title: Shelf life and colonization of soil by clay based cyanobacterial inocula.
abstract: Four heterocystous cyanobacteria, isolated from grasslands of Ujjain were selected to prepare the clay based inoculants. Inoculants were evaluated for shelf life in terms of the titer value at 6 month intervals for 24 months. For colonization by inoculants in natural grasslands, the clay based inocula were applied to the field at: 40, 80 and 120 kg/ha and their survival was estimated at different time interval. Fuller's earth based inoculants had showed 50-65% survival after two year storage. After showing an initial decline, the population of the inoculated cyanobacteria became stable after 3 months. The inoculated strains persisted in the soil for longer duration, even after four months, their population was about 10-70 times higher than that of the uninoculated plots.
authors.affiliation: Institute of Environment Management and Plant Sciences, Vikram University, Ujjain 456 010, India.
authors.forename: Vineeta
authors.initials: V
authors.lastname: Dubey
authors.forename: R C
authors.initials: RC
authors.lastname: Verma
mesh_terms: D000538:Aluminum Silicates; D018533:Biomass; D000077215:Clay; D015169:Colony Count, Microbial; D003470:Culture Media; D000458:Cyanobacteria / Q000254:growth & development*; D005308:Fertilizers / Q000382:microbiology*; D012988:Soil Microbiology; D013997:Time Factors
chemical_list: D000538:Aluminum Silicates; D003470:Culture Media; D005308:Fertilizers; D000077215:Clay