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Title: An investigation on Allelopathic potential of three selected weeds growing in West Bengal
Authors: Bhattacharjee, Aloke
Bhakat, Ram Kumar
Haque, Mahmudul
Keywords: Allelopathy
Weeds - West Bengal
Issue Date: 27-Aug-2021
Publisher: Vidyasagar University, Midnapore, West Bengal, India
Abstract: In our state of West Bengal Desmostachya bipinnata L. Stapf (Poaceae), Parthenium hysterophorus L. Asteraceae, Alternanthera sessilis (L.) R. Br. ex DC. (Amaranthaceae), are three profusely growing weeds with potential allelochemicals. An investigation therefore was carried out for the determination and evaluation of their allelopathic potential in terms of their relative allelopathic vigour from a physiological, biochemical (metabolic changes), software prediction and cytological approach. Allelochemicals in various concentrations [1:5, 1:10 and 1:20 (w/v)] of leaf extracts and leachates of the three weeds respectively are tested on Vigna radiata and Senna occidentalis seed germination, TTC stainability and several metabolic parameters like- changes in insoluble and soluble carbohydrates, amino acids, protein, DNA, RNA and enzymes like dehydrogenase ,catalase, peroxidase and amylase. Computational tools evaluate numerous compounds for innumerable toxicological end-points. Screening method, using ChemID plus is easy, highlighting compounds for which experimental evaluation is recommendable. It produces a system for predicting the allelochemical toxicity and/or mutagenicity. This system can also give additional information, by identifying genotoxic properties in a fast and convenient way on the basis of the analogus chemical structure prediction. Cytological evaluation of allelopathic potential is done by microscopic study of allelochemical induced alterations of cytological characters of root tip cells of Vigna radiata and Senna occidentalis with particular reference to various anomalies during celldivision and chromosomal structural abnormalities i.e. Chromosomal Abnormality Index reveal that Desmostachya bipinnata> Parthenium hysterophorus > Alternanthera sessilis in terms of allelopathic potential indicating that the monocotyledonous weed Desmostachya is more allelopathically vigorous than the other two dicotyledonous weeds. Parthenium and Alternanthera. Further research might thus be relevant to know the interaction of other invasive dicotyledonous and monocotyledonous weeds on other weed and crop species opening a new plethora of research.
Appears in Collections:Botany and Forestry - Ph.D

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01_Title.pdf27.71 kBAdobe PDFView/Open
02_Certificate.pdf1.41 MBAdobe PDFView/Open
03_Abstract.pdf61.46 kBAdobe PDFView/Open
04_Declaration.pdf83.86 kBAdobe PDFView/Open
05_Acknowledgement.pdf68.49 kBAdobe PDFView/Open
06_Contents.pdf350.97 kBAdobe PDFView/Open
07_List of tables.pdf75.36 kBAdobe PDFView/Open
08_List of figures.pdf77.24 kBAdobe PDFView/Open
09_Abbreviations.pdf79.27 kBAdobe PDFView/Open
10_Introduction.pdf149.21 kBAdobe PDFView/Open
11_Objectives.pdf168.31 kBAdobe PDFView/Open
12_Review of literature.pdf390.87 kBAdobe PDFView/Open
13_Experimental Design.pdf137.89 kBAdobe PDFView/Open
14_Chapter-1.pdf3.73 MBAdobe PDFView/Open
15_Chapter-2.pdf644.58 kBAdobe PDFView/Open
16_Chapter-3.pdf1.05 MBAdobe PDFView/Open
17_Conclusion.pdf119.85 kBAdobe PDFView/Open
18_Summary.pdf126.44 kBAdobe PDFView/Open
19_Directions for future Research.pdf116.22 kBAdobe PDFView/Open
20_References.pdf903.32 kBAdobe PDFView/Open
21_Publications related To thesis.pdf298.17 kBAdobe PDFView/Open

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