UJI IN VITRO BEBERAPA ISOLAT Trichoderma spp. DAN UJI EFEKTIVITAS Trichoderma harzianum SERTA BAHAN ORGANIK DALAM MENGENDALIKAN PENYAKIT BUSUK PANGKAL BATANG LADA DI LAPANGAN

ARIS NURHIDAYAT, 1114121034 (2015) UJI IN VITRO BEBERAPA ISOLAT Trichoderma spp. DAN UJI EFEKTIVITAS Trichoderma harzianum SERTA BAHAN ORGANIK DALAM MENGENDALIKAN PENYAKIT BUSUK PANGKAL BATANG LADA DI LAPANGAN. FAKULTAS PERTANIAN, UNIVERSITAS LAMPUNG.

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Abstrak

Kendala serius dalam budidaya tanaman lada adalah penyakit busuk pangkal batang lada (BPBL) yang disebabkan oleh jamur Phytophthora capsici. Penelitian ini bertujuan untuk mengetahui keefektifan isolat Trichoderma harzianum yang dikombinasikan dengan bahan organik dalam mengendalikan penyakit Busuk Pangkal Batang Lada di lapangan. Hipotesis yang diajukan dalam penelitian ini adalah (1) isolat Trichoderma sp. dapat menekan pertumbuhan Phytophthora capsici secara in vitro; (2) kemampuan Trichoderma dalam menekan pertumbuhan Phytophthora capsici berbedabeda antar-isolat; (3) kombinasi antara isolat Trichoderma sp. terpilih dan bahan organik dapat menekan perkembangan penyakit BPBL di lapangan; (4) jenis bahan organik yang berbeda mempunyai kemampuan yang berbeda secara tidak langsung dalam menekan perkembangan penyakit. Untuk tes in vitro digunakan tujuh isolat Trichoderma spp., yaitu dua isolat dari tanah kebun percobaan di Cahaya Negeri dan lima isolat dari koleksi Laboratorium Proteksi Tanaman FP UNILA. Di lapangan, perlakuan disusun dalam rancangan acak kelompok dengan sepuluh ulangan. Data hasil pengamatan dianalisis dengan sidik ragam dan perbedaan nilai tengah antarperlakuan diuji dengan uji BNT dengan taraf nyata 5%. Hasil penelitian menunjukkan isolat T3 M (Trichoderma harzianum) memiliki daya antagonis lebih tinggi dibandingkan isolat T1 M, T2 M , T1, T3, Tv dan Tk. Perlakuan jamur Trichoderma harzianum dan bahan organik tidak menurunkan keterjadian penyakit. Selain itu, perlakuan jamur Trichoderma harzianum dan bahan organik tersebut juga meningkatkan kepadatan jamur Trichoderma harzianum dalam tanah di lapangan. Kata Kunci: Bahan Organik, busuk pangkal batang lada, Phytophthora capsici, Trichoderma Abstrak Bahasa Inggris Serious problem in the crop cultivation of black pepper is foot rot caused by the fungus Phytophthora capsici. The objective of this research was to determine the effectiveness of isolates of Trichoderma harzianum combined with organic matter to controll foot rot paper disease in the field. The hypothesis of this research were (1) isolates of Trichoderma sp. can suppress the growth of Phytophthora capsici in vitro; (2) the ability of Trichoderma in suppressing the growth of Phytophthora capsici differed between isolates; (3) the combination of isolates of Trichoderma sp. and organic matter can suppress foot rot progression in the field; (4) a different type of organic matter has different capabilities indirectly to suppress progression of the disease. For in vitro test, total of seven Trichoderma isolates (two were isolates from Cahaya Negeri black pepper field and five were from cultur collection) were used in this experiment. In the field, treatments arranged in a randomized block design with ten replications. The data were analyzed by analysis of variance and differences followed by LSD test with significance level at 5%. The results showed that isolate T3 M (Trichoderma harzianum) has a higher power than isolate antagonists T2 M, T1, T3, T1 M, Tv and Tk. Treatment Trichoderma harzianum and organic matter did not decrease the occurrence of the disease. In addition, this treatment increased the density of Trichoderma harzianum in the soil in the field. Keywords: Organic matter, foot rot pepper, Phytophthora capsici, Trichoderma

Tipe Karya Ilmiah: Skripsi
Subyek: Pertanian > Budidaya tanaman
Teknologi > Teknologi lingkungan . rekayasa sanitasi
Teknologi > Teknologi lingkungan . rekayasa sanitasi
Program Studi: Fakultas Pertanian > Prodi Agroteknolgi
Depositing User: 6772365 . Digilib
Date Deposited: 27 Nov 2015 08:08
Last Modified: 27 Nov 2015 08:08
URI: http://digilib.unila.ac.id/id/eprint/14878

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