, H.R., Bhardwaj, M.L. and Kumar, R., Climate Change and its impact on plant diseases .Curr.Sci. 2013, 105, 1685-1691.
ID: 63396
Title: Summer monsoon of 2019: Understanding the performance so far and speculating about the rest of the season
Author: Sulochana Gadgil, P.A. Francis and P.N.Vinayachandran
Editor: S.K.Satheesh
Year: 2019
Publisher: Current Science Association and Indian Academy of Sciences.
Source: ENVIS, CES & EWRG, CES
Reference: Current Science Vol. 117 (5) 783-793 (2019)
Subject: Summer monsoon of 2019: Understanding the performance so far and speculating about the rest of the season
Keywords: Deficit rainfall in June, ENSO, EQUINOO, Indian summer monsoon
Abstract: The summer monsoon of 2019 began with a massive deficit in the all-India June rainfall of about 33 of the mean. This led to considerable anxiety since a large deficit in June had occurred last in the summer monsoon of 2014, which has turned out to be a drought. Here, we have attempted to unravel the factors that led to the deficit in June 2019 and also the above-normal rainfall in July. We show that the deficit in June 2019, as that of June 2014, can be attributed tit he EI Nino. The phase of the other important mode, Equatorial Indian Ocean Oscillation (EQUINOO), has been favourable throughout and led to the recovery of the monsoon in July when the EI Nino weakened. It is expected that EQUINOO will play an important role in determining that rainfall in August and September, and hence the seasonal rainfall in2019.Analysis of cases like 2003 and 2008, when the positive phase of EQUINOO lasted only during June and July and of 2007, when it lasted throughout the season has given an insight into the role of the sea surface temperature (SST) of the western equatorial Indian Ocean (WEIO) in sustenance of the positive phase of EQUINOO. We find that , unlike in 2003 and 2008, the SST of the WEIO has started increasing in late July, partly due to the mechanism which operated in 2007 and has led to a positive SST anomaly by 10 August , whereas sustained cooling has led to a negative SST anomaly over eastern equatorial Indian Ocean. Since conditions now appear to be favourable for sustenance of a positive phase of EQUINOO, it is expected that the seasonal rainfall will be above normal.
Location: T E 15 New Biology building
Literature cited 1: Gadgil, Sulochana and Gadgil, Siddhartha, The Indian monsoon, GDP and agriculture.Econ.Polit.Wkly., 2006, XLI, 4887-4895.
http://www.imd.gov.in (accessed on 14 August 2019).
Literature cited 2: Gadgil, Sulochana and Francis, P.A., El Nino and the Indian monsoon in June.Curr.Sci. 2016, 110 (6), 1010-1022.
Sajani, S., Gadgil, Sulochana, Rajendran, K., Varghese, S.J. and Kitoh, A., Monsoon rainfall over India in June and link with northwest tropical Pacific.Theor.Appl.Climatol. 2018, https://doi.org/10.1007/s00704-018-2440-6
ID: 63395
Title: A critical evaluation of environmental impact assessments: case study of Goa mines, India.
Author: Manar N.Datar, Sujeet Dongre and Madhav Gadgil
Editor: S.K.Satheesh
Year: 2019
Publisher: Current Science Association and Indian Academy of Sciences.
Source: ENVIS, CES & EWRG, CES
Reference: Current Science Vol. 117 (5) 776-782 (2019)
Subject: A critical evaluation of environmental impact assessments: case study of Goa mines, India.
Keywords: Developmental projects, environmental impact assessments, floristic diversity, mines, plant lists, species and area.
Abstract: Environmental impact assessments (EIAs) form the basis of estimation of environmental and socio-economic impacts of developmental projects. In this study we examine 65 EIA reports of mines in Goa. It is mandatory that the reports should provide, among others, list of plant species from 314.2 and 78.5 sq.km area for lease areas of mines above 0.5 and below 0.5 sq.km respectively. On the basis of available data covering different spatial scales for the Western Ghats, we determined the species-area relationships, and expected number of species in area of these sizes. We find the plant lists in the EIA reports to be highly incomplete and defective in many ways, including with respect to information on water resources, and ore transport by trucks and barges. We conclude by commending a set of measures focusing on transparency and public involvement to correct the situation.
Location: T E 15 New Biology building
Literature cited 1: ASCI, Mining and beneficiation of minerals, Environmental Impact Assessment Guidance Manual, Administrative Staff College of India, Hyderabad, 2010.
ESG, The Dandeli EIA fraud .Environment Support Group Trust, Bengaluru. 2000; http://static.esgindia.org/caimpaigns/dandeli/docs.html.
Literature cited 2: Daniels, R., Evaluation of tech environment impact assessment conducted by Tata Energy Research Institute, Bangalore for the Dandeli mini-hydel project of M/S Murdeshwar Power Corporation Ltd across River Kali near Dandeli in Uttara Kannada district,Karnataka.2000; http://static .esgindia.org/campaigns/dandeli/docs/Daniel%20TERI%20Note.htm
Dutta, R. and Sreedhar, R., A framework for EIA reforms in the Western Ghats .EIA Resource and Response Centre, New Delhi, 2011.
ID: 63394
Title: Development of eco-and textile industry-friendly, short-statured hirsute cotton variety, Indica
Author: V.T.Sundaramurthy
Editor: S.K.Satheesh
Year: 2019
Publisher: Current Science Association and Indian Academy of Sciences.
Source: ENVIS, CES & EWRG, CES
Reference: Current Science Vol. 117 (5) 745-747 (2019)
Subject: Development of eco-and textile industry-friendly, short-statured hirsute cotton variety, Indica
Keywords: Development, Eco-and textile industry
Abstract: Cotton is one of the most important crops interlinked with culture, civilization and economy of mankind. It provides fibre, food-related products, including vegetable oil, protein and also cellulose for making plastics and explosives. Among the different species of cotton, Gossypium arboretum, G.herbaceum, G.hirsutum and G.barbadense are being cultivated in 122.35 lakh ha in different ecosystems like rainfed system with assured rainfall and irrigated situations, and also rice fallows in India. Annually 35.1 million bales of cotton is being produced in India, contribution to about 14 % of industrial production and 4 % of the gross domestic product. The native species of G.arboretum and were predominately cultivated in earlier times.
Location: T E 15 New Biology building
Literature cited 1: Divya P.S., Natl.J.Adv. Res., 2017, 3, 60-65.
FAO, Fertilizer use by the crops in India; http://www.fao.org/docrep /009/a0257e/A0257E01.htm
Literature cited 2: Md. Wasim Aktar, Sengupta, D. And Chowdhury, A., Interdiscip. Toxicol., 2009, 2, 1-12.
Sundaramurthy, V.T., World cotton Research Conference -3.Cape Town, South Africa, 2003, pp.607-612.
ID: 63393
Title: Development of India’s first integrated expert urban flood forecasting system for Chennai
Author: Subimal Ghosh, Subhankar Karmakar, Anmitra Saha, Mohit Prakash Mohanty, Shees Ali,Satya Kiran Raju,Vrinda Krishnakumar, Maneesha Sebastian, Manasa Ranjan Behera, R.Ashrit, P.L.N. Murty, K.Srinivas, B.Narasimhan, Tune Usha, M.V.Ramana Murthy, P.Thiruv
Editor: S.K.Satheesh
Year: 2019
Publisher: Current Science Association and Indian Academy of Sciences.
Source: ENVIS, CES & EWRG, CES
Reference: Current Science Vol. 117 (5) 741- 745(2019)
Subject: Development of India’s first integrated expert urban flood forecasting system for Chennai
Keywords: Development, urban flood forecasting system, Chennai
Abstract: Floods are the most common and recurring natural hazards faced by humans since time immemorial. They pose a severe threat to the population, environment and economy in many places across the world, especially urban areas. Urbanization caused due to increasing migration into the floodplains has substantially increased the trend of devastation due to floods in a developing country like India. In Chennai and the surrounding suburban areas, torrential rainfall associated with low-pressure systems engulfed the city during December 2015, affecting more than 4 million people along with economic damages that cost around 3 billion USD. In view of the above-mentioned extreme event in Chennai, it was felt necessary that an expert system be designed for flood forecasting along with flood inundation maps and possible means of flood management through appropriate interventions for dealing with any such future events.
Location: T E 15 New Biology building
Literature cited 1: Sarkar, A., Paromita Chakraborty, John P.Geoge and Rajagopal, E.N., Report, NMRF/TR/02/2016; https://www.ncmrwf.gov.in/Reports-eng/NMRF_TR2_2016.pdf.
Shastri, H., Ghosh, S. and Karmakar, S., J.Geophys.Res.Atmos., 2017, 122 (3), 1617-1634
Literature cited 2: Thiruvengadam, P., Indu, J. and Ghosh, S., Adv.Water Resour., 2019, 126, 24-39.
Luettich Jr.R.A.and Westerink, J.J.Int.J.Numer.Methods Fluids, 1991, 12 (10), 911-928; https:doi.org/10.1002/fld.1650121002.
ID: 63392
Title: Indian Summer Monsoon
Author: Arindam Chakraborty, J.Srinivasan
Editor: S.K.Satheesh
Year: 2019
Publisher: Current Science Association and Indian Academy of Sciences.
Source: ENVIS, CES & EWRG, CES
Reference: Current Science Vol. 117 (5) 735-736 (2019)
Subject: Indian Summer Monsoon
Keywords: Summer Monsson
Abstract: Will the onset of the Indian summer monsoon change due to increased concentration of anthropogenic aerosols? What should be an ideal definition of the onset of monsoon? How will the onset of the Indian monsoon change in the future? These were some of the key questions that were discussed in a workshop held recently.
Location: T E 15 New Biology building
Literature cited 1:
Literature cited 2:
ID: 63391
Title: Burrow morphology of the Ocypodid crab Ocypode ceratophthalma at Chandipur Cast, Eastern India and its implications
Author: Jyotirmoy Paul, Subhronil Mondal, Rishikesh Kayal and Deepjay Sarkar
Editor: S.K.Satheesh
Year: 2019
Publisher: Current Science Association and Indian Academy of Sciences.
Source: ENVIS, CES & EWRG, CES
Reference: Current Science Vol. 117 (4) 699-705 (2019)
Subject: Burrow morphology of the Ocypodid crab Ocypode ceratophthalma at Chandipur Cast, Eastern India and its implications
Keywords: Chandipur, crab burrow morphology, crab energetic, Ocypodidae
Abstract: Several burrow morphological features of crab Ocypode ceratophthalma including burrow diameter, orientation, inclination, branching and volume were studied from Chandipur, a sedimentologically and biologically diverse beach on the eastern Indian coast. Burrow morphologies (e.g. I, J.Y) were independent of their positions with respect to the coast line. In addition, no correlation between burrow morphology and burrow diameter was observed; however, diameter of burrow appeared to be a good proxy of the total amount of sediment excavated. Burrow diameters are significantly smaller in the foreshore compared to that of the backshore, suggesting that larger individuals reside along the backshore, where they excavate deeper and large-diameter burrows to minimize chances of desiccation. Smaller burrows are motre or less vertical, whereas larger burrows are inclined towards the land, probably to stabilize their domicile from tidal activities, as well as to minimize energy required to excavate sediments. All these suggest that different types of abiotic factors determine the Ocypode burrow morphology and their habitat segregation.
Location: T E 15 New Biology building
Literature cited 1: Brown, A.C. and McLachlan, A., Ecology of Sandy Shores, Elsevier, Amsterdam, 1990, 2nd edn.
Lucrezi, S. and Schlacher, T.A., The ecology of ghost crabs.Oceanogr.Mar.Biol:Ann.Rev, 2014, 52,201-256.
Literature cited 2: Weber, F., Nomenclator entomologicus secundum entomologiam sysematicam...Fabricii, adjectis speciebus recens detectis et varietatibus.Kiel &Hamburg, C.E., Bohn., 1795, 8, 172.
De, C., Biological reworking of sediments by crabs: a use for erosion of Digha beach, West Bengal.Curr.Sci., 1998, 75, 617-620.
ID: 63390
Title: Performance of sorghum genotypes under zero tillage conditions in rice fallows with reference to stem borer Chilo partellus
Author: P.Yogeswari, C.Sandhya Rani and G.Ramachandra Rao
Editor: S.K.Satheesh
Year: 2019
Publisher: Current Science Association and Indian Academy of Sciences.
Source: ENVIS, CES & EWRG, CES
Reference: Current Science Vol. 117 (4) 692-699 (2019)
Subject: Performance of sorghum genotypes under zero tillage conditions in rice fallows with reference to stem borer Chilo partellus
Keywords: Genotypes, sorghum, stem borer, stem tunnel length, susceptible
Abstract: A field experiment was carried out on screen the sorghum genotypes against stem borer in rice fallow under zero tillage condition. Based on mean stem tunnel length, the genotypes were categorized as least susceptible (0-5 cm) , moderately susceptible (-10 cm) and highly susceptible (>10cm) .The resistant check CSH 16 (C) was found least susceptible with 4.65 cm, whereas NTJ-2 (C),NLCW-6 and N-14 were found to e highly susceptible as they recorded 10.45, 10.46 and 11.44cm mean stem tunnel length respectively. The remaining genotypes were moderately susceptible with 6.60-9.84 cm mean stem tunnel length. There was non-significant positive correlation between the number of larvae and leaf damage, dead hearts, stem tunnelling, white ears and chaffy grains respectively, but it was negative for tiller damage.
Location: T E 15 New Biology building
Literature cited 1: Agricultural Census. In Proceedings in ICAR workshop on Global Consultation on Millets Promotion for Health and Nutrition Security, Directorate of Economics and Statistics, Department of Agriculture and Cooperation ,Government of India, 23 December 2013, p.5
Agricultural Statistics at a Glance-Andhra Pradesh, 2012-2013, pp.97-99
Literature cited 2: Duale, A.H. and Nwanze, K.F., Incidence and distribution in sorghum of the spotted borer Chilo partellus and associated natural enemies in farmers ‘field s in Andhra Pradesh and Maharashtra states. Int. J. Pest Manage. 1999, 45 (1), 3-7.
Borad, P.K. and Mittal, V.P., Assessment of losses caused by pest complex to sorghum hybrid CSH-5.Indian J.Entomol. 1983, 15, 271-78.
ID: 63389
Title: Cognitive issues observed in the adoption of guidelines for earthquake-resistant masonry construction
Author: P.P.Sivan, A. Praveen and C.Gajendran
Editor: S.K.Satheesh
Year: 2019
Publisher: Current Science Association and Indian Academy of Sciences.
Source: ENVIS, CES & EWRG, CES
Reference: Current Science Vol. 117 (4) 690-692 (2019)
Subject: Cognitive issues observed in the adoption of guidelines for earthquake-resistant masonry construction
Keywords: Construction guidelines, cognitive vulnerability, earthquake-reisistant masonary, seismic safety
Abstract: The cognitive appreciation of seismic risk among the local population is one of the key drivers in the adoption of the guidelines issued for earthquake-resistant masonry construction. The present study gives a broader perspective on the cognitive vulnerability that exists among the local population in understanding and adopting the proposed earthquake-resistant construction guidelines based on a detailed evaluation of the prevailing practices at two regions in Kerala, India. The exercise was carried out among 197 houses located in the above region s, which included both recently built homes and those with exposure to earlier earthquakes. The study highlights the need for evolving technology-supported intelligent interactions that would help the stakeholders take appropriate decisions on various disaster-resistant practices.
Location: T E 15 New Biology building
Literature cited 1: Bilham, R.and Hough, S., Future earthquakes in the Indian subcontinent: inevitable hazard, preventive risk. Asian J., 2006,12.Jain,S.K.and Nigam, N.C., Historical developments and current status of earthquake engineering in India.12th World Congress on Earthquake Engineering, Auckland, New Zealand, 2000.
Literature cited 2: Jain,S.K., Indian earthquakes-an overview. Indian Concr.J.1998, 72,555-561.
Pinchao, L., Liuxin,J., Bingsheng,L., Changtao,C., Dongping,F., Peilun,R.and Mengchun,Z., A cognitive perspective on the safety communication actors that affect worker behaviour.J.Build.Constr.Plann.Res.,2014,2, 183-197.
ID: 63388
Title: Characteristics of aniline and nitrobenzene adsorption on single-walled, muti-walled and graphitized multi-walled carbon nanotubes
Author: Shuai Liu, Yifei Zha, Yuanyuan Wang, Qi Wei, Ying Zhang, Yuankai Zhang, Hongchen Wang, Lu Qi and Xianglong Xu
Editor: S.K.Satheesh
Year: 2019
Publisher: Current Science Association and Indian Academy of Sciences.
Source: ENVIS, CES & EWRG, CES
Reference: Current Science Vol. 117 (4) 683-689 (2019)
Subject: Characteristics of aniline and nitrobenzene adsorption on single-walled, muti-walled and graphitized multi-walled carbon nanotubes
Keywords: Adsorption, aromatic organics, carbon nanotubes, relative potential
Abstract: Herein, we assess the relative potential of single-walled, multi-walled and graphitized multi-walled carbon nanotubes (CNTs) for the adsorptive removal of organic species using aniine and nitrobenzene as model aromatic contaminants. The obtained results reveal that the adsorption behaviour of aromatic organics is significantly affected by their functional groups (especially when functionalized CNTs are used as adsorbent), providing valuable guidance for adsorption-based removal of organic contaminants from the environment.
Location: T E 15 New Biology building
Literature cited 1: Xu, P., Yu, B., Li, F. L., Cai, X.F. and Ma, C.Q., Microbial degradation of sulphur, nitrogen and oxygen heterocycles. Trends Microbial., 2006, 14, 398-405.
Bi, E., Schmidt, T.C., and Haderlein, S.B., Environmental factors influencing sorption of heterocyclic aromatic compounds to soil.Environ.Sci., Technol., 2007, 41, 3172-3178.
Literature cited 2: Rouquerol, J., Rouquerol, F., Llewellyn, P., Maurin, G. and Sing, K.S., Adsorption by Powders and Porous Solids: Principles, Methodology and Applications, Academic Press, 2013.
Sillanpaa,M.E., Kurniawan,T.A., and Lo,W.H., Degradation of chelating agents in aqueous solution using advanced oxidation process (AOP). Chemosphere, 2011, 83, 1443-1460.
ID: 63387
Title: Changes in behaviour following a ‘rank changeover by challenge’ in the Nicobar long-tailed macaque (Macaca fascicularis umbrosus)
Author: Arijit Pal, Honnavalli N.Kumara, Avadhoot D.Velankar, Partha Sarathi Mishra and Mewa Singh
Editor: S.K.Satheesh
Year: 2019
Publisher: Current Science Association and Indian Academy of Sciences.
Source: ENVIS, CES & EWRG, CES
Reference: Current Science Vol. 117 (4) 672-682 (2019)
Subject: Changes in behaviour following a ‘rank changeover by challenge’ in the Nicobar long-tailed macaque (Macaca fascicularis umbrosus)
Keywords: Between-group encounters, grid use, Nicobar long-tailed macaque, rank changeover, reproductive behaviour
Abstract: A rank changeover is a sequal strategy by primate males to gain access to reproductive females. We observed one such event in the Nicobar long-tailed macaque (Macaca fascicularis umbrosus) at the great Nicobar Island, India. In the three and half months of the post-rank changeover period, the home range reduced significantly while there was no change in the intensity of range use and day range length. The sleeping sites in the post-rank changeover period were confined to the centre of the home range. The overall mating rate and aggressive mating approach by males increased significantly during the post-rank changeover period. The females developed sequel swelling and started soliciting the immigrated males within two weeks after the rank changeover event. During this period no female conceived, which suggests that they used situation-dependent receptivity with deceptive swelling as a counter strategy to avoid male aggression for copulation.
Location: T E 15 New Biology building
Literature cited 1: Clutton-Brock, T.H. and Huachard,E., Social competition and selection in males and females.Philos.Trans.R.Soc.London,Ser.B, 2013,368,20130074.
Albert, S.C., Magnitude and source of variation in male reproductive performance. In the Evolution of Primate Societies (eds Mitani, J.C. et al.), University of Chicago Press, Chicago, USA, 2012, pp.412-431.
Literature cited 2: Kappeler, P.M. and van Schaik, C.P., Evolution of primate social systems .Int.J.Primatol. 2002, 23, 707-740.
Van Noordwijk, M.A. and van Schaik, C.P., Sexual selection and the carriers of primate males: paternity concentration, dominance acquisition tactics and transfer decision. In Sexual Selection in Primates: New and Comparative Perspectives (eds Kappeler, P.M. and van Schaik, C.P), Cambridge University Press, Cambridge, UK, 2004, pp.208-229.
ID: 63386
Title: Estimating stream piracy in the lower Ganga Plain of a Quaternary geological site in West Bengal, India applying sedimentological bank facies, log and geospatial techniques
Author: B. Bera, S. Bhattacharjee and C.Roy
Editor: S.K.Satheesh
Year: 2019
Publisher: Current Science Association and Indian Academy of Sciences.
Source: ENVIS, CES & EWRG, CES
Reference: Current Science Vol. 117 (4) 662-671 (2019)
Subject: Estimating stream piracy in the lower Ganga Plain of a Quaternary geological site in West Bengal, India applying sedimentological bank facies, log and geospatial techniques
Keywords: Bank materials, geospatial technique, interfluves, quaternary sites, stream piracy
Abstract: River Bhagirathi is a distributary channel of River Ganga, and Babla is one of its right-bank tributaries in the Ganga delta plain. The Bhagirathi flows in a meandering pattern through the New Quaternary alluvium plain, whereas the Babla flows through the Old Quaternary deposits of yellowish –brown sand, silt and clay. As the Bhagirathi is a distributary of River Ganga, it brings in million tonnes of sediments annually. Mid-channel bar formation, bar dynamics and non-cohesive nature of bank materials promote bank failure and rapid shifting of the channels in the Newer Quaternary sites. As the Bhagirathi migrates towards River Babla, the interfluves zone is being progressively engulfed by the course of the former. To estimate the stream piracy or capture, bank materials, internal organization of mid-channel bar, flow parameters (velocity, channel depth, discharge, etc.) have been taken into consideration. This study documents changes in channel morphology and hydrological parameters, dynamic morphology and hydrological regime of the fluvial system from 1852 to 2017.It predicts the actual time when the Bhagirathi will capture River Babla near village Natungram. The study also discusses why in recent years the rate o lateral migration has increased for a particular portion on the right bank of River Bhagirathi near Natungram.
Location: T E 15 New Biology building
Literature cited 1: Allen, J.R. A review of the origin and characteristics of recent alluvial sediments. Sedimentology, 1965, 5 (2), 89-191; https://doi.org/10.1111/j.1365-3091.1965.tb01561.x
Jain, V. and Sinha, R., Fluvial dynamics of an anabranching river system in Himalayan foreland basin, Baghmati river, north Bihar plains, India. Geomorphology, 2004, 60 (1-2), 147-170; https://doi.org/10.1016/j.geomorph.2003.07.008.
Literature cited 2: Jones, L.S.and Schumm, S.A.Causes of Avulsion: an overview .In Fluvial sedimentology VI, Blackwell Science, Oxford, UK, 1999, vol.28, pp.171-178; https:books.google.co.in/books?h1=en&Ir=&id=K9rsR2MmvVs&oi=%20fnd&pg=PA171&dq#v
Tornqvist, T.E.and Bridge, J.S., Spatial variation of overbank aggradation rate and its influence on avulsion frequency.Sedimentology, 2002, 49 (5), 891-905; https://doi.org/10.1046/j.1365-3091.2002.00478.x
ID: 63385
Title: Adsorption of arsenic using low cost adsorbents: guava leaf biomass, mango bark and bagasse
Author: Devendra Mohan, Markandeya, S. Dey, S.B. Dwivedi and S.P.Shukla
Editor: S.K.Satheesh
Year: 2019
Publisher: Current Science Association and Indian Academy of Sciences.
Source: ENVIS, CES & EWRG, CES
Reference: Current Science Vol. 117 (4) 649-661 (2019)
Subject: Adsorption of arsenic using low cost adsorbents: guava leaf biomass, mango bark and bagasse
Keywords: Adsorption, arsenite ion-As (III), isotherms, kinetics, low-cost adsorbents
Abstract: Adsorbents prepared from inexpensive materials of guava leaf biomass, mango bark and bagasse were studied for As (III) removal from the aqueous solution. The effects of pH, contact time, initial As (III) concentration and adsorbent dosage on the adsorption of As (III) were studied using batch experiments. Adsorption process was also verified with Langmuir, Frendlich, Temkin and Redlich-Peterson models. Langmuir isotherm fitted best in the experimental data. Application of Langmuir isotherm to the system yielded the maximum capacities of 1.35 mg g-1, 1.25 mg g-1 and 1.05 mg g-1 for bagasse, mango bark and guava leaf biomass respectively, in the range of As (III) concentration as 10-140 mg 1-1.The dimensionless equilibrium parameter, RL, signifies favourable adsorption of As (III) on all adsorbents and was observed to be in the range of 0.029-0.294, 0.21-0.235 and 0.021-0.234, for bagasse, mango bark and guava leaf biomass respectively (0<RL<1).The adsorption process was observed to follow pseudosecond-order kinetic model.
Location: T E 15 New Biology building
Literature cited 1: Shukla, N.K., Markendya and Shukla, V.K., Arsenic and physic-chemical calamity in the ground water samples of Ballia district, Uttar Pradesh, India. Iranica J.Energy Environ., 2015, 6 (4), 328-333.
Choong, Y.S.T.,Chuah,G.T., Robia,H.Y., Koay,L.F.G., and Azni,I., Arsenic toxicity, health hazards and removal techniques from water: an overview. Desalination, 2007, 217, 139-166.
Literature cited 2: Shevade, S. and Ford. R., Use of synthetic zeolites for arsenate removal from pollutant water. Water Res., 2004, 38, 3197-3204.
Mandal, B.K. and Suzuki, K.T., Arsenic round the world: a review .Talanta, 2002, 58, 01-235.
ID: 63384
Title: Tissue-specific activation tagging in Arabidopsis thaliana for identification and isolation of genes of agronomic importance
Author: Kushwah Neetu Singh
Editor: S.K.Satheesh
Year: 2019
Publisher: Current Science Association and Indian Academy of Sciences.
Source: ENVIS, CES & EWRG, CES
Reference: Current Science Vol. 117 (4) 627-637 (2019)
Subject: Tissue-specific activation tagging in Arabidopsis thaliana for identification and isolation of genes of agronomic importance
Keywords: Activation tagging, Arabidopsis thaliana, morphological variants, promoters
Abstract: Activation tagging is used to recover and clone dominant gain-of function alleles and usually employs a T-DNA vector containing four tandem copies of the CaMV35S enhancer sequence outward usually at the right border. This strategy, however, is not efficient as it could result in overexpression of multiple genes or genes far away from the insertion site. Therefore, we tested constitutive (CaMV35S) and tissue-specific (TFL1 and rbcS2B) promoters for activation tagging. From an initial screening of 400 T1 plants, we identified several morphological variants which include seedling mutants(single cotyledon, slow seedling growth, long root, short root), leaf mutants (fused leaves, excess rosettes, altered shape, hyponastic leaves, bushy rosettes, altered leaf polarity), inflorescence mutants (fascinated inflorescence , inflorescence fused with the petiole of rosette leaf) and flowering time and growth habit mutants (dwarf, tall , miniature, late flowering, sturdy stem.) Comparison of different activation tagging populations for different categories of mutants in the TFL1 promoter activation tagged population; leaf and inflorescence mutant frequencies were higher in rbcS2B promoter activation tagged population, while the flowering time and growth habit mutant frequency was higher in CaMV35S promoter activation tagged population. Flanking sequence analysis of three of the mutants showed that all the mutants carried an insertion in the intergenic region. Segregation analysis of seedlings for kanmycin resistance showed that on average each mutant carried about 1.3 copies of T-DNA.
Location: T E 15 New Biology building
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Literature cited 2: Krysan, P.J., Young, J.C., and Sussman, M.R., T-DNA as an insertional mutagen in Arabidopsis. Plant Cell, 1999, 11, 2283-2290.
Arabidopsis Genome Initiative, Analysis of the genome sequence of the flowering plant Arabidopsis thaliana. Nature, 2000, 408, 796-815.
ID: 63383
Title: Isolation and characterization of NBS-encoding disease resistance gene analogs in watermelon against fusarim wilt.
Author: Anand C.Reddy, B.Lavanya, T.Tejaswi, E., Sreenivasa Rao and D.C. Lakshmana Reddy
Editor: S.K.Satheesh
Year: 2019
Publisher: Current Science Association and Indian Academy of Sciences.
Source: ENVIS, CES & EWRG, CES
Reference: Current Science Vol. 117 (4) 617-626 (2019)
Subject: Isolation and characterization of NBS-encoding disease resistance gene analogs in watermelon against fusarim wilt.
Keywords: Disease management, fusarium wilt, resistance genes, watermelon
Abstract: Fusarium wilt (Fusarium oxysporum f.sp.niveum) in water melon is one of the deadliest diseases around the globe, and availability of disease –resistant varieties is moderate. Diseases management utilizing resistance genes(R-genes) /resistance gene analogs (RGAs) has proven to be a promising and successful approach. In the present study, six watermelon Gas were isolated from wild, fusarium wilt resistant genotype IIHR-82 (Citrullus lanatus var.citroides ) using degenerate primers that identify nucleotide binding site-leucine –rich repeat (NBS-LRR) regions. Multiple sequence alignment of these RGAs identified the characteristic NBS-LRR motif, and BLASTp search revealed similarity of these RGAs with other pathogenesis-related proteins. Phylogeny and motif analysis revealed genetic diversity of RGAs within those isolated from watermelon and other plant R-genes. The watermelon RGAs isolated in this study contained both TIR-NBS-LRR (TNL) and non-TIR –NBS-LRR (CNL) classes of R-genes. Protein secondary structure prediction of these watermelon RGAs revealed the composition of proteins, including α-helix, ẞ-strand, disordered region and other template-related information. Watermelon RGAs identified in the present study will help in the development of RGA-based markers for resistance to fusarium wilt of watermelon.
Location: T E 15 New Biology building
Literature cited 1: FAO, Food and Agriculture Organization of the United Nations-Statistics Division, 2016; http: //www.fao.org/faostat/en/#data/QC (accessed on 23 March 2018)
Martyn R.D. and Netzer, D., Resistance to races 0, 1, and 2 of Fusarium wilt of watermelon in Citrullus sp.PI-29631-FR.HortScience, 1991, 26 (4), 429-432.
Literature cited 2: Gusmini,G., Song,R. Wehner, T.C., New Sources of resistance to gummy stem blight in watermelon .Crop Sci., 2005, 45 (2) , 582-588.
Thies, J.A. and Levi, A., Resistance of watermelon germplasm to the peanut root-knot nematode. HortScience, 2003, 38 (7), 1417-1421.