7th ISF

BIOL037 - Association of Plant Growth Promoting Rhizobacteria (PGPR) with Salt Tolerance of Rice Seed Germination

Marine rice cultivation is a potential solution to mitigate land loss caused by rising sea levels. This study examined the effects of Bacillus subtilis, Bacillus megaterium, and Pseudomonas fluorescens on the germination of Pathum Thani 1 rice under various salinity conditions. Rice seeds were divided into four groups: control group (CL), seeds inoculated with B. subtilis (BS), seeds inoculated with B. megaterium (BM), seeds inoculated with P. fluorescens (PF). The seeds were submerged in 0, 200, 400, and 600 mM NaCl solutions, planted, and observed for three days. The emergence of coleoptile was found before the radicle. The seed germinations in every sodium chloride concentration were lower than those in the control group. Germination percentage (GP), seedling stage, and Modified Germination Index (MGI) appeared to be higher in the inoculated group of all bacteria, which indicated that the inoculation of B. subtilis, B. megaterium, and P. fluorescens improved the germination and growth of rice seeds.

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