Septi Damiska
Fakultas Kehutanan Universitas Tanjungpura Jalan Imam Bonjol Pontianak 78124

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Journal : JURNAL HUTAN LESTARI

PENAMBAHAN RAGI DAN EKSTRAK BIJI JAGUNG TERHADAP PERTUMBUHAN TUNAS MANGGIS SECARA IN VITRO In Vitro Addition of Yeast and Corn Seed Ekstract on the Growth of Shoots Mangosteen (Garcinia mangostana L.) Damiska, Septi; Wulandari, Reine Suci; Darwati, Herlina
JURNAL HUTAN LESTARI Vol 3, No 1 (2015): Jurnal Hutan Lestari
Publisher : Universitas Tanjungpura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/jhl.v3i1.8896

Abstract

ABSTRACT Mangosteen is one of the types of plants that have a high economic value and become a commudity export market internationally. This is because the mangosteen has many beneficial uses. Mangosteen is one of tropical forest trees that have the correct length of the cycle and have a less good rooting systems making it difficult to grow naturally. So, the mangosteen seeds procurement needs to be done quickly and in an excellent quality to support the productivity of the mangosteen. One of the ways that can be done is with the technique of tissue culture. The research aimed to get the concentration of yeast, corn seed extract as well as the combination of yeast and corn seed extract which is optimum for budding multiplication mangosteen and the mangosteen shoots long added. The research was carried out using the basic method of complate random design arranged in a factorial with two factors, namely the yeast with 5 degrees of treatment (control, R1=7%, R2=8%, R3=9%, R4=10%) and corn seed extract with 5 treatment levels (control, J1=7%, J2=8%, J3=9%, J4=10%)  so there are 25 treatment with 3 replicates and earned 75 units of the experiment. The results showed the best yeast concentration in the yeast is added the number of shoots with a concentration of 9% while the increase in the concentration of the best corn number of shoots was with a concentration of 8%. To increase the length of the shoots of the mangosteen, the best yeast concentration is 8%, while the best corn seed extract is concentration on 0%. The best combination between the yeast and corn seed extract in the amount of the increase of the mangosteen is R3J2 and shoots to high value added mangosteen shoots, a combination of yeast and corn seed extract is best R2J0. Keyword : Garcinia mangostana, yeast, corn seed ekstract
PERILAKU BERTELUR PENYU HIJAU (Chelonia mydas) di PANTAI BELACAN DESA SEBUBUS KECAMATAN PALOH KABUPATEN SAMBAS Damiska, Septi; Munandar, Ari; Darwati, Herlina; Rifanjani, Slamet
JURNAL HUTAN LESTARI Vol 12, No 2 (2024): JURNAL HUTAN LESTARI
Publisher : Universitas Tanjungpura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/jhl.v12i2.86751

Abstract

The green turtle is one of the most intensively exploited members of the turtle family. The purpose of this study was to describe the egg-laying behavior of green turtles (Chelonia mydas) on Belacan Beach Sebubus Village Paloh District Sambas Regency. Research using direct observation method with observation technique is done by noting all behavior seen at each time and its description. Research shows that all types of turtles have almost the same stages of laying eggs, namely emerging to the sea surface and choosing a location to lay eggs, digging holes, laying eggs, closing the nest and closing the hole and disguise the distance. Factors that influence the presence of green turtles going up to the mainland to lay eggs are the tides of sea water, the slope of the coast and the presence or absence of vegetation that can be used as a shelter for their nest.Keywords: Belacan beach, Turtle, Turtle behaviorAbstrakPenyu hijau adalah salah satu anggota keluarga penyu yang paling dieksploitasi secara intensif. Tujuan penelitian ini adalah untuk mendeskripsikan perilaku bertelur penyu hijau (Chelonia mydas) di Pantai Belacan Desa Sebubus Kecamatan Paloh Kabupaten Sambas. Penelitian menggunakan metode observasi langsung dengan teknik observasi yang dilakukan dengan mencatat semua tingkah laku yang dilihat pada setiap waktu dan uraiannya. Penelitian menunjukkan bahwa semua jenis penyu mempunyai tahapan bertelur yang hampir sama, yaitu muncul ke permukaan laut dan memilih lokasi bertelur, menggali lubang, bertelur, menutup sarang dan menutup lubang serta menyamarkan jarak. Faktor yang mempengaruhi keberadaan penyu hijau naik ke daratan untuk bertelur adalah pasang surut air laut, kemiringan pantai dan ada tidaknya vegetasi yang dapat dijadikan tempat berlindung sarangnya.Kata kunci: Pantai Belacan, Penyu, Tingkah laku penyu
KEARIFAN LOKAL MASYARAKAT DALAM MELESTARIKAN TEMPAT BERSARANG LEBAH MADU HUTAN (Apis dorsata) DENGAN TEKNIK TIKUNG DI DUSUN SEMANGIT DESA NANGA LEBOYAN KABUPATEN KAPUAS HULU Nova, Nova Diea; Thamrin, Edy; M, Iskandar A; Damiska, Septi
JURNAL HUTAN LESTARI Vol 12, No 3 (2024): JURNAL HUTAN LESTARI
Publisher : Universitas Tanjungpura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/jhl.v12i3.53534

Abstract

Local wisdom is a tradition that has been passed down from generation to generation by the community from generation to generation until now in a traditional organization called periau. Local wisdom is carried out by the people of Dusun Batu Rawan to preserve the nesting places of forest bees (Apis dorsata) in the Sentarum Lake Forest Area. This study aims to explain the form of community local wisdom in preserving nesting sites with tikung techniques, efforts to preserve nesting sites and efforts to conserve forest bee feed (Apis dorsata) by the people of Dusun Batu Rawan in the Danau Sentarum Forest Area, Selimbau District, Kapuas Hulu Regency, West Kalimantan Province. This study used a survey method with interview techniques to 20 respondents from Periau Semangit and 15 honey farmers in Batu Rawan Hamlet. The results show that the form of local wisdom practiced by the people of Dusun Batu Rawan, Nanga Leboyan Village, still maintains customs, ancestral values, prohibitions, harvest systems, sanctions for violations and tree ownership. Preservation of the type of feed is carried out by planting putat (Barringtonia actutangula) trees along the lake, not mining without a permit, not burning and cutting trees in the Sentarum Lake Forest Area. Preservation of nesting trees is carried out by guarding forage trees, not burning forests, involving APDS and traditional institutions.Keyword: Forest Honey Bees, Local Wisdom, Tikung TechniquesAbstrakKearifan lokal dalam melestarikan tempat bersarang lebah madu hutan merupakan tradisi yang diturunkan secara turun temurun oleh masyarakat hingga sekarang dalam suatu organisasi adat yang disebut periau. Kearifan lokal dilakukan oleh masyarakat Dusun Batu Rawan untuk melestarikan tempat bersarang lebah madu hutan (Apis dorsata) di Kawasan Hutan Danau Sentarum. Penelitian ini bertujuan untuk menjelaskan bentuk kearifan lokal masyarakat dalam melestarikan tempat bersarang dengan teknik tikung dan upaya pelestarian tempat bersarang dan upaya pelestarian pakan lebah hutan (A.dorsata) oleh masyarakat Dusun Batu Rawan di Kawasan Hutan Danau Sentarum, Kecamatan Selimbau, Kabupaten Kapuas Hulu, Provinsi Kalimantan Barat. Penelitian ini menggunakan metode survei dengan teknik wawancara kepada 20 responden dari Periau Semangit dan 15 petani madu di Dusun Batu Rawan. Hasil penelitian menunjukkan bahwa bentuk kearifan lokal yang dilakukan masyarakat Dusun Batu Rawan Desa Nanga Leboyan masih mempertahankan adat istiadat, nilai-nilai leluhur, larangan, sistem panen, sanksi pelanggaran dan kepemilikan pohon. Pelestarian jenis pakan bagi lebah madu hutan dilakukan dengan menanam pohon putat (Barringtonia actutangula) di sepanjang danau, tidak melakukan penambangan tanpa izin, tidak membakar dan menebang pohon di Kawasan Hutan Danau Sentarum. Pelestarian pohon bersarang dilakukan dengan menjaga pohon, tidak membakar hutan, melibatkan APDS dan lembaga adat dalam upaya pelestarian Kawasan Hutan Danau Sentarum.Kata Kunci: Lebah Madu Hutan, Kearifan Lokal, Teknik Tikung
KEANEKARAGAMAN JENIS POHON DI ARBORETUM PT. ERNA DJULIAWATI LOGGING UNIT II SERUYAN HULU, SERUYAN KALIMANTAN TENGAH Deliana, Ade; Rifanjani, Slamet; Darwati, Herlina; Damiska, Septi
JURNAL HUTAN LESTARI Vol 13, No 3 (2025): JURNAL HUTAN LESTARI
Publisher : Universitas Tanjungpura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/jhl.v13i3.87805

Abstract

The arboretum area of PT. Erna Djuliawati is believed to have a variety of flora. Tree diversity as one element of the ecosystem can provide information which is the main factor in the conservation of forest resources. The arboretum is one source of seeds for the development of protected areas and increasing sustainability. Flora diversity as one element of the ecosystem can provide information which is the main factor in the conservation of forest resources. PT Erna Djuliawati owns an arboretum area with a high diversity of flora species; therefore, it is important to conduct an analysis of tree species diversity in the area. This study employed a census method using the line–plot technique. The results showed that the Important Value Index (INP) for all vegetation strata was dominated by Medang (Dehaasia incrassata). The species diversity index (H’) ranged from 3.15 to 4.06, which is classified as high diversity (H’ > 3). The dominance index (C) ranged from 0.00107 to 0.000281, indicating low dominance, meaning that no single species dominated the others. The evenness index (e) ranged from 0.78 to 0.91, indicating a more evenly distributed community, while the species richness index (R) ranged from 9.39 to 9.93, reflecting high species richness. Keyword: Arboretum, Diversity, Tree, Erna Julianti, Seruyan Hulu Abstrak Kawasan arboretum PT. Erna Djuliawati yang dipercayai memiliki jenis flora yang beragam. Keanekaragaman pohon sebagai salah satu unsur ekosistem dapat memberikan informasi yang merupakan faktor utama dalam konservasi sumber daya hutan. arboretum merupakan salah satu sumber benih bagi pengembangan Kawasan lindung dan peningkatan keberlanjutan. Keanekaragaman Flora sebagai salah satu unsur ekosistem dapat memberikan informasi yang merupakan faktor utama dalam konservasi sumber daya hutan.. PT Erna Djuliawati memiliki kawasan arboretum dengan jenis flora yang beragam, sehingga penting untuk dilakukan analisisKeanekaragaman Jenis Pohon di Areal tersebut. Penelitian ini menggunakan metode sensus teknik garis berpetak. Hasil penelitian menunjukan Indeks Nilai Penting (INP) untuk semua tingkat vegetasi yaitu Medang (Dehaasia incrassata), Indeks keanekaragaman jenis (H’) 3,15 – 4,06 yang tergolong kedalam kelas tinggi, indeks dominasi (C) 0,00107 – 0,000281 yang berarti rendah atau tidak hanya satu jenis saja yang dominan terhadap jenis lainnya, indeks kemerataan jenis (e) 0,78 – 0,91 menunjukkan komunitas tersebut lebih merata, nilai kekayaan jenis, nilai kekayaan jenis (R) 9,39 – 9,93 menunjukkan kekayaan yang tinggi. Kata kunci: Arboretum, Keanekaragaman, Pohon, Erna Djulianti, Seruyan Hulu