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Efektivitas Berbagai Konsentrasi Bakteri Rizosfer Kelapa Sawit dalam Mengendalikan Penyakit Antraknosa (Colletotrichum sp.) pada Cabai Merah (Capsicum annuum L.) Secara In Vivo

Jurnal Ilmiah Membangun Desa dan Pertanian · Vol. 11 No. 2 (2026) · pp. 113–125

DOI
10.37149/jimdp.v11i2.2595
ISSN
2527-2748
Published
2026-05-19
Publisher
Department of Agribusiness, Halu Oleo University Jointly with Perhimpunan Ekonomi Pertanian Indonesia - Indonesian Society of Agricultural Economics (PERHEPI/ISAE)
Language
eng
License
creativecommons.org/licenses/by-sa/4.0/

Abstract

Red chili (Capsicum annuum L.) is a horticultural crop widely cultivated in Indonesia. Anthracnose is one of the most destructive diseases affecting chili fruits. Disease management still relies heavily on chemical fungicides. Therefore, this study aimed to determine the most effective concentration of oil palm rhizosphere antagonistic bacteria for controlling anthracnose disease in red chili under in vivo conditions. The experiment was conducted from September to October 2025 at the Soil and Agroclimatology Laboratory, Universitas Sultan Ageng Tirtayasa. A completely randomized design (CRD) with a single factor consisting of six treatments was employed: a negative control (distilled water), a positive control (chemical fungicide), and bacterial concentrations of 10⁶, 10⁸, 10¹⁰, and 10¹² CFU/mL. Each treatment was replicated five times, with three chili fruits per experimental unit, resulting in 30 experimental units and a total of 90 fruits. The observed parameters included the incubation period, disease incidence, disease intensity, and fruit weight loss over 7 days after inoculation. The results indicated that no single bacterial concentration consistently provided the greatest suppression of Colletotrichum sp. across all measured parameters. However, bacterial concentrations of 10⁶ and 10⁸ CFU/mL showed a greater tendency to suppress disease development up to seven days after inoculation than the higher concentrations of 10¹⁰ and 10¹² CFU/mL. The bacterial concentration of 10⁸ CFU/mL reduced disease intensity to 38.66%, compared with 61.33% in the negative control. Meanwhile, the bacterial concentration of 10⁶ CFU/mL reduced fruit weight loss to 17.50%, compared with 35.85% in the negative control. These findings indicate that oil palm rhizosphere bacteria have potential as biological control agents in integrated pest and disease management and as an environmentally friendly biofungicide.

Keywords

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Noviana NovianaAffiliation unknown1
Dewi FirniaAffiliation unknown1
Imas RohmawatiAffiliation unknown1

Affiliations come from OpenAlex; journal OAI-PMH metadata carries none. Authors without an OpenAlex ID are matched by name, which can merge or split people.

Metadata source: OAI-PMH (metadata jurnal) https://ejournal.agribisnis.uho.ac.id/index.php/JIMDP/oai, first harvested 4 Nov 2026, last seen 4 Nov 2026.
Original metadata (oai_dc) 
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	<dc:title xml:lang="en-US">Efektivitas Berbagai Konsentrasi Bakteri Rizosfer Kelapa Sawit  dalam Mengendalikan Penyakit Antraknosa (Colletotrichum sp.)  pada Cabai Merah (Capsicum annuum L.) Secara In Vivo</dc:title>
	<dc:creator>Salsabila, Indah Maulida</dc:creator>
	<dc:creator>Muztahidin, Nur Iman</dc:creator>
	<dc:creator>Ritawati, Sri</dc:creator>
	<dc:creator>Andree Saylendra, Andree Saylendra</dc:creator>
	<dc:subject xml:lang="en-US">anthracnose</dc:subject>
	<dc:subject xml:lang="en-US">biocontrol</dc:subject>
	<dc:subject xml:lang="en-US">biological control agent</dc:subject>
	<dc:subject xml:lang="en-US">plant disease</dc:subject>
	<dc:subject xml:lang="en-US">rhizobacteria</dc:subject>
	<dc:description xml:lang="en-US">Red chili (Capsicum annuum L.) is a horticultural crop widely cultivated in Indonesia. Anthracnose is one of the most destructive diseases affecting chili fruits. Disease management still relies heavily on chemical fungicides. Therefore, this study aimed to determine the most effective concentration of oil palm rhizosphere antagonistic bacteria for controlling anthracnose disease in red chili under in vivo conditions. The experiment was conducted from September to October 2025 at the Soil and Agroclimatology Laboratory, Universitas Sultan Ageng Tirtayasa. A completely randomized design (CRD) with a single factor consisting of six treatments was employed: a negative control (distilled water), a positive control (chemical fungicide), and bacterial concentrations of 10⁶, 10⁸, 10¹⁰, and 10¹² CFU/mL. Each treatment was replicated five times, with three chili fruits per experimental unit, resulting in 30 experimental units and a total of 90 fruits. The observed parameters included the incubation period, disease incidence, disease intensity, and fruit weight loss over 7 days after inoculation. The results indicated that no single bacterial concentration consistently provided the greatest suppression of Colletotrichum sp. across all measured parameters. However, bacterial concentrations of 10⁶ and 10⁸ CFU/mL showed a greater tendency to suppress disease development up to seven days after inoculation than the higher concentrations of 10¹⁰ and 10¹² CFU/mL. The bacterial concentration of 10⁸ CFU/mL reduced disease intensity to 38.66%, compared with 61.33% in the negative control. Meanwhile, the bacterial concentration of 10⁶ CFU/mL reduced fruit weight loss to 17.50%, compared with 35.85% in the negative control. These findings indicate that oil palm rhizosphere bacteria have potential as biological control agents in integrated pest and disease management and as an environmentally friendly biofungicide.</dc:description>
	<dc:publisher xml:lang="en-US">Department of Agribusiness, Halu Oleo University  Jointly with  Perhimpunan Ekonomi Pertanian Indonesia - Indonesian Society of Agricultural Economics (PERHEPI/ISAE)</dc:publisher>
	<dc:date>2026-05-19</dc:date>
	<dc:type>info:eu-repo/semantics/article</dc:type>
	<dc:type>info:eu-repo/semantics/publishedVersion</dc:type>
	<dc:type xml:lang="en-US">Peer-reviewed Article</dc:type>
	<dc:format>application/pdf</dc:format>
	<dc:identifier>https://ejournal.agribisnis.uho.ac.id/index.php/JIMDP/article/view/2595</dc:identifier>
	<dc:identifier>10.37149/jimdp.v11i2.2595</dc:identifier>
	<dc:source xml:lang="en-US">Jurnal Ilmiah Membangun Desa dan Pertanian; Vol. 11 No. 2 (2026); 113 - 125</dc:source>
	<dc:source>2527-2748</dc:source>
	<dc:source>10.37149/jimdp.v11i2</dc:source>
	<dc:language>eng</dc:language>
	<dc:relation>https://ejournal.agribisnis.uho.ac.id/index.php/JIMDP/article/view/2595/522</dc:relation>
	<dc:rights xml:lang="en-US">Copyright (c) 2026 Indah Maulida Salsabila</dc:rights>
	<dc:rights xml:lang="en-US">https://creativecommons.org/licenses/by-sa/4.0/</dc:rights>
</oai_dc:dc>