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All Journal MANAJEMEN HUTAN TROPIKA Journal of Tropical Forest Management
IGK Tapa Darma
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Agriculture, Biological Sciences & Forestry

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Budidaya Jamur Kuping (Auricularia auricula [Hook] Underw.) dalam Tegakan Hutan pada Substrat Log Kayu Afrika (Maesopsis eminii Engl.) IGK Tapa Darma
Jurnal Manajemen Hutan Tropika Vol. 6 No. 1 (2000)
Publisher : Institut Pertanian Bogor (IPB University)

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Abstract

Ear mushroom (Auricularia auricula (Hook) Underw.) were produced by cultivating the fungus on logs of kayu afrika (Maesopsis eminii Engl.). The logs of 60 cm long having a diameters of 19-25 cm were first solar dried for two months and subsequently soaked in water for three days. Thereafter, they were inoculated with the fungus by placing the inocula in the 3-4 cm deep holes made by boring the superficial part of the logs and then the inoculated logs were incubated in the room by wrapping with black polyethylene sheet for 18 days. The experiment of the cultivation was carried out with the treatment of the incubated logs as follows: i) logs placed on the forest floor and covered with black polyethylene sheets (0.3 mm thick), ii) logs were placed on the forest floor and covered with sisal sacs, iii) logs were hanged on the tree stem and covered with black polyethylene sheets, and iv) logs were hanged on the tree stem and covered with sisal sacs. Similar conditionings and treatments were also given to fresh logs (without solar drying). The experiment was also designed to find out whether cultivating the logs under laboratory conditions affect the growth and the formation as well as the development of the fruiting bodies of the fungus. Fruiting bodies were formed on dried logs 24 days after inoculation or 6 days after cultivation, whereas none was formed on fresh logs placed in the forest stand, also, fruiting bodies was not formed on all logs placed in the laboratory. There after, every 6 days, harvesting of the mushrooms could be carried out for as long as one month (5 times harvestings). The largest mushroom production proved to be on logs hanged on the tree stem and covered with the sisal sacs.
Fungi yang Berasosiasi dengan Benih Acacia crassicarpa Sesaat Setelah Panen dan Setelah Penyimpanan IGK Tapa Darma; Ari Sumrahadi
Jurnal Manajemen Hutan Tropika Vol. 7 No. 2 (2001)
Publisher : Institut Pertanian Bogor (IPB University)

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Abstract

Acacia crassicarpa is one of the forest tree species recommended for the establishment of Industrial Forest Plantations (Hutan Tanaman Industri/HTI) due to its fast growth on any soil type, and its prominent adaptability and resistance to sub-optimal field conditions, as well as to its high quality wood.  One of the problems faced is the fact that the seeds are susceptible to pathogens soon after harvesting, as well as after they are stored. The pathogens cause seed-rot or reduce the germination percentage.  The study was conducted to determine the storage fungi and their effects on the seed viability. The information gathered was expected to be useful for the development of the control method to reduce the loss due to fungal infection.  In this study, 30 seed samples of A. crassicarpa were collected soon after harvesting and another 30 seed samples after 3-month placed in Dry Cold Storage. The germination and the infection percentages of the seeds were determined by employing the blotter test method (ISTA, 1976), 7 days after storage. The experiment was carried out in five replicates.  Soon after harvesting, the fungal species associated with the seeds were Penicillium sp., Aspergillus sp., and Rhizopus sp.. Penicillium sp. was the dominant species with 40% seed infection and 73,3% seed germination. After 3-month placed in DCS, the same species were associated with the seeds and the dominant species was Rhizopus sp. with 77,3% seed infection and 60,7% seed germination.
Co-Authors Ari Sumrahadi