Update Artikelilmiah: 14762

GILANG VAZA BENATAR

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Abstrak (Bhs. Indonesia)

Penelitian ini bertujuan untuk menguji penerapan metabolit sekunder dua isolat Trichoderma sp. untuk mengendalikan penyakit budok serta pengaruhnya terhadap pertumbuhan dan hasil tanaman nilam di lapangan. Penelitian ini telah dilaksanakan di Laboratorium Perlindungan Tanaman Fakultas Pertanian, Universitas Jenderal Soedirman, Purwokerto, dan lahan petani di Desa Banteran, Kecamatan Sumbang, Kabupaten Banyumas, mulai dari September 2015 sampai Pebruari 2016. Penelitian ini menggunakan Rancangan Acak Kelompok yaitu dengan 5 perlakuan dan 6 ulangan. Perlakuan terdiri atas kontrol, metabolit sekunder Trichoderma sp. isolat bawang merah, isolat jahe, gabungan isolat  bawang merah dan jahe, serta fungisida (berbahan aktif benomil 0,1%). Variabel yang diamati yaitu masa inkubasi, intensitas penyakit, tinggi tanaman, jumlah daun, bobot terna segar dan kering, panjang akar, bobot akar segar dan kering, serta analisis jaringan. Hasil penelitian menunjukkan bahwa penerapan metabolit sekunder Trichoderma sp. isolat bawang merah dan jahe baik secara tunggal maupun gabungan berpotensi menunda masa inkubasi 9,9%-14,5%, menekan intensitas penyakit budok 41,7%-50%,  menambah panjang akar 25,2-28,1%, bobot akar segar 53,1%-65,3%, bobot akar kering 56,5-65,2%, tinggi tanaman 68,3-103,6%, jumlah daun 72,3-83,22%, hasil terna segar 111,7-146,3%, menekan kehilangan hasil terna segar 85,1-100%, dan meningkatkan senyawa fenol.

Abtrak (Bhs. Inggris)

This research aimed to application test of secondary metabolites ability of two Trichoderma sp. isolates toward wart disease and  its influence on the growth and yield of pathouli in the field. This research was conducted at the Laboratory of Plant Protection, Faculty of Agriculture, Jenderal Soedirman University, Purwokerto, and field at Banteran Village, Sumbang Subdistrict, Banyumas Regency, from September 2015 to February 2016. Randomized block design  was used with 5 treatments and 6 replicates. The treatments were control, secondary metabolite of Trichoderma sp. shallot isolate, ginger isolate, combine disolates of shallot and ginger, and fungicide (with active ingredient of 0,1% benomyl). Variables observed were incubation period, intensity of disease, plant height,  number of leaves, weight of fresh and dry herbs, root length, weight of fresh and dry root, and tissue analysis. The research hresult indicated the treatment of secondary metabolites of Trichoderma sp. of onion and ginger isolates either singly or in combination was  potential to delay the incubation period of 9.9-14.5%, reduce the intensity of  disease of 41.7-50%, increase root length of 25.2-28.1%, weight of  fresh root of 53.1- 65.3%,  weight of dry root of 56,5- 65.2%, plant height of  68,3-103.6%, number of leaves of 72,3-83.22%, yield of fresh herb  of 111.7-146.3%, decrease yield of loss of fresh herbs of 85.1-100%, and increase phenol compounds.

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