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Kajian Penggunaan Paclobutrazol terhadap Pertumbuhan Semai Agathis Loranthifolia (The Study of paclobutrazol on the growth of Agathis loranthifolia seedlings) Ombo Satjapradja; L Setyaningsih; Dida Syamsuwida; Ateng Rahmat
Jurnal Manajemen Hutan Tropika Vol. 12 No. 1 (2006)
Publisher : Institut Pertanian Bogor (IPB University)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (194.594 KB)

Paclobutrazol is one of hormone which able to inhibit the growth of tree seedling. This kind of hormone is usually used extensively in horticulture in stimulating flowering and enhancing fruiting. The objective of the research was to know the effect of paclobutrazol on the growth of Agathis loranthifolia seedlings during storage under different condition, in order to support seedling supply programs for forest establishment and rehabilitation. There were two factors of the trial i.e.) growth inhibitors (paclobutrazol, NaCl and aquadest) and 2) storage conditions (growth house, heavy shading and light shading). A complete randomized design with two factors and 3replication were used in this trial. The result of the research showed that the treatment of paclobutrazol to the seedlings stored at a green house gave an effect to the height and diameter growth of Agathis loranthifolia seedlings which were lower than those treated by NaCl and aquades. While paclobutrazol treated seedlings stored under light shading, gave higher value of seedling height and diameter than those stored under green house condition and heavy shading. The highest value of seedling survival Agathis loranthifolia achieved by paclobutrazol treated seedlings which were stored at the green house and under light shading. Field testing after 3 months plantation showed that paclobutrazol – treated seedlings and seedlings, stored under light shading gave a highest value of seedling survival (100%) and seedling quality index (0,095).Keywords : paclobutarazol hormone, seedling storage technique, recalcitrant seed, seedling survival, seedling quality index.

POTENSI BIOMASSA KARBON TEGAKAN, NEKROMAS (NECROMASS) DAN SERESAH (LITTER) PADA HUTAN PENELITIAN DRAMAGA Hendrawan, Fulki; Satjapradja, Ombo; Dharmawan, I. Wayan S
Jurnal Nusa Sylva Vol. 14 No. 1 (2014): JURNAL NUSA SYLVA
Publisher : Universitas Nusa Bangsa

Human activity and environmental damage increased has led to high level of carbon emission in the atmosphere and led to the global warming. Reducing of carbon emission through sink program which requires estimation data of biomass carbon stock. The aim of this study to determine the potential of stand biomass carbon stock, necromass and litter. The study conducted from April-May 2013. Research location was executed in Dramaga Research Forest, Bogor. The results of this study indicate that potential of biomass carbon stock in Dramaga Research Forest were 225.51 ton biomass/ha and 105.99 ton carbon/ha (trees); 16.00 ton biomass/ha and 8.10 ton carbon/ha (poles); 19.11 ton biomass/ha and 8.98 ton carbon/ha (saplings); 2.01 ton biomass/ha and 0.94 ton carbon/ha (seedlings); 0.92 ton biomass/ha and 0.43 ton biomass/ha (undergrowth); 0.41 ton biomass/ha and 0.19 ton carbon/ha (necromass); 0.86 ton biomass/ha and 0.41 ton carbon/ha (litter). The species dominant for carbon stock are Pinus merkusii, Shorea guiso, Tectona grandis, Dipterocarpus trinervis, Shorea balangeran, Pterygota alata, Hopea mengarawan, Protium javanicum, Quercus sp. and Shorea leprosula.

PEMANFAATAN SUMBER DAYA AIR DI DESA UJUNG JAYA TAMAN NASIONAL UJUNG KULON Ekasari, Emma Yulia; Supriono, Bambang; Satjapradja, Ombo
Jurnal Nusa Sylva Vol. 12 No. 2 (2012): JURNAL NUSA SYLVA
Publisher : Universitas Nusa Bangsa

The availability of adequate water in the quantity, quality and regularity is very important for the survival of any society, especially in the downstream watershed (DAS). Land conversion in the buffer zone is the beginning of the loss of water through runoff volume that should be conserved for the benefit of society. As intelligent creatures, humans play a major role, with the ability to utilize and manage the nature and its contents for the necessities of life. In harnessing water resources, public anticipate floods and drought early. Active role in conserving water especially in the utilization efficiently and wisely. This study was conducted to determine the potential and utilization of water by local communities to meet the needs of households and the availability of water resources in the future for the community.

PENGARUH KONSENTRASI PUPUK ORGANIK CAIR (POC) BIOTON TERHADAP PERTUMBUHAN TRUBUSAN JATI UNGGUL NUSANTARA (Tectona grandis sp.) DI KEBUN PERCOBAAN COGREG UNIVERSITAS NUSA BANGSA Putra, Suriya Adi; Satjapradja, Ombo; Hatta, Mohammad
Jurnal Nusa Sylva Vol. 12 No. 2 (2012): JURNAL NUSA SYLVA
Publisher : Universitas Nusa Bangsa

Jati Unggul Nusantara (JUN) can be propagated vegetative using Coppice System, with the addition ofBioton Liquid Organic Fertilizer. This study aimed to determine the effect of concentration on the growth Coppice Systemof JUN useful Bioton Liquid Organic Fertilizer to expectations providing information enrichment Coppice System of JUN regeneration techniques. Required 25 JUN stump and Bioton as an ingredient and requires a machete/knife, phi band, milli meter scrup, measuring ruler (cm), label, beakers, volumetric pipette, water spray, rubber gloves, tally sheets, stationery and computer processing of the data as a tool. Five levels of concentration treatments given in this study is 1). concentration of 0%(0ml /l) as control, 2). concentration of 5%, 3). concentration of 10% (10 ml / l), 4). concentration of 15% and 5). concentration of 20% with five repetitions at each concentration. Sampling was purposive sampling method and analyzed using a randomized block design (RBD). Average maximum height occurs at a concentration of 5 % ( 300.67cm ) , then 20 % ( 290.90 cm ) , 15 % ( 270.90 cm ) 10 % ( 270.30 cm ) and 0 % ( 265.17 cm ) . Coppice maximum height reached by the end of the observation 375cm at concentrations of 5 %, while the minimum height is 170cm trubusan reached at concentrations of 0 %. Average maximum diameter occurs at concentrations of 5 % with the achievements of diameter 4.29 cm, followed by a concentration of 20 % with the achievements of diameter 4.26 cm, the concentration of 15 % with the achievements of 4.16cm diameter, the concentration of 10 % with the achievements of diameter 3.91 cm and average performance the average minimum diameter is 3.87 cm occurred at concentrations of 0 % or control. Reaches a maximum diameter of 5.63 cm were artifacts at concentrations of 5 %, while achieving a minimum diameter of 2.86 cm at a concentration of 10 %, and there were no coppice disease, but there are leaf-eating caterpillar pests.

POTENSI DAN KOMPOSISI VEGETASI PADA EKOSISTEM HUTAN MANGROVE DI SELAT NASIK KABUPATEN BELITUNG, PROVINSI KEPULAUAN BANGKA BELITUNG (Studi Kasus di Desa Selat Nasik, Kabupaten Belitung, Provinsi Kepulauan Bangka Belitung) Firmansyah, Firmansyah; Satjapradja, Ombo; Supriono, Bambang
Jurnal Nusa Sylva Vol. 13 No. 2 (2013): JURNAL NUSA SYLVA
Publisher : Universitas Nusa Bangsa

Research on Composition and Potential Vegetation in Mangrove Forest Ecosystem has been done in Nasik Strait Belitung, Bangka Belitung Islands Province. In the month of May-July 2013, which includes the location of the research, namely in the village of Nasik Strait (Cape Nyato), Belitung regency. This study was conducted to determine the potency and composition comprising Relative Frequency, Relative density, relative dominance and importance value index any type of Mangrove Plant. Mangrove ecosystem measurements using line transect plot 20 m x 20 m.Identification results obtained by 10 mangrove plant species consisting of 8 true mangrove species (true mangrove) and 2 types of mangrove along (associate mangrove). The results showed that Bruguiera gymnorrhiza has the highest importance value index in the Village Location Nasik Strait (114.46), while the type of Xylocarpus granatum has the lowest critical value (5:57). Water temperatures ranging from 290C and the location of the substrate are sand, silt and clay. Dominant mangrove species composition of mangrove forest ecosystems in the dominance of the five species of mangrove Rhizophora apiculata, Rhizophora mucronata, Brugueira gymnorrhiza, Sonnerata alba and Xylocarpus granatum.

POTENSI PENYU HIJAU (Chelonia mydas L.) SEBAGAI STRATEGI PENGEMBANGAN WISATA EDUKASI DI KAWASAN PANTAI PANGUMBAHAN UJUNG GENTENG SUKABUMI JAWA BARAT Leonita, Geneis Dietri; Satjapradja, Ombo; Meiganati, Kustin Bintani
Jurnal Nusa Sylva Vol. 18 No. 1 (2018): JURNAL NUSA SYLVA
Publisher : Universitas Nusa Bangsa

Pangumbahan beach is one of the areas that has the potential of diverse resources ranging from tourism, agriculture, forestry and especially marine resources and fisheries one green turtle. Pangumbahan into turtle nesting areas and potentially Education tourist, but turtle selling still occurs illegally. For this purpose, this study aims to examine the Green Turtle potential including laying, incubation, and turtle hatching, to find out the visitor's interest in Green Turtle, and to plan the development of Green Turtle-based Education Tourist program to Green Turtle conservation manager. The research method used quantitative and qualitative methods of SWOT analysis with field observation, interview with purposive sampling, and questionnaire. The results showed that in the Pangumbahan Coast Region yielded IFAS 0.64 and EFAS 0.60 from the results then the location of the strategy is in quadrant I.

POTENSI DAN STRATEGI PENGEMBANGAN EKOWISATA DI SITU KEMUNING, KECAMATAN BOJONGGEDE, KABUPATEN BOGOR Jaelani, Rijal; Satjapradja, Ombo; Muttaqin, Zainal
Jurnal Nusa Sylva Vol. 18 No. 2 (2018): JURNAL NUSA SYLVA
Publisher : Universitas Nusa Bangsa

Lake (situ) is one of the aquatic ecosystems that serves as a reservoir of water resources derived from rainwater and from stream flow. Kemuning lake is one of 94 situ in Bogor Regency that located in Sudi Mampir sub Village, Cimanggis Village, Bojonggede District. Kemuning lake potential consists of lake, duck-like rides, teak stands, stretch of weeds, the starfruit tunnel, birds chirping and fishes. The results of the calculation of ecotourism resource assessment shows that the starfruit tunnel occupies the highest potential sequence with a mean value of 5.0, while based on assessment assessors shown the potential that has the highest average value of the lake with an average value of 5.3. Development strategy based on SWOT analysis result shown that Kemuning Situ occupies SO strategy (strength opportunity) with internal factor value 1.53 and external factor value 1.05. In order to support the realization of the Bogor Regency government program which has the tagline "Cibinong City Front Situ" then made Site Plan Kemuning lake area.

POTENSI KESESUAIAN JENIS TANAMAN PADA AREAL LAHAN PASCATAMBANG TIMAH (STUDI KASUS DI KECAMATAN SUNGAI SELAN KABUPATEN BANGKA TENGAH PROVINSI BANGKA BELITUNG) Fanni, Apri; Satjapradja, Ombo; Setyaningsih, Luluk
Jurnal Nusa Sylva Vol. 22 No. 1 (2022): JURNAL NUSA SYLVA
Publisher : Universitas Nusa Bangsa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31938/jns.v22i1.491

In addition to providing benefits, mining activities can result in physical, chemical, biological and marginal changes for plant growth. Criteria of plants used for revegetation of land mines are rapidly growing in the neighborhood marginal, allowing other types of grow on the land, producing fruits that are easily spread by birds, and producing a litter easier undergoing decomposition. This research aims to know the biodiversity and natural vegetation types of suitability identification for revegetation land post-mining tin. Observation of post-mining land was carried out to identify the physical and chemical properties of the soil and the type, density, and distribution of vegetation in the observation plots. Analysis of the suitability of vegetation types with rehabilitation land refers to the criteria in Permenhut No P.4/Menhut-II/2011 with modifications. Soil texture on former tin mining land was dominated by sand, is acidic, and has low nutrients. There were 35 types of plants found, ten species of trees and three types of shrubs among them, which have the potential to be used in revegetating post-tin mining land, namely. i.e., the Acacia mangium, Syzygium buxifolium, Syzygium racemosum Blume, Schima wallichii, Trema orientalis, Eugenia sp., Alstonia angustifolia, Ficus padana, Alstonia scholaris, Vitex pinnata L, Syzygium sp, Melastoma malabthricum dan Melastoma polyanthum.

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