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All Journal Innofarm Jurnal Inovasi Pertanian Jurnal Pertanian Terpadu
Ankardiansyah Pandu Pradana
Program Studi Proteksi Tanaman, Fakultas Pertanian, Universitas Jember
Agriculture, Biological Sciences & Forestry Earth & Planetary Sciences Environmental Science Social Sciences

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Eksplorasi dan Karakterisasi Bakteri Endofit Pada Tanaman Gambir (Uncaria gambir Roxb.) di Kabupaten Lima Puluh Kota Diana Putri; Ankardiansyah Pandu Pradana; Arifda Ayu Swastini Waruwu
Jurnal Pertanian Terpadu Vol 14 No 1 (2026): Jurnal Pertanian Terpadu Jilid XIV Nomor 1 Juni 2026
Publisher : Sekolah Tinggi Pertanian Kutai Timur

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36084/jpt..v14i1.741

Abstract

Bakteri endofit dapat ditemukan dari semua jaringan tanaman tetapi tidak menyebabkan gangguan atau kerusakan pada tanaman tersebut. Tujuan penelitian untuk mengeksplorasi dan mengkarakterisasi morfologi bakteri endofit dari akar tanaman gambir. Sampel akar gambir diambil dari Sumatera Barat, Kabupaten Lima Puluh Kota dari 5 titik Lokasi yang berbeda. Isolasi dilakukan untuk memperoleh isolat tunggal bakteri endofit. Karakterisasi meliputi pengamatan morfologi koloni, uji gram dengan KOH 3% serta uji patogenesitas pada daun tembakau. Hasil isolasi diperoleh 23 isolat tunggal bakteri endofit, dimana dari pengamatan morfologi didominasi oleh bentuk koloni yang tidak beraturan, permukaan yang halus tidak mengkilap, elevasi datar dan warna koloni putih susu. Dari 23 isolat yang diuji gram dengan KOH 3%, sebanyak 11 isolat tergolong gram negatif dan 12 isolat lainnya kelompok gram positif. Uji patogenesitas pada daun tembakau diperoleh hasil sebanyak 7 isolat menunjukkan reaksi hipersensitif yang ditandai dengan gejala nekrosis, sedangkan 16 isolat lainnya tidak menunjukkan gejala nekrosisi pada daun tembakau
INSIDENSI DAN INTENSITAS BEBERAPA PENYAKIT UTAMA TANAMAN GAMBIR DI KABUPATEN LIMA PULUH KOTA Diana Putri; Arifda Ayu Swastini Waruwu; Ankardiansyah Pandu Pradana
Innofarm : Jurnal Inovasi Petanian Vol 27 No 2 (2025): JURNAL INNOFARM : Jurnal Inovasi Petanian
Publisher : FAKULTAS PERTANIAN UNIVERSITAS SLAMET RIYADI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33061/innofarm.v27i2.12785

Abstract

Gambir is one of Indonesia’s superior commodities in the international market. However, problems that causes a decrease in the quality and productivity of gambir plants is disease attacks. The percentage and intensity of disease attacks on gambir plants in Lima Puluh Kota Regency have never been reported. This studi aimed termine the level of attack occurrence and intensity of diseases that attack gambir plants as basic information related to plant health status in an effort to manage diseases effectively. The study was conducted in three gambir land locations, using a survey method with Simple Random Sampling. Direct observation includes symptoms of attack, percentage and intensity of disease. The results of observations on land 1 and 2 found five main diseases namely red rust, brown spots, black spots, black mosaic and chlorosis, while on land 3 brown spot disease, dieback and black mosaic were found. The highest incidence of disease on land 1 was red rust which reached 100%, on land 2 red rust and brown spots were 100%, and on land 3 brown spot disease was 96%. The highest intensity of disease attack was red rust reaching 82% which was included in the category of very severe attacks. The high incidence and intensity of attacks of this disease are influenced by the age of the plants and the cultivation techniques used by gambir farmers, such as the lack of weed and disease control and fertilization. Keywords: Cultivation, disease intensity, gambir, red rust
Co-Authors Arifda Ayu Swastini Waruwu Putri Diana