Penekanan hayati penyakit layu fusarium pada subang gladiol (original) (raw)
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Fusarium oxysporum merupakan salah satu jamur patogen penting penyebab penyakit layu Fusarium pada tanaman tomat. Pengendalian yang telah dilakukan, baik dengan fungisida kimia sintetis maupun varietas tahan belum memberikan hasil yang memuaskan. Pengendalian menggunakan agensia hayati merupakan pilihan yang perlu dikembangkan, sebab relatif murah dan mudah dilakukan, serta bersifat ramah lingkungan. Bakteri Bacillus sp. dan Pseudomonas sp diketahui memiliki potensi sebagai agens pengendali hayati beberapa patogen tumbuhan. Metode penelitian yang digunakan adalah percobaan dengan Rancangan Acak Lengkap (RAL) yang dilakukan di laboratorium setiap perlakuan diulang sebanyak tiga kali. Bacillus sp. strain BS 3, BS 4 dan Pseudomonas sp. strain PF 1 dan PF 3 dapat menghambat perkembangan Fusarium oxysporum berupa pembentukan zona bening yang nampak disekitar kertas saring. Hasil pengamatan menunjukkan bahwa tipe antibiosis dari Bacillus sp. strain BS 3 dan strain BS 4 adalah Fungisidal. ...
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JURNAL PROTEKSI TANAMAN TROPIKA, 2022
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Jurnal Pembangunan Dan Alam Lestari, 2013
Tujuan dari penelitian ini adalah untuk mengetahui dampak temperature dan pH pada polulasi Pseudomonas pendegradasi limbah LAS. Hasil penelitian menunjukkan bahwa isolate bakteri P2.1 dapat tumbuh maksimal pada pH 8; isolate P3.2 dan C2.1 dapat tumbuh optimal pada pH 7, sedangkan isolate C2.2 dan C2.3 dapat tumbuh optimal pada pH 5, dan isolate P3.2 dapat tumbuh optimal pada suhu 40 o C, isolate C2.1 C2.2 dan C.2.3 dapat tumbuh optimal pada temperature 30 o C. Pada penelitian ini juga terdapat isolate yang tidak terpengaruh oleh perlakuan suhu. Hal ini dimungkinkan karena variasi suhu yang digunakan masih kisaran suhu optimum untuk pertumbuhan isolate, sedangkan isolate lain menunjukkan respon pertumbuhan akibat perlakuan suhu. Beberapa isolate menunjukkan pertumbuhan yang lambat, hal ini karena suhu yang digunakan untuk perlakuan dibawah suhu minimum atau diatas suhu maksimum untuk pertumbuhan bakteri.
KEANEKARAGAMAN Fusarium sp. DI LAHAN ENDEMIS DAN SUPRESIF LAYU FUSARIUM TOMAT
Jurnal Hama dan Penyakit Tumbuhan
Peran jamur Fusarium non patogenik sangat penting dalam mengendalikan maupun mencegah serangan jamur patogen Fusarium oxysporum f. sp. lycopersici. Tujuan dari riset ini yaitu mengetahui keanekaragaman jamur Fusarium sp. di lahan endemis dan supresif serta potensi antagonismnya terhadap patogen layu fusarium. Penelitian ini dilakukan di laboratorium Jurusan Hama dan Penyakit Tumbuhan, Fakultas Pertanian, Universitas Brawijaya dan laboratorium Balai Besar Karantina Pertanian Surabaya. Metode penelitian ini menggunakan komparasi dan eksplorasi jamur Fusarium dalam rizosfer di lahan endemis layu fusarium tomat dan lahan supresif. Jamur fusarium yang ditemukan di lahan endemis terdiri dari 58 koloni dengan hasil identifikasi sebanyak 3 isolat yaitu Fusarium sp. 1, Fusarium sp. 2, Fusarium sp. 3. Sedangkan jamur fusarium yang ditemukan di lahan supresif sebanyak 11 koloni yang terdiri dari 2 isolat yaitu Fusarium sp. 4 dan Fusarium sp. 5. Nilai indeks keanekaragaman di lahan endemis (4,0...
Seleksi Ketahanan Klon-Klon Harapan Gladiol Terhadap Fusarium Oxysporum F. SP. Gladi Oli
Jurnal Hortikultura, 2005
ABSTRAK. Penelitian ini bertujuan untuk mendapatkan klon harapan gladiol yang tahan terhadap layu fusarium. Rancangan yang digunakan adalah acak kelompok pola faktorial. Faktor (1) klon-klon harapan gladiol, terdiri dari 96212/168; 96210.2/20; 96215/49; 96203.2/14; 9607.2/129; 96215/202; 96215/122; 96204/69; 96213/109; 96210.1/170; hol land merah; dan 621-1. Faktor (2) kerapatan inokulum F. oxysporum, terdiri dari 0 sel konidia/g tanah; 10 4 sel konidia/g tanah; 10 8 sel konidia/g tanah. Hasil percobaan menunjukkan bahwa gladiol dengan nomor klon 96215/49; 623-1 dan 96213/109 merupakan klon harapan gladiol yang pal ing tahan terhadap layu F. oxysporum f. sp. dan klon 9612/168 merupakan klon yang pal ing rentan. Kata kunci: Glad i o lus hybridus; Klon; Fusarium oxysporum f. sp. glad i oli; Resistensi AB STRACT. Nuryani, W., D.S. Badriah, T. Sutater, E. Silvia, and Muhidin. 2005. Re sponse of glad i o lus promis ing clones to Fusarium oxysporum f. sp. glad i oli. The aim of the ex per i ment was to ex am ine the re sis tance of glad io lus clones to fusarium wilt. Fac to rial randomized block de sign was used in the ex per i ment. The first fac tor was glad i o lus prom is ing clones, con sist of 96212/168; 96210.2/20; 96215/49; 96203.2/14; 9607.2/129; 96215/202; 96215/122; 96204/69; 96213/109; 96210.1/170; hol land merah; 621-1. The sec ond fac tor was den sity of inoculum F. oxysporum, con sist of nill conidia/g soil; 10 4 cells conidia/g soil; and 10 8 cells conidia/g soil. The re sults showed that the glad i o lus clone num ber 96215/49; 623-1 and 96213/109 were the most re sis tant to Fusarium oxysporum f. sp. glad i oli and clone num ber 9612/168 was the most susceptible.
UJI INOKULASI Fusarium sp UNTUK PRODUKSI GAHARU PADA BUDIDAYA A. Beccariana
Jurnal Sains dan Teknologi Indonesia
Gaharu (Agarwood) is one of the most valuable of non-timber forest products (NTFPs) commodities in Indonesia that has an important role in economic and income for the community surrounding forest. However, the intensive exploitation and uncontrolled harvest capacity has brought those two potential species tends to decrease, and therefore gaharu is listed in the list of the CITES’ Appendix II. One of the solutions to deal with those cases researchers have been developing gaharu plantation as well technique to produce gaharu products through inoculation. Theaim of this study was to find the effectiveness of four different Fusarium sp from different locations in Indonesia (Parung/F1, Banjarmasin/F2, Jambi/F3 and Gorontalo/F4) in order to produce gaharu. These Fusarium were inoculated to 10 year’s old of A. Beccariana at Penajam, East Kalimantan. The result show that inoculant from Gorontalo (F4) gave the best result and the highest potential to the production of gaharu compare to other...