Update Artikelilmiah: 13299

SUBHAN HASAN AZIS

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Abstrak (Bhs. Indonesia)

Penelitian ini bertujuan untuk 1) Menguji kemampuan B. subtilis B298 dalam mengendalikan patogen dari tanaman cabai in vitro. dan 2) Mendapatkan formula biopestisida B. subtilis B298 terbaik untuk menekan penyakit, meningkatkan pertumbuhan dan hasil pada tanaman cabai. Penelitian dilaksanakan di Laboratorium Perlindungan Tanaman Fakultas Pertanian Universitas Jenderal Soedirman, Purwokerto dan di lahan percobaan di desa Karangwangkal, Purwokerto Utara. Penelitian dilaksanakan secara in vitro dan in planta selama 5 bulan, dari bulan Maret sampai Juli 2015. Penelitian menggunakan Rancangan Acak Kelompok (RAK) dengan 8 perlakuan dan 4 kali ulangan. Variabel yang diamati meliputi zona hambatan yang terbentuk pada uji B. subtilis terhadap jamur patogen Colletotrichum capsici, zona hambatan  yang terbentuk pada uji B. subtilis terhadap bakteri patogen Ralstonia solanacearum, masa inkubasi, intensitas penyakit, tinggi tanaman, jumlah daun, jumlah buah, bobot buah per tanaman, bobot tanaman segar, bobot tanaman kering. Hasil penelitian menunjukkan bahwa B. subtilis B298 mampu menghambat C. capsici sebesar 50% dan zona hambatan R. solanacearum sebesar 5mm in vitro. Biopestisida berbasis B. subtilis B298 formula cair dan padat berpotensi menekan penyakit, meningkatkan pertumbuhan dan hasil pada tanaman cabai.

Abtrak (Bhs. Inggris)

This research aimed to 1) test the ability of B. subtilis B298 in controlling pathogens of pepper in vitro. and 2) find the best  formula of B. subtilis B298 biopesticide to suppress disease, enhance the growth and yield in pepper. This research was conducted at the Laboratory of Plant Protection, Faculty of Agriculture, Jenderal Soedirman University, Purwokerto and at the field trials, Karangwangkal village, North Purwokerto. The experiment was conducted in vitro and in planta for 5 months, from March to July 2015. The research used Randomized Block Design (RAK) with 8 treatments and 4 replications. Variables observed included the inhibition zone formed on B. subtilis test of the fungal pathogen Colletotrichum capsici, the inhibition zone formed on B. subtilis test of pathogenic bacteria Ralstonia solanacearum, the incubation period, the intensity of the disease, plant height, number of leaves, number of fruits, fruit weight per plant, fresh plant weight, dry plants weight. The results indicated that B. subtilis B298 was able to inhibit C. capsici by 50% and inhibition zone of R. solanacearum by 5mm in vitro. Liquid and solid formula of B. subtilis B298 Biopesticides potentially suppressed disease, enhancing the growth and yield in pepper.

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