Update Artikelilmiah: 16427

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Abstrak (Bhs. Indonesia)

Penelitian ini bertujuan untuk menguji kemampuan formulasi dua isolat Bacillus sp. yaitu Bacillus sp. B42 dan Bacillus sp. B64 dalam mengendalikan penyakit layu fusarium pada tanaman tomat. Rancangan percobaan yang digunakan adalah rancangan acak kelompok (RAK) non-faktorial dengan 4 perlakuan dan 7 ulangan, perlakuan terdiri atas kontrol, Bacillus sp. B42, Bacillus sp. B64, dan fungisida binomil. Variabel yang diamati adalah komponen patosistem meliputi masa inkubasi, intensitas penyakit, laju infeksi; komponen pertumbuhan yang meliputi tinggi tanaman, jumlah daun, bobot segar total tanaman, bobot segar akar, dan bobot segar tajuk; dan kandungan senyawa fenol. Hasil penelitian menunjukkan bahwa formulasi Bacillus sp. B42 mampu menekan intensitas penyakit sebesar 39,40%, meningkatkan tinggi tanaman sebesar 38,40%, meningkatkan jumlah daun sebesar 22,13%, meningkatkan bobot basah total sebesar 42,41%, meningkatkan bobot basah tajuk sebesar 42,87%, dan meningkatkan bobot basah akar sebesar 43,72%, serta mampu meningkatkan kandungan senyawa fenol (tanin dan saponin) dalam jaringan tanaman.

Abtrak (Bhs. Inggris)

This research aimed to test the ability of the formulation of two isolates of Bacillus sp., namely Bacillus sp. B42 and Bacillus sp. B64 in controlling fusarium wilt on tomato plants. The experimental design used was a randomized block design (RAK) non-factorial with 4 treatments and 7 replications. The treatments were control, Bacillus sp. B42, Bacillus sp. B64, and fungicides binomil. The variables measured were patosistem components include the incubation period, the intensity of the disease, the rate of infection; component of growth in terms of height, leaf number, total plant fresh weight, root fresh weight, and fresh weight of the canopy; and the content of phenolic compounds. The results showed that the formulations of Bacillus sp. B42 is able to suppress the intensity of the disease amounted to 39.40%, increased plant height of 38.40%, increased the number of leaves by 22.13%, increased the total wet weight of 42.41%, increased the weight of the wet canopy of 42.87%, and increased root wet weight of 43.72%, and able to enhanced the content of phenolic compounds (tannins and saponins) in the plant tissue.

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