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1

Impact of organic manure and inorganic fertilizers on seed germination of green gram (Vigna radiata L.)

100%
Vaithiyanathan T., Sundaramoorthy P.
World Scientific News
|
2016
|
tom 35
2
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Various biochemical changes of African marigold seedlings under sugar mill effluent stress

100%
Vaithiyanathan T., Sundaramoorthy P.
International Letters of Natural Sciences
|
2016
|
tom 50
Sugar mill is one of the agro based industry and great significant in rural economy of developing countries. It creates environmental pollution by produced waste during sugar production. In the present work deals with the analysis of various change of biochemical in African marigold (Tagetes erecta L.) at 15 DAS under the different concentrations (control, 10, 25, 50, 75 and 100%) of sugar mill effluent. Results of this study determined that the lower concentration (10%) of sugar mill effluent increased photosynthetic pigment and biochemical contents of African marigold and it decreased at higher concentrations of the sugar mill effluent. The lower concentrations of sugar mill effluent used for irrigation.
3
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Influence of chromium treatment on growth and nutrient accumulation of paddy (Oryza sativa L.) seedlings

100%
Sundaramoorthy P., Sankar Genesh K.
International Letters of Natural Sciences
|
2015
|
tom 04
The aim of this research is to study accumulation of Chromium along with nutrients and its effect on the growth of Paddy plant (Oryza sativa L). Thus, paddy seedlings grown in petriplates lined with filter paper undergoing, different treatments of Cr (0, 2.5, 5, 10, 25, 50, 75, 100 and 200 mg/L). After one week seedlings were removed and morphological parameters like root length, shoot length and dry weight of plants and accumulation of nutrients along with Cr content were determined. The results indicated that the concentrations more than 100 mg/L chromium cause the reduction of morphological parameters in the treatment plants rather than control plant and Cr addition in the cultures caused enhancement of chromium content paddy seedlings. Similarly nutrient accumulation also affected by increasing concentrations of chromium.
4

Physico-chemical properties of Sri Sanishwaran temple pond water, Tirunallar

81%
Sankar Ganesh K., Xavier R. L., Nagarajan M., Sundaramoorthy P.
World Scientific News
|
2015
|
tom 21
5
Artykuł dostępny w postaci pełnego tekstu - kliknij by otworzyć plik
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Response of fenu-greek (Trigonella foenum-graecum L.) to Rhizobium inoculation

81%
Soundari M., Vaithiyanathan T., Sundaramoorthy P.
International Letters of Natural Sciences
|
2015
|
tom 06
Green revolution increased the food production enormously to feed the geometrically growing population. In India, the availability and affordability of fossil fuel based chemical fertilizers at the farm level have been ensured only through imports and subsidies. Dependence on chemical fertilizers for future agricultural growth would mean further loss in soil quality. The possibilities of water contamination and unsustainable burden of the fiscal system. The Government of India has been trying to promote an improved practice involving use of biofertilizers along with fertilizers. These inputs have multiple beneficial impacts on the soil and can be relatively cheap and convenient for use. The agricultural chemicals like pesticide and weedicides were being used to save the standing crop from the attack of pests and to boost crop production. At the same time the excess use of chemical fertilizers degraded the soil properties. In this context, the farmers are expecting for the cheapest and eco-friendly alternative for getting higher yield. Biofertilizers is only the alternative way to get more production without harmful to environment. So the effect of different doses of biofertilizer (Rhizobium) on germination studies of Fenu-greek seed germination percentage, seedling growth, fresh weight and dry weight, chlorophyll, protein and soluble sugar content has been studied in the laboratory condition. There parameters increased to application when biofertilizer compared to control.
6

Organic soil amendments: potential source for heavy metal accumulation

81%
Genesh K. S., Sundaramoorthy P., Nagarajan M.
World Scientific News
|
2015
|
tom 16
7
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Ecophysiological and biochemical changes in Abelmoschus esculentus (L.) Moench under chromium stress

81%
Unnikannan P., Vedhanarayanan P., Sundaramoorthy P.
International Letters of Natural Sciences
|
2014
|
tom 02
Increasing concentrations of chromium caused reduction in growth, chlorophyll contents and mineral mutrients of bhendhi. At increasing concentrations of chromium, all the attributes were found to be reduced. Chromium is one of the toxic elements discharging from tannery industry. The long disposal of tannery effluent to the agricultural land causes serious damages in the soil texture; reduce the growth of microorganisms and agricultural crops. Large areas of Vellore district of Tamilnadu was seriously affected by the tannery effluent irrigation to the agricultural land. The present study was conducted to identify the phytotoxic effect and physiological changes of Abelmoschus esculentus (L.) Moench under the treatment of different concentrations of chromium solutions (2.5, 5, 10, 25, 50, 75 and 100 mg/l). The result shows that there was a gradual reduction in the morphological parameters (root length, shoot length, fresh weight and dry weight). Similarly the photosynthetic pigments (Chlorophyll and carotenoid) and biochemical parameters such as protein, amino acid, and sugars were also gradually decreased with increasing concentrations of chromium.
8
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Effect of FYM, N, P fertilizers and biofertilizers on germination and growth of paddy (Oryza sativa. L)

81%
Rajasekaran S., Sundaramoorthy P., Sankar Ganesh K.
International Letters of Natural Sciences
|
2015
|
tom 08
Biofertilizers are becoming increasingly popular in many countries and for many crops, but very few studies on their effect on growth in seedling stage have been conducted in rice. The experiments were conducted under laboratory conditions due to organic manure, fertilizers and bio fertilizers were observed in all experiments. The treatments such as organic manure, chemical fertilizers and Biofertilizers alone and in combination were applied. The growth parameters viz. germination percentage, root length, shoot length, fresh weight and dry weight were measured. Similarly the pigment contents such as chlorophyll-a, b, total chlorophyll and carotenoid were also measured at seventh day after sowing. All the parameters were higher in combined application of Biofertilizers than in single application and other treatments including control.
9
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Antimicrobial activity of chlorophyll and methanol extract of Lannea coromandelica Merr.

81%
Vedhanarayanan P., Vaithiyanathan T., Sundaramoorthy P.
International Letters of Natural Sciences
|
2015
|
tom 45
The antimicrobial activity of chloroform and methanol extracts of Lennea coromandelica were screened for their was studied against gram positive bacteria strains Staphylococcus aureus, Streptococcus pyogenes and Bacillus subtilis gram negative bacteria strains Pseudomonas aeruginosa, Klebsiella pneumoniae and Escherichia coli and fungal strains such as Candida albicans, C. parapsilosis, C. krusei and C. glabrata using disc diffusion method, determination of Minimum Inhibitory Concentrations (MIC), Minimum Bacterial Concentrations (MBC) and Minimum Fungicidal Concentrations (MFC). The antimicrobial activity for different concentrations like 250 μg, 500 μg and 1000 μg of different solvent extracts of Lannea cormandelica. bacterial strains and recorded in highest mean zones of inhibition ranged from 19.6 mm and Candidal strains and the exhibited the highest mean zones of inhibition ranged from 10.6 mm. Methanol extracts showed the best results as inhibition zones against tested organisms. Results showed also that, the greatest effect was towards Staphylococcus aureus and the lowest was against Candida krusei. The present study reported the great effect of Lannea cormandelica extracts against some of most important pathogens.
10
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Cadmium induced changes in growth and biochemical contents of tomato (Lycopersicon esculentum L.)

81%
Soundari M., Vaihiyanathan T., Sundaramoorthy P.
International Letters of Natural Sciences
|
2015
|
tom 45
The effects of different concentrations (10,20,30,40 and 50 ppm) of cadmium chloride on seed germination, root length, shoot length, fresh weight, photosynthetic pigments, protein content and peroxidase activity in tomato (Lycopersicon esculentum L.). Higher concentration of Cadmium were reported specially at 40 and 50 μm reduced germination significantly. Leaf chlorosis, wilting and leaf abscission were observed in plants with cadmium. Protein content and sugar content were reduced in higher concentrations of cadmium. However, lower concentrations of CdCl2 resulted in higher peroxidase activity in roots and shoots of tomato.
11
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Allelopathic effect of Azadirachta indica L. on the germination of Abelmoschus esculentus L.

71%
Vaithiyanathan T., Soundari M., Rajesh M., Sankar Ganesh K., Sundaramoorthy P.
International Letters of Natural Sciences
|
2014
|
tom 10
The chemical compounds have been reported to be exuded by plants and their inhibitory effects of other plants. The research work was carried out to study the allelopathic effect of root, bark and leaf extracts of Azadirachta indica L. on the seed germination of Abelmoschus esculentus L. Germination studies were conducted in laboratory, the bhendi seeds treated with the root, bark and leaf extracts of Neem. On the seventh day the morphological parameters, photosynthetic pigment and biochemical contents were analysed. The result showed that the rate of germination of bhendi decreased in all Azadirachta indica L. extracts. The reduction in biochemical contents of bhendi was also noted. The highest rate of germination was observed in control (distilled water) treatment and the highest rate of inhibition was observed in root extract followed by bark and leaf extracts.
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