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All Journal Jurnal Fitopatologi Indonesia AGRITROPICA : Journal of Agricultural Sciences Dharma Raflesia : Jurnal Ilmiah Pengembangan dan Penerapan IPTEKS
Hamidi, Ilmi
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Agriculture, Biological Sciences & Forestry Humanities Education Medicine & Pharmacology Social Sciences Other

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Meloidogyne species, the pimple-like knot pathogen of potato tuber in three production centers in Sumatra Hamidi, Ilmi; Supramana; Mutaqin, Kikin Hamzah; Kurniawati, Fitrianingrum
Jurnal Fitopatologi Indonesia Vol. 18 No. 2 (2022): Maret 2022
Publisher : The Indonesian Phytopathological Society (Perhimpunan Fitopatologi Indonesia)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14692/jfi.18.2.66-74

Abstract

Meloidogyne species, the pimple-like knot pathogen of potato tuber in three production centers in Sumatra Nematoda puru akar (Meloidogyne spp.) merupakan penyebab ubi berbintil yang menurunkan kualitas dan kuantitas produksi kentang di wilayah Sumatra. Identifikasi spesies Meloidogyne diperlukan dalam merancang strategi pengendaliannya yang efektif. Penelitian ini bertujuan mendeteksi dan mengidentifikasi spesies Meloidogyne pada kentang secara morfologi, morfometri, dan molekuler. Sampel ubi kentang bergejala bintil, malformasi bentuk ubi, permukaan ubi tidak rata, serta permukaan ubi bergelombang dikumpulkan dari tiga sentra produksi kentang di wilayah Sumatra, yaitu Karo (Sumatra Utara), Solok (Sumatra Barat), dan Kerinci (Jambi). Ekstraksi nematoda dilakukan dengan teknik pembedahan jaringan ubi berbintil. Identifikasi morfologi dilakukan berdasarkan pola perineal nematoda betina. Pengukuran morfometri dilakukan terhadap juvenil 2 berdasarkan formula de Man. Identifikasi molekuler dilakukan dengan teknik PCR dilanjutkan dengan perunutan nukleotida dan analisis filogenetika. Tiga spesies Meloidogyne yang diidentifikasi ialah Meloidogyne arenaria, M. incognita, dan M. javanica. Amplifikasi DNA menggunakan primer spesifik CO1 berhasil mengamplifikasi pita DNA sebesar ±360 pb untuk M. arenaria, ±326 pb untuk M. incognita, dan ±170 pb untuk M. javanica. Hasil perunutan nukleotida menunjukkan bahwa isolat M. incognita asal Karo-Indonesia berkerabat sangat dekat dengan spesies sejenis dari negara Cina, Amerika Serikat, Vietnam, Inggris, Brazil, dan Afrika Selatan. M. javanica asal Solok-Indonesia berkerabat sangat dekat dengan spesies sejenis dari negara Amerika Serikat, Afrika, Cina, Jerman, dan Inggris.
Tingkat Pengetahuan Dan Keterampilan Petani Tentang Tanaman Refugia Dan Musuh Alami Hama Padi di Desa Sumber Agung, Bengkulu Utara Hamidi, Ilmi; Djamilah; Sutrawati, Mimi; Zarkani, Agustin; Sitohang, Enjelina Br
DHARMA RAFLESIA Vol 22 No 2 (2024): DESEMBER (ACCREDITED SINTA 5)
Publisher : Universitas Bengkulu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33369/dr.v22i2.38363

Abstract

Penggunaan pestisida kimia yang berlebihan dalam pengendalian hama padi di Desa Sumber Agung, Bengkulu Utara, telah menimbulkan dampak negatif terhadap lingkungan dan kesehatan. Oleh karena itu, diperlukan pendekatan ramah lingkungan, seperti pemanfaatan tanaman refugia dan musuh alami, untuk mendukung keberlanjutan pertanian padi. Program pengabdian masyarakat ini bertujuan meningkatkan pengetahuan dan keterampilan petani tentang manfaat tanaman refugia dan peran musuh alami dalam pengendalian hama. Metode kegiatan meliputi observasi, pelaksanaan pelatihan interaktif, dan evaluasi menggunakan pre-test dan post-test. Hasil menunjukkan peningkatan skor rata-rata pengetahuan petani tentang tanaman refugia dari 1,50 menjadi 3,00, peran musuh alami dari 1,70 menjadi 3,60, dan keterampilan diagnostik hama padi dari 1,70 menjadi 3,20. Pelatihan ini berhasil meningkatkan pemahaman petani terkait teknik pengelolaan hama berbasis ekologi yang mengurangi ketergantungan pada pestisida kimia. Edukasi lebih lanjut diharapkan dapat memperluas adopsi strategi pengendalian hayati untuk mendukung produktivitas dan kelestarian ekosistem pertanian di wilayah ini.
Diversity of Land Arthropods in Community Oil Palm Plantations in the Coastal Area of Bengkulu Fauzi, Ariffatchur; Zarkani, Agustin; Djamilah, Djamilah; Gustian, Deri; Hamidi, Ilmi; Ifebri, Rihan; Prastio, Turko
AGRITROPICA : Journal of Agricultural Sciences Vol. 8 No. 1 (2025)
Publisher : Badan Penerbitan Fakultas Pertanian (BPFP)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31186/j.agritropica.8.1.33-42

Abstract

Bengkulu is one of the provinces located on the island of Sumatra, boasting a significant agricultural sector. One of the leading agrarian commodities in Bengkulu Province is oil palm. Oil palm in Bengkulu is planted in coastal areas. One of the key factors supporting oil palm fruit production is a healthy soil arthropod ecosystem. Soil arthropods play an essential role in the oil palm plantation ecosystem. As organisms that live in the soil, these animals help maintain soil and plant health, improving soil structure and nutrient availability for oil palm plants. This study aims to obtain initial data on the diversity of soil arthropods and their roles in smallholder oil palm plantations on the coast of Bengkulu. This study began with sampling oil palm plantations around the coast of Bengkulu. The areas that will be used as study locations include Sungai Suci, Danau Gedang, and Pekik Nyaring. Arthropod sampling was carried out by installing pitfall traps in both areas, which were determined diagonally in a ​​200 m² area, with 20 pitfall trap units per location. Arthropod species were identified based on morphology, and the type and number of populations were recorded. The Shannon-Wiener diversity index, dominance index, and evenness index measure analysis of biodiversity data. The results of the study showed that in the majority, the diversity of soil arthropods in the three sampling areas was moderate, the dominance of arthropod types was low to moderate, and evenness was moderate to high.
Detection and Sequence Analysis of Pepper Yellow Leaf Curl Virus Isolates That Infected Chili (Capsicum annuum L.) in Bengkulu, Indonesia Gustian, Deri; Sutrawati, Mimi; Fauzi, Ariffatchur; Hamidi, Ilmi; Mengesha, Nakachew Minuye; Do, Duy-Hung; RATTANA, Nitchayamon
AGRITROPICA : Journal of Agricultural Sciences Vol. 8 No. 2 (2025)
Publisher : Badan Penerbitan Fakultas Pertanian (BPFP)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31186/j.agritropica.8.2.74-80

Abstract

Pepper yellow leaf curl Aceh virus (PepYLCAV) and pepper yellow leaf curl Indonesia virus (PepYLCIV) are begomoviruses that dominate chili cultivation in Indonesia. Characterization of these two begomoviruses is essential as basic information for the development of virus control technologies. The symptoms on chili plants indicate that PepYLCIV is more severe than PepYLCAV, with severe mosaic, curling, and yellowing, whereas PepYLCAV causes only mild mosaic and yellowing. Sequencing results also show that the nucleotides and amino acids between PepYLCAV and PepYLCIV are significantly different. This suggests that the pathogenicity of the two viruses on chili plants differs. Protein structure predictions using AlphaFold3 also show significant differences. Based on available data, control of PepYLCAV and PepYLCIV can be achieved using different approaches, as these viruses have distinct sequences that may affect their pathogenicity.
Laporan Pertama Meloidogyne incognita yang Menginfeksi Tanaman Melon (Cucumis melo L.) pada Media Cocopeat di Bengkulu, Indonesia Hamidi, Ilmi; Fauzi, Ariffatchur; Djamilah, Djamilah; Zarkani, Agustin; Prastio, Turko
AGRITROPICA : Journal of Agricultural Sciences Vol. 8 No. 2 (2025)
Publisher : Badan Penerbitan Fakultas Pertanian (BPFP)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31186/j.agritropica.8.2.95-99

Abstract

Cocopeat, a growing medium derived from coconut husk fibers, is valued for its high porosity, strong water retention, and support for healthy root development. However, its physical properties may also provide favorable conditions for plant-parasitic nematodes. This study reports, for the first time, the occurrence of Meloidogyne incognita in melon (Cucumis melo L.) cultivated in cocopeat in Bengkulu, Indonesia, and examines the susceptibility of this medium to infestation. Root samples were purposively collected from six infected plants showing stunted growth, wilting, and root galling. Adult female nematodes were extracted and identified morphologically through perineal pattern analysis. The diagnostic features, such as a tall, narrow dorsal arch, fine striae, and the absence of lateral lines, consistently matched those of M. incognita. Galls of varying sizes were observed in all samples, indicating different infection intensities. This finding suggests that the physical structure of cocopeat may facilitate nematode mobility and persistence across growth stages. The study highlights that cocopeat is not inherently nematode-free despite its agronomic advantages and should be managed through preventive strategies, including substrate sterilization, sanitation, and regular nematode monitoring.
Co-Authors Agustin Zarkani Djamilah Djamilah Djamilah, Djamilah Do, Duy-Hung Fauzi, Ariffatchur Fitrianingrum Kurniawati, Fitrianingrum Gustian, Deri Ifebri, Rihan Kikin H Mutaqin Mengesha, Nakachew Minuye Mimi Sutrawati Prastio, Turko RATTANA, Nitchayamon Sitohang, Enjelina Br Supramana