Antagonistic Activity of Actinobacterial Isolates from Saline Soil against Rhizoctonia bataticola and their Growth Promoting Potential on Soybean.

Amarja Shrikrushna Khendkar; Aarti Rajeshwar Deshpande

Volume : IV, Issue : IX, September - 2014

Antagonistic Activity of Actinobacterial Isolates from Saline Soil against Rhizoctonia bataticola and their Growth Promoting Potential on Soybean.

Amarja Shrikrushna Khendkar, Aarti Rajeshwar Deshpande

Abstract :

This study was undertaken to isolate actinobacteria from saline soil having potential of inhibiting soybean plant pathogen Rhizoctonia bataticola and promoting plant growth to increase crop production. Total 48 actinobacterial isolates were obtained by spread plate technique from 19 rhizospheric soil samples of different plants from the fields of saline belt of Akola District. Actinobacterial isolates were tested for antagonistic activity against Rhizoctonia bataticola by dual culture method. Total 11 out of 48 actinobacterial isolates exhibited antagonistic activity against Rhizoctonia bataticola. Plant growth promoting activity of these 11 isolates was tested on soybean seeds by evaluating the seedling vigor index (SVI) by paper towel method. Total 8 isolates demonstrated significant antagonistic activity and plant growth promoting potential out of which ASG35 and ASG27 of Streptomyces were more effective.