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Karti Rahayu Kusumaningsih
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INDONESIA
Jurnal Wana Tropika
Published by Institut Pertanian Stiper Yogyakarta
ISSN : 20887019     EISSN : 28290054     DOI : https://doi.org/10.55180
Core Subject : Agriculture,
Agriculture, Biological Sciences & Forestry
Forest Planning Forest Policy Forest Ecology Forest Resources Utilization Forest Ergonomics Forest Inventory Forest Product Silviculture Management of Regional Ecosystems
Arjuna Subject : Ilmu Pertanian dan Biologi (Semua) - Ilmu Pertanian dan Biologi (Lain-Lain)
Articles 127 Documents
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Identifikasi dan Potensi Tumbuhan Obat di Kawasan Ekowisata Gunung Api Purba Nglanggeran, Kabupaten Gunung Kidul, Provinsi Daerah Istimewa Yogyakarta Gemilang, Robertus Anugerah; Kusumaningsih, Karti Rahayu
Jurnal Wana Tropika Vol 15 No 2 (2025): November
Publisher : Fakultas Kehutanan Institut Pertanian STIPER Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55180/jwt.v15i2.2341

Abstract

Medicinal plants have long been utilized by the community, especially those living around forest. The Nglanggeran Ancient Volcano Ecotourism Area, Gunung Kidul Regency, Yogyakarta is an ecotourism with ​​48 Hectares area that is covered with various types of medicinal plants whose potential is unknown. This study aims to identify the types and determine the potential of medicinal plants in the Nglanggeran Ancient Volcano Ecotourism Area, Gunung Kidul Regency, Yogyakarta. Sampling was carried out by creating a 20 x 20 meter plot using the Purposive Random Sampling method. Quantitative analysis was used to calculate the density, frequency, dominance, Importance Value Index (INP), and Species Diversity Index (H’) of medicinal plants at various life stages. Result of the research showed that there were 28 types of medicinal plants originating from 22 families. The most commonly found medicinal plant species among trees was mahogany (Swietenia macrophylla - Meliaceae family) with 34 individuals, and among herbs was Elephantopus scaber - Asteraceae family with 39 individuals. The highest Important Value Index at the tree level was S. macrophylla at 253.61, pole level was Annona muricata at 140.83%, sapling level was S. macrophylla at 41.35%, and seedling level was Elephantopus scaber at 41.79%. The Species Diversity Index (H') at the seedling level was 2.552, saplings at 2.021, and poles at 1.429, which is considered moderate, while at the tree level it was 0.509, which is considered low.
Biomasa dan Cadangan Karbon Tanaman Berkayu di Hutan Desa Sungai Pelang, Kabupaten Ketapang, Kalimantan Barat Subarkah, Khansa Falere; Suhartati, Tatik; Bowo Woesono, Hastanto; Purwadi
Jurnal Wana Tropika Vol 15 No 2 (2025): November
Publisher : Fakultas Kehutanan Institut Pertanian STIPER Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55180/jwt.v15i2.2343

Abstract

The Sungai Pelang Village Forest, Block 11 Sub-block G, possesses a diversity of vegetation consisting of various species with different growth stages and has the potential to store carbon stocks. This research aims to estimate the biomass and carbon stocks of various woody plant species. The estimation uses a non-destructive method. The sampling method employed was the transect line method with a 10% sampling intensity, resulting in 13 observation plots with a distance of 63 meters between plots. The data collected included diameter, tree height, and the specific gravity of the species found. The results showed that the estimated total biomass is 87,40 tons/ha, and the carbon stock is 41,08 tons/ha, which is dominated by the tumih wood (Combretocarpus rotundatus (Miq.) Danser) and Geronggang (Cratoxylum arborescens).
Penjarangan Awal Tanaman Sengon Jarak Tanam 2m X 2m Agroforestry Sederhana di Widodomartani Ngemplak Sleman Yogyakarta Prijono, Agus; Rawana; Saputro, Setiaji Heri
Jurnal Wana Tropika Vol 15 No 2 (2025): November
Publisher : Fakultas Kehutanan Institut Pertanian STIPER Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55180/jwt.v15i2.2344

Abstract

The Widodomartani community cultivates some of their land for forest plants, generally sengon (Falcataria moluccana) is liked community because fast growing species and harvested quickly. Generally, the planting pattern used is simple agroforestry, with a planting distance of 2m x 2m. This research aims to determine the growth using agroforestry pattern ,time the first thinning and  their plant components  . The growth data taken is in the form of height, diameter and plant components. The growth data obtained was t tested. The results research t tested showed that agroforestry pattern is better than monoculture to 3 aged for average height and average diameter before 3 aged but at 3 aged not significant so this is the right time for the first thinning so that when harvesting the results are optimal. The plant components first year include sengon with intercropping of cassava, chili peppers, blue taro, tomatoes, corn, papaya  and after first year sengon, blue taro, papaya. The disturbance found was tumor rust caused by Uromycladium tepperianum.
FRONT MATTER WANA TROPIKA VOLUME 15 NOMOR 2 NOVEMBER 2025 Kusumaningsih, Kartirahayu
Jurnal Wana Tropika Vol 15 No 2 (2025): November
Publisher : Fakultas Kehutanan Institut Pertanian STIPER Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

FRONT MATTER WANA TROPIKA VOLUME 15 NOMOR 2 NOVEMBER 2025
Pengaruh Bonita dan Ketinggian Tempat Tumbuh terhadap Produktivitas Getah Pinus (Pinus merkusii) DI BKPH Purworejo, KPH Kedu Selatan Andriani, Erika Novita; Suwadji, Siman
Jurnal Wana Tropika Vol 16 No 1 (2026): MEI
Publisher : Fakultas Kehutanan Institut Pertanian STIPER Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55180/jwt.v16i1.2007

Abstract

The Pine tree (Pinus merkusii Jungh. Et de Vriese) is one of the pioneer plant species that can grow in various conditions without requiring specific growing conditions, and the main product of this tree is Pine resin. This study aims to determine the effect of diameter at breast height (DBH) and altitude on Pine resin productivity, conducted at RPH Bruno plots 46 K-2 and 47B; RPH Katerban plots 103A and 105, BKPH Purworejo, KPH Kedu Selatan. Observations were carried out for 30 days with 3 data collection sessions on tapping wounds made by the researcher. The methods used were Quantitative and Qualitative with multiple linear regression analysis, with the multiple linear regression equation Y = 16.823 – 2.694 X1 – 0.006 X2; based on the regression equation, the value for DBH is -2.694 and for altitude is -0.006.  The results of this study show that Bonita and The altitude of the growing location affect Pine resin productivity. In addition, the analysis data of the correlation coefficient (R) in the coefficient of determination (R2) obtained a value of 1, meaning that the variables Bonita and the altitude of the growing location are strongly correlated with pine resin productivity. The estimated annual production results (year 2025) obtained by the researcher are lower compared to the RTT 2025 production target of BKPH Purworejo in the same plot. This result is due to the researcher only weighing resin from one tap made by the researcher, whereas in reality, tapping farmers make an average of two taps.
Uji In-Vitro Ekstrak Daun Tembakau (Nicotiana tabacum) dan Alamanda (Allamanda cathartica) sebagai Pengendali Hama Helopeltis bradyi pada Bibit Eucalyptus sp. Fernandez, Andreas; Kusumaningsih, Karti Rahayu
Jurnal Wana Tropika Vol 16 No 1 (2026): MEI
Publisher : Fakultas Kehutanan Institut Pertanian STIPER Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55180/jwt.v16i1.2340

Abstract

Helopeltis bradyi is an important pest in Eucalyptus sp. seedlings that cause damage and seedling death. Pest control that is usually carried out at HTI (Industrial Forest Plantations) is by using chemical pesticides that have the potential to have a negative impact on the environment. Therefore, an alternative pesticide is needed for the use of  botanical pesticides. The purpose of this study is to know the effect of botanical pesticide types and solution formulas on the mortality and severity of H. bradyi pest attack on Eucalyptus sp. seedlings. The research used a Randomized Complete Block Design with two treatment factors, namely the type of botanical pesticide (tobacco and allamanda leaf extract) and the solution formula (10%, 20% and 30%). The observed parameters included pest mortality and severity of H. bradyi pest attack on seedlings with in-vitro test. Results of the research showed that interaction between the type of botanical pesticide in the form of Nicotiana tabacum and Allamanda cathartica leaf extract with 30% solution formula produced a higher mortality of H. bradyi pests with 100% pest mortality. Nicotiana tabacum leaf extract with 30% formula produce 0,00% pest attack severity.
Pengaruh Jenis Kayu dalam Perendaman Minyak Jelantah dan Plastik LDPE terhadap Stabilisasi Dimensi dan Sifat Mekanik Kayu Wardana, Wisnu; Woesono, Hastanto Bowo; Hadi, Didik Surya
Jurnal Wana Tropika Vol 16 No 1 (2026): MEI
Publisher : Fakultas Kehutanan Institut Pertanian STIPER Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55180/jwt.v16i1.2549

Abstract

This study aims to determine the effect of wood type and immersion time in plastic solution on the dimensional stability and mechanical properties of wood. This study used a completely randomized design with factorial experiments. The factors used consisted of 2 factors including wood type consisting of three types of wood: sengon, teak, bangkirai, and immersion time factors including three levels, namely: control (0), 20, and 30 minutes, each of which was repeated three times. The parameters observed included the dimensional change ratio (T/R), MOE, MOR, and compressive strength parallel to the grain. The test results for each parameter were analyzed using Analysis of Variance, and if there were significant differences, further testing was carried out using the Tukey test. The results showed that immersion increased the dimensional stability of wood as indicated by a decrease in the T/R ratio in sengon from 1.56 to 1.49 and teak from 1.64 to 1.58, while bangkirai had a higher value of 2.03–2.26. Tukey's test showed that the MOE values ​​differed significantly between wood species, namely sengon 1,239.17 kg/cm², teak 2,715.29 kg/cm², and bangkirai 4,669.53 kg/cm². The MOR values ​​were 571.34 kg/cm², 1,394.91 kg/cm², and 2,182.14 kg/cm², respectively. However, the immersion and the interaction between the two did not differ significantly. The compressive strength parallel to the grain also differed significantly between wood species: sengon (255.34 kg/cm²), teak (435.25 kg/cm²), and bangkirai (752.66 kg/cm²). The immersion treatments differed significantly from the control, but no significant differences were observed between the immersion treatments. The average compressive strength parallel to the wood grain increased with each immersion treatment, from 406.56 kg/cm² (0 min) to 514.07 kg/cm² (20 min) and 522.62 kg/cm² (30 min), without any interaction between the two factors.

Page 13 of 13 | Total Record : 127

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