Percentage of total soil micro-organisms (g~(-1) of entisol soil) in presence of Phytoalexins, (Chlorogenic acid, Phloretin, Caffeic acid, Hydro- quinone) CaCO3 at 40% moisture, 7 and 30 days time of reaction (en/3)

摘要

Percentage soil presence of total soil micro-organisms (g~(-1)of entisol) soil presence of phytoalexins (Chlorogenic acid, Phloretin, Caffeic acid, Hydroquinone) and CaCO3, both at tppm and 10ppm at 40% moisture and 7 and 30 days time of reaction hasbeen studied, at 7 days time of reaction, all phytoalexins at both the concentrations (1ppm and 10ppm) reduce a tremendously the total micro-organisms of soil, greater deduction being at the higher concentration (10ppm) of the phytoalexins. In presence of CaCO_3 (Ippm) this reduction is controlled to some extent, the control being higher with higher concentrations CaCO_3 at 30 days time of reaction, the phytoalexins invigorated the postive growth and development of the micro-organisms which found to bemore at 10ppm of the phytoalexins and CaCO_3also at its higher doses (1ppm+JOppm) The efficiency order of the phytoalexins increasing or decreasing the number of soil micro-organisms was as shown below :