scholarly journals An Optimized Inoculation Method of Fusarium Wilt (Fusarium oxysporum f. Sp. cubense) Causal Agent of Banana Wilt Disease in Ethiopia

2018 ◽  
Vol 6 (2) ◽  
pp. 007-014
Author(s):  
Gabrekiristos Endriyas ◽  
◽  
Yesuf Mohammed ◽  
Ayana Getachew
Keyword(s):  
Fusarium Oxysporum ◽  
Fusarium Wilt ◽  
Wilt Disease ◽  
Causal Agent ◽  
Inoculation Method ◽  
Banana Wilt ◽  
Banana Wilt Disease

scholarly journals Uji masa simpan pelet Trichoderma harzianum dan kemampuannya dalam menghambat perkembangan penyakit Layu Fusarium pada bibit tomat.

2018 ◽  
Vol 3 (2) ◽  
pp. 117-127
Author(s):  
Rizka Musfirah ◽  
Rina Sriwati ◽  
Tjut Chamzurni
Keyword(s):  
Vitamin A ◽  
Shelf Life ◽  
Fusarium Oxysporum ◽  
Solanum Lycopersicum ◽  
Plant Height ◽  
Incubation Period ◽  
Fusarium Wilt ◽  
Trichoderma Harzianum ◽  
Wilt Disease ◽  
Damping Off

Abstrak. Tomat (Solanum lycopersicum) merupakan salah satu komoditas pertanian yang ditanam secara luas di seluruh dunia, termasuk di Indonesia, karena memiliki rasa yang khas dan enak, juga memiliki nilai gizi seperti sumber vitamin A dan C yang sangat baik. Produksi tomat mengalami penurunan setiap tahun, salah satunya diakibatkan oleh organisme penganggu tanaman (OPT) yaitu patogen Fusarium oxysporum sehingga perlu dilakukan pengendalian hayati yaitu menggunakan Trichoderma harzianum dalam bentuk formulasi pelet yang praktis, efektif, dan efesien. Penelitian ini menggunakan Rancangan Acak Lengkap (RAL) non faktorial yang terdiri dari 6 perlakuan dengan 3 ulangan, setiap perlakuan terdiri dari 10 unit bibit tomat. Penelitian ini terdiri dari 6 perlakuan yaitu perlakuan A (masa simpan pelet T. harzianum  4 minggu), B (masa simpan pelet T. harzianum 3 minggu), C (masa simpan pelet T. harzianum 2 minggu), D (masa simpan pelet T. harzianum 1 minggu), E (masa simpan pelet T. harzianum 0 minggu), F (tanpa perlakuan pelet T. harzianum). Peubah yang diamati yaitu pre-emergence damping off, post-emergence damping off, masa inkubasi, persentase tanaman layu, tinggi tanaman, dan jumlah daun. Hasil penelitian menunjukkan bahwa pelet T. harzianum yang disimpan 4 minggu efektif dalam menghambat perkembangan penyakit layu fusarium seperti menunda masa inkubasi sampai 7 HSI, menekan pre-emergence damping off sampai 90%, post-emergence damping off 92,95%, serta mampu meningkatkan tinggi tanaman sampai 19,63 cm dan meningkatkan jumlah daun rata-rata 7 helai pada 35 HSI. (Storing Period of Trichoderma harzianum Pellets and its ability to Inhibit the development of Fusarium Wilt Disease on Tomato Seeds)Abstract. Tomato (Solanum lycopersicum) is one of the most widely grown commodities in the world, including Indonesia. It has a distinctively good taste and many nutritional value such as vitamin A and C. However, tomato production has decreased every year. One of the main cause is the attacks by pathogens, named Fusarium oxysporum. A Biological control is necessary and the use of Trichoderma harzianum in the form of pellets is recommended because of its effectiveness, efficiency and practical use. This research used a Completely Randomized Design (RAL) non-factorial consisted of 6 treatments with 3 replications, each treatment consisted of 10 units of tomato seedlings. The 6 treatments are named as treatment A (T. harzianum pellet saving 4 weeks), B (T. harzianum pellet saving period 3 weeks), C (shelf life of 2 weeks T. harzianum pellet), D (shelf life of pellet T harzianum 1 week), E (shelf life of pellet T. harzianum 0 weeks), and F (without T. harzianum pellet treatment). The variables observed in this study are pre-emergence damping off, post-emergence damping off, incubation period, the percentage of wilted plants, plant height, and the number of leaves. The results showed that pellets of T. harzianum stored 4 weeks effectively inhibiting the development of fusarium wilt disease such as delaying incubation period up to 7 HSI (Days After Incubation), suppressing the pre-emergence damping off up to 90% and post-emergence damping off to 92.95%, also able to increase the plant height up to 19.63 cm and increase the average leaf number of 7 strands at 35 HSI.

scholarly journals EVALUASI KETAHANAN AKSESI KENAF (Hibiscus cannabinus L.) TERHADAP PENYAKIT LAYU Fusarium oxysporum SCHLECT

2020 ◽  
Vol 6 (2) ◽  
pp. 29
Author(s):  
GEMBONG DALMADIYO ◽  
CECE SUHARA ◽  
SUPRIYONO SUPRIYONO ◽  
SUDJINDRO SUDJINDRO
Keyword(s):  
Fusarium Oxysporum ◽  
Fusarium Wilt ◽  
Wilt Disease ◽  
Hibiscus Cannabinus ◽  
Resistant Variety ◽  
Fusarium Wilt Disease ◽  
Screen House

<p><strong>Evaluation on the resistance of kenaf accessions (Hibis¬ cus cannabinus /..) to Fusarium oxysporum Schlect</strong></p><p>Resistant variety is one of the most important components controlling of fusarium wilt disease on kenaf caused by Fusarium oxysporum Schlect. To ind out resistant variety an evaluation on kenaf accessions was conducted in the laboratory and screen house of Phytopathology, RITFC, Malang in June-December 1997. The results of the selection on 77 accessions showed that 41 accessions were highly resistant, 1 2 accessions were resistant, 7 accessions were moderate, 12 accessions were susceptible, and 5 accessions were highly susceptible Three resistant and highly resistant accessions were namely 85-9-73, DS/005 H, and FJ/004 He could inhibit F. oxysporum growth about 23.40- 32.43 mm and its discolorisation about 0.0-13.4%.</p>

scholarly journals Seleksi Bakteri Antagonis untuk Mengendalikan Layu Fusarium pada Tanaman Phalaenopsis

2013 ◽  
Vol 22 (3) ◽  
pp. 276 ◽  
Author(s):  
Ika Djatnika
Keyword(s):  
Fusarium Oxysporum ◽  
Fusarium Wilt ◽  
Wilt Disease ◽  
Antagonistic Bacteria ◽  
Plant Research Institute ◽  
Fusarium Spp ◽  
Human Environment ◽  
Bacterial Antagonists ◽  
Important Disease ◽  
Selection Of

<p>ABSTRAK. Layu Fusarium merupakan penyakit penting yang menjadi kendala dalam memproduksi tanaman anggrek. Untuk mengendalikannya,  petani masih menggunakan fungsida. Tanaman anggrek kerap ditampilkan sebagai hiasan yang dekat dengan lingkungan manusia, maka penggunaan pestisida perlu diperhatikan. Oleh karena itu sangat penting dicari cara pengendalian lainnya yang aman terhadap lingkungan, antara lain dengan  pengendalian hayati. Tujuan penelitian ialah mendapatkan isolat bakteri antagonis yang dapat mengendalikan layu Fusarium pada tanaman Phalaenopsis. Percobaan dilakukan di Laboratorium dan Rumah Kasa Balai Penelitian Tanaman Hias Segunung (1100 m dpl.) serta untuk  mikrob diisolasi dari lokasi tanaman hortikultura di Jawa Barat dan DKI Jakarta, mulai Bulan Januari sampai dengan Desember 2010. Penelitian meliputi isolasi Fusarium spp. sebagai patogen pada tanaman anggrek di beberapa lokasi, isolasi bakteri antagonis, uji kemangkusan bakteri terhadap pertumbuhan Fusarium spp. di laboratorium, dan uji kemangkusan bakteri antagonis terhadap layu Fusarium di rumah kasa. Hasil penelitian menunjukkan bahwa penyebab layu Fusarium pada tanaman Phalaenopsis ialah Fusarium oxysporum. Dari 154 isolat bakteri yang diisolasi dari lapangan, hanya ada tiga  isolat yaitu nomor B23, B 26, dan B37 yang dapat menekan pertumbuhan F. oxysporum pada media PDA. Sampai dengan pengamatan minggu ke-10 setelah inokulasi, ketiga bakteri tersebut masing-masing menekan jumlah tanaman yang terserang layu Fusarium, yaitu sebesar 46,9; 48,9; dan 65,3%, dan masing-masing menekan intensitas penyakit layu 50,5; 43,9; dan 55,1%.</p><p>ABSTRACT. Djatnika, I 2012. Selection of Antagonistic Bacteria for Controlling of Fusarium Wilt on Phalaenopsis Plants. Fusarium wilt is an important disease as constraint on production of orchid plants. The control of Fusarium wilt of orchids with fungicides often use by farmers. Orchid plants are often displayed as a decoration which is close to the human environment, so the application of pesticides have to get attention. It is therefore necessary to find another method that is safe for environments, such as using of biological control. The purpose of the study was to get isolates of  bacterial antagonists for controlling of Fusarium wilt of Phalaenopsis plants. The experiment was conducted at Laboratory and Screenhouse of Indonesian Ornamental Plant Research Institute, Segunung (1100 m asl.) and the microbes were isolated from horticultural area in West Java and DKI Jakarta since January until December 2010. The research comprised of isolation of Fusarium spp. from orchid plants in some location, isolation of bacterial antagonists, the effectiveness of the bacteria to suppress Fusarium spp. growth in laboratory, and the effectiveness of the bacteria to control Fusarium wilt on Phalaenopsis plants in the screenhouse. The results showed that the causal Fusarium wilt of Phalaenopsis plants was identified as Fusarium oxysporum. Three of 154 isolates of bacteria, i.e. isolates number of B23, B26, and B37, could suppress of F. oxysporum growth on PDA media. Observation up to 10 weeks after inoculation, the three bacteria could reduce the number of  plants attacked by Fusarium wilt , which were 46.9; 48.9; and  65.3% respectively, and each of them suppress wilt disease intensity 50.5, 43.9, and 55.1% respectively. <br /><br /></p>

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