PENGUJIAN DAYA ANTAGONISME DAN EFEKTIFITAS KOMPOS SEBAGAI MEDIUM AKTIVASI PERTUMBUHAN JAMUR ANTAGONIS Trichoderma spp. dan Gliocladium spp.DALAM PENGENDALIAN Sclerotium rolfsii PADA KACANG TANAH

Nurbailis , Nurbailis (2010) PENGUJIAN DAYA ANTAGONISME DAN EFEKTIFITAS KOMPOS SEBAGAI MEDIUM AKTIVASI PERTUMBUHAN JAMUR ANTAGONIS Trichoderma spp. dan Gliocladium spp.DALAM PENGENDALIAN Sclerotium rolfsii PADA KACANG TANAH. Stigma, 8 (2). ISSN 0853-3776

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Abstract

The otrjective of the experiment was to determine antago- nism mechanism of Trichoderma spp. znd Gliocladium spp. to Sclerotium rolfsii and effective compost dosage in acti- vating antagonist growth for controling Sclerotium rolfsii caused stem rot on peanut.The experiment consisted of two steps : in laboratory and in screen house. In labora- tory test, treatments were amanged in Completely Randomized Design with four treatments and fhree repli- cations. The treatrnents were Sclerotium rolfsii grown in the same petridish with : A. Trichederma sp.l,B). Tricho- derma sp.2, C) Gliocladium sp. I and D) Gliocladium sp. 2" Variables observed were mechanism potential of each antagonistic fungi, and antagonism mechanism. In thc screen house test, treatments were arranged factorially in Randomized Block Design with two factors. A) compost dosage (0, 10, 15, 20 ton/ha) and B) kinds of antagonistic fungi (without antagonist, Trichaclermil sp.2 and Gliocla- dium sp. 2) . Every treatment consisted of tree rcplica- tions. Variables observed were ; disease severify and pod dry rveight. The result of the experirnent were ; 1) antago- nisn mechanism of Trichoderma and Glioclatlium spp. to Scteroium rolfsii were hyperparasite, antibiosis and com- petition, 2) Trichoderma and Gtiocladium spp, have equal ability to reduce Sclerotium rolfsii growfh and 3) using of 15 and 20 ton compost/ha to activate Trichoderma sp.2 and Glioclaclium sp.2 can reduce disease severity and increace pod dry weight.

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