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All Journal BIOTROPIA - The Southeast Asian Journal of Tropical Biology Jurnal Penelitian Hasil Hutan
Erdy Santoso
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Decision Sciences, Operations Research & Management Immunology & microbiology Materials Science & Nanotechnology Veterinary

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PEMANFAATAN KOMPOS KULIT KAYU MANGIUM UNTUK MEDIA PERTUMBUHAN CENDAWAN MIKORIZA ARBUSKULA DAN BIBIT Acacia mangium Willd. Sihati Suprapti; Erdy Santoso; Djarwanto; Maman Turjaman
Jurnal Penelitian Hasil Hutan Vol. 30 No. 2 (2012): Jurnal Penelitian Hasil Hutan
Publisher : BRIN Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20886/jphh.2012.30.2.114-123

Abstract

Sterilized and unsterilized manginm bark which added with activators and composted for 30 days were used at a growth medium for mycorrhizal fungi and Acacia mangium seedlings. Degradation rate of the bark wus evaluated based on the changing content of organic carbon, total nitrogen, nutrient content, and its cation exchange capacity (CEC) Results showed that activators added on the compasting process of manpium bark reduced C/N ratio to 21.90 in sterilized bark and 25.30 in the ansterilized, respectively. The addition of actors tended to increase the nutrient content Le. N 0.82 -1.09%, P 0.22 -0.36%, and K. 0.36 -1.12%, and increase the value of CEC ints 31.3 to 32.7 me/100g Mycurrhizal colonization on medium means that composted mangium bark can be used both as growth and mycorrbizal carrier media. A high percentage of mycorrhizal colony was found in the medium made of sterilized mangium bark added with activators inoculated with Glomus sp. ir. 45%. The growth rate of A. mangium seedling on the mediume made of sterilized mangium bark added with activator tended to be bigher than that of the unsterilized bark. The highest growth was found on medium inoculated with Gigaspora sp., abile the largest stem diameter occurred on the medium inoculated with Glomus sp.
ANATOMICAL CHARACTERS OF Aquilaria microcarpa INTERACTING WITH Fusarium sp. Rima HS Siburian; Ulfah J. Siregar; Iskandar Z. Siregar; Erdy Santoso; Imam Wahyudi
BIOTROPIA Vol. 20 No. 2 (2013): BIOTROPIA Vol. 20 No. 2 December 2013
Publisher : SEAMEO BIOTROP

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1409.897 KB) | DOI: 10.11598/btb.2013.20.2.258

Abstract

Aquilaria microcarpa is one of agarwood-producing plants, Interaction of pathogenic fungi may cause physiological changes in plants that have an impact on visual changes in cells, tissues or organs of plants. This study aims to determine differences in the anatomical characters of Aquilaria microcarpa that have been inoculated with Fusarium sp. Observations of anatomical characters showed that traits of inoculated and un-inoculated Aquilaria microcarpa in general are partly different. The difference was found in wood color, odor/aroma, the pores of wood and leather inserted visible. Chemical compounds contained in the plant interact with fusarium was Elemol, Baimuxinal, 3-phenyl-2-butanone, chromen-4-one.
Co-Authors Djarwanto Imam Wahyudi Indrawan, Imam Wahyudi ISKANDAR ZULKARNAEN SIREGAR Maman Turjaman rima siburian Sihati SUPRAPTI Ulfah J. Siregar