Life Sciences

The study on Indigenous Knowledge of Tribals of Pachaimalai hills, was conducted to study about adopting indigenous agricultural practices followed by tribal farmers in Pachaimalai hills in Trichy district of Tamilnadu. A sample of one hundred tribal farmers (respondents) was selected from the tribal hamlets using proportionate random sampling technique. Nearly twenty one indigenous agricultural practiceswere identified in the crops like paddy, tapioca and sorghum. In addition ten common indigenous agricultural practices were also identified.

In the present investigation, plant growth promoting bacteria such as Pseudomonas and Bacillus were isolated from the rhizosphere soil of rice (Oryza sativa L.). Bacillus is a group of gram positive, aerobic or anaerobic bacteria widely found in soil and water. Bacillus is a common free - living species found in all types of soil and environment. Pseudomonas is gram negative rod shaped and polar flagellated bacteria found in most of the environment.