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
Naveen Kumar, P.
- Granulovirus of Semilooper, Achaea janata L. (Lepidoptera: Noctuidae): Its Bioefficacy and Safety in Mammalian Toxicity Tests
Authors
1 Central Research Institute for Dryland Agriculture, Santoshnagar, Hyderabad, 500 059, Andhra Pradesh, IN
Source
Journal of Biological Control, Vol 27, No 2 (2013), Pagination: 99–104Abstract
Bio-efficacy of granulovirus (GV) infecting the semilooper, Achaea janata L., a serious defoliating pest of castor bean, Ricinus communis L., was established through leaf disc bioassays. Ovoid occlusion bodies (OB) of A. janata GV (AjGV) measuring 480±20.9 by 240±13.7 nm contained a singly embedded nucleocapsid. Estimated molecular weight of viral genomic DNA obtained with three restriction enzymes was in the range of 124 and 127 kb with a mean of 125.7±0.9 kb. Estimated median lethal concentration (LC50) of AjGV mother culture to second instar larvae was 2.2±0.21×106 OB/ml or 85.4±9.7 OB/mm2 leaf, while for the formulation it was 3.1±0.89×106 OB/ml or 123.3±35.1 OB/mm2 leaf. Kaplan-Meier survival estimate of median lethal time (LT50) for second instars was 7 days at 5×108 OB/ml concentration and 12 days at 5×106 OB/ml. AjGV mother culture and formulation were found to be non-toxic in all the mandatory mammalian toxicity tests. This study fulfills the key data requirements on identification of the AjGV Hyderabad isolate, its bio-efficacy and safety in mammalian toxicity tests.Keywords
Granulovirus, Baculovirus, Bioassay, Achaea janata, Ricinus communis.References
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- A Comparative Analysis of Energy Efficient SP-LEACH and Classical LEACH Protocols of WSNs
Authors
1 Department of Electronics and Communication Engineering, Bahubali College of Engineering, Shravanabelegola, IN
2 Department of Electronics and Communication Engineering. Bahubali College of Engineering, Shravanabelegola, IN
Source
Networking and Communication Engineering, Vol 7, No 5 (2015), Pagination: 242-246Abstract
Wireless Sensor Networks (WSNs) are the networks of sensing devices called nodes, which are connected without any sought of wires. For the sake of communicating the information from nodes to the Base Station (BS), node should posses a communication unit, it is very necessary for a power supply unit to drive the communication unit. The protruding issue in any WSN is with the power consumption and Energy constraints. Senor node consumes a huge amount of power for the transmission of sensed real time information. For certain applications like in remote areas or in military applications, replacement or recharging of batteries at sensor nodes will be very challenging, where human intervention is difficult. In order to find a better solution for this problem we worked on the existing cluster based routing protocol- LEACH and designed a novel algorithm called Specialized Power (SP-LEACH), which can minimize the overall power consumption for communication in the network confirming uniform load amongst nodes which results in getting an improved energy efficient network. In turn it also enhances the life time for WSNs. Newly developed protocol, SP-LEACH is been subjected to a detailed comparison with the existing LEACH protocol and those systematic comparisons and the results obtained are clearly explained in this paper.