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All Journal Jurnal Silvikultur Tropika (JST) Jurnal Kehutanan Papuasia (Journal of Papuasia Forestry) Jurnal Sylva Lestari
Amilda Auri
Department Of Forestry, Faculty Of Forestry, Universitas Papua
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Earth & Planetary Sciences Energy Environmental Science Materials Science & Nanotechnology Social Sciences

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Growth Response of Gyrinops verstegii Cuttings on Various Concentration Level of IBA (Indole Butyric Acid) Hormone RESPON PERTUMBUHAN STEK Gyrinops verstegii TERHADAP PEMBERIAN BERBAGAI TINGKAT KONSENTRASI HORMON IBA (Indole Butyric Acid) Amilda Auri; Petrus A. Dimara
Jurnal Silvikultur Tropika Vol. 7 No. 2 (2016): Jurnal Silvikultur Tropika
Publisher : Departemen Silvikultur, Fakultas Kehutanan dan Lingkungan, Institut Pertanian Bogor (IPB)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/j-siltrop.7.2.%p

Abstract

Until now, the supply of the seed sources still rely on seeds or germs. Meanwhie, the certain wood species, the production of seeds are insufficient and the handling is quite difficult. Consequently, when seedling, their germination capacities and growth percentages are very low. Providing seed source through shoot cuttings which if it is planted in advantegous condition for regeneration, it will grow and develop into fast growing species as well as good quality species. Supplying of plant growth regulator is expectedly able to affect the plant growth when given according to the plant needs. This research aimed to determine the concetration level of growth reglator IBA (Indole Butyric Acid) for the growth of shoot cuttings of agarwood Gyrinops verstegii. The method used in this research is experiment with completely-randomized design (CRD). Results showed that the concentration level of IBA affected the growth of callus, roots and shoots. IBA treatment at the concentration of 300 ppm showed the best response to the cutting life, growed earlier, the number and the length of shoot are greater. However, in the root zone, the treatment without IBA hormone provided better response which is showed by the number and the length of root.Key words: Gyrinops verstegii, Indole Butyric Acid, growth response
VIABILITAS BENIH GAHARU (Aquilaria malaccensis) DENGAN MEDIA PERKECAMBAHAN SERBUK GERGAJI DAN ARANG SEKAM PADI Amilda Auri; Petrus A. Dimara; Rafel Marani
JURNAL KEHUTANAN PAPUASIA Vol 1 No 2 (2015): Jurnal Kehutanan Papuasia
Publisher : Fakultas Kehutanan UNIPA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.46703/jurnalpapuasia.Vol1.Iss2.32

Abstract

Tujuan dari penelitian ini adalah untuk mengetahui pengaruh media kecambah tanah yang dicampur arang limbah gergaji dan arang sekam dalam perkecambahan benih Aquilaria malaccensis. Metode yang digunakan dalam penelitian ini adalah eksperimen yang dirancang dengan Rancangan Acak Lengkap (RAL). Data dianalisis dengan Analisi Ragam (Anova) untuk mengetahui pengaruh media terhadap daya kecambah. Untuk mengetahui mengetahui media perkecambahan mana yang memberikan persen dan waktu perkecambahan yang baik digunakan analisis HSD (TUKEY). Hasil penelitian menunjukkan bahwa persen dan waktu perkecambahan benih A. malaccensis yang baik adalah pada media kecambah tanah yang dicampur arang gergaji dan sekam. Persen perkecambahan pada media ini mencapai 79,33% dengan waktu perkecambahan 20 hari.
RESPON PERTUMBUHAN SEMAI GAHARU (Aquilaria malaccensis) TERHADAP PEMBERIAN PUPUK ORGANIK Oktovina Dorce Inggesi; Amilda Auri; Petrus A. Dimara
JURNAL KEHUTANAN PAPUASIA Vol 5 No 2 (2019): Jurnal Kehutanan Papuasia
Publisher : Fakultas Kehutanan UNIPA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.46703/jurnalpapuasia.Vol5.Iss2.151

Abstract

Tujuan dari penelitian ini adalah untuk mengetahui respon pertumbuhan semai gaharu (Aquilaria malaccensis) terhadap pemberian pupuk organik melalui penggunaan metode eksperimen rancangan percobaan lengkap (RAL) dengan total 180 unit percobaan. Hasil penelitian respon pertumbuhan semai gaharu menunjukkan tidak ada perbedaan yang nyata antara ketiga perlakuan yang diberikan terhadap pertambahan tinggi semai gaharu dengan nilai F hitung 2,196 lebih besar dari pada signifikannya yaitu 0,192. Rata-rata pertumbuhan diameter tertinggi dimiliki oleh perlakuan kontrol yaitu 0,037 cm sedangkan perlakuan media campuran pupuk kandang dan top soil dan media campuran pupuk kandang, EM4+ dan top soil memiliki nilai rata-rata pertumbuhan yaitu 0,09 dan 0,08 cm. Hasil penelitian menunjukkan bahwa tidak ada perbedaan yang nyata antara tinggi, diameter dan percabangan tanaman pada ketiga perlakuan yang diberikan.
Effect of Landform on the Distribution of Metroxylon sagu Habitat in Yapen Islands, Papua Province, Indonesia Petrus Abraham Dimara; Amilda Auri
Jurnal Sylva Lestari Vol. 11 No. 1 (2023): January
Publisher : Department of Forestry, Faculty of Agriculture, University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jsl.v11i1.633

Abstract

Sago palm (Metroxylon sagu) plays a vital role in the Papuan indigenous community’s social, economic, and cultural life. It is a source of staple food, household income, and embedded cultural values. This research aimed to determine the extent of sago palm habitat spread using spatial data. The classification method and multispectral imaging were used by employing satellite imagery (Landsat 8 and Quick Bird) and field surveys. The sago forest coverage in Yapen islands was 87.73%, located between 9–50 masl, covering 9,456.26 ha. The results revealed that 43.53% of the habitat lies in the inclination of 2–8% (extreme gentle slope), covering 4,692.45 ha. Sago forest was found in a gleysol soil type with precipitation of 3,000-3,100 mm. The sago forest distances of 0–250 m and 251–500 m to the coastline showed that the habitat covers an area of 153.87 ha and 368.19 ha. The preferable area in this category is Raimbawi Subdistrict, followed by Kosiwo, and the less suitable area, or the marginal land, is in Windesi Subdistrict. Keywords: Alternative crop, Metroxylon sagu, sago, spatial distribution, Yapen Islands
Co-Authors Oktovina Dorce Inggesi Petrus A. Dimara, Petrus A. Rafel Marani