Al Rahmad, Nirmala Putri (2025) Efficacy of Seed Soaking Using Paenibacillus sp. Bacteria to Control Xanthomonas sp. Leaf Blight Disease in Rice Plants. Undergraduate thesis, UPN Veteran Jawa Timur.
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Abstract
ABSTRACT The decline in rice productivity each year is partly caused by pathogens that infect rice seeds, namely the bacterium Xanthomonas oryzae, which causes bacterial leaf blight (BLB). One of the efforts undertaken is seed treatment before planting using environmentally friendly biological agents, specifically the application of Paenibacillus sp. bacteria. This study aims to determine the efficacy of seed soaking using Paenibacillus sp. bacteria in reducing disease intensity and enhancing rice plant growth. The research method used a completely randomized design (CRD) with four treatments: P0 = Streptomycin bactericide 0.2%, P1 = Paenibacillus sp. isolate, P2 = Bacillus BTH 22, P3 = Paenibacillus polymyxa, and five replications. The results showed that seed soaking treatment using Paenibacillus sp. bacteria at a dose of 20 ml/g was sufficiently effective in increasing germination rate by 91.25%, growth rate by 4.33%, and vigor index by 9.53% compared to Bacillus sp. BTH 22 and Paenibacillus polymyxa isolates. Additionally, seed soaking treatment using Paenibacillus sp. bacteria was able to extend the incubation period of Xanthomonas sp. bacteria for the longest duration of 3 HSI compared to the control treatment, with the lowest disease attack intensity of 10.21%, the highest efficacy rate of 53.32%, and the tallest plant height of 47.24 cm. Keywords: Rice plants; seed soaking; Paenibacillus sp; Xanthomonas sp.
| Item Type: | Thesis (Undergraduate) | ||||||||||||
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| Subjects: | S Agriculture > S Agriculture (General) | ||||||||||||
| Divisions: | Faculty of Agriculture > Departement of Agritechnology | ||||||||||||
| Depositing User: | Nirmala Putri Al Rahmad | ||||||||||||
| Date Deposited: | 13 Aug 2025 03:30 | ||||||||||||
| Last Modified: | 13 Aug 2025 03:30 | ||||||||||||
| URI: | https://repository.upnjatim.ac.id/id/eprint/41663 |
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