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Chandra Gupta , A. K. Dwivedi , Padmini Shivkumar

Abstract

In U. P., Tree Improvement Programme is being undertaken in the three regions of Silviculture i.e. Hills, Sal and Southern Region. This paper includes the improvement programme of Shisham being carried out in the Forest Genetics Section, F.R.L., Kanpur. The preliminary results indicate that there are advantages in Forest Tree Improvement Programmes.

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A. K. Dwivedi ¹, A. K. Bajpai ¹, H. C. Srivastava ², R. K. Thakur ¹, N. K. Lal ¹

Affiliations
1 KDM Institute of Petroleum Exploration, ONGC Ltd. Dehradun, IN
2 Geo-Science Division, ONGC Ltd. Jorhat, IN

Abstract

The use of seismics to recognise and map stratigraphic traps is becoming an important phase of exploration activity in mature hydrocarbon provinces, world over. The stratigraphic wedge-outs have provided excellent trapping mechanism in some of the giant fields of the world. Surat depression is known to be the main kitchen for the hydrocarbon occurrences in Bombay High and around. Commercial accumulations have been encountered in Mid-Tapti and South Tapti fields of Surat depression. These accumulations are in structural traps. However, further updip, over Saurashtra shelf, the exploratory efforts have remained limited due to the absence of any structural prospects, The present paper deals with the interpretation of close grid seismic data with an objective to: i) identify seismic sequences and the depositional environments and ii) to map stratigraphic trap at levels equivalent to Eocene sands with oil indications encountered in the earlier drilled exploratory wells.

Keywords

Surat Depression, Sequence Analysis, Seismic Markers, Bombay Offshore.

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A. K. Dwivedi ¹, Joydip Sen ¹, C. Murugan ¹, G. Bairwa ¹, A. K. Bhatt ¹, P. V. Ramesh Babu ¹, S. A. Pandit ²

Affiliations
1 Atomic Minerals Directorate for Exploration and Research, Jamshedpur-831002, IN
2 Atomic Minerals Directorate for Exploration and Research, Hyderabad-500016, IN

Abstract

Hydrogeochemical exploration were earned out over an area of 700 sq km in Barabazar-Manbazar area of Purulia district, West Bengal, in order to identify target areas for the uranium mineralization. Water samples were collected from 504 borewells in the Singhbhum Group meta-Sediments and Chhotanagpur Granite Gneissic Complex (CGGC) including South Purulia Shear Zone (SPSZ). For individual Iithological domains, univariate and multivariate statistical techniques were applied to the analytical data on 10 variables, i.e. U, Na⁺, K⁺ , Mg⁺², Ca⁺², SO₄^-2, HCO₃, Cl^-, conductivity and pH. Five hydro uranium anomalous zones withm CGGC were delineated at Raghunathpur, Tentla, Chepua-Dighi, Ban and Jitujon areas. However, distinct pattern of high uranium values along with uranium/Conductivity are observed only in Raghunathpur-Tentla and Chepua-Dighi areas in the proximal tectonized zones of SPSZ. Based on the distinctive hydrogeochemical attributes, and favourable geology and structure, the areas in the vicinity of Raghunathpur-Tentla and Chepua-Dighi in the northern proximal contact of SPSZ, are designated as potential target areas for detailed geological and geophysical exploration.

Keywords

Hydrogeochemistry, Uranium, SPSZ, CGGC, Singhbhum Group, Purulia, West Bengal.

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A. K. Dwivedi ¹, G. N. Hegde ², K. Umamaheswar ³

Affiliations
1 Atomic Minerals Directorate for Exploration and Research, Department of Atomic Energy, Jamshedpur- 831 002, IN
2 Atomic Minerals Directorate for Exploration and Research, Department of Atomic Energy, Bangalore - 5 60 072, IN
3 Atomic Minerals Directorate for Exploration and Research, Department of Atomic Energy, Shillong - 793 011, IN

Abstract

New occurrences of uranium mineralisation have been discovered in quartzite and siltsone/Shale units of the Gulcheru Quartzite Formation in the area to the north of E-W trending Idupulapaya fault around Idupulapaya, Malayalamma Bhavi, Tipparajupalle and Cheruvula Bodu. Mineralisation occurs in the form of lensoid bodies of 5 m x 0.5 m to 50 m x 1.5 m and is traced intermittently over an extent of 2000 m. Physical assay result of rock samples (n=66) has indicated values from 0.011% to 1.769% eU₃O₈, 0.017% to 1.848% U₃O₈ and <0.01% ThO₂. Samples (n=21) also analysed higher concentration of Cu (<25 ppm to 3202 ppm), Mo (<25 ppm to 472 ppm), Pb (<25 ppm to 2015 ppm), V (<25 ppm to 1010 ppm), Ag (<0.25 ppm to 3.92 ppm) and Au (<0.25 ppm to 1.40 ppm). Uranium minerals identified are uranophane, autunite, uranitite, pitchblende and U-Ti complex in association with pyrite, chalcopyrite, specular haematite and limonite. The above findings have opened up new potential target areas to look for uranium in the southwestern margin of Cuddapah basin.

Keywords

Uranium, Gulcheru Quartzite, Cuddapa Basin, Andhra Pradesh.

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A. K. Dwivedi ¹, U. K. Pandey ¹, C. Murugan ¹, A. K. Bhatt ², P. V. Ramesh Babu ¹, Mallikarjun Joshi ³

Affiliations
1 Atomic Minerals Directorate for Exploration and Research (AMD), Hyderabad - 500629, IN
2 Atomic Minerals Directorate for Exploration and Research (AMD), Jamshedpur - 831 002, IN
3 Banaras Hindu University, Varanasi - 221005, IN

Abstract

The Barabazar granite, exposed at the northern margin of Singhbhum craton, Eastern India, occurs along the South Purulia Shear Zone (SPSZ) and is emplaced into the Palaeoproterozoic metapelites and felsic volcanics of Singhbhum Group. Geochemical, petrographical and geochronological studies on the Barabazar granite addressed in the work have wide implications on understanding the geodynamics of SPSZ during Palaeoproterozoic to Mesoproterozoic. Geochemically, Barabazar granite displays limited range of major oxides, alkali enrichment and highly fractionated features (SiO₂ > 75%; Eu/Eu^* = 0.16-0.33; enrichment of K, Rb, Th, U and Nb; depletion of Ba, Sr, P and Ti). It is predominantly peraluminous (molar Al₂O₃/CaO+Na₂O+K₂O (A/CNK) = 1.14-144) and contains abundant alkali feldspar, perthite, and minor plagioclase, biotite and accessory minerals. Geochemical and petrological data indicates that it is A-type granite, which formed in 'Within plate granite' tectonic set up. The Barabazar granite was emplaced at ca. 1771 Ma (Pb-Pb) in rift related environs and evolved by partial melting of stabilized lower/middle crust (initial ⁸⁷Sr/⁸⁶Sr = 0.7302 ± 0.0066 and μ₁ = 8.5 ± 0.5). Subsequently, the shear zone (SPSZ) developed during the closure of the riftogenic basin and was reactivated during the Grenvillian orogeny (Ca. 900-1300 Ma), resulting in rehomogenisation of the strontium isotopes and thereby yielding younger whole-rock Rb-Sr isotope age of c. 971 Ma for the Barabazar granite. Probably during this tectonic event, the Singhbhum craton (Southern India Shield) would have finally juxtaposed with Northern Indian Shield along Central Indian Tectonic Zone (CITZ) during the global Grenvillian orogeny.

Keywords

A-Type Barabazar Granite, Geochemistry, Geochronology, Grenvillian Orogeny, Singbhhum Craton, SPSZ, West Bengal.

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Shashi Bhushan Kumar ¹, Madhukar Kumar ², Ashok Kumar ³, Brajendra ⁴, B. K. Jha ⁴, A. K. Dwivedi ³, Rakesh Ranjan ³, Maya Kumari ³, Himanshu Singh ³, Pradeep Prasad ³

Affiliations
1 Department of Soil Science and Agricultural Chemistry, Birsa Agricultural University, Ranchi (Jharkhand), IN
2 Department of Soil Science and Agricultural Chemistry, Birsa Agricultural University, Ranchi (Jharkhand), IN
3 Department of Soil Science and Agricultural Chemistry, Birsa Agricultural University, Ranchi (Jharkhand), IN
4 ICAR Indian Institute of Rice Research, Hyderabad (Telangana), IN

Abstract

Present experiments were conducted at the research farm of Indian Agricultural Research Institute, New Delhi during Kharif 1999 and Kharif 2001 to study the influence of nitrogenous fertilizer on the tilth of rice crop by remote sensing technique. Spectral radiance observations of the crop canopy were collected with the Portable Spectroradiometer which scanned from 330 nm to 1100 nm of electromagnetic spectrum range at 5nm interval (band-width). Normalized difference vegetation index was calculated for the both tillage practices, puddle and unpuddled situation at different growth stages for different fertilizer treatment. Fertilized plots were observed to have a higher value of BR than controlled ones throughout the crop growth period, both in puddled and unpuddled treatments. The higher values of band ratio were observed in puddled rice compared to the unpuddled rice irrespective of growth stages and fertilizer application levels. Statistical correlations were developed between NDVI (Normalized difference vegetation index) and RVI (Ratio vegetation index) with LAI (Leaf area index), DM (Dry matter) production and total leaf chlorophyll content. Second order polynomial equations were developed to correlate remotely sensed data with crop biometrics. Polynomial second order equations of 'band ratio' were found to be better fitted than NDVI with crop biometrics.

Keywords

NDVI, Puddle, Unpuddled, Rice, Fertilizer.

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Shashi Bhushan Kumar ¹, Madhukar Kumar ¹, Ashok Kumar ¹, A. K. Sinha ¹, B. Kumar ¹, N. C. Gupta ¹, Arvind Kumar ¹, D. K. Shahi ¹, B. Kagarwal ¹, Rakesh Kumar ¹, A. K. Dwivedi ¹, Y. K. Singh ¹, Nehatoppo ¹, Aniruddha Sarkar ¹

Affiliations
1 Department of Soil Science and Agricultural Chemistry, Birsa Agricultural University, Ranchi (Jharkhand), IN

Abstract

A registered product biozyme is extracted from a Norwegian Sea weed known as Ascophyllum nodosum. It is biodegradable and non-toxic for the plant and soil health as claimed by Biostadt company. Beside biozyme, several other zymes are also available in the market with some prefixes in the name. They claim, the zyme is toxin free, eco-friendly, bio degradable product containing growth hormones, elements, minerals and vitamins. Highly compatible with fertilizers and pesticides, it also increases the resistance of plants against various pests, diseases and climatic stress. These zymes are available in solid and liquid form and are being used as either top dressing or spraying on the crop canopy at important crop growth stages. As per some earlier studies, biozyme have claimed to have beneficial in crop growth both in vegetative part as well as in grain production. Keeping in view of its importance a field trial was formulated and being conducted in research farm of Bihar Agricultural University Bhagalpur (Bihar) to see the impact of Biozyme on the yield and soil microbes.

Keywords

Biozyme, Soil, Crop Biometrics,Yield, Economics.

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A. K. Dwivedi ¹, V. K. Patle ², O. P. Vyas ¹

Affiliations
1 School of Studies in Computer Science and I.T., Pandit Ravishankar Shukla University, Raipur (C.G.), 492010, IN
2 School of Studies in Computer Science and I.T, Pandit Ravishankar Shukla University, Raipur (C.G.), 492010, IN

Abstract

With emerging IPv6 based Standards such as ISA-100a and 6LowPAN/IEEE 802.15.4, IPv6 based sensor networks are the next era. As wireless sensor networks grow, we need implementation of IPv6 on it due to some advanced features available with IPv6 such as security mechanism. There are various challenges when implementing IPv6 on wireless sensor networks major one is interoperability with millions of deployed embedded IPv6 based devices for In-door and Out-door applications, both within the sensor networks itself and between the sensor modules and the Internet hosts. Through this contribution our objective is to explore the key features needed at network layer in WSN's protocol stack, security features of IPv6 should incorporated with next generation of WSNs, challenges faced with implementation or deployment of IPv6 on WSNs, presenting an overview of uIPv6 and recommending portability for all sensor node's operating systems and also highlighting the issues that affects security of WSNs.

Keywords

Wireless Sensor Netwoks (WSNs), IPv6, Protocols Stack, Denial of Service (DoS), uIPv6.

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A. K. Dwivedi ¹, V. K. Patle ¹, O. P. Vyas ²

Affiliations
1 School of Studies in Computer Science and I.T., Pandit Ravishankar Shukla University, Raipur (C.G.), IN
2 Indian Institute of Information Technology, Allahabad (IIIT-A), Deoghat, Jhalwa, Allahabad, U.P-211012, IN

Abstract

The expansion of the Internet, worldwide network of interconnected computer networks based on the TCP/IP standard communication protocol, was driven over last 30 years by the exchange of data between hosts such as server platforms and Personal Computers (PCs). Today, the Internet has become essential for enabling data information flow exchanges all over the world enabling in turn a wide range of applications and services. The aim of this contribution to explore the challenges currently faced by Internet community, trying to identify the ischolar_main of problem and finally presents the directions where Internet can move.

Keywords

Internet, Layered Architecture, Service Oriented Architecture, Future Internet, Clean Slate Approach.

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B. K. Banerji ¹, Atul Batra ¹, A. K. Dwivedi ¹

Affiliations
1 Floriculture Section, National Botanical Research Institute, Rana Pratap Marg, Lucknow-226001, IN

Abstract

Ten large flowered chrysanthemum cultivars, viz., 'Beat Rice May', 'Beauty', 'Casa Grande', 'Jet Snow', 'John Weber' , 'Miss Maud Jeffries', 'Penny Lane', 'Shanker Dayal', 'Snow Ball' and 'S.S. Arnold' from National Botanical Research Institute (NBRI), Lucknow, were evaluated for morphological and biochemical characterization. Morphological data were recorded on vegetative and floral characters. Biochemical characterization included analysis of anthocyanins, carotenoides, chlorophyll content (chlorophyll a, b and total) and flavonoids. Results on morphological and biochemical parameters clearly indicated distinctness among cultivars with reference to differences in morphological characters and chemical composition of pigments.

Keywords

Chrysanthemum, Morphology, Anthocyanin, Carotenoids, Flavonoids.

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Viveka Nand Singh ¹, B. K. Banerji ¹, A. K. Dwivedi ¹, A. K. Verma ¹

Affiliations
1 Floriculture Section, National Botanical Research Institute, Rana Pratap Marg, Lucknow-226 001, IN

Abstract

Seeds of African marigold cv. 'Pusa Narangi Gainda' were irradiated with 0, 100, 200, 300 and 400 Grays of gamma rays to induce mutation. Seeds were sown just after irradiation and 30-day old seedlings were transplanted into beds. Reduction in survival percentage, plant height, number of branches, leaf number, leaf size, plant-spread, stem diameter, increased foliage and floral abnormalities were observed upon irradiation and with increase in dose of gamma rays. LD50 was determined on survival basis. Leaf abnormality manifested itself as leathery texture of leaf, enhanced and irregular leaf thickness, asymmetric development of pinnate leaflets, reduction in pinnae number, chlorophyll variegation, pale and deep green leaves, narrow leaves and small leaves. Percentage of abnormal leaves and plants increased with increase in dose of gamma rays. Fasciation of stem was a common abnormality observed in all the treatments. Days to bud initiation, earliness in colour-appearance and days to full bloom were all significantly delayed upon exposure to gamma rays. Flower-head size, height and weight were highest at the lowest dose. Number of ray florets and size (length and width) decreased with increasing radiation dose. Floral abnormalities and % of plants with abnormal flower-heads increased with increasing dose of gamma irradiation. Floral abnormality included fasciation of flower-head and asymmetric development of ray florets. Stimulating effect of gamma irradiation was observed at 100 Grays where almost all the characters studied showed positive correlation, including growth and yield attributes. It is concluded that exposure to 100 Grays of gamma rays in African marigold cv. Pusa Narangi Gainda results in higher yield and marketable bloom.

Keywords

Tagetes erecta, African Marigold, Pusa Narangi Gainda, Gamma Irradiation Induced Mutation.

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Narendra K. Lenka ¹, S. P. Jaiswal ¹, J. K. Thakur ¹, S. Lenka ¹, A. Mandal ¹, A. K. Dwivedi ², B. L. Lakaria ¹, A. K. Biswas ¹, A. K. Shukla ¹, D. S. Yashona ¹

Affiliations
1 Indian Institute of Soil Science, Nabibagh, Bhopal 462 038, IN
2 Jawaharlal Nehru Krishi Viswa Vidyalaya, Jabalpur 482 004, IN

Abstract

Land degradation is one of the major causes of decline in soil productivity. However, the quantitative relationship between degradation and productivity is not fully understood in soils of India. Thus, an experiment was conducted under a range of native soil organic carbon (SOC) levels in two soil types (Inceptisol and Alfisol) of subtropical India. The SOC content under the treatments was 1.61%, 1.01% and 0.77% in Inceptisol and 0.36%, 0.25% and 0.21% in Alfisol under C₁ (undepleted soil), C₂ (low depletion) and C₃ (medium depletion) treatments respectively. Soybean was grown under each SOC level, with four management practices, viz. (1) control, (2) recommended dose of fertilizers (RDF) + 10 Mg farmyard manure (FYM) ha^-1, (3) 20 Mg FYM ha^-1 and (4) 150% RDF, in three replicates in a factorial completely randomized design. Results indicated significant and positive effect of both SOC and management treatment on plant biomass yield, labile (KMnO₄ oxidizable) carbon, soil microbial biomass carbon (SMBC), dehydrogenase activity, soil bulk density (BD) and penetration resistance (PR). The plant biomass reduced by 45% and 29% under C₃ (compared to C₁) in Inceptisol and Alfisol respectively. The effect of SOC depletion was conspicuous in Inceptisol. The labile C reduced by 47% and 16% under C₃ in Inceptisol and Alfisol respectively. SMBC showed a corresponding decrease of 33% and 29%. The soil physical properties, viz. BD and PR showed conspicuous effect of SOC depletion. PR increased by 324% and 75% for Inceptisol and Alfisol respectively.

Keywords

Labile Carbon, Soil Degradation and Productivity, Soil Microbial Biomass, Soil Physical Properties.

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A. K. Dwivedi ¹, Shashi ²

Affiliations
1 Pollution and Environmental Assay Research Laboratory (PEARL), Department of Botany, DDU Gorakhpur University, Gorakhpur - 273009, IN
2 Department of Chemistry, Udal Pratap Autonomous PG College, Varanasi - 221002, IN

Abstract

Reports are available that insplte of the best efforts, most of the scholars of science fail to quality the National Eligibility Test (NET). Th6 present paper Is supposed to be very much helpful for such students, because, one of the authors has qualified the test twice and he has shared his experiences and has also tried to explain the hurdles In the path and also the process to overcome It.

Keywords

No Keywords.

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