Update Artikelilmiah: 7483

DESSY CAFRINA NATHALYA SIBURIAN

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Abstrak (Bhs. Indonesia)

ABSTRAK
Penelitian bertujuan untuk mengetahui: 1). Mekanisme antagonis jamur T. viride terhadap  Fusarium oxysporum f. sp. lycopersici, 2). kemampuan T. viride dalam meningkatkan pertumbuhan tanaman tomat. Penelitian ini dilaksanakan sejak bulan Maret 2013 sampai Oktober 2013, di Laboratorium Perlindungan Tanaman, Universitas Jenderal Soedirman, Purwokerto dan di Lahan Pekarangan di Desa Sokaraja Tengah, Banyumas. Penelitian dilaksanakan dalam 2 tahap, yaitu: in vitro dan in planta. Penelitian in vitro menggunakan metode deskriptif dan in planta menggunakan Rancangan Acak Kelompok (RAK) yang terdiri atas 7 perlakuan dengan 4 ulangan.Perlakuan yang diuji terdiri atas kontrol, aplikasi air, aplikasi fungisida dan aplikasi T. viride (5 hari sebelum tanam, saat tanam, dan 5 hari setelah tanam). Fol diinokulasikan bersamaan saat tanam.Variabel yang diamati dalam penelitian ini adalah : mekanisme penghambatan, masa inkubasi, intensitas penyakit, kepadatan akhir, tinggi tanaman, jumlah daun, bobot segar tajuk, bobot kering tajuk, bobot segar akar, dan panjang akar. Secara in vitro T. viride mampu menekan  pertumbuhan Fol sebesar 76,67%, melalui mekanisme hiperparasit. Pemberian T. viride 5 hari sebelum tanam, 5 hari setelah tanam dan pada saat tanam  mampu memperlambat masa inkubasi selama 20,75 hari dan menekan intensitas penyakit sebesar 93,27%. Pemberian T. viride mampu meningkatkan pertumbuhan  pada tanaman tomat sebesar 32,68%.

Abtrak (Bhs. Inggris)

ABSTRACT
The aims of this research were: 1). Knowing the antagonist mechanism of T. viride to Fusarium oxysporum f. sp. lycopersici, 2). Knowing the ability of T. viride  in increasing of the growth of tomato plant. This research was conducted from March 2013 to October 2013, in Laboratorium of Plant Protection, Jenderal Soedirman University, Purwokerto and in the garden at central Sokaraja, Banyumas. This research was conducted in 2 steps, which were: in vitro and in planta. In vitro research used descriptive method and in planta used RBD (Randomized Block Design)which consisted of 7 treatments and 4 repetitions. The treatment consisted of control, water application, fungicide application, T. viride application (5 days before planting, at planting and 5 days after planting). Fol was inoculated at planting. The variables observed were: inhibitory mechanism,  incubation period, disease intensity, final konidia density, plant height, number of leaves, canopy fresh weight, canopy dry weight, root fresh weight, and root length. In the In vitro tested T. viride was able to suppress Fol growth as 76,67%, through hiperparasit mechanism. Application of T. viride 5 days before planting, 5 days after planting and at planting could slow the incubation period for 20, 75 days and suppress disease intensity up to 93,27%. application of T. viride was able to increase the growth of tomato plant up to 32,68%.

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