Abstract
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. ʻPathum Thani 1ʼ.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 raiG1 of 16-16-8 and 20 kg raiG1 of 46-0-0), TR4) rice seed was soaked with bacteria and chemical fertiliser was applied (15 kg raiG1 of 16-16-8 and 10 kg raiG1 of 46-0-0), TR5) rice seed was soaked with bacteria and chemical fertiliser was applied (7.5 kg raiG1 of 16-16-8 and 5 kg raiG1 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 raiG1 of 16-16-8 and 5 kg raiG1 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
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