Āsika, India
Āsika, India

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Dash N.,Aska Science College | Adhikary S.P.,Aska Science College
Ecology, Environment and Conservation | Year: 2013

In this study, the effects of different concentrations of aqueous phyllode-leachate (2, 4, 6, 8 andlO %) of Acacia auriculaeformis on antioxidant enzymes in first leaves of ragi were investigated. Ragi seedlings were incubated in petridishes containing different concentrations of aqueous phyllode-leachate of the test tree. The leaf tissues were collected at an interval of three days i.e. from 6 days after soaking (DAS) to 15 DAS. The results showed that the leaf peroxidase and superoxide dismutase activities were increased and decreased catalase activity in leaves of ragi seedlings exposure to aqueous phyllode leachate of Acacia auriculaeformis in compared with control.Increase or decrease of enzymatic activities with phyllode-leachate of Acacia auriculaeformis due to presence of allelochemicals in the leachate. The oxidative stress produced by aqueous phyllode leachate of Acacia auriculaeformis through the activities of POD, SOD and CAT might have increased the rate of production of reactive oxygen species (ROS) which is responsible for membrane peroxidation ultimately damage the cell and increased level of scavenging enzymes indicates their stimulation as a secondary defense mechanism. Copyright © EM International.

Dash N.,Aska Science College | Rath I.,C.E.B K.G.I C.N.I. Complex | Adhikary S.P.,Aska Science College | Padhy S.K.,Mother Marys College | Panda S.,Berhampur University
Asian Journal of Microbiology, Biotechnology and Environmental Sciences | Year: 2012

Allelochemicals are the secondly metabolites of one plant that influence the growth and development of neighbouring plants and microbes. Generally these allelochemicals are phenolics, organic acids, steroids, alkaloids etc. which enter into the environment by various means such as leaching, volatilization, root exudation etc. Acacia auriculaeformis A. Cunn a member of family Mimoceae are generally planted in and around the crop fields whose phyllodes directly and /or indirectly control the growth and development of crops. Laboratory experiments were carried out to find out the impact of aqueous leachate of Acacia auriculaeformis phyllode on structure and function of chloroplasts of two rice cultivars (Pratikhya and Khandagiri) during their seedling growth. It was noticed that all concentrations of aqueous leachate of phyllodes (2,4,6,8 and 10%) drastically checked the synthesis of chlorophyll pigments (a,b and total), carotenoids and protein in chloroplasts and structural disorganization of photosynthetic assembly as evidenced from absorption characteristics of the organelle. The detrimental effect of allelochemicals has been attributed to their ability to form reactive oxygen species (ROS) which are well known for causing degradation of different biomacromolecules. © Global Science Publications.

Air being an important and vital component of earth's environment, a slight modification of its composition by pollutant load can have caused effects on the growth, development and survival of different organisms in this planet. Urbanization is inevitable as it is directly linked with the process of industrialization and economic development. Air pollution has become a growing problem in mega cities and large urban areas throughout the globe and transportation is recognized as the major source of air pollution in many cities. Vehicular emissions have drastic impact on living and nonliving components of the ecosystem. The growth of motor vehicle population in any city determines the contribution of auto emissions to the overall air pollution in that city. In busy work schedule of people there is no time in their way of life to purchase vegetable and fruits from vending zones. According to need of people vegetable and fruits are sold in the streets, bus stops and city complexes where the auto mobile emissions are more and they become contaminated by deposition of heavy metal on their surfaces. People have been suffering from abdominal disease by consuming these vegetables and fruits. The present study has been planned to study the levels of heavy metal deposition on the fruits and vegetable sold along the road sides of Berhampur streets, bus stops and city complexes. Mostly Pb, Cd, Cu, Zn and Fe are the heavy metal deposited on the vegetable and fruits. The values found exceed the permissible limit of WHO. Hence, awareness should be created among the people and vegetable and fruits seller to avoid road side sell and use proper vending zone marked by municipality. Copyright © EM International.

Shadangi K.C.,Aska Science College | Rout G.C.,F M University
AIP Conference Proceedings | Year: 2011

We report here a model study of ultrasonic attenuation in Heavy Fermions Systems in its normal state. The system is described by the Kondo lattice model for the exchange interaction between spins of the conduction and localized f-electrons, besides the Heisenberg interaction among the spins of the localized electrons. The magnetization and the antiferromagnetic spin fluctuations are calculated by Green's function method and are solved self-consistently. In order to study an ultrasonic absorption in this system, we consider the phonon interactions with the conduction electrons as well as with the magnetization. The ultrasonic attenuation coefficient is calculated from the self energy of the phonon Green function. The temperature dependent and the phonon self-energy dependent attenuation coefficient are calculated numerically. It is observed that the normal electron-phonon has no effect on attenuation but the phonon coupling with the magnetization enhances the attenuation. Further, the phonon energy dependence of attenuation exhibits a magnetic peak corresponding to the magnetic energy besides a phonon momentum transfer energy at very low energies. © 2012 American Institute of Physics.

Adhikary S.P.,Aska Science College
Ecology, Environment and Conservation | Year: 2013

Indian dwell in villages for their agricultural activities. Fanners are the economic backbone of our nation. In early days farmers were using locally available natural materials like after harvest trashes, weeds, cow dung, etc. as manure. The art of composting has been part of our global culture since ancient times. The basic principles are quite simple and adhering to them will result in an efficient and successful outcome. Later on they started using chemical fertilizers in view of fast growth and good yield. Though they got good results in early days, after continuous use agricultural land becomes barren, crops becomes less resistant to environmental conditions. To dispose the agriculture waste, they started burning of and digest anaerobically in the land itself, which leads to air pollution, release of obnoxious and greenhouse gases. Use of chemical fertilizer is not only expensive but also they go on accumulating in soil crops, undergoes bio-magnification which leads to health hazards, instead they could use indigenous technology of vermicomposting. This does not call for expensive laboratories or sophisticated industrial instruments. It has multiple benefits and can convert wastes into fertilizers, make soil healthy, can eliminate the dependence on chemicals and can bring waste land under cultivation. In view of this a study was conducted on agriculture waste management through vermicomposting. Representative samples were collected from agricultural farm and allowed to decompose for about 21 days and then transferred to vermipits. Chemical analysis of samples show significant decrease in carbon content and final compost has maximum N.P.K. Present study gives bio-remedial recycling technology for agricultural waste which needs a part of agricultural input. Conservers the environment, create employment to millions of youth, can feed hungry citizens and can make country green and prosperous in a span of just a few years. © EM International.

There is a cooperative sugar mill and distillery commissioned four decades ago, at Aska, in the vicinity of a College. The industry uses raw sugarcane and is generating huge quantity of effluents which is main polluting source to land surface water. Agro-industrial waste or any cellulose based industries unutilised organic matter and cause environmental problems like dispersing foul odour, occupying vast areas, ground and surface water pollution etc. Effluent originating from sugar industry is a rich source of organic matter and nutrients like nitrogen, phosphorous, potassium, calcium, magnesium, bicarbonate and sulphur. In addition, it contain sufficient amount of micronutrients. Basing on above view, a study was conducted to known the quality of effluent generated from sugar industry and influence of its different dilution on Brinjal plant Brinjal plant (Solanum melongena L.) is a important vegetable of the people, which contains important alkaloids, minerals, vitamins and other nutrients. A pot culture experiment was conducted in botanical garden of Aska Science College campus to study the influence of different dilution of effluent on the growth and biochemical parameters of the Brinjal plant. The results showed that, the vegetative growth viz. shoot length, root length, shoot weight and root weight of plants were highest in 20 mL/kg soil crude effluent treatment compared with control and followed by 30 ml/ kg, 10 mL/kg and 40 mL/kg of soil treatment. The similar trends of results were also noticed in chlorophyll, carbohydrate and protein contents of 30 days old Brinjal plant. The pot experimental studies suggest the possibility to using judicious application of crude effluent will improve crop productivity and alleviate environmental pollution problems. Awareness should be created among the farmers to economise crude sugar industry effluent through dilution in proportionate manner and improve the crop system. Copyright © EM International.

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