Authors:
Noor Aisyah Azman , Kamaruzaman Sijam , Erneeza Mohd Hata, Radziah Othman, Halimi Mohd Saud |
Abstract:
Plant growth promoting bacteria (PGPB) was used as bio fertilizer for different crop plants as an alternative source of chemical fertilizer that can reduce the input cost on farming. Two bacterial isolates, Bacillus licheniformis UPMC10 and Acinetobacter sp. JITUC7 were used in this study. Result from in vitro study showed that these bacteria were positive on siderophore and IAA production, phosphate solubilization and nitrogen fixation activity. Rice seeds treated Bacillus licheniformis UPMC10 recorded an increase of 14% seed germination compared to control. Similarly, an increase in vigor index of 659.00 was obtained when seeds were treated with Acinetobacter sp. JITUC7. Both bacterial isolates enhanced plant height, no. of tillers and grain weight when seeds were treated with fresh suspension of the bacteria. An average plant height of 128 cm was obtained when seeds were treated with Bacillus licheniformis UPMC10 and Acinetobacter sp. JITUC7. The average no. of tillers (13) and grain weight (120.67 g) were obtained when seeds were treated with Bacillus licheniformis UPMC10. Bacillus licheniformis UPMC10 is a potential PGPB evidenced by preliminary screening of plant growth promoting activities, in vitro and in vivo experiment. Bacillus licheniformis UPMC10 which able to adapt in environmental conditions and at the same time promote plant growth, has a wide potential to be developed into bio fertilizer. |
