Informatics Publishing Limited

M. C. Prajapati , Surender Singh

Abstract

The Nilgai (Boselaphus tragocamelus) is condemned as a vermin. There is a need to develop a "live and let-live" technology to end the "Farmer-Nilgai-tussle'. Studies in Research Farm, chhalesar indicate that Nileai is "not-all-worthless". Situated in ravines along river Yamuna the Research Farm (81.6 ha) with all essentials for life viz. 65% forests and 35% agriculture, horticulture, water-holes, etc. makes a safe haven for Nilgai. There exist about 100 head using forests for shelter and resting in day time, agricultural fields for foraging in night time and the river for watering. Nilgai's summer droppings containing 5-10 seeds each are a good source of Acacia nilotica and Prosopis juliflora seeds. The droppings also contain 1.568% nitrogen enriching the soil profile upto 30 cm depth by above 30kg N ha^-1 and 0.02% organic carbon. About 100 kg summer droppings, numbering, as much as 40,000, contain sufficient seeds to afforest 6 ha area. For raising forest of A. nilotica dropping of May and for that of P. juliflora the same of June should be used. The naturally, timely and effortlessly available Nilgai droppings are ideally and evenly sized nitrified organic capsules with appropriate number of treated seeds ready to vigourously and prolifically germinate with first showers. Easy to handle, simple to use and quick to work-with the cheaply available Nilgai droppings are a boon to boom afforestation.

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V. Sharma ¹, Surender Singh ¹

Affiliations
1 Department of Geology, University of Delhi, Delhi-110007, IN

Abstract

A study of the radiolarian assemblage from the Sawai Bay Formation (Early Pliocene) exposed in Car Nicobar bland shows the presence of age diagnostic radiolarian taxa. Based on the radiolarian zonation applicable for the tropical Indian Ocean, three radiolarian zones are identified in this formation. These, in ascending order, are: Phormostichoartus doliolum zone, P. fistula zone and Stichocorys peregrina Zone. The radiolarian events (first and last appearances) recognised in the Car Nicobar sequences are discussed in relation to those in the Central Indian Ocean Basin. The proposed radiolarian zones are correlated with the previously proposed planktonic foraminiferal zone in the study area, and an htegrated biostratigraphic scheme is presented.

Keywords

Car Nicobar, Pliocene, Radiolarian Zonation, Micropaleontology, Northeast Indian Ocean.

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Hsin Yi Ling ¹, V. Sharma ², Surender Singh ², D. Mazumdar ², A. K. Mahapatra ²

Affiliations
1 Department of Geology, Northern Illinois University, DeKalb, Illinois 601 15, US
2 Department of Geology, University of Delhi, Delhi-110 007, IN

Abstract

Radiolarians from seven samples of ejected sediments of mud volcanoes of Baratang Island in the Andaman Sea provide additional evidence for the presence of Cretaceousand MiddIe Eocene strata beneath the island. A general NNE-SSW alignment of the mud volcanoes suggests the structural control for their occurrence due to regional tectonics.

Keywords

Radiolaria, Mud Volcanoes, Cretaceous, Eocene, Andaman Sea, Indian Ocean

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S. K. Srivastava ¹, Surender Singh ¹

Affiliations
1 Botanical Survey of India, Northern Circle, Dehradun - 248 195, IN

Abstract

No Abstract.

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P. Varma Kishore ¹, S. K. Gandhi ², Surender Singh ²

Affiliations
1 Agricultural Research station, Tandur- 501141, Ranga Reddy (Dt), Andhra Pradesh, IN
2 CCS Haryana Agricultural University, Hisar- 125004, Haryana, IN

Abstract

Plant extracts and saprophytic fungi isolated from tomato phylloplane were evaluated against Alternaria solani, the causal agent of early blight of tomato, under screen house and field conditions. Foliar spray of Clerodendron leaf extract (15%) immediately after appearance of symptoms or foliar spray of Trichoderma viride (10⁷ CFUs ml⁻¹) 24h before challenge inoculation with the test fungus was found effective In reducing the disease severity under screen house conditions. Under field studies, effective control of the disease was recorded with three sprays of mancozeb (2000ppm). However, disease severity could be significantly reduced with initial spray of Clerodendron leaf extract (15%) or T. viride (107 CFUs ml⁻¹) followed by two sprays of mancozeb.

Keywords

Alternaria solani, Antagonist, Clerodendron, Plant Extract, Trichoderma viride.

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Ravinder Kumar ¹, Somvir ¹, Surender Singh ¹, Kulwant ²

Affiliations
1 Department of Secondary Education, Haryana, IN
2 GJUS&T, Hisar, Haryana, IN

Abstract

Nanotechnology is playing an increasingly important role in the development of biosensors. The sensitivity and performance of biosensors is being improved by using nanomaterials for their construction. The use of these nanomaterials has allowed the introduction of many new signal transduction technologies in biosensors. Because of their submicron dimensions, nanosensors,nanoprobes and other nano systems have allowed simple and rapid analyses in vivo. Portable instruments capable of analyzing multiple components are becoming available. This work reviews the status of the various nanostructure-based biosensors. Use of the self-assembly techniques and nano-electromechanical systems (NEMS) in biosensors is discussed.

Keywords

Biosensors, Nanotechnology, Nanomaterials, Nanostructure, Nano-Electromechanical Systems (NEMS), Self-Assembly.

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