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2006 - 20102
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Subject: Microbiology × Author: Deora, Anupama × Start date: 2001 × Type: Thesis ×
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    ThesisItemOpen Access
    Isolation And Characterization Of Bacteria Degrading Pyrene-A Polycyclic Aromatic Hydrocarbon
    (Chaudhary Charan Singh Haryana Agricultural University; Hisar, 2010) Deora, Anupama; Suneja, Sunita
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    ThesisItemOpen Access
    Effect of digested distillery effluent on soil microbial population and plant growth of wheat (Triticum aestivum)
    (CCSHAU, 2006) Deora, Anupama; Kukreja, Kamlesh
    The present investigation was carried out to study the effect of different concentrations of digested distillery effluent on soil microbial population, seed germination and plant growth of wheat. The microbial population increased with increase in concentration of effluent up to 20% and slightly decreased with further increase in concentration of effluent. The count increased up to 60 days of incubation and later on decreased at 90 days of incubation but trend remained the same. Lower concentrations of effluent (10 and 20%) were not inhibitory to seed germination. Germination rate was poor in 50% effluent concentration while higher concentrations (75 and 100%) of effluent lead to complete failure of seed germination. Under pot house conditions also, lower concentrations (10 and 20%) of effluent were not inhibitory to seed germination but higher concentration (50%) of effluent suppressed and delayed germination rate. Higher concentration (50%) of effluent was inhibitory to plant growth when plants were irrigated with effluent before germination followed by when always irrigated with effluent after germination. Plant growth was completely suppressed when 50% effluent was used for irrigation through out the experiment. Maximum plant growth was obtained in 50% effluent concentration (comparable to 100% RDF) followed by 20% effluent concentration (comparable to 75% RDF) when plants were irrigated with effluent after germination at every 20 days of interval. When pots were irrigated with effluent only before germination, 20% effluent concentration gave better results in comparison to 10% effluent concentration. However, significantly higher plant growth was obtained when plants were irrigated with 10% effluent always after germination which was comparable to 75% RDF.