Yadav B.B.,Allahabad University |
Singh S.K.,Banaras Hindu University |
Dubey N.K.,Banaras Hindu University |
Shukla S.K.,KNIPSS |
Srivastava G.K.,Allahabad University
Taiwania | Year: 2015
In the present study soil, water and plant samples were collected from seven different natural populations of Isoetes dixitei which are found growing on the tablelands of Satara and Kolhapur districts of Maharashtra, India. The collected soil and water samples have been analysed for the colour, texture, available plant nutrients, electrical conductivity, pH and BOD. The soil and water factors along with biotic factors are compared with the number of plants per m2, length of plants, number of leaves and roots per plant to understand the morphological diversity and biology within different populations of I. dixitei. The results of present analysis reveals that these ecological factors such as organic carbon, iron, phosphorus and potassium in soil and low pH of soil and water have positive relationships with the growth, robustness and diversity of I. dixitei. However, copper, zinc and electrical conductivity in the soil have negative significant role in influencing the plant characters. The role of manganese appears to be not significant. The biological factors play major role in controlling the diversity (number of plants per m2) of this taxon. © 2015 College of Life Science. All rights reserved.
Prabhuji S.K.,Biotechnology and Molecular Biology Center |
Gaur R.,Awadh University |
Tripathi A.,KNIPSS |
Srivastava G.K.,Biotechnology and Molecular Biology Center |
Srivastava R.,Biotechnology and Molecular Biology Center
Medicinal Plants | Year: 2013
Antifungal activity of Saccharomyces cerevisiae culture, isolated from the toddy of Borassus flabellifer, has been studied in vitro on fish pathogenic watermoulds, viz., Achlya orion, Saprolegnia diclina, Aphanomyces laevis and Allomyces arbuscula. Poison-culture method has been used during the experimental procedure. The results have indicated that the effect of Sachharomyces cerevisiae culture was fungistatic and not fungicidal.
Nigam S.K.,Ganpat Sahai Postgraduate College |
Singh J.,Td College |
Singh A.L.,Ganpat Sahai Postgraduate College |
Das V.K.,KNIPSS |
Singh P.B.,Ganpat Sahai Postgraduate College
Journal of Ecophysiology and Occupational Health | Year: 2011
The present investigation was performed to monitor the HCHs (HCH isomers), DDTs (DDT and its metabolites), chlorpyrifos, plasma levels of estradiol-17β (E2) and gonadosomatic index (GSI) between the sampling sites of the non-polluted ponds of Gujartal, Jaunpur (reference site) and the polluted river Gomti (Jaunpur), affecting the reproductive physiology of some edible female catfish during pre-monsoon season. The HCHs, DDTs and chlorpyrifos were measured by gas liquid chromatography (GLC) and hormone by Enzyme-Linked Immunosorbent Assay (ELISA). The results indicated that the presence of HCHs, DDTs and chlorpyrifos was very high in the catfish captured from polluted river as compared from the conspecific fish captured from reference site. The GSI and E2 declined in female catfish of polluted site when compared to same species from reference site. Results have also indicated that catfish contained high bioaccumulation of HCHs, DDTs and chlorpyrifos which was beyond permissible limit as compared to the female catfish of the reference site. In conclusion, the fishes of river Gomti were highly polluted when compared with the fish of reference site as was evident from high levels of tissue bioaccumulation of HCHs, DDTs, chlorpyrifos and decreased levels of plasma E2 inhibiting the reproductive physiology of these species at receptor level. However, the levels exceeded maximum residue limits (MRL) as recommended by Codex, hence it is suggested that the fish containing pesticide residues beyond permissible limit should be avoided for the food purposes.
Sinha D.K.,P.A. College |
Singh R.,KNIPSS |
Rastogi G.K.,Sunderdeep Engineering College
Indian Journal of Environmental Protection | Year: 2011
Ten different underground drinlcing water samples were collected during the year 2009 from different India Mark 2 handpumps of extensively used different public places at Sultanpur following standards methods of sampling. Samples were quantitatively analysed for a number of physico-chemical parameters by standard methods and procedures prescribed by APHA and estimated values were compared with WHO drinking water standards. The water of almost all the sites was found to be alkaline, hard or very hard and having high extent of chemical contaminants. The drinking water is deficient of essential micro-nutrients and fluoride, an essential element. People exposed to water of study area must be facing the repercussions of polluted drinking water. Water quality management of underground resources at Sultanpur is urgently needed. Present study may assist local authorities in making future underground water quality management policies. © 2011 - Kalpana Corporation.
Singh R.S.,Gorakhpur University |
Singh S.P.,KNIPSS |
Gupta G.K.,Gorakhpur University
Proceedings of SPIE - The International Society for Optical Engineering | Year: 2011
Cahill-Glauber C(s)-correspondence is employed to construct Quasi-Probability Distribution Functions (QPDFs) for optical-polarization in phase space following equivalent description of polarization in Classical Optics. The proposed scheme provides pragmatic insights as compared to obscure SU (2) quasi-distributions on Poincare sphere. QPDF (Wigner function) of bi-modal quadrature coherent states is evaluated and numerically investigated to demonstrate the application. © 2011 SPIE.