Pongamia pinnata is well known forest tree speices having medicinal and biofuel properties. It is slow growing and seed dormancy is major constraints behind its large scale propagation. Micorbial inoculations are known to enhance the plant growth and productivity on is application of host rhizosphere. In view, a pot culture experiment was carried out on Pongamia pinnata for which 30 days old seedlings were raised from freshly collected seeds and transplanted in the poly pots containing red laterite soil and subsequently supplemented with 7 days old liquid culture of six different pretested phosphate solubilising fungi.
The fungal inoculation was done trice with monthly interval upt 120 days of plant growth. Data recorded for plant height , biomass , leaf no and leaf area , other physiological growth parameters RGR, NAR, LAR , QI and R/S exhibited growth promoting activity of the three fungal inoculants viz., Aspergillus flavus, Penicillium implicatum and Fusarium oxysporum. However, Aspergillus flavus was found to enhance the plant growth and biomass significantly (P<0.05).
Key Words: Aspergillums, Forest, Penicillium, Pongamia pinnata, Transplantation, tree