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Use of different materials as a carrier for plant growth promoting bacteria |
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| รหัสดีโอไอ | |
| Creator | Arawan Shutsrirung |
| Title | Use of different materials as a carrier for plant growth promoting bacteria |
| Contributor | Kankamon Yakanto |
| Publisher | Research and Technology Transfer Affairs Division.Khon Kaen University. |
| Publication Year | 2560 |
| Journal Title | Asia-Pacific Journal of Science and Technology (APST) |
| Journal Vol. | 22 |
| Journal No. | 1 |
| Page no. | 1-7 |
| Keyword | Carrier, Perlite, Vermiculite, Plant growth promoting rhizobacteria |
| URL Website | https://tci-thaijo.org/index.php/APST/index |
| Website title | https://tci-thaijo.org/index.php/APST/article/view/85547 |
| ISSN | 2539-6293 |
| Abstract | Rhizobium and Azospirillum are rhizobacteria that enhance plant growth via nitrogen fixation, nutrient solubilization and hormone production. These activities make them beneficial as microbial bio-fertilizers for legumes and economic crops. In this study, solid-base inoculants, i.e., perlite, vermiculite and mixed media, were evaluated for their potential use as carriers for Rhizobium CIAT899 and Azospirillum VAs087. The chemical and physical properties of the carrier materials and the population of the two strains were determined. The results revealed that the various carriers showed different effects on growth and survival of CIAT899 and VAs087 during 120 days of incubation. Mixed media gave the highest number of both strains (108 to 109 CFU g-1 of carrier), while perlite and vermiculite supported survival at only 106-107 CFU g-1 of carrier during 10 to 30 days after inoculation. On average, the CIAT899 counts were higher in all the carriers than those of VAs087. The number of viable bacteria declined after reaching maximal numbers and remained stable at between 104 and 106 CFU g-1 of carrier after 90 days of incubation, depending on the type of carrier. The results indicated that the use of a mixed medium as a carrier was appropriate for the production of bacterial inoculants. |
