Pantoea spp. Application to Increase the Growth and Yield of Rice ‘Pathum Thani 1’

Penkhae Rungrueng, Sudarat Sodium, Chairit Chalee, Soontreya Kalawong and Kiriya Sungthongwises

Background and Objective: Pantoea sp. SP108 was isolated from the U-thong district, Suphanburi province to promote plant growth. Therefore, this research aimed to study the effect of Pantoea sp. on the growth and yield of rice cv. ‘Pathum Thani 1’. Materials and Methods: Rice seeds were pre-germinated and cultivated in plastic pots (1 seedling/pot). The six treatments were TR1) not soaked with bacteria and application of chemical fertiliser, TR2) rice seed were soaked with a bacterial concentration of 10⁸ CFU, TR3) rice seed was soaked with bacteria and chemical fertiliser was applied (30 kg rai^–1 of 16-16-8 and 20 kg rai^–1 of 46-0-0), TR4) rice seed was soaked with bacteria and chemical fertiliser was applied (15 kg rai^–1 of 16-16-8 and 10 kg rai^–1 of 46-0-0), TR5) rice seed was soaked with bacteria and chemical fertiliser was applied (7.5 kg rai^–1 of 16-16-8 and 5 kg rai^–1 of 46-0-0) and TR6) rice seed was soaked with bacteria and were sprayed 25 days after transplanting and panicle initiation. Results: The results showed that soaking in Pantoea sp. concentration of 10⁸ CFU for 30 min with chemical fertiliser applied at a rate of 7.5 kg rai^–1 of 16-16-8 and 5 kg rai^–1 of 46-0-0 had a significant effect on the growth and yield of Pathum Thani 1 (p<0.01), especially the tillers per clump, canopy width, leaf length, shoot and root fresh weight, filled grain, panicles number per clump and rice yield per rai. Conclusion: Pantoea sp. solution could be used with ¼ fertiliser to increase yield components of Pathum Thani 1.

View Fulltext Back