The rhizosphere soil possesses a large and
diverse population of microorganisms
mainly the bacteria. Bacteria in the
rhizosphere influence plant growth because
they affect soil chemical properties and
interact with plant roots, where the influence
can be beneficial, neutral, or deleterious
(Russell1981, Morita 2000, Sakaietal. 2004).
The microbes in the rhizosphere soil have
the property to compose the complex
Substances depending on the plant exudates