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All Journal Jurnal Silvikultur Tropika (JST) Jurnal Ilmu-Ilmu Kehutanan
Eti Artiningsih Octaviani
Institut Teknologi Sumatera
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Decision Sciences, Operations Research & Management Earth & Planetary Sciences Energy Environmental Science Social Sciences

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Journal : Jurnal Silvikultur Tropika (JST)

 1 
Influence of pH, Shaked Medium, and Addition of Sawdust on the Growth of Xylaria sp. Achmad .; Elis Nina Herliyana; Eti Artiningsih Octaviani
Jurnal Silvikultur Tropika Vol. 4 No. 2 (2013): Jurnal Silvikultur Tropika
Publisher : Departemen Silvikultur, Fakultas Kehutanan dan Lingkungan, Institut Pertanian Bogor (IPB)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/j-siltrop.4.2.%p

Abstract

Fungi is natural resources that has many potencies to be developed to fill the human’s need. One of useful fungal species is Xylaria sp. as a decomposer which play an important role in the process of returning nutrients in to the soil. This reasearch aims to examine the effect of medium pH, medium movement, and sawdust of Sengon (Falcataria molucana) & Afrika wood (Maesopsis eminii) addition in medium on the growth of Xylaria sp. Each experiment used Completely Randomized Design with 3 replications. The result showed that best Xylaria sp. colony on PDA attained at pH 8; at pH 2 the fungi did not grow. Highest mycelial dry weight of Xylaria sp. in PDB medium with pH treatment was achieved at pH 6. Highest mycelial dry weight of Xylaria sp. in PDB with shaking was achieved at a speed of 100 rpm. The addition of sawdust in MEA medium did not significantly affect the growth of mycelial diameter of Xylaria sp.Key words: africa wood, medium movement, pH, sengon, Xylaria sp
Potency of Biological Agent Trichoderma harzianum and Gliocladium sp. on Pathogenic Fungi Botryodiplodia sp. causes Dieback Disease of Jabon (Anthocephalus cadamba (Roxb.) Miq.) POTENSI Trichoderma harzianum DAN Gliocladium sp. SEBAGAI AGENS HAYATI Eti Artiningsih Octaviani; Achmad .; Elis Nina Herliyana
Jurnal Silvikultur Tropika Vol. 6 No. 1 (2015): Jurnal Silvikultur Tropika
Publisher : Departemen Silvikultur, Fakultas Kehutanan dan Lingkungan, Institut Pertanian Bogor (IPB)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/j-siltrop.6.1.%p

Abstract

Botryodiplodia sp. is causes dieback disease of jabon (Anthocephalus cadamba (Roxb.) Miq). Dieback disease causes a decrease in the quality and economic value of jabon seedlings in the nursery. Research on control of the disease is still rare. Control of the disease is divided into three ways, namely chemical, physical, and biological. One biological control can be biological agents. Biological agents are used in this study is Trichoderma harzianum and Gliocladium sp. on in vitro test. The test results showed that T. harzianum antagonism with the direct method able to inhibit the growth of Botryodiplodia sp. with the average 52.53% and 35.99% respectively on PDA and Czapex Agar, while Gliocladium sp. able to inhibit the growth of Botryodiplodia sp. Average 46.46% and 28.51% respectively on the PDA and Czapex Agar for 7 days of observation. Results of antagonist test with indirect methods showed that the filtrate of T. harzianum and Gliocladium sp. has the ability to inhibit the growth of Botryodiplodia sp. at 13.42% and 10.25% PDB media significantly different from controls. T. harzianum and Gliocladium sp. have ability to inhibit the growth of Botryodiplodia sp. greatly.Key words : Botryodiplodia sp., Gliocladium sp., in vitro test, Trichoderma harzianum
Co-Authors Achmad . Achmad . Elis Nina Herliyana