Effect of herbicides contamination on the bio-molecules of earthworm, Eisenia fetida

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dc.contributor.advisorDharambir Singh
dc.contributor.authorHem Lata
dc.date.accessioned2016-10-22T14:03:09Z
dc.date.available2016-10-22T14:03:09Z
dc.date.issued2015
dc.description.abstractAmong the soil organisms, earthworms are recognized as the most important for their role in the improvement of physical and chemical characteristics of soil and thus increases its fertility. Eisenia fetida is the most utilized earthworm species for organic waste management. The present study was carried out to investigate the effect of herbicides on the bio-molecules of earthworm. The results of present study showed acute toxicity of two herbicides viz. pinoxaden and sulfuron at four different concentrations on earthworms. To assess the effect of herbicides on the earthworm’s survival rate, growth (length and weight), reproductive efficacy and cocoon production was monitored and it was observed that as the concentration of herbicides increased, the survival rate, growth and cocoon production decreased. Maximum reduction in length (6.41 and 6.73 cm) and weight (0.54 and 0.61g) was in pinoxaden @ 3.0 ml/kg of soil and sulfuron @ 3.0 mg/kg soil respectively on 60 th day of experiment. The maximum percent decrease in the population of earthworms and rate of cocoon production was (44.59%) and (23.07%) respectively in case of pinoxaden @ 3.0 ml/kg of soil. The impact of herbicides on carbohydrates, lipid and protein contents was quite significant and the maximium decrease in carbohydrates content (60.68%) followed by lipid (45.39%) and protein (19.00%) in pinoxaden @ 3.0 ml/kg soil as compared to control. There was sharp increase in the antioxidant activity in earthworms treated with different herbicides w.r.t. control and maximum percent increase (30.12%) in antioxidant activity was in earthworms treated with pinoxaden @ 3.0 ml/kg soil. It was concluded that pinoxaden is comparatively more toxic on the growth parameters, reproduction efficiency and biomlecules of E. fetida.en_US
dc.identifier.urihttp://krishikosh.egranth.ac.in/handle/1/81399
dc.language.isoenen_US
dc.publisherCCSHAUen_US
dc.subZoology
dc.subjectHerbicides, Biological phenomena, Toxicity, Biological development, Proteins, Animal products, Wastes, Concentrates, Antioxidants, Pesticidesen_US
dc.these.typeM.Sc
dc.titleEffect of herbicides contamination on the bio-molecules of earthworm, Eisenia fetidaen_US
dc.typeThesisen_US
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