Rice Plant Growth Enhancement and Bacterial Leaf Blight Control by the Rhizobacterial Consortium

DOI

10.2991/978-94-6463-166-1_28How to use a DOI?

Keywords

Rhizobacterial consortium; rice plants; Xanthomonas oryzae pv; oryzae

Abstract

Bacterial leaf blight (BLB) in rice plants is brought on by the bacterium Xanthomonas oryzae pv. oryzae (Xoo). Rhizobacteria are a group of plant root microorganisms that have a beneficial effect on plants. The rhizobacteria A consortium is a collection of friendly microorganisms that can prevent the spread of plant diseases. In this study, we to boost rice plant growth and manage BLB disease by acquiring an efficient consortium of rhizobacteria. The study employed a two-stage, entirely randomized design. Stenotrophomonas pavanii KJKB 5.4, S. malthophilia LMTSA 5.4, and Bacillus cereus AJ 3.4 were combined in stage 1 to test the viability of the mixture with shelf lives of 0, 2, and 6 weeks. The rhizobacteria consortium’s second stage of testing a biocontrol agent and biological fertilizer in plants. The seeds were soaked before being added to the rhizobacteria consortium solution, and roots of rice seedlings, followed by inoculation of Xoo bacteria when the plants were 40 days old. Phase 1 results showed that the rhizobacterial population was relatively stable up to six weeks of storage, around 107 CFU/mL. The results of stage 2 demonstrated that when compared to controls, the rhizobacteria consortium significantly affected various levels of severity. S. pavanii KJKB 5.4 + S. malthophilia LMTSA 5.4) and S. pavanii KJKB 5.4 + S. malthophilia LMTSA 5.4 + B. cereus AJ 3.4) were both preserved for six weeks. Which was kept in storage for two weeks revealed illness severity of 43.15 and 43.93%, respectively, with disease suppression effectiveness of 52.04 and 48.77%. As a result of the consortium of S. pavanii KJKB 5.4 + S. malthophilia LMTSA 5.4 + B. cereus AJ 3.4 being stored for six weeks, rice plants with an effective vigor index of 13.15% and root length of 41.41% grew more quickly. The results of this study indicate that the rhizobacteria consortium is effective in suppressing the severity of BLB disease and increasing the growth of rice plants.

Copyright

© 2023 The Author(s)

Open Access

Open Access This chapter is licensed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/), which permits any noncommercial use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license and indicate if changes were made.

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TY  - CONF
AU  - Haliatur Rahma
AU  - Winarto Winarto
AU  - Sri Mulyani
AU  - Nila Kristina
PY  - 2023
DA  - 2023/05/22
TI  - Rice Plant Growth Enhancement and Bacterial Leaf Blight Control by the Rhizobacterial Consortium
BT  - Proceedings of the 3rd International Conference on Biology, Science and Education (IcoBioSE 2021)
PB  - Atlantis Press
SP  - 198
EP  - 211
SN  - 2468-5747
UR  - https://doi.org/10.2991/978-94-6463-166-1_28
DO  - 10.2991/978-94-6463-166-1_28
ID  - Rahma2023
ER  -