PENGGUNAAN JAMUR ANTAGONIS Trichoderma sp. dan Gliocladium sp. UNTUK MENGENDALIKAN PENYAKIT LAYU FUSARIUM PADA TANAMAN BAWANG MERAH (Allium ascalonicum L.)

Arie Ramadhina Arie Ramadhina, Lisnawita Lisnawita, Lahmuddin Lubis

Abstract


The use of antagonism fungus of Trichoderma sp. and Gliocladium sp. for controlling wilt
(Fusarium oxysporum) in red onion plants. The aim of the research was to know the effectiviness of
antagonism fungus of Trichoderma sp. and Gliocladium sp. in controlling wilt in red onion plants.
The research used non-factorial RAK (random group design) with eight treatments: control, 10
grams of F. oxysporum, 12 grams of Trichoderma sp., 18 grams of Trichoderma sp., 24 grams of
Trichoderma sp., and 12 grams of Gliocladium sp., 18 grams of Gliocladium sp., 24 grams of
Gliocladium sp., and three repetitions. The result showed that the worst-highest disease was in
control with 10 grams of F. oxysporum (2.60%) and the lowest disease was in control, 18 grams of
Trichoderma sp., 24 grams of Trichoderma sp., 18 grams of Gliocladium sp., and 24 grams of
Gliocladium sp. (0.71%). The accident of the highest disease was in 10 grams of F. oxysporum
(5.01%) and the lowest was in control, 18 grams of Trichoderma sp., 24 grams of Trichoderma sp.,
18 grams of Gliocladium sp., and 24 grams of Gliocladium sp. (0.71%). The largest number of
leaves was in 24 grams of Trichoderma sp. (36 leaves), and the smallest was in 10 grams of F.
oxysporum (29 leaves). The highest plants was in 24 grams of Gliocladium sp. (40.20 cm) and the
lowest in 10 grams of F. oxysporum (37.26 cm). The largest number of F. oxysporum colonies in 10
grams of F. oxysporum (8.86%). The highest production was in 24 grams of Trichoderma sp. (2.34
tons/ha) and the lowest in 10 grams of F. oxysporum (1.56 tons/ha). The test of antagonism fungus
of Trichoderma sp. and Gliocladium sp. on F. oxysporum indicates that the growth of both types of
antagonism is faster so that F. oxysporum tends to keep away from antagonism in the medium of the
laboratory.
Keywords: Trichoderma sp., Gliocladium sp., Fusarium oxysporum, antagonism

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Program studi Agroteknologi

Fakultas Pertanian

Jl. Prof. A. Sofyan no. 3

Kampus Universitas Sumatera Utara

Padang Bulan- 20155

Medan-Sumatera Utara

E ISSN (2337-6597)