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Title: Assessment of Morphogenetic diversity and phytoremediation potentials of plants growing in arsenic rich soils of Punjab
Researcher: Dhir, Kirandeep Kaur
Guide(s): Saggoo, M I S
Keywords: Morphogenetic diversity, Punjab, Phytoremediation, Arsenic Toxicity, Botany
Upload Date: 23-Aug-2011
University: Punjabi University
Completed Date: 23/07/2010
Abstract: Advancement in the agricultural production has given rise to land pollution. Continuous imbalanced use of fertilizes and indiscriminate use of herbicides, insecticides, etc. on the crops along with organic domestic and industrial wastes has caused serious environmental pollution. The cotton belt of Punjab has seen tremendous increase in the incidence of dreaded diseases, cancer during the last decade virtually making it a cancer region of Punjab. The block Talwandi Sabo, District Bathinda (Punjab) is falls in the arsenic belt of Punjab. The genotoxicity of soil samples was studied by two different test systems: Allium anaphase-telophase chromosome aberration assay (Allium assay) and Yeast assay. The data on Allium anaphase-telophase aberration assay and yeast assay revealed the genotoxic nature of soil samples collected from three villages (Jajjal, Giana and Malkana). The observations showed that the incidence of aberrations in the RTCs as well as convertants in yeast increased with the increase in the concentrations of the soil extracts in a dose dependent manner. Morphologically and cytologically the plants from the study area were found to be similar to the plants of the control site. The plants of Patiala populations of these species had more pollen fertility than that of the plants from polluted area. Based on the RAPD analysis of four populations of each of the species i.e., Achyranthes aspera, Ageratum conyzoides, Amaranthus virdis, Digera muricata, Parthenium hysterophorus and Tribulus terrestris formed two major cluster groups. The populations of Trianthema portulacastrum formed three cluster groups. The present study has clearly revealed that the denizens of the polluted area have the potential to tolerate high concentrations. The tolerance index (TI) for roots was observed to be maximum in Parthenium hysterophorus. In the present study TF, BF and PC was observed to be greater than one in the case of Achyranthes aspera.
Pagination: vi, 131p.
Appears in Departments:Department of Botany

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02_certificate.pdf192.14 kBAdobe PDFView/Open
03_declaration.pdf195.87 kBAdobe PDFView/Open
04_acknowledgements.pdf100.57 kBAdobe PDFView/Open
05_contents.pdf147.84 kBAdobe PDFView/Open
06_chapter 1.pdf155.5 kBAdobe PDFView/Open
07_chapter 2.pdf426.44 kBAdobe PDFView/Open
08_chapter 3.pdf737.91 kBAdobe PDFView/Open
09_chapter 4.pdf2.53 MBAdobe PDFView/Open
10_chapter 5.pdf588.03 kBAdobe PDFView/Open
11_chapter 6.pdf2.04 MBAdobe PDFView/Open
12_abstract.pdf7.55 kBAdobe PDFView/Open

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