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Contact Name
H A Oramahi
Contact Email
oramahi@fahutan.untan.ac.id
Phone
+6281345001010
Journal Mail Official
jurnaltengkawang@untan.ac.id
Editorial Address
Jl. Daya Nasional Pontianak 78124
Location
Kota pontianak,
Kalimantan barat
INDONESIA
Jurnal Tengkawang
ISSN : 20878788     EISSN : 27146855     DOI : http://dx.doi.org/10.26418
Core Subject : Agriculture,
Jurnal Tengkawang, merupakan jurnal Teknologi Pengembangan Kehutanan dan Lingkungan yang diterbitkan oleh fakultas kehutanan Universitas Tanjungpura Pontianak Kalimantan Barat. Jurnal ini menyajikan artikel mengenai hasil penelitian perkembangan kehutanan dan lingkungan mutakhir meliputi berbagai konsentrasi ilmu di bidang kehutanan yaitu Biologi, Manajemen Hutan, teknologi pengolahan hasil hutan, pengawetan kayu, teknologi peningkatan mutu kayu, budidaya hutan, konservasi sumber daya alam, ekonomi kehutanan, perhutanan sosial dan politik kehutanan serta bidang lingkungan. Setiap naskah yang dikirimkan ke Jurnal Tengkawang akan ditelaah oleh mitra bestari yang bidangnya sesuai. Jurnal ini diterbitkan setahun dua kali : Maret dan September.
Articles 79 Documents
DISTRIBUSI KOMPONEN KIMIA KAYU MAHANG (Macaranga hosei King) Wardenaar, Evy; Mariani, Yeni; Husni, Harnani; Diba, Farah; Yanti, Hikma
jurnal TENGKAWANG Vol 3, No 1 (2013): Jurnal Tengkawang
Publisher : Universitas Tanjungpura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/jt.v3i1.4088

Abstract

This research aim was to know the chemical distribution of wood (Macaranga hosei King) based on its stem height/axial direction (base, middle and end of stem) and the depth of stem/radial direction (2/3 3/3 rays, 1/3 2/3 rays and 0 1/3 rays). The experimental includes the percentage of alcohol benzene-soluble extractive content, lignin content, holocellulose and ?- cellulose. The result showed base on stem height that the percentage of alcohol benzene soluble extractive, lignin, holocellulose and ?- cellulose content decrease from the base, middle and to the end of stem. Base on depth of stem, the result showed that the percentage of alkohol benzena-soluble extractive content, lignin content, holocellulose and ?- cellulose decreasing from 2/3 3/3 rays, 1/3 2/3 rays and to the part of 0 1/3 rays. The interaction of stem height and depth of stem has significantly affected to the percentage of alcohol benzene-soluble extractive content. The overall result showed that Mahang wood is suitable for used as sawn timbers, wood panels and raw materials for pulp and paper. Keywords: chemical properties, Macarang hosei, stem height, stem depth.
EVALUASI ASAP CAIR SEBAGAI BIO-TERMITISIDA UNTUK PENGENDALIAN RAYAP TANAH Coptotermes sp. (Evaluation of Liquid Smoke as Bio-Pesticide to Control Subterranean Termites Coptotermes sp.) H.A. Oramahi, Nurhaida, Yuliati Indrayani,
jurnal TENGKAWANG Vol 1, No 2 (2011): JURNAL TENGKAWANG
Publisher : Universitas Tanjungpura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/jt.v1i2.126

Abstract

Coptotermes sp. is the most important genus of termites in buildings and plantations. In recent years, methods to combat termite infestation by using chemicals have caused serious hazards to humans and environment. The utilization of liquid smoke as the bio-termiticide to combat termite infestation is one of the appropriate and interesting technologies to develop. The aims of this research are: (1) to produce liquid smoke made from waste of empty fruit branch of oil palm by applying a condensation process, (2) to determine the optimum temperature of the production of liquid smoke, (3) to identify the component of liquid smoke, (4) to evaluate the bio-activity of liquid smoke as bio-termiticide on termites in the laboratorium. Liquid smoke was produced under various temperatures 350, 400, 450 C for 90 minutes. Phenol and acid analysis the components of liquid smoke were qualitatively analysed by using a gas chromatography mass spectrometer/GCMS. Evaluation of liquid smoke on subterranean termite was done according to Ohmura (1997) procedure under various concentration of 1%, 2%, 3%, dan 4%. Identification of the component of liquid smoke showed that mostly phenols and acetic acids were present in all temperature of pyrolisis. Content of phenols and acids were increasing with higher temperatures. The highest mortality of termite after 3 (three) weeks observation was recorded using liquid smoke produced at a temperature of 450 C, followed by 400C, 350C and the control, respectively. The highest weight loss of the paper disc was observed with the control with a weight loss of 100%, followed by 350C, 400C, dan 450C, respectively. Key words: Liquid smoke, TKKS, Bio-termiticide, Coptotermes sp.
UJI EFEKTIFITAS ANTIBAKTERI EKSTRAK KULIT BATANG JAMBU MONYET (Bellucia pentamera Naudin) TERHADAP PERTUMBUHAN BAKTERI Escherichia coli DAN Salmonella typhi Priandi, Farid; Yusro, Fathul; Diba, Farah; Mariani, Yeni; Nurhaida, .
jurnal TENGKAWANG Vol 9, No 1 (2019): JURNAL TENGKAWANG
Publisher : Universitas Tanjungpura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/jt.v9i1.33635

Abstract

People still use plants as a medicine to overcome a disease, because it is easily to obtain and relatively does not provide significant negative effects. One of the plants utilized by the people is Bellucia pentamera Naudin (B. pentamera). Diarrhea and typhoid fever are diseases that often assault Indonesian people. The bacterias were used in this study were Escherichia coli (E. coli) and Salmonella typhi (S. typhi). This study aimed to analyze the antibacterial effectiveness of B. pentamera bark extracts against E. coli and S. typhi, by Kirby-Bauer diffusion method with PCA as the media. The highest extract concentration against E. coli is 400 mg/ml possess an inhibition of 20±1 mm, and towards S. typhi is 80 mg/ml which possess an inhibition of 24.67±0,58 mm.Keywords: Bellucia pentamera, Disc Diffussion, Efectiveness, Escherichia coli, Salmonella typhi.
APLIKASI UREA DAN TANAH BERMIKORIZA PADA PERTUMBUHAN TANAMAN SERTA INFEKSI MIKORIZA PADA AKAR SENGON LAUT (Paraserianthes falcataria (L) Nielson) Wibowo, Febri Arif Cahyo; Syarifuddin, Amir
jurnal TENGKAWANG Vol 10, No 2 (2020): JURNAL TENGKAWANG
Publisher : Universitas Tanjungpura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/jt.v10i2.39815

Abstract

Decrease plant nutrient and water in the land is very alarming. The function of mycorrhizae is very beneficial for plants in forest areas that can be considered critical. Urea which is an instant fertilizer is often used by Indonesian farmers, but it has a negative impact on the soil. The nutrients contained in urea are 45% -46% is Nirogen. The purpose of this research was to study the development of the use of mycorrhizal soils by using urea fertilizer and its interactions, as well as to search for roots infected by mycorrhizae. This research was conducted in the greenhouse at the University of Muhammadiyah Malang conducted from January to February 2017. The design used in the study was a Randomized Complete Block Design (RCBD) with a combination of 16 and 3 replications. Data analysis was done by BNJ ANAVA followed and identification of mycorrhizae in the roots of sea sengon plants. At a dose of 300 grams of mycorrhizae soil is better than other doses. The dose of urea has been effected on sengon laut from the parameters of height and number of leaves. A dose of 1.5 grams of urea produces better plants than other doses. Root infection by mycorrhizae gets the greatest results on the combination of M2P2 with a yield of 30%. The type that is in the infected root is Glomus sp. The effect of mycorrhizae occurs only on the root length of plants.Keywords: Mycorrhiza, Root Infection, Sengon Laut, UreaPenurunan kualitas unsur hara dan air pada lahan kehutanan sangat memprihatinkan. Fungsi mikoriza yang sangat menguntungkan bagi tanaman pada lahan hutan yang dapat dikatakan kritis. Urea yang merupakan pupuk instan ini sering digunakan oleh para petani Indonesia, namun dapat berdampak negatif terhadap tanah. Unsur hara yang terkandung dalam urea ini 45%-46% adalah unsur N. Tujuan dari penelitian ini adalah mengetahui perbandingan pertumbuhan penggunaan tanah bermikoriza dengan penggunaan pupuk urea dan interaksinya, serta mengidentifikasi akar yang terinfekis oleh mikoriza. Penelitian ini dilakukan di green house Universitas Muhammadiyah Malang dilakukan pada bulan Januari-Maret 2017. Rancangan yang digunakan dalam penelitian adalah Rancangan Acak Kelompok Lengkap (RAKL) dengan kombinasi sebanyak 16 dan 3 kali ulangan. Data yang dianalisis menggunakan uji BNJ dan identifikasi mikoriza pada akar tanaman sengon laut. Hasil penelitian menunjukkan bahwa pada dosis 300 gram tanah bermikoriza lebih baik dibandingkan dosis lainnya. Dosis urea sangat mempengaruhi pertumbuhan sengon laut dari parameter tinggi dan jumlah daun. Dosis urea sebanyak 1,5 gram menghasilkan tanaman yang lebih baik dibandingkan dosis lainnya. Infeksi akar oleh mikoriza mendapatkan persentase terbesar pada kombinasiM2P2 yaitu 30%. Jenis yang terdapat pada terinfeksinya akar yakni jenis Glomus sp. Pengaruh mikoriza ini terjadi hanya pada panjang akar tanaman saja.Kata Kunci:Infeksi Akar,Mikoriza,Sengon Laut, Urea
PENINGKATAN MUTU KAYU JATI (Tectona grandis) HASIL PENJARANGAN ASAL KABUPATEN CIANJUR Pasaribu, Gunawan; Sisilia, Lolyta
jurnal TENGKAWANG Vol 2, No 1 (2012): Jurnal Tengkawang
Publisher : Universitas Tanjungpura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/jt.v2i1.1639

Abstract

Teakwood is one of the favourite wood due to its strength, durable and beauty. The quality of teakwood was influenced by plantation site, season and geographic. This study attempts to expose some characteristic of teakwood which is produced from thinning plantation with 1 and 2 hours heat treatments at 170oC also densification 17% and 25% at the same temperature. The result shows that both heat and densification treatments increase the hardness value of teakwood surface. The higroscopisity of teakwood is also increased after heat treatment. On the contrary, the treatment has not influence to the density of teakwood. The colour of teakwood is darker after 1 hour heat treatment. The anatomy character of teakwood is appear being flat due to the pressing process. Key words: Teakwood, spacing plantation, heat treatment, densification
APLIKASI UMPAN RAYAP BERBAHAN AKTIF HEXAFLUMURON PADA DOSIS BERBEDA DALAM PENGENDALIAN SERANGAN RAYAP DI PERKEBUNAN KELAPA SAWIT Diba, Farah; Simatupang, Marselinus TM; Siahaan, Lukas; Nurhaida, .; Idham, M; Irianto, M Yuli; Zulfadhli, .
jurnal TENGKAWANG Vol 7, No 2 (2017): JURNAL TENGKAWANG
Publisher : Universitas Tanjungpura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/jt.v7i2.23782

Abstract

Subterranean termites Coptotermes curvignathus has found as pest in oil palm plantation. The research aimed to control the termites in oil palm plantation using Hexaflumuron bait with different dosage. Location of research was oil palm plantation at Purun village in Mempawah Regency. The study was conducted by a completely randomized design method. The research treatment was dose of Hexaflumuron termite bait, consisting of 30 gram and 60 gram. Three blocks was choosing as a sample treatment consists of block H 35, block H 38 and block H 39. Hexaflumuron bait has weight 30 gram. Treatment dose of 30 gram was conducted with lay down the bait of Hexaflumuron at the mud tunnel of termites in the trunk of oil palm. Treatment dose of 60 gram was conducted with lay down two bait of Hexaflumuron at the mud tunnel of termites in the trunk of oil palm in the different place. Then inspection of bait consumption was conducted every week. Data of bait consumption and termites elimination was collected. Results of the research showed that Hexaflumuron bait was consumed by termites up to 100%. The bait has attracted the termites to consume and non-repellent to termites. After four until seven week consumption the Hexaflumuron bait, termites eliminated from the oil palm. The result of variance analysis showed that there was no significance difference between the dose of 30 gram and 60 gram  on the termite consumption level. Hexaflumuron bait was effective for termites elimination in oil palm plantation within four until seven weeks and dose 30 gram was optimum for termites elimination.Keywords: Coptotermes curvignathus, hexaflumuron, oil palm, termites bait, termites control
Identifikasi Senyawa Kimia Minyak Sereh Wangi Klon G3 (Cymbopogon nardus L.) dengan Media Tanam Tanah Gambut dan Potensinya Sebagai Antibakteri Enterococcus faecalis udawaty, wis; Yusro, Fathul; Sisillia, Lolyta
jurnal TENGKAWANG Vol 9, No 2 (2019): JURNAL TENGKAWANG
Publisher : Universitas Tanjungpura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/jt.v9i2.36835

Abstract

Plants as an alternative medicinal becomes an option to cope of the synthetic antibiotic resistance to disease-causing bacteria. Essential oil of citronella (Cymbopogon nardus L.) contains antibacterial compounds that citronellal, geraniol and citronellol obtained through steam distillation and water. E. faecalis is among bacteria develops resistance to antibiotics. This experimental reasearch is aimed to test the antibacterial activity of citronella oil were planted in peat soils from West Kalimantan againts E. faecalis bacteria and to identify chemical compounds of citronella oil quantitatively by Gas Chromatography-Mass Spectometry (GCMS) analysis. Testing of antibacterial activity of citronella oil using disc diffusion method in MHA with concentrations of 5%, 10%, 15% and 20% and be repeated 3 times. The controls used amoxicillin and amikacin (positive control) and DMSO (negative control). The research result obtained was fourth of concentration test has a response barriers against E. faecalis with an average diameter category sequentially 10.667 ± 1.155 mm; 15.333 ± 0.577 mm; 20.667 ± 1.155 mm; 24.667 ± 0.577 mm. GCMS analysis identified that citronella oil has 26 chemical compounds. Three major compounds with the largest percentage areas are geraniol (31.65%), citronellal (19.42%) and citronellol (15.56%). It was concluded that citronella oil contains antibacterial compounds and the most effective against E. faecalis in a concentration of 20%.Keywords: antibacterial, E. faecalis, GC-MS, citronella oil, steam distillation and water
STUDI ASOSIASI FUNGI MIKORIZA ARBUSKULA (FMA) PADA TEGAKAN EUCALYPTUS (Eucalyptus pellita) DI LAHAN GAMBUT Putra, Pironi Ginanda; Muin, Abdurrani; Yusro, Fathul
jurnal TENGKAWANG Vol 2, No 2 (2012): Jurnal Tengkawang
Publisher : Universitas Tanjungpura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/jt.v2i2.1943

Abstract

Some of peatland in west borneo has been used for development of Industrial Plants Forests (IPF). One of those plants is Eucalyptus pellita. Aim of this research is determine the AMF (Arbuscular Mycorrhizal Fungi) association on E. pellita plants in the peatland area of PT. Kalimantan Subur Permai. Method of the research is spores isolation through wet process screening in gradually, coloring root, characteristics of spores in genus level and calculate the percentage of root infection.The result research show 6 species founded of AMF spores from one genus of Glomus and average percentage of root infection is 20% 36%. Keyword : association, arbuscular mycorrhizal fungi, E. pellita, peatland
PENGAMATAN KEBERADAAN BADAK SUMATERA (Dicerorhinus sumatrensis) DI KUTAI BARAT DAN MAHAKAM ULU KALIMANTAN TIMUR Hardiansyah, Gusti; Muslim, Ahmad; Tavita, Gusti Eva; Kurniawan, Yuyun; Kusuma, Arif Data
jurnal TENGKAWANG Vol 3, No 2 (2013): Jurnal Tengkawang
Publisher : Universitas Tanjungpura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/jt.v3i2.21610

Abstract

Sumatran Rhino (Dicerorhinus sumatrensis) is the smallest rhinoceros and the most primitive types of the five species of rhinoceros that still alive. In the 1990s the status of the Sumatran rhino population in East Kalimantan never again recorded scientifically (Meijaard, 1996). In 2013 WWF Indonesia - Kutai Barat find signs of rhino are supported by the findings of the trail and a video camera recording automatically. The study aims to determine the status of the rhino habitat conditions and population. The experiment was conducted in Kutai Barat and Mahakam Ulu , East Kalimantan. In this study used a grid of 4x4 km ² ² divided into 2x2 cells with an area of 240 km² observations which represent 15 % of Zone 1 ( 1,600 km² ). The results showed high levels of habitat suitability with a population of 7-15 individuals.Key words : Habitat, population Sumatran Rhinoceros (Dicerorhinus sumatrensis)
PERSEPSI DAN PARTISIPASI MASYARAKAT DALAM PELESTARIAN HUTAN RUMAH PELANGI SEBAGAI KAWASAN KONSERVASI (Studi Kasus Hutan Rumah Pelangi, Desa Teluk Bakung, Kecamatan Ambawang, Kabupaten Kubu Raya) Putra, Muhammad Syukur; Zainal, Sofyan; Idham, M
jurnal TENGKAWANG Vol 8, No 1 (2018): JURNAL TENGKAWANG
Publisher : Universitas Tanjungpura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/jt.v8i1.28247

Abstract

This research aims to determine the level of perception and society participation in forest conservation of Rumah Pelangi as conservation areas. Benefits of this research is to provide feedback for the manager and local authorities to managing the Rumah Pelangi for the sustainability of forest management in its area. The method used is descriptive while the data collection used a structured interview using a questionnaire. The number of respondents in the study were 76 respondents who are local residents and have at least 20 years old with minimum domicile in the are at least 3 years. Research result shows that public perceptions of the forest area in Rumah Pelangi is very low when averaged by the results of the two hamlets percentage did not achieve 50%, and the level of result community participation is low category of all, are under 60%. There is no correlation between perception and society participation in forest preservation of Rumah Pelangi. It is seen of the high number of society perception of Rumah Pelangi, however society participation in managing and protecting the region is very low.Keyword: forest conservation, perception, participation, Rumah Pelangi, society