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Nagarajan, K.
- Antibacterial Efficiency of Fabaceae Plants of a Tropical Freshwater Lake
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PDF Views:421
Authors
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1 PG and Research Department of Zoology, Sri Vasavi College, Erode – 638 316, IN
1 PG and Research Department of Zoology, Sri Vasavi College, Erode – 638 316, IN
Source
ScieXplore: International Journal of Research in Science, Vol 2, No 2 (2015), Pagination: 13-17Abstract
Obtaining the plant drugs for the production of commercial products is the recent research scenario. But still, the role of a plant species in its ecosystem is not much explored. The present study intended to find antibacterial activity of Fabaceae plant species in a tropical freshwater lake against isolated indigenous bacterial species. Results revealed that the fabaceae plants Abrus precatorus, Acacia nilotica, Cajanas cajan, Cassia auriculata, Clitoria ternatia, Crotalaria vergosa, Crotia ternatia, Mimosa pudica, Pongamia pinnata, Sesbania grandiflora, Tephrosia purpuria and Vigna mungo of Vellode lake have potential antibacterial activity against indigenous bacterial isolates from soil and water samples.Keywords
Fabaceae Plants, Indigenous Bacteria, Tropical Freshwater Lake.References
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- Influence of Treated Dairy Effluent on Haematological Changes in Freshwater Catfish Clarias batrachus
Abstract Views :141 |
PDF Views:0
Authors
Affiliations
1 Department of Zoology, Sri Vasavi College, Erode-638 316, Tamilnadu, IN
1 Department of Zoology, Sri Vasavi College, Erode-638 316, Tamilnadu, IN
Source
Nature Environment and Pollution Technology, Vol 6, No 3 (2007), Pagination: 381-386Abstract
The effect of treated dairy effluent was assessed by performing chronic exposure test on the fish Clarias batrachus. The fish was exposed to four concentrations of treated dairy effluent, 25%, 50%, 75%and 100% for a period of 30 days. Haematological observations were made after this period with respect to the indices viz., total erythrocytes (RBC), haematocrit or packet cell volume (PCV), mean corpuscular volume (MCV), haemoglobin (Hb), mean corpuscular haemoglobin (MCH), mean corpuscular haemoglobin concentration (MCHC), platelet (Plt) and mean platelet volume (MPV).- Performance Evaluation of Soil Moisture Sensor in Black Soil for Effective Water Management
Abstract Views :201 |
PDF Views:1
Authors
Affiliations
1 Department of Soil and Water Engineering, Tamil Nadu Agricultural University, Coimbatore (T.N.), IN
2 Department of Agricultural Chemistry and Soil Science, Tamil Nadu Agricultural University, Coimbatore (T.N.), IN
1 Department of Soil and Water Engineering, Tamil Nadu Agricultural University, Coimbatore (T.N.), IN
2 Department of Agricultural Chemistry and Soil Science, Tamil Nadu Agricultural University, Coimbatore (T.N.), IN
Source
An Asian Journal of Soil Science, Vol 12, No 1 (2017), Pagination: 49-54Abstract
A study was conducted to develop the sensor and evaluate the soil moisture by using soil moisture sensors and to establish the relationships between soil moisture content and electrical resistance value. Study involved the fabrication of the soil moisture probes, automation network and laboratory testing of automation system. The soil moisture sensor and automation system used for experiment were developed at Department of Soil and Water Engineering, Tamil Nadu Agricultural University, Coimbatore. System is tested and calibrated for automatic irrigation scheduling. Laboratory test programmes were conducted for the performance of the soil moisture sensor in salt solution and different soils and to develop the calibration curve. It was observed that a significant logarithmic relation between electrical conductivity and resistive value of sensor-1, sensor-2, sensor-3 and sensor-4 with an R2 value of 0.95, 0.96, 0.96 and 0.96, respectively and with mean values of electrical resistance found R2 value of 0.964. Because of the sensors were tested for wide range of electrical conductivities ranges 0.01 dSm-1 to 8.12 dSm-1. Soil moisture sensor was evaluated with respect to the moisture content of the black soil and it was predicted that the electrical resistance in the range 197 Ohms to 260 Ohms at an average of 224 Ohms at average soil moisture content 58.51 per cent. And at the range of 410 Ohms to 511 Ohms at an average 468 Ohms at 32.41 per cent on 75 hours during the experiment. It was observed that average moisture content 58.51, 57.01, 55.08, 52.73, 50.63, 48.48, 46.16, 42.01, 39.68, 37.26, 34.73 and 32.41 per cent recorded at an average duration of 0, 3, 6, 18, 24, 27, 45, 48, 51, 69, 72 and 75 hours, respectively.Keywords
Soil Moisture Sensor, Black Soil, Field Capacity, Resistivity, Electrical Conductivity.References
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- Thompson, R.B., Gallardo, M., Valdez, L.C. and Fernandez, M.D. (2007). Using plant water status to define threshold values for irrigation management of vegetable crops using soil moisture sensors. Agric. Water Mgmt., 88(1): 147-158.
- Sambasiva Swaminathan (1923–2020)
Abstract Views :221 |
PDF Views:84
Authors
Affiliations
1 Department of Organic Chemistry, Indian Institute of Science, Bengaluru 560 012, IN
2 #007, Block 1, Serene Urbana, Kannamangala, Bengaluru 562 110, IN
1 Department of Organic Chemistry, Indian Institute of Science, Bengaluru 560 012, IN
2 #007, Block 1, Serene Urbana, Kannamangala, Bengaluru 562 110, IN