UJI EFEKTIVITAS JAMUR ANTAGONIS Trichoderma sp. dan Gliocladium sp. UNTUK MENGENDALIKAN PENYAKIT LANAS (Phytophthora nicotianae) PADA TANAMAN TEMBAKAU DELI (Nicotiana tabaccum L.)

Irma Agustina, Mukhtar Iskandar Pinem, Fatimah Zahara

Abstract


The test of the effectiviveness of Trichoderma sp. and Gliocladium sp. antagonism fungi is aimed to
control lanas disease (Phytophthora nicotianae) in Deli tobacco plants (Nicotiana tabaccum L.). The
aim of the research was to know the effectiveness of Trichoderma sp. and
Gliocladium sp.antagonism fungi in controlling lanas disease in Deli tobacco plants. The research was
conducted at Tembakau Deli Research Center of PTPN II Sampali, Medan, from May until
September, 2012. The research used non-factorial RAK (cluster random design) with ten treantments
and three repetitions: control, P.nicotianae, 5 grams of Trichoderma sp., 10 grams of Trichoderma sp.,
15 grams of Trichoderma sp., 20 grams of Trichoderma sp., 5 grams of Gliocladium sp.,
10 grams of Gliocladium sp., 15 grams of Gliocladium sp., and 20 grams of Gliocladium sp. The result
of the research showed that the percentage of the highest attack was found in the treatment of
P.nicotianae (25.00%), but there was no symptom (0,00%) in the treatments of control,
15 grams of Trichoderma sp., 20 grams of Trichoderma sp., 10 grams of Gliocladium sp.,
15 grams of Gliocladium sp., and 20 grams of Gliocladium sp. The highest plant was found in the
treatment of 20 grams of Gliocladium sp. (50,92 centimeters) and the lowest plant was found in the
treatment of P.nicotianae (31,14 centimeters). The largest number of leaves was found in treatment of
20 grams of Gliocladium sp. (20,18 leaves), and the smallest number of leaves was found in the
treatment of P.nicotianae (9,25 leaves). The result of the test of Trichoderma sp. and Gliocladium sp.
antagonism fungi on P.nicotianae indicated that the growth of both fungi had rapidly developed so that
P.nicotianae tended to get away from antagonism at the media in the laboratory.
Keywords: Trichoderma sp., Gliocladium sp., P.nicotianae, Antagonism

Full Text: PDF

Refbacks

  • There are currently no refbacks.


Creative Commons License
This work is licensed under a Creative Commons Attribution 3.0 License.

Creative Commons License Creative Common Attribution-ShareAlike 4.0 International (CC BY-SA 4.0)


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)