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EFEKTIVITAS BEBERAPA JENIS ISOLAT SEBAGAI INOKULAN PEMBENTUK GAHARU Kusumaningsih, Karti Rahayu; Isnaeni, Rosiana
Jurnal Wana Tropika Vol 8 No 1 (2018)
Publisher : Fakultas Kehutanan Institut Pertanian STIPER Yogyakarta

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Tanaman gaharu dari genus Aquilaria memiliki nilai ekonomi tinggi karena dapat menghasilkan resin beraroma harum yang dapat dipergunakan untuk berbagai keperluan, mulai dari obat-obatan, pengharum ruaangan, minyak wangi, kosmetik, dan sebagainya. Untuk dapat menghasilkan resin gaharu maka tanaman harus terserang penyakit terlebih dahulu. Untuk memproduksi gaharu secara buatan maka perlu dilakukan penelitian tentang berbagai macam jenis isolat yang mampu menginfeksi tanaman gaharu. Tujuan penelitian ini adalah untuk mengetahui efektivitas beberapa jenis isolat sebagai inokulan pembentuk gaharu yang diukur berdasarkan kepadatan spora jamur yang dihasilkan pada masing-masing jenis isolat. Isolat yang digunakan berasal dari batang pisang, kayu sengon, kayu pinus, dan kayu gaharu yang terserang jamur. Parameter yang diamati adalah identifikasi jenis jamur dan kepadatan spora jamur (spora/ml) pada masing-masing jenis isolat. Hasil penelitian menujukkan bahwa jenis jamur yang terdapat pada isolat batang pisang adalah jamur Fusarium oxysporum, pada isolat kayu sengon adalah jamur Graphium sp., pada kayu pinus adalah jamur Curvularia sp., sedangkan pada isolat kayu gaharu adalah jamur Rhizopus oryzae. Jenis isolat tidak berpengaruh nyata terhadap kepadatan spora jamur, sehingga semua jenis isolat memungkinkan untuk digunakan sebagai inokulan pembentuk gaharu. Kata Kunci : Isolat, Inokulan, Kepadatan Spora Jamur

IDENTIFIKASI POTENSI SUMBER ISOLAT PEMBENTUK GAHARU Kusumaningsih, Karti Rahayu; Woesono, Hastanto Bowo; Hadi, Didik Surya
Jurnal Wana Tropika Vol 9 No 1 (2019)
Publisher : Fakultas Kehutanan Institut Pertanian STIPER Yogyakarta

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Right now, agarwood has very good prospect to be developed. To result agarwood resin, needs suitable inoculant that has high survival and can infect plant goodly. The purpose of this research is to identify of potency of several isolates source as agarwood inducer. This study used 3 isolates, namely Musa paradisiaca, Capsium frutescens and Pinus merkusii wood isolates which are made solid, mix and liquid inoculants. The observed parameters were identification of fungi, fungi growth, fungi spore density, and fungi attack infection length after 1 month inoculated. Results of the research showed that fungi at M. paradisiaca and C. frutescens isolates were Fusarium oxysporum, while at P. merkusii wood isolate was Ceratocystis sp. Musa paradisiaca and P. merkusii isolates had faster growth coloni than C. frutescens isolate. The highest fungi spore density resulted at M. paradisiaca isolate in mix inoculant. Three isolates had potency as agarwood inducer with 100% inoculation succcess percentage. Base on growth rapidly, spore density and easily reproduction, M. paradisiaca isolate was tend to chosen to be developed as inducer gaharu. Keywords : Identification, Isolates, Agarwood

PENGARUH KOMPOSISI BAHAN PENGENDALI TERHADAP PERTUMBUHAN JAMUR Uromycladium tepperianum PADA TEGAKAN SENGON (Falcataria mollucana) Kusumaningsih, Karti Rahayu; Bagaskara, Isnaya Fatul
Jurnal Wana Tropika Vol 9 No 2 (2019)
Publisher : Fakultas Kehutanan Institut Pertanian STIPER Yogyakarta

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One problem in Falcataria mollucana cultivation is attack of gall rust disease caused by Uromycladium tepperianum fungi. This disease attack almost all parts of tree, so can detain the growth and cause death of tree. The efforts to control this disease always be tried, but until now its result is not satisfactory. Purpose of this study is to know effect of controlling materials composition against growth of U. tepperianum fungi as cause of gall rust disease at F. mollucana. The research used completely randomized design with controlling materials composition as treatment factor, namely lime, sulphur, mix of lime and sulphur solution, and tar solution. Observed parameters were percentage of U. tepperianum weight reduction and diameter increased of F. mollucana after one month treatment. Result of the research showed that controlling materials composition gived significant effect to percentage of fungi weight reduction, but was not significant effect againts diameter increased of F. mollucana. Tar solution resulted highest percentage of fungi weight reduction than others controlling materials, with 100% score (fungi did not grow again after treatment). Keywords: Uromycladium tepperianum, gall rust disease, controlling materials composition

UJI EFEKTIVITAS FUNGISIDA NABATI SEBAGAI BAHAN PENGAWET UNTUK MENCEGAH SERANGAN JAMUR PEWARNA KAYU Kusumaningsih, Karti Rahayu
Jurnal Wana Tropika Vol 11 No 2 (2021): November
Publisher : Fakultas Kehutanan Institut Pertanian STIPER Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55180/jwt.v11i2.181

Woods which have low natural durability are easy to be attacked with wood staining fungi (blue stain) so can decrease its wood quality. Syzygium aromaticum, Melia azedarach and Piper betle contain of active components (botanical fungicide) that can be used as natural preservative to prevent staining fungi attack. The purpose of this research is to know effect of botanical fungicide species and preserved wood investigated, i.e Paraserianthes falcataria and Toona sureni on the attack intensity of wood staining fungi. Results of the research showed that interaction between botanical fungicide and wood species gived very significant effect on the attack intensity of wood staining fungi. The lowest of attack intensity was resulted on Toona sureni that had preserved by Melia azedarach leaf extract. The leaf extract of Syzygium aromaticum, Melia azedarach and Piper betle could keep Paraserianthes falcataria and Toona sureni wood against staining fungi. Toona sureni wood was more resist against wood staining fungi than Paraserianthes falcataria, it was due to higher extractive in Toona sureni than Paraserianthes falcataria. To preserve woods which had bright colour such as Paraserianthes falcataria, more suitable to use Melia azedarach leaf extract which not change wood colour. Key words: Botanical Fungicide, Preservative, Wood Staining Fungi

Analisis Vegetasi Penyusun Asmin Tropical Rain Forest Conservation 2, PT. Asmin Bara Bronang, Kapuas, Kalimantan Tengah Budi, Suwito Setyo; Prijono, Agus; Kusumaningsih, Karti Rahayu
Jurnal Wana Tropika Vol 13 No 1 (2023): Mei
Publisher : Fakultas Kehutanan Institut Pertanian STIPER Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55180/jwt.v13i1.600

Asmin Tropical Rain Forest Conservation 2 is a tropical natural forest which is a conservation area of PT Asmin Bronang Kapuas, Central Kalimantan. The designation of new areas was carried out in 2018 and there was no research in the area that required data collection on the types of constituents of the area. The purposes of this research were to determine species composition, species diversity index, species evenness index, species richness index, and species dominance index. The method used in this study was collecting data on plants in area of 54.6 hectares with a sampling intensity of 1% using the Uniform Systematic Distribution Sampling with Random Start pattern. There are 14 plots in the form of nested samples with designations for 4 levels of plants (seedlings, saplings, poles, and trees). Results of the research showed that vegetation species composition was dominated by Shorea smithiana (Mahambung) of the Dipterocarpaceae family. Shorea parvifolia (Red Meranti), Euzyderoxylon zwageri (Ulin), Shorea smithiana (Mahambung), Mezzetia parviflora (Pisang-pisang), Syzygium spp. (Jambu-jambu), and Memecylon sumatrense (Kamasulan) are the 6 species that have the best regeneration rate, which are found at all plant levels. The highest IVI was Shorea smithiana (Mahambung) at the seedling was 46.55, pole 55.68, and tree 32.02 levels. At the sapling level, the highest IVI was Baccaurea bracteata Muell (Rambai forest) was 28.76. The species diversity index from seedling to pole level was moderate. At the tree level, the species diversity index was high (3.23). Species evenness index from seedling to tree level including height (0.82-0.92). The species richness index from seedling to pole was moderate. At the tree level, the species diversity index was high (7.45). The species dominance index of all levels was included in the low category (0.05-0.15).

Pemanfaatan Limbah Kayu Ulin (Eusideroxylon zwageri) sebagai Bahan Pengawet untuk Mencegah Serangan Rayap Kayu Kering pada Kayu Jabon (Anthocephalus cadamba) Kusumaningsih, Karti Rahayu; Hadi, Didik Surya; Sebriliani, Agnestya Erica
Jurnal Wana Tropika Vol 13 No 2 (2023): November
Publisher : Fakultas Kehutanan Institut Pertanian STIPER Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55180/jwt.v13i2.968

Eusideroxylon zwageri wood is a type of wood wich have high natural durability that contains extractive compounds such as alkaloids, tannins, saponins, flavonoids, and phenolics that are toxic to wood-destroying organisms. The ironwood sawmill industry produces waste in the form of sawdust that has not been used but only disposed of into the environment. Therefore, that wood sawdust waste can be used as a natural wood preservative to preserve wood whish have low natural durability such as Anthocephalus cadamba. In this study, A. cadamba wood preservation was carried out with irondust extract with various solution formulas, namely 5%, 10%. 15% and 20%. The purpose of this study was to know the effect of irondust extract solution formula as a preservative on the results of jabon wood preservation which includes absorption and retention of preservatives, mortality of dry wood termites, and the percentage of weight reduction of test samples after being fed to dry wood termites. The results of this research showed that the irondust extract solution formula had a significant effect on the absorption and retention of preservatives and the mortality of dry wood termites. The 20% irondust extract solution formula resulted in a higher preservative retention and drywood termite mortality value than the 5%, 10% and 15% solution formula, which was 12.13 Kg/m3 for retention and 88% for drywood termite mortality.

FRONT MATTER WANA TROPIKA Kusumaningsih, Karti Rahayu
Jurnal Wana Tropika Vol 13 No 2 (2023): November
Publisher : Fakultas Kehutanan Institut Pertanian STIPER Yogyakarta

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FRONT MATTER JURNAL WANA TROPIKA VOLUME 13 NOMOR 2, NOVEMBER 2023

Pengaruh Jarak Tanam terhadap Pertumbuhan Tanaman Jabon Putih (Anthocephalus cadamba Miq.) di Kabupaten Temanggung, Provinsi Jawa Tengah Ardityana, Krisna; Kusumaningsih, Karti Rahayu; Hadi, Didik Surya
Jurnal Wana Tropika Vol 14 No 1 (2024): Mei
Publisher : Fakultas Kehutanan Institut Pertanian STIPER Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55180/jwt.v14i1.1250

Anthocephalus cadamba Miq., is a type of tree from South and Southeast Asia which is currently widely cultivated by the community. Jabon has various uses such as block board and particle board. Apart from that, this plant is also known as a fast growing plant. Jabon farmers have their own way of caring for their plants, on of which is plant spacing. The goal of this research was to ascertain the impact of planting distance on survival rate and growth (height and diameter) of 1 year old Jabon plants in Temanggung Regency, Central Java. Data collection was carried out by taking 50 samples in each field consisting of 2x2 m, 3x3 m, and 4x4 m spread across 3 villages in Temanggung Regency. The replicates used were individual Jabon plants. Data from the research results were analysed using by analysis of variance, and tested further using the LSD test. The research results showed that land with a planting space of 3x3 m had a higher percentage of jabon plants than the land with a planting space of 2x2 m and 4x4 m, namely 71%. Land with a planting space of 2x2 m produce a better average height and diameter of jabon plants than of 3x3 m and 4x4 m, namely 1,39 m for height and 1,97 cm for diameter respectively.

Efektivitas Ekstrak Serbuk Kayu Jati dan Mahoni Sebagai Pestisida Nabati untuk Mengendalikan Hama Kutu Putih pada Bibit Sengon (Falcataria moluccana): Effectivity of Teak and Mahogany Wood Extracts as Botanical Pesticide to Control Pseudococcus calceolariae Pests at Falcataria moluccana Seedlings Kusumaningsih, Karti Rahayu; Woesono, Hastanto Bowo; Duru, Anastasya
HUTAN TROPIKA Vol 19 No 1 (2024): Volume 19 Nomor 1 Tahun 2024
Publisher : Jurusan Kehutanan, Fakultas Pertanian Universitas Palangka Raya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36873/jht.v19i1.14221

Waste of teak and mahagony woods in the form of sawdust has not been utilized. Those woods contain of extractives subtances such as carbamic acid, ammonium carbamate, phenol, flavonoid, saponin, etc. which potential to be used as botanical pesticide to control pests. The purpose of this research is to know effectivity of teak and mahagony wood extracts as botanical pesticide with several solution formulas, to control Pseudococcus calceolariae pest at Falcataria moluccana seedlings. Teak and mahagony sawdust were extracted with ethanol solvent and made into botanical pesticide with 10%, 20% and 30% formulas. The observed parameters are decrease of incidency and severity of P. calceolariae attack at F. moluccana seedlings after botanical pesticide application. Results of the research showed that teak and mahogany wood extracts were effective to control Pseudococcus calceolariae pest at Falcataria moluccana seedlings. Teak wood extract with 30% formula gived higher incidency and severity decreased of P. calceolariae attack, with decrease of incidency and severity were 89.32% and 94.44%.

Hubungan Umur, pH, dan C-Organik Terhadap Kerusakan Eucalyptus sp Akibat Serangan Angin: The Relationship of Age, pH, and C-Organic to Eucalyptus sp Wind Damage Suhartati, Tatik; Maystang, Jeffry; Kusumaningsih, Karti Rahayu; Purwadi, Purwadi
HUTAN TROPIKA Vol 19 No 1 (2024): Volume 19 Nomor 1 Tahun 2024
Publisher : Jurusan Kehutanan, Fakultas Pertanian Universitas Palangka Raya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36873/jht.v19i1.14254

The planting process of Eucalyptus sp is susceptible to wind damage. Many factors cause trees to be damaged by wind. These factors include the condition of the stand and other factors. This study aims to determine the relationship between stand age, soil characteristics (pH and C-Organic) to the percentage of wind damage. A total of 179 permanent plots were sampled at three ages of 6, 18 and 30 months. Multiple linear regression backward elimination method was used to determine the relationship of age, pH and C-organic to the percentage of damage. The results showed that the older the age of the stand, the percentage of damage increased. Soil characteristics have not been able to explain their direct.

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