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Wyszukujesz frazę "Elayaraj, B." wg kryterium: Autor

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    Wyświetlanie 1-8 z 8
    Tytuł:
    Study of physico-chemical parameters and phytoplankton diversity of Ousteri lake in Puducherry
    Autorzy:
    Dhanam, S.
    Sathya, A.
    Elayaraj, B.
    Powiązania:
    https://bibliotekanauki.pl/articles/1191240.pdf
    Data publikacji:
    2016
    Wydawca:
    Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
    Tematy:
    Ousteri lake
    Physico-chemical analysis
    Phytoplankton
    Opis:
    The present study was carried out in the Ousteri lake (Puducherry State) from October 2013 to September 2014. The samples were collected during morning hours and were analysed monthly for physical, chemical and biological parameters. The various physico-chemical parameters like Water temperature, pH, Free CO2, Dissolved Oxygen, Turbidity, Electrical conductivity, Total dissolved solids, Total alkalinity, Chloride, Phosphate, Nitrate, Biological oxygen demand and Chemical oxygen demand were analyzed. Results have shown an increased concentration in physico-chemical parameters is more in summer compared to other seasons. The plankton studies were noticed that a total of 34 species belonging to 26 genus under the 4 classes. Among these, Cyanophyceae comprised of 15 species (belonging to 11 genera) followed by Chlorophyceae 9 species (belonging to 7 genera), Bacillariophyceae 7 species (belonging to 6 genera) and Euglenophyceae 3 species (belonging to 2 genera) were recorded. During the study it was found that Cyanophyceae algal growth is dominated over Chlorophyceae, Bacillariophyceae and Euglenophyceae.
    Źródło:
    World Scientific News; 2016, 54; 153-164
    2392-2192
    Pojawia się w:
    World Scientific News
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Distribution and composition of aquatic macrophytes in Santhapettai Lake of Villupuram district in Tamil Nadu
    Autorzy:
    Dhanam, S.
    Elayaraj, B.
    Powiązania:
    https://bibliotekanauki.pl/articles/11801.pdf
    Data publikacji:
    2015
    Wydawca:
    Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
    Opis:
    Macrophytes are important component of the aquatic ecosystem and broad changes in the abundance of individual species and community composition provide valuable information on how and why an ecosystem might be changing. Santhapettai lake is one of the biggest fresh water lake in Villupuram district, Tamil Nadu. The physico-chemical parameters were analysed for one year (October 2012-September 2013). Quadrates were laid randomly and extending from shoreline towards the lake center. The macrophytes falling in each quadrate were sorted species wise, identified and data were recorded. The plants have been identified from fresh materials with the help of different floras. In this present investigation, a total of 33 species belonging to 23 families and 28 genera were identified under algae, pteridophytes, dicotyledons and monocotyledons. Further, the plants were classified in morphological group as floating (7), submerged (1), submerged anchored (13), floating leaved (1) and emergent anchored (11). The coverage/spread of macrophytes along the shorelines was higher compared to the centre of the lakes where the species composition was found reduced. Assessment of biota, continuous monitoring and conservation lake are the important components to safeguard the biological wealth of lentic and lotic freshwater ecosystem.
    Źródło:
    International Letters of Natural Sciences; 2015, 47
    2300-9675
    Pojawia się w:
    International Letters of Natural Sciences
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Dynamics of micro algae in relation to water quality parameters of pasupatheswarar temple pond, Annamalai Nagar, Tamil Nadu
    Autorzy:
    Elayaraj, B.
    Selvaraju, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/11825.pdf
    Data publikacji:
    2015
    Wydawca:
    Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
    Opis:
    The current study deals with water quality variations and micro algal community structure in the highly eutrophic pond. Several water quality parameters were evaluated during the period from July 2014 to June 2015 from sampling station sited from Annamalai Nagar viz., Pasupatheswarar temple pond. The water quality parameters like Air and water temperature, turbidity, electrical conductivity, total dissolved solids, total alkalinity, pH, free carbon-dioxide, dissolved oxygen, biological oxygen demand (BOD), chemical oxygen demand (COD), calcium, magnesium, phosphate and nitrate were analysed. A total 29 species were observed during the study period of which 11 species from the class Cynophyceae, 9 species from the class Chlorophyceae, 6 species from the class Bacillariophyceae and 3 species from the class Euglenophyceae. Maximum species of the class Cyanophyceae were observed during study period. The Microcystis aeruginosa species observed in the pond indicates the signs of eutrophication of pond. The water quality parameters such as temperature, alkalinity, phosphate and nitrates are favourable for the growth of phytoplankton.
    Źródło:
    International Letters of Natural Sciences; 2015, 46
    2300-9675
    Pojawia się w:
    International Letters of Natural Sciences
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Occurrence of microcystis aeruginosa Kutz. water blooms in a eutrophic pond of chidambaram taluk
    Autorzy:
    Elayaraj, B.
    Selvaraju, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/10916.pdf
    Data publikacji:
    2015
    Wydawca:
    Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
    Opis:
    The occurrence and abundance of Microcystis aeruginosa were monitored monthly in eutrophic pond water of Ilamiyakkinar temple pond from July 2014 to June 2015. Some environmental factors such as water temperature, pH, free carbon-dioxide (FCO2), total alkalinity, Dissolved oxygen (DO2), biological oxygen demand (BOD), nitrate (NO2-N) and phosphate are recorded and their relationship with the bloom formation by Microcystis aeruginosa were discussed. The initiation and persistence of Microcystis aeruginosa were founded to be triggered by relatively high water temperature (24 °C to 36.5 °C), pH (7.3 to 8.72) and NO2-N concentration.
    Źródło:
    International Letters of Natural Sciences; 2015, 47
    2300-9675
    Pojawia się w:
    International Letters of Natural Sciences
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Ethnomedicinal aspects of some weeds from paddy fields of Villupuram district in Tamil Nadu, India
    Autorzy:
    Dhanam, S.
    Elayaraj, B.
    Powiązania:
    https://bibliotekanauki.pl/articles/11111.pdf
    Data publikacji:
    2014
    Wydawca:
    Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
    Tematy:
    ethnomedicine
    weed
    paddy field
    plant species
    medicinal plant
    Villupuram district
    Tamil Nadu
    India
    Opis:
    The present investigation has been carried out to enumerate the ethnomedicinal plant growing in the paddy field of Villupuram district, Tamil Nadu. Ten selected sites in the Villupuram district was taken for investigation. Random quadrate method was adapted for studying the phytosociological attributes of the weeds. A total of 145 plant species belonging to 22 families were identified, out of which 39 plant species are medicinally important to cure different diseases in human beings directly. Amaranthaceae and Euphorbiaceae was the dominant family seen during observation. Frequency, Relative frequency, Density, Relative density, Abundance, Relative abundance and Important Value Index (IVI) of the species were calculated.
    Źródło:
    International Letters of Natural Sciences; 2014, 14
    2300-9675
    Pojawia się w:
    International Letters of Natural Sciences
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Ethnoveterinary practices in Villupuram district, Tamil Nadu, India
    Autorzy:
    Dhanam, S.
    Elayaraj, B.
    Powiązania:
    https://bibliotekanauki.pl/articles/11412.pdf
    Data publikacji:
    2014
    Wydawca:
    Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
    Tematy:
    ethnoveterinary practice
    traditional knowledge
    Ayurvedic medicine
    traditional medicine
    treatment
    medicinal plant
    human disease
    Villupuram district
    Tamil Nadu
    India
    Opis:
    Ayurvedic medicines are considered to be the best systems of treatment in India and this system is spreading now globally. Natural products are also a part of our everyday life. Ethno veterinary medicine is developed by farmers in field and barns rather than and in scientific laboratories. It is less systematic, less formalized and usually transferred by word of mouth rather than writing. An ethnobotanical survey was conducted in 10 selected sites of Villupuram district. Twenty six plant species belonging to fourteen families were documented in the present study, to cure different diseases in animals. Interviews and detailed personal discussions were conducted with the traditional healers and local people to identify the plants and their medicinal information for six months. The study revealed that the different parts of these plants were used for treatment of different diseases. Leaves are the mostly used part to prepare medicine.
    Źródło:
    International Letters of Natural Sciences; 2014, 19
    2300-9675
    Pojawia się w:
    International Letters of Natural Sciences
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Physico-chemical analysis of sugar factory effluent stress on seedling growth of black gram (Vigna mungo (L.) Hepper) varieties
    Autorzy:
    Elayaraj, B.
    Powiązania:
    https://bibliotekanauki.pl/articles/11401.pdf
    Data publikacji:
    2014
    Wydawca:
    Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
    Tematy:
    physicochemical analysis
    sugar factory
    effluent
    plant stress
    seedling
    plant growth
    black gram
    seed
    Vigna mungo
    germination percentage
    Opis:
    The physico-chemical parameters of the content in the effluents from Rajasree sugar factory of Villupuram district have been explored and its impact on the germination and growth patterns of black gram varieties has been studied. Physico-chemical parameters included color, odour, pH, temperature, electrical conductivity, suspended solids, dissolved solids, BOD, COD, chloride, sulphate, calcium, oil and grease concentration. Germination studies was conducted with black gram seed varieties (ADT-3, ADT-5, Vamban-3, Vamban-5 and Co-6) treated with different concentrations (control, 5, 10, 25, 50, 75 and 100 % ) of sugar mill effluent. Germination studies parameters such as germination percentage, germination index, shoot length, root length, fresh and dry weight of seedlings were found to be increased up to 10 % concentration of effluent. Vigour index, tolerance index, percentage of phytotoxicity and germination index were also calculated. The above mentioned parameters were decreased with the increase of effluent concentrations (25-100 %).
    Źródło:
    International Letters of Natural Sciences; 2014, 12, 1
    2300-9675
    Pojawia się w:
    International Letters of Natural Sciences
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Studies on some physico-chemical parameters of cyanophycean members and correlation coefficient of eutrophic ponds in Chidambaram, Tamil Nadu, India
    Autorzy:
    Elayaraj, B.
    Selvaraju, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/10938.pdf
    Data publikacji:
    2014
    Wydawca:
    Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
    Tematy:
    physicochemical parameter
    phytoplankton
    correlation coefficient
    eutrophic pond
    pond
    Chidambaram town
    Tamil Nadu
    India
    Opis:
    The present study deals with the statistical analysis of physico-chemical parameters and cyanophycean members of two pond water quality of Chidambaram, Cuddalore district (Tamil Nadu). The qualities of pond water were analyzed for six months. Eleven important parameters were included in statistical analysis. The qualities of pond water have been assessed by calculating mean, standard deviation and correlation coefficient. Correlation studies of hydrobiology with physico-chemical parameters revealed that the relationship between phytoplankton density in general and that of the specific groups are highly complex and often controlled by interactions of different factors. In the both pond water the correlation coefficient test revealed that cyanophycean members positively correlated with temperature, pH, CO2, alkalinity, hardness, nitrate, BOD and COD at 1 % and 5 % level significant, where as it is negatively correlated with acidity and dissolved oxygen. In the present study it can be concluded that the cyanophycean members are highly tolerant organisms. They prefer to grow at higher temperatures and in highly alkaline, BOD and COD waters. Hence they can with stand high levels of contaminated waters of Thillai Kali Kovil pond, when compared to Ilamiyakkinar Kovil pond.
    Źródło:
    International Letters of Natural Sciences; 2014, 11, 2
    2300-9675
    Pojawia się w:
    International Letters of Natural Sciences
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-8 z 8

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