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Subject: Plant Pathology × Author: Balakrishnan, S × End date: 1986 × Type: Thesis ×
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    ThesisItemOpen Access
    Rhizosphere microflora of tobacco influence of tobacco mosaic virus and certain chemicals on the microbial population
    (Division of Plant Pathology, Agricultural College & Research Institute, Vellayani, 1967) Balakrishnan, S; KAU; Sam Raj, J
    A definite rhizosphere population was found to be establishedin the tobacco plants, within three days of germination of seeds. The population steadily increased with the age of plants till flowering stage, after which there was a gradual decline in all the three groups of microorganisms namely, bacteria, actinomycetes and fungi. The microbial population in the rhizosphere was significantly higher than that in the control soils at all stages of plant growth.