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All Journal Jurnal Fitopatologi Indonesia JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA
Nurmujahidin
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Agriculture, Biological Sciences & Forestry Medicine & Pharmacology

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Biological Control of Bacterial Grain Rot Disease Caused by Burkholderia glumae Using Actinomycetes Nurmujahidin; Giyanto, Giyanto; Dadang
Jurnal Fitopatologi Indonesia Vol 19 No 2 (2023): Maret 2023
Publisher : The Indonesian Phytopathological Society (Perhimpunan Fitopatologi Indonesia)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14692/jfi.19.2.63-73

Abstract

Biological Control of Bacterial Grain Rot Disease Caused by Burkholderia glumae Using ActinomycetesBacterial grain rot disease is an important disease in rice plants caused by the bacterium Burkholderia glumae and causes yield loss up to 70%. In general, it is recommended to control this disease by seed treatment using various biological agents, including actinomycetes which produce antibacterial bioactive compounds. The aim of this study was to obtain actinomycetes strains that have the potential to control bacterial grain rot caused by B. glumae. The stages of the research included isolating and screening actinomycetes as potential biological agents against B. glumae, testing the phytotoxicity of actinomycetes on rice seeds, and testing the effectiveness of actinomycetes in controlling B. glumae on rice in the nursery phase. There were 40 actinomycetes isolated from rice plants and the rhizosphere and 17 of them had no potential as pathogens for plants or mammals. The suppression potency of the actinomycetes based on antibiosis test yielded 7 actinomycetes strains that were able to suppress the development of B. glumae and 5 strains had an inhibition zone of more than 2 mm, were not phytotoxic to rice plants and had the ability to promote plant growth. This actinomycete strain affects the growth of B. glumae and also suppresses the degree of its infection. Actinomycetes ST1, ST27, and BT23 strains were effective in suppressing bacterial grain rot in the nursery phase.
The role of bacterial consortium as bioactivator to stimulate production and suppress grain rot disease and bacterial leaf blight in rice Sahlan, Fadyah Khamila; Ayu Eka, Nur Fadhillah; Junaid, Muhammad; Hardina, Nur; Nurmujahidin; Kuswinanti, Tutik; Patandjengi, Baharuddin
Jurnal Hama dan Penyakit Tumbuhan Tropika Vol. 23 No. 2 (2023): SEPTEMBER, JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA: JOURNAL OF TROPICAL PLAN
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jhptt.22365-70

Abstract

Burkholderia glumae and Xanthomonas oryzae pv. oryzae are the primary causes of bacterial disease in rice, capable of reducing production and posing a threat to food availability. This research aims to assess the efficacy of a consortium of five bacteria contained in Mikrobat as bioactivators. The goal is to enhance rice yields, mitigate the severity, and suppress grain rot disease and bacterial leaf blight in rice. The research employed a split-plot design encompassing 12 treatment combinations replicated three times. The experimental setup involved two factors: the main plot consisted of rice varieties-Ciherang, Inpari 4, and Trisakti-while the subplots represented types of bioactivators-Mikrobat, EM4, Trichoderma asperellum, and a control. Results demonstrated Mikrobat’s positive impact compared to the control, with an average of 17.37 productive tillers and higher yields than other bioactivator treatments. Notably, Mikrobat exhibited 50.04% spikelets per panicle and a 1000-grain weight of 19.77 g. The severity of disease with Mikrobat treatment was notably lower than with EM4 and T. asperellum, featuring 4.20% for grain rot disease and 4.41% for bacterial leaf blight. This was significantly different from the control, which showed severity rates of 9.94% for grain rot disease and 7.75% for bacterial leaf blight. Among the three tested varieties, Ciherang demonstrated the best response, displaying higher resistance to both tested diseases. The varietal treatments did not significantly differ from each other. Although Mikrobat’s effects were not significantly distinct from EM4 and T. asperellum, its usage still reduced the severity and suppression of grain rot and leaf blight diseases
Co-Authors Ayu Eka, Nur Fadhillah Baharuddin Patandjengi Dadang Junaid, Muhammad Nur Hardina Sahlan, Fadyah Khamila Tutik Kuswinanti