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All Journal Jurnal Fitopatologi Indonesia Agrikultura JURNAL ILMU PERTANIAN JURNAL AGRILAND JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA JPT : JURNAL PROTEKSI TANAMAN (JOURNAL OF PLANT PROTECTION) Jurnal Hilirisasi IPTEKS (JHI) Warta Pengabdian Andalas: Jurnal Ilmiah Pengembangan Dan Penerapan Ipteks Jurnal AGRISEP: Kajian Masalah Sosial Ekonomi Pertanian dan Agribisnis Andalasian International Journal of Entomology
Haliatur Rahma, Haliatur
Universitas Andalas
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Computer Science & IT Dentistry Economics, Econometrics & Finance Engineering Environmental Science Health Professions Medicine & Pharmacology Public Health Social Sciences Veterinary Other

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Potensi Plant Growth-Promoting Bacteria Menekan Cucumber mosaic virus pada Tanaman Mentimun: The Potential of Plant Growth-Promoting Bacteria to Suppress Infection of Cucumber mosaic virus on Cucumber Plants Ridho, Muhammad Arif; Rahma, Haliatur; Martinius; Trisno, Jumsu
Jurnal Fitopatologi Indonesia Vol. 21 No. 1 (2025): Maret 2025
Publisher : The Indonesian Phytopathological Society (Perhimpunan Fitopatologi Indonesia)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14692/jfi.21.1.38-50

Abstract

The Potential of Plant Growth-Promoting Bacteria to Suppress Infection of Cucumber mosaic virus on Cucumber Plants Mosaic disease caused by Cucumber mosaic virus (CMV) is one of the main diseases of cucumber plants, and is economically important. Plant growth-promoting bacteria (PGPB) are plant root organisms currently being developed as biological agents. This research aims to obtain the best PGPB that can suppress the development of CMV in cucumber plants. This research used a randomized block design with nine treatments and five replications. The treatments consisted of several isolates of PGPB (Serratia marsescens AR1, Alcaligenes faecalis AJ14, Stenotrophomonas pavanii KJKB 5.4, Pseudomonas fluorescens LPK1–9, Bacillus cereus AJ 34, and S. maltophilia LMTSA 5.4), orthohydroxybenzoic acid (salicylic acid), positive control, and negative control. Application of PGPB was conducted through seed treatment of cucumber seeds for 15 minutes before planting. The mosaic virus was mechanically inoculated on cucumber cotyledons seven days after planting. The variables observed were the development of mosaic disease and the growth of cucumber plants. Virus detection using specific primer pair CMV-IF/CMV-IR showed that the virus that infected cucumber plants had 98.3% similarity to the CMV isolate originating from India with accession number KJ874248.1. Pseudomonas fluorescens LPK1-9 is the best bacteria for slowing the incubation period, reducing the percentage of infected leaves, and reducing the severity of mosaic disease on cucumber plants. None of tested PGPB isolates that has the potential to increase the growth of CMV-infected cucumber plants. Therefore, further studies are needed on the effectiveness of the PGPB, such as improving how PGPB is applied.
Potensi Konsorsium Rizobakteri untuk Pengendalian Penyakit Bercak Daun Bersudut (Pseudomonas syringae pv. lachrymans) serta Peningkatan Pertumbuhan dan Hasil Tanaman Mentimun (Cucumis sativus L.) Sufia, Yolanda; Rahma, Haliatur; Resti, Zurai
Agrikultura Vol 37, No 1 (2026): April, 2026
Publisher : Fakultas Pertanian Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/agrikultura.v37i1.67560

Abstract

Pseudomonas syringae pv. lachrymans (Psl) merupakan bakteri patogen penyebab penyakit bercak daun bersudut pada mentimun (Cucumis sativus L.) yang dapat menurunkan produksi secara signifikan. Salah satu alternatif pengendalian ramah lingkungan adalah melalui penggunaan konsorsium rizobakteri. Penelitian ini bertujuan untuk memperoleh konsorsium rizobakteri terbaik dalam menekan perkembangan penyakit bercak daun bersudut serta meningkatkan pertumbuhan dan hasil tanaman mentimun. Penelitian menggunakan Rancangan Acak Lengkap (RAL) dengan tujuh perlakuan, terdiri atas enam perlakuan konsorsium rizobakteri dan  kontrol. Kontrol digunakan sebagai pembanding baik untuk parameter penyakit (tanpa konsorsium, diinokulasi patogen) maupun pertumbuhan tanaman (tanpa konsorsium dan tanpa inokulasi patogen), masing-masing dengan tiga ulangan dan tiga unit percobaan. Perlakuan terdiri atas konsorsium (RKKL 1.2 + RKKL 1.3), (RKKL 1.2 + RKPAL 1.2), (RKKL 1.2 + RPKKL 1.1), (RKKL 1.3 + RPKKL 1.1), (RKPAL 1.2 + RPKKL 1.1), serta (RKKL 1.2 + RKPAL 1.2 + RPKKL 1.1). Benih mentimun direndam dalam suspensi konsorsium rizobakteri berkepadatan 10⁸ sel/ml selama 15 menit sebelum tanam. Inokulasi patogen Psl dilakukan pada tanaman berumur 15 hari setelah tanam dengan kepadatan 10⁸ sel/ml. Parameter yang diamati meliputi perkembangan penyakit (masa inkubasi, kejadian, dan keparahan penyakit), pertumbuhan (tinggi tanaman, jumlah daun, dan waktu muncul bunga pertama), serta hasil tanaman (bobot buah). Hasil penelitian menunjukkan seluruh konsorsium rizobakteri mampu menekan perkembangan penyakit dan meningkatkan pertumbuhan serta hasil mentimun. Konsorsium RKKL 1.2 + RKPAL 1.2 + RPKKL 1.1 merupakan perlakuan terbaik dengan keparahan penyakit 3,15% dengan tingkat hambat relatif penyakit 71,95%, tinggi tanaman 157,22 cm (peningkatan 15,69%), dan bobot buah 411,55 g (peningkatan 164,95%).
Co-Authors . Giyanto . Gusmini . Reflinaldon Afrima Sari Agustian Agustian Aprizal Zainal Armansyah Armansyah Arneti Arneti Darnetty Darnetty Darnetty, Darnetty Dede Suhendra Elfitri Syahdia Eri Sulyanti Fajar Akbar Giyanto . Hasmiandy Hamid Indra Dwipa Indri Yanil Vajri Indri Yanil Vajri Jhon Nefri Jumsu Trisno Liswarni, Yenny Martinius Martinius Martinius Martinius Martinius Martinius Martinius Meity S Sinaga Meity S Sinaga, Meity S Memen Suharman, Memen Memen Surahman MY SYAHRAWATI Nasution, Fauzan Abid Hanif Nefri, Jhon Noveriza Hermeria Nurbailis Nurfitri Sari Nurhaliza, Nurhaliza Nusyirwan Nusyirwan Nusyirwan Nusyirwan Nusyirwan Nusyirwan Oktaviani, Silvia Putri, Wahyuni Eka Rahma, Zola Puti Reflin Reflin Reflin Reflin Ridho, Muhammad Arif Rika Hariance Rita Noveriza Rita Noveriza Rusdi Rusli Ryan Dwi Setyawan Ryan Hidayat Sandra Desiska Sri Wahyuni Sri Wahyuni Sri Wahyuni Sri Yuliani Sri Yuliani Sufia, Yolanda Sulyanti, Eri Suryati . SYAHRAWATI, MY Tre Julia Nasral Trizelia . UJANG KHAIRUL Wahyuni Eka Putri Winarto Winarto Winarto Winarto Yaherwandi Yulmira Yanti Yunisman Yunisman Yusniwati Yusniwati Zurai Resti