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    Wyświetlanie 1-4 z 4
    Tytuł:
    Chromium toxicity in Sesbania sesban (L.) Merr
    Autorzy:
    Bakiyaraj, R.
    Mahakavi, T.
    Baskaran, L.
    Powiązania:
    https://bibliotekanauki.pl/articles/10775.pdf
    Data publikacji:
    2014
    Wydawca:
    Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
    Tematy:
    chromium
    toxicity
    Sesbania grandiflora
    pot experiment
    toxic effect
    plant
    germination
    chlorophyll
    enzyme
    metal accumulation
    seedling
    shoot
    Opis:
    Chromium is one of the most common toxic metals present in the environment that induces various toxic effects in plants. A pot experiment was conducted to determine the effects of chromium on germination percentage, seedling growth, chlorophyll ‘a’, ‘b’ and proline content of Sesbania sesban (L.) Merr. The seedlings were treated with different concentrations of control, 0.10, 0.25, 0.50, 0.75 and 1.00 g kg-1 of chromium. The parameters such as germination percentage, root and shoot length, seedling fresh weight dry weight, chlorophyll ‘a’, ‘b’ and proline content of leaves were measured. Our results indicated that a significant inhibitory effect was observed at all levels of chromium compared to control. Increasing the concentration of chromium to 1.00 g kg-1 showed a significant decrease in seed germination, shoot and root length, fresh weight, dry weight and chlorophyll ‘a’ and ‘b’ content of plant. While proline, catalase and peroxidase contents were increased by increasing Cr concentration. It was also noted that accumulation of chromium in the roots was much higher than the shoots of the seedlings under treatment.
    Źródło:
    International Letters of Natural Sciences; 2014, 04
    2300-9675
    Pojawia się w:
    International Letters of Natural Sciences
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Isolation and identification of bacteria from Chlorpyrifos polluted soil
    Autorzy:
    Santhoshkumar, M.
    Mahakavi, T.
    Baskaran, L.
    Powiązania:
    https://bibliotekanauki.pl/articles/11406.pdf
    Data publikacji:
    2015
    Wydawca:
    Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
    Opis:
    The present study aimed to isolate and identify the chlorpyrifos resistant soil bacteria from contaminated soils in order to be used for bioremediation of polluted environments. Bacteria were isolated from two cultivated plant root rhizopheric soil of Cocks comb (Celosia cristata) and Marigold (Tagetes erecta).The pesticide was tested at 5 elevated doses,0.5%, 1%, 2%, 2.5% and control. Physiochemical properties of soils, PH, Electrical conductivity, Organic carbon, Organic matter, Nitrogen, phosphorus, potassium, Manganese and Iron were analyzed. Based on morphological and biochemical tests the isolates were identified as Bacillus subtilis, Pseudomonas putida, Pseudomonas aeruginosa. Thus, the organisms can be exploited for bioremediation of chlorpyrifos polluted soil, and their ability to degrade other organophosphates pesticide.
    Źródło:
    International Letters of Natural Sciences; 2015, 45
    2300-9675
    Pojawia się w:
    International Letters of Natural Sciences
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Phytoremediation of quizlofop-ethyl contaminated soil using Sesbania sesabn L.
    Autorzy:
    Mahakavi, T.
    Baskaran, L.
    Bakiyaraj, R.
    Mycin, R.
    Powiązania:
    https://bibliotekanauki.pl/articles/11582.pdf
    Data publikacji:
    2015
    Wydawca:
    Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
    Opis:
    In this field experiments, sandy loam soil was treated with different concentration of herbicide (Quizalofop-ethyl) 0.5, 1.0, 1.5 and 2 per cent. Sesbania sesban L. seeds were sown in all treated soil. The germination percentage, morphological and enzymes activities were measured after 20, 40 and 120 days. The results indicate that the germination per cent, morphological parameters were increased in control then it was gradually decreased with increasing the herbicide concentration. The enzymes like catalase and peroxidase activity were increased in control then it was decreased with increasing the concentration. Whereas the polyphenoloxidase acticity was lower in control and it was increased with increasing the herbicides concentration. Hence, after 120 days plants were harvested and the plant powder was analyzed for absorption of herbicide by plant with the help of Gas chromatography mass spectrum (GCMS). The obtained data showed that herbicide absorption was concerned in quiazalofop-ethyl treated plant when compared to control. This study expose that herbicide reduced by Sesbania sesban L.
    Źródło:
    International Letters of Natural Sciences; 2015, 44
    2300-9675
    Pojawia się w:
    International Letters of Natural Sciences
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Effect of herbicide (Quizalofop-p-ethyl) on growth, photosynthetic pigments, enzymes and yield responses of blackgram (Vigna mungo L.)
    Autorzy:
    Mahakavi, T.
    Bakiyaraj, R.
    Baskaran, L.
    Rashid, N.
    Ganesh, K.S.
    Powiązania:
    https://bibliotekanauki.pl/articles/10896.pdf
    Data publikacji:
    2014
    Wydawca:
    Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
    Tematy:
    herbicide effect
    quizalofop-p-ethyl
    plant growth
    photosynthetic pigment
    pigment
    catalase
    peroxidase
    enzyme
    yield response
    black gram
    black lentil zob.black gram
    Vigna mungo
    Opis:
    The recent experiment was conducted to assess the effect of herbicide (quizalafop-p-ethyl) on growth, photosynthetic pigments, enzymes and yield of Black gram (Vigna mungo L.) during the summer season 2013-2014. This experiment comprised black gram (variety ADT 3) and different concentrations of herbicide (quizalafop-p-ethyl) treatments compared with control. Reduction in growth, photosynthetic pigments, enzymes and yield parameters were observed with 0.5 % herbicide application followed by 1 %, 1.5 % and 2 %, out of all treatments 0.5 % shows least reduction. Thus, 0.5 % herbicide application is the safest way for weed control in Black gram field as it showed least adverse effect on growth, photosynthetic pigments, enzymes and yield of crop when compared with other treatments.
    Źródło:
    International Letters of Natural Sciences; 2014, 04
    2300-9675
    Pojawia się w:
    International Letters of Natural Sciences
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-4 z 4

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