Sifat Kimia dan Proksimat Kayu Tekan Pinus merkusii

2021 ◽  
Vol 5 (1) ◽  
pp. 231
Author(s):  
Adesna Fatrawana ◽  
Deni Setiawan ◽  
Erika Novriyanti ◽  
Deded Sarip Nawawi ◽  
Laswi Irmayanti ◽  
...  
Keyword(s):  
Pinus Merkusii

Kayu memiliki sifat dasar bervariasi berdasarkan jenis dan dalam satu jenis dipengaruhi oleh faktor genetic dan lingkungan. Pembentukan kayu reaksi selama pertumbuhan pohon diikuti oleh perbedaan sifat dasar kayu. Penelitian ini bertujuan untuk menguji perbedaan kadar komponen kimia kayu tekan dan oposit Pinus merkusii Jungh et de Vriese dan pengaruhnya terhadap sifat kayu sebagai bahanenergi. Sampel kayu tekan dan oppsit yang diambil dari potongan kayu berbentuk disk dibuat serbuk berukuran 40-60 mesh. Kadar komponen kimia kayu tekan dan oposit diuji denganmerujuk pada standar TAPPI-1990 dan analisis prosimat merujuk pada standar ASTM-1983. Hasil penelitian menunjukan kayu tekan memiliki kadar selulosa dan hemiselulosa lebih rendah dibandingkan dengan kayu oposit, sedangkan kadar lignin kayu tekan lebih tinggi dibandingkan kayu oposit. Kelarutan kayu dalam air dari kayu tekan tekan lebih rendah, sedangkan kelarutan dalam NaOH 1% lebih tinggi dibandingkan kayu oposit.  Kayu tekan memiliki kadar zat terbang lebih rendah dan karbon terikat lebih tinggi dibandingkan dengan kayu oposit sehingga nilai kalor kayu tekan lebih tinggi dibandingkan kayu opositnya.  Karakteristik kayu tekan tersebut dipengaruhi oleh tingginya kadar lignin dan lebih rendahnya kadar holoselulosa dibandingkan dengan kayu oposit. Kata kunci: kayu tekan, kayu oposit, Pinus merkusii, komponen kimia, analisis proksimat, nilai kalor.

scholarly journals PENILAIAN KESEHATAN KEBUN BENIH SEMAI Pinus merkusii DENGAN METODE FHM (FOREST HEALTH MONITORING) DI KPH SUMEDANG Health Assessment for Seedling Seed Orchard of Pinus merkusii Using FHM (Forest Health Monitoring) Method in KPH Sumedang

2019 ◽  
Vol 9 (2) ◽  
pp. 99-108
Author(s):  
Supriyanto . ◽  
Taufik Iskandar
Keyword(s):  
Health Monitoring ◽  
Forest Health ◽  
Seed Orchard ◽  
Tree Damage ◽  
Damage Level ◽  
Seedling Seed Orchard ◽  
Forest Health Monitoring ◽  
Gum Rosin ◽  
Damage Condition ◽  
Pinus Merkusii

Pine (Pinus merkusii) is tree species that provides timber and gum rosin. To meet the needs of wood and non wood (gum rosin) products, planting by using superior or high quality seeds are needed. Seed procurements for planting are obtained from seedling seed orchard (SSO). However, Cijambu’s SSO was attacked by pine woolly aphid (Pineus boerneri). Therefore, assessment of Cijambu’s SSO needs to be done to evaluate the severity pest attacks that could affect to the quality and the quantity of seed production. Forest Health Monitoring (FHM) method is one of the methods to assess the health level of a stand. The number of trees found in all cluster plots in Cijambu’s SSO were 270 trees. Based on the value of the VCR (Visual Crown Rating), the trees located in all cluster plot have health level between low to high. Based on the value of the VCR showed 38.52% (104 trees) having VCR’s value was high, 49.26% (133 trees) having VCR’s value was middle; 12.22% (33 trees) having VCR’s value was low; and no tree having very low VCR’s value. The average of VCR’s value in all cluster plots were 3.25 and classified as middle health. Based on the value of TDLI (Tree Damage Level Index) from 270 trees in all cluster plot showed that 189 trees (70.00%) in healthy condition; 69 trees (25.56%) in slight damage condition; 11 trees (4.07%) in middle damage condition; and 1 tree (0.37%) in heavy damage condition. The value of damage in all cluster plots (ALI) was 261.22 and classified as in health condition. The trees located in all cluster plots were mostly suitable to be seed sources as 242 trees (89.63%), while 28 trees (10.37%) were not suitable for seed sources.Keywords: Forest Health Monitoring, Pinus merkusii, seedling seed orchard, Tree Damage Level Index, Visual Crown Rating

scholarly journals KERAGAMAN KOMPOSISI JENIS DAN STRUKTUR VEGETASI PADA KAWASAN HUTAN LINDUNG DENGAN POLA PHBM DI BKPH TAMPOMAS, KPH SUMEDANG, PERUM PERHUTANI DIVISI REGIONAL JAWA BARAT DAN BANTEN Species Composition and Vegetation Structure of Protected Forest Area using .

2017 ◽  
Vol 8 (2) ◽  
pp. 123-129
Author(s):  
Cecep Kusmana ◽  
Anggun Rahayu Melyanti
Keyword(s):  
Species Composition ◽  
Plant Species ◽  
Dominant Species ◽  
Forest Area ◽  
Stand Age ◽  
Protection Forest ◽  
Composition Structure ◽  
Forest Status ◽  
Coffee Species ◽  
Pinus Merkusii

BKPH Tampomas is part of the FMU area of Sumedang entirely classified into protected forest area. However, part of treated as CBFM with the aim of involfing the community in forest concervation activities the aim of this research is to describe and compare the structure and composition of the plant species between the subjected to CBFM and non CBFM Tampomas. The reaserch location was based on forest status of the protected area as having the same stand age and tree spacing. Data collection conducted throught the analysis of vegetation and soil sampling at each observation location species richness of BKPH Tampomas protection forest was relatively low either non CBFM of protected forest, CBFM protection forest of coffe and CBFM protection forest of cardamon. At the level of seedling stage there are 9 species and Calliandra haematocephala, the dominant. Species at the pole stage are found 3 species with Pinus merkusii species as the dominant species, at the tree stage are 2 species that dominated by Pinus merkusii. The covercrop found were 30 species and dominated by Lepturus repens. The low soil fertility and sandy soil texture composition also account for the low plant species in the BKPH Tampomas protection forest areas.Key words : CBFM cardamon, CDFM coffee, species composition, structure vegetation, Tampomas Mountain

scholarly journals Vegetation analysis and plant diversity in Pinus Jantho Forest (PJF) nature reserve, Aceh Besar

2021 ◽  
Vol 21 (1) ◽  
Author(s):  
HILMINA ITAWAMERNI ◽  
SAIDA RASNOVI ◽  
ZUMAIDAR ZUMAIDAR
Keyword(s):  
Species Diversity ◽  
Plant Species ◽  
Nature Reserve ◽  
Diversity Index ◽  
Systematic Sampling ◽  
Vegetation Analysis ◽  
High Level ◽  
Piper Aduncum ◽  
Important Value Index ◽  
Pinus Merkusii

Pinus Jantho Forest (PJF) Nature Reserve has unique characteristics and distinctive ecosystem that plays an important role in the preservation of germplasm and the protection of natural resources. The sustainability of the PJF Nature Reserve is strongly determined by vegetation of its constituents. Therefore, an effort is needed to help its management properly, one of which is by knowing the diversity of plants that make up the community in PJF Nature Reserve. The purpose of this research is to analyze the composition and diversity of plant species in PJF Nature Reserve. Data collection and sampling were done using multiple square method. The plots were laid out by systematic sampling. PJF Nature Reserve composed of 111 species from 46 family. The seedling and understorey have the highest number individuals (1028 in total). Then there are 240 individuals at sapling level, 108 individuals at pole, and 72 individuals for tree.  The Euphorbiaceae family has the largest number of species (11 species). The highest Important Value Index (IVI) for seedlings and understorey, sapling and pole, and tree respectively were Chloranthus elatior (11.09%), Piper aduncum (21.90% and 19.32%), and Pinus merkusii (25.52%). The Diversity Index indicates a high level of plant species diversity (3.25-3.63).

scholarly journals The cytotoxic activity of pine needles ethanolic extract of Pinus merkusii on HeLa cell lines

2021 ◽  
Vol 33 ◽  
pp. 03001
Author(s):  
Annise Proboningrat ◽  
Amaq Fadholly ◽  
Sri Agus Sudjarwo ◽  
Fedik Abdul Rantam ◽  
Agung Budianto Achmad
Keyword(s):  
Cytotoxic Activity ◽  
Cell Lines ◽  
Anticancer Agents ◽  
Anticancer Agent ◽  
Ethanolic Extract ◽  
In Vitro Cytotoxicity ◽  
Hela Cell Lines ◽  
Cytotoxicity Assessment ◽  
Pinus Merkusii

Several efforts have been made to discover new anticancer agents based on natural ingredients. Meanwhile, previous studies have shown that different Pine genus species exhibit cytotoxic activity against various types of cancer cells. This plant is rich in phenolic compounds, especially procyanidins, flavonoids, and phenolic acids. Therefore, this study aims to investigate the in vitro cytotoxicity of Pinus merkusii needles extract on HeLa cancer cell lines. The cytotoxicity assessment was measured using MTT assay and expressed as IC50 value. The results showed that the ethanolic extract poses a dose and time-dependent cytotoxic activity with an IC50 value of 542.5 µg/ml at 48 hours of incubation. Based on this result, Pinus merkusii needles’ ethanolic extract has the potential of a novel candidate for an anticancer agent.

scholarly journals Efek Tiga Jenis Pohon Penaung terhadap Keragaman Serangga pada Pertanaman Kopi di Perkebunan Rakyat Manglayang, Kecamatan Cilengkrang, Kabupaten Bandung

Agrikultura ◽  
2017 ◽  
Vol 28 (3) ◽  
Author(s):  
Siska Rasiska ◽  
Abdirrassyiddin Khairullah
Keyword(s):  
Plant Diversity ◽  
Coffea Arabica ◽  
Diversity Index ◽  
Shade Trees ◽  
Gmelina Arborea ◽  
Coffee Plant ◽  
Ecological Value ◽  
Pests And Diseases ◽  
Coffee Plants ◽  
Pinus Merkusii

ABSTRACTThe Effects of Three Types of Shade Trees on the Diversity of Insects in Coffee PlantationArabican coffee (Coffea arabica) is one of the plantation commodities that has economic, social, and ecological value in Indonesia. Commonly, coffee is grown in a shaded condition that will affect the diversity of insects. This research was aimed to study the effects of three types of shade trees on the diversity of insects in coffee plants. This research was conducted at Manglayang Peasant Coffee Plantation, Cipulus Village, Cilengkrang Subdistrict, Bandung Regency and the Entomology Laboratory, Department of Plant Pests and Diseases, Faculty of Agriculture, Universitas Padjadjaran. The method used was descriptive survey through observation with systematic diagonal method in selected locations based on three types of shade trees, namely suren (Toona sureni Merr), white teak (Gmelina arborea Roxb), and pine (Pinus merkusii Jungh). The results showed that diversity index of the insects of coffee plants in suren shade trees was low to medium, and the highest percentage of abundance was Empoasca sp. Coffee plant diversity index of the insects with white teak shade trees were medium with highest percentage abundance in the Agromyzidae family and Emposca sp. Coffee plant diversity index of the insect with pine shading trees was low to moderate with the highest abundance of Empoasca sp. and Agromyzidae family.Keywords: Shade tree, Diversity, Insect, Coffee plantABSTRAKKopi arabika (Coffea arabica) merupakan salah satu komoditas perkebunan yang memiliki nilai ekonomi, sosial, dan ekologis bagi masyarakat Indonesia. Pada umumnya, kopi ditanam pada kondisi ternaungi sehingga akan berpengaruh terhadap keragaman serangga. Penelitian ini bertujuan untuk mengkaji efek dari tiga jenis pohon penaung terhadap keragaman serangga pada pertanaman kopi. Penelitian dilakukan di Perkebunan Kopi Rakyat Manglayang, Desa Cipulus, Kecamatan Cilengkrang, Kabupaten Bandung dan Laboratorium Entomologi, Departemen Hama dan Penyakit Tumbuhan, Fakultas Pertanian, Universitas Padjadjaran. Metode yang digunakan adalah survei deskriptif dengan cara observasi dengan metode diagonal sistematis pada beberapa lokasi yang dipilih berdasarkan tiga jenis pohon penaung, yaitu suren (Toona sureni Merr), jati putih (Gmelina arborea Roxb), dan pinus (Pinus merkusii Jungh). Hasil penelitian menunjukkan bahwa serangga tanaman kopi pada tanaman penaung suren indeks keragamannya rendah sampai sedang, dan persentase kelimpahan tertingginya adalah Empoasca sp. Serangga tanaman kopi dengan pohon penaung jati putih indeks keragamannya sedang dengan persentase kelimpahan tertinggi pada family Agromyzidae dan Emposca sp. Serangga tanaman kopi dengan pohon penaung pinus indeks keragamannya rendah hingga sedang dengan kelimpahan tertinggi Empoasca sp. dan famili Agromyzidae.Kata Kunci: Pohon penaung, Keragaman, Serangga, Tanaman kopi

scholarly journals Diversity of Suillus Fungi from Pine (Pinus merkusii) Stands at Various Locations in Bandung Area, Indonesia

2016 ◽  
Vol 15 (3) ◽  
pp. 95-101 ◽  
Author(s):  
Mustika Dewi ◽  
Rizkita Rachmi Esyanti ◽  
I. Nyoman Pugeg Aryantha
Keyword(s):  
Pinus Merkusii

scholarly journals KARAKTERISTIK AKAR BEREKTOMIKORIZA PADA Shorea pinanga, Pinus merkusii DAN Gnetum gnemon

PERENNIAL ◽  
2010 ◽  
Vol 6 (1) ◽  
pp. 11
Author(s):  
Melya Riniarti ◽  
Irdika Mansur ◽  
Arum Sekar Wulandari ◽  
Cecep Kusmana
Keyword(s):  
Key Words ◽  
Ectomycorrhizal Fungi ◽  
Host Plants ◽  
Clamp Connection ◽  
The Other ◽  
Branching Pattern ◽  
Root Tips ◽  
Hartig Net ◽  
Gnetum Gnemon ◽  
Pinus Merkusii

Morphology and anatomy characteristics often used to identify ectomycorrhizal fungi. We used three Scleroderma spp. (Scleroderma columnare, S. dictyosporum), and S. sinnamariense) and inoculated to Shorea pinanga, Pinus merkusii, and Gnetum gnemon. After 6,8, and 10 months, each root tips were collected to determined hyphae colour, branching pattern, clamp-connection, hartig net and mantle. This result revealed that S. sinnamariense did not form association with S. pinanga and P. merkusii but form association with G. gnemon. On the other hand, S. columnare and S. dictyosporum could form association with all the host plants. S. columnare and S. dictyosporum formed white hyphae while S. sinnamariense formed yellow hyphae with monopodial branching pattern. The depth of hartig net and mantle was increased by timed. Key words: ectomycorrhizal fungi, hartig net, mantle, Scleroderma

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