Artikel Ilmiah : A1D019018 a.n. IRWANDHI
| NIM | A1D019018 |
|---|---|
| Namamhs | IRWANDHI |
| Judul Artikel | MEKANISME ANTAGONIS BAKTERI FUNGSIONAL AGENS BIOUREA TERHADAP PERTUMBUHAN Fusarium oxysporum f.sp lycopersici in vitro |
| Abstrak (Bhs. Indonesia) | Fusarium oxysporum f.sp. lycopersici (FOL) merupakan patogen tular tanah penyebab penyakit layu fusarium dan menyebabkan kerugian 20-30% pada tanaman tomat. Alaternatif pengendalian ramah lingkungan yang dapat diterapkan yaitu pengembangan Biourea berbasis bakteri antagonis, sehingga dapat menerapkan pengendalian hayati dan Urea dalam waktu bersamaan, serta dapat meningkatkan efisiensi pemupukan. Penelitian bertujuan untuk mengetahui kemampuan antagonis bakteri fungsional dan mekanismenya terhadap pertumbuhan FOL, serta memilih isolat potensial sebagai agens pengembangan Biourea. Penelitian dilaksanakan di Laboratorium Bakteriologi dan Mikologi, Badan Riset Inovasi Nasional dan Laboratorium Perlindungan Tanaman, Fakultas Pertanian Universitas Jenderal Soedirman. Variabel penelitian berupa kemampuan bakteri memfiksasi nitrogen, produksi enzim protease, siderofor, dan HCN dianalisis secara deskriptif. Uji antagonis dan bobot miseium FOL dilakukan menggunakan Rancangan Acak Lengkap (RAL) dengan perlakuan antagonisme 6 isolat bakteri fungsional yaitu A8, C1TR7, TSB2, R11, R18, dan R20, serta K sebagai kontrol dengan ulangan sebanyak 4 kali. Hasil penelitian menunjukan bahwa 6 isolat bakteri fungsional positif memiliki kemampuan memfiksasi nitrogen, menghasilkan enzim protease, siderofor, dan HCN. Selain itu, semua perlakuan bakteri fungsional efektif mengendalikan FOL dan menurunkan bobot miselium FOL. Perlakuan R18 menghasilkan zona hambat terbesar, yaitu sebesar 55,55% dan bobot miselium sebesar 0,0417 g. Mekanisme antagonis yang dimiliki keenam isolat bakteri fungsional tersebut adalah antibiosis. |
| Abtrak (Bhs. Inggris) | Fusarium oxysporum f.sp. lycopersici (FOL) is a soil-borne pathogen that causes fusarium wilt and causes 20-30% loss in tomato plants. Environmentally friendly control alternatives that can be applied are the development of antagonistic bacteria-based Biourea, so that biological and Urea control can be applied at the same time, and can increase fertilization efficiency. The aims of this study were to determine the ability of functional bacterial antagonists and their mechanisms for FOL growth, as well as to select potential isolates as biourea development agents. The research was carried out at the Bacteriology and Mycology Laboratory, the National Innovation Research Agency and the Plant Protection Laboratory, Faculty of Agriculture, Jenderal Soedirman University. The research variables in the form of the ability of bacteria to fix nitrogen, the production of protease enzymes, siderophores, and HCN were analyzed descriptively. Antagonistic test and FOL mycelium weight were carried out using a completely randomized design (CRD) with antagonism treatment of 6 functional bacterial isolates namely A8, C1TR7, TSB2, R11, R18, and R20, and K as a control with 4 replications. The results showed that 6 positive functional bacterial isolates had the ability to fix nitrogen, produce protease enzymes, siderophores, and HCN. In addition, all functional bacterial treatments were effective in controlling FOL and reducing FOL mycelium weight. The R18 treatment produced the largest inhibition zone, which was 55.55% and a mycelium weight of 0.0417 g. The antagonistic mechanism of the six functional bacterial isolates is antibiosis. |
| Kata kunci | Antagonis, Bakteri Fungsional, Biourea, Fusarium oxysporum f.sp. lycopersici |
| Pembimbing 1 | Prof. Dr. Ir. Nur Prihatiningsih, M.S. |
| Pembimbing 2 | Dr. Silva Abraham, S.Si., M.Si. |
| Pembimbing 3 | |
| Tahun | 2023 |
| Jumlah Halaman | 12 |
| Tgl. Entri | 2023-01-27 18:59:18.214932 |