Uji Efektivitas Trichodermin dan Fungisida Heksakonazol dalam Menghambat Pertumbuhan Ganoderma boninense Pat. pada Tanaman Kelapa Sawit di Laboratorium

ABSTRAK

DIAN MARTHA SIHOMBING:Uji Efektivitas Trichodermin dan Fungisida
Heksakonazol dalam Menghambat Pertumbuhan Ganoderma boninense Pat.
Penyebab Penyakit busuk pangkal batang Pada Tanaman Kelapa sawit di
Laboratorium, dibimbing oleh Hasanuddin dan Maryani Cyccu Tobing.
Penggunaan toksin trichodermin untuk menghambat pertumbuhan G.boninense
penyebab penyakit busuk pangkal batang pada tanaman kelapa sawit belum
banyak diteliti. Untuk itu suatu penelitian telah dilakukan di laboratorium
Penyakit Tumbuhan Fakultas Pertanian Universitas Sumatera Utara (±25 m dpl)
mulai Desember 2014 sampai Februari 2015 menggunakan rancangan acak
lengkap (RAL) non faktorial dengan lima perlakuan dan empat ulangan.
Hasil penelitian menunjukkan bahwa trichodermin berpengaruh sangat nyata
terhadap semua parameter yang diamati. Luas pertumbuhan koloni tertinggi
55.129 cm2 terdapat pada kontrol (tanpa toksin dan tanpa fungisida) sedangkan
luas pertumbuhan koloni terendah 33.916 cm2 terdapat pada trichodermin 10-1.
Persentase percepatan tumbuh tertinggi 96.428% terdapat pada fungisida
sedangkan persentase percepatan tumbuh terendah 42.587% terdapat pada
trichodermin 10-2. Persentase penghambatan tertinggi 65.560% terdapat pada
trichodermin 10-2 sedangkan persentase penghambatan terendah 3.573% terdapat
pada fungisida. Perbandingan percepatan tumbuh tertinggi 1 cm terdapat pada

kontrol (tanpa toksin dan tanpa fungisida) sedangkan perbandingan percepatan
tumbuh terendah 0,925 cm terdapat pada trichodermin 10-1.
Kata kunci : G.boninense, Trichodermin, Heksakonazol

ABSTRACT

DIAN MARTHA SIHOMBING: Efectivity Test of Trichodermin and Heksakonazol
Fungicide to inhibit Ganoderma boninense Pat.growth causal stem rot disease on
Plant Oil Palmin Laboratory, supervised by oleh Hasanuddin dan Maryani
Cyccu Tobing.
The use of trichodermin to inhibit G. boninensegrowth causal stem rot disease on
Plant Oil Palmhave not been researched. Therefore, a research had been
conducted at Plant Pathology Laboratory, Faculty of Agriculture, University of
Sumatera Utara (± 25 m asl) start from December 2014 until February 2015
using non- factorial completely randomized design with five treatments and four
replication.
The result showed that trichodermin gave highly significantly effect for all
parameters observed. Highest fungal colony extensive 55.129 cm2 was on Control
(without toxin and without fungicide) meanwhile the lowest fungal colony
extensive 33.916 cm2 was on trichodermin 10-1. Percentage of acceleration grow

extensive 96.428% was on fungicide meanwhile the lowest percentage of
acceleration grow 42.587% was on trichodermin 10-2. Highest percentage of
inhibition 65.560% was on trichodermin 10-2 meanwhile the lowest percentage
of inhibition 3.573%. was on fungicide. Highest comparison of accelaration
grow 1 cm was on control (without toxin and without fungicide) meanwhile the
lowest comparison of accelaration grow is 0,925 cm was on trichodermin 10-1.
Keywords: G.boninense, Trichodermin, Heksakonazol