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All Journal Jurnal Fitopatologi Indonesia JURNAL ILMU PERTANIAN Biology, Medicine, & Natural Product Chemistry 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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Induction of Resistance to Larvae Crocidolomia pavonana F. (Lepidoptera: Crambidae) using Rhizobacteria to the Cabbage Indri Yanil Vajri; Trizelia; Haliatur Rahma
Andalasian International Journal of Entomology Vol. 2 No. 1 (2024)
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/aijent.2.1.15-23.2024

Abstract

Crocidolomia pavonana is a significant pest on cabbage that reduces the quality and quantity of cabbage. Utilizing microorganisms such as rhizobacteria is an alternative environmentally friendly control that can potentially suppress the development of this pest. The study aimed to obtain rhizobacteria isolates capable of colonizing cabbage tissue and inducing plant resistance to C. pavonana larvae. The research was conducted at the Biological Control Laboratory and Greenhouse, Faculty of Agriculture, Universitas Andalas, Padang. The study used a Completely Randomized Design (CRD) with ten treatments and five replications. The treatment consisted of rhizobacteria isolates, including Bacillus thuringiensis, Bacillus subtilis, Serratia marcescens, Stenotrophomonas maltophilia, as well as a negative control (aquadest sterile) and a positive control (Cypermethrin insecticide). The test was carried out by soaking the seeds in a suspension containing rhizobacteria with a population density of 10⁸ cells/ml. The variables observed were larval mortality, pupa and imago formation percentage, and increased salicylic acid production. The data were analyzed using variance and continued with the LSD further test at the 5% level. The results showed that all rhizobacteria isolates colonized into cabbage plant tissue could kill C. pavonana larvae and inhibit these insects' biological development. B. thuringiensis KJKB7.3 showed better results with the highest mortality value (62.67%). Soaking cabbage seeds with rhizobacteria can increase the content of salicylic acid. Based on this research, the rhizobacteria used in the research have the potential to be developed as biological agents to control C. pavonana.
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 - IN PROGRESS
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.
Co-Authors . Giyanto . Gusmini . Reflinaldon Afrima Sari Agustian Agustian Aprizal Zainal Armansyah Armansyah Arneti Arneti Butar-Butar, Alfons Dwi Putra Darnetty Darnetty Darnetty, Darnetty Dede Suhendra Elfitri Syahdia Eri Sulyanti Fajar Akbar Giyanto . Hasmiandy Hamid Ika Listiana Indra Dwipa Indri Yanil Vajri Indri Yanil Vajri Indri Yanil Vajri Jhon Nefri Jumsu Trisno Martinius Martinius Martinius Martinius Martinius Martinius Martinius Meity S Sinaga Meity S Sinaga, Meity S Memen Suharman, Memen Memen Surahman MY SYAHRAWATI Napitupulu, Beatrix Sofranes Nasution, Fauzan Abid Hanif Nasution, Lita 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 Retna Astuti Kuswardani Ridho, Muhammad Arif Rika Hariance Rita Noveriza Rita Noveriza Rusdi Rusli Ryan Dwi Setyawan Ryan Hidayat Saipul Sihotang Sandra Desiska Saragih, Magdalena Sri Wahyuni Sri Wahyuni Sri Wahyuni Sri Yuliani Sri Yuliani Sulyanti, Eri Suryati . SYAHRAWATI, MY Tre Julia Nasral Trizelia . UJANG KHAIRUL Wahyuni Eka Putri Winarto Winarto Winarto Winarto Yaherwandi Yenny Liswarni Yulmira Yanti Yunisman Yunisman Yusniwati Yusniwati Zurai Resti