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All Journal HAYATI Journal of Biosciences MANAJEMEN HUTAN TROPIKA Journal of Tropical Forest Management Jurnal Ilmu Pertanian Indonesia MEDIA KONSERVASI Journal of Tropical Life Science : International Journal of Theoretical, Experimental, and Applied Life Sciences Jurnal Ilmu Lingkungan Indonesian Journal of Applied Sciences BIOTROPIA - The Southeast Asian Journal of Tropical Biology Jurnal Ilmu Komputer dan Agri-Informatika Jurnal Penelitian Hutan dan Konservasi Alam Jurnal Penelitian Hasil Hutan JURNAL PEMULIAAN TANAMAN HUTAN JURNAL PERBENIHAN TANAMAN HUTAN AGRIVITA, Journal of Agricultural Science Jurnal Pengelolaan Sumberdaya Alam dan Lingkungan (Journal of Natural Resources and Environmental Management) International Journal of Advances in Intelligent Informatics JURNAL BIOLOGI INDONESIA ZOO INDONESIA Indonesian Journal of Chemistry Forest and Society Jurnal Ilmu dan Teknologi Kayu Tropis Journal of Sylva Indonesiana Jurnal Penelitian Hasil Hutan Zoo Indonesia JURNAL HUTAN TROPIS Journal Of Sustainability Perspectives Jurnal Komputer Teknologi Informasi Sistem Komputer (JUKTISI) Journal of Sustainability Perspectives Indonesian Journal of Forestry Research
ISKANDAR ZULKARNAEN SIREGAR
Departement Of Silviculture, Faculty Of Forestry, Bogor Agricultural University, PO Box 168, Bogor 16680, Indonesia
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Education Energy Engineering Environmental Science Immunology & microbiology Materials Science & Nanotechnology Public Health Social Sciences Veterinary Other

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ADAPTABILITY OF WHITE JABON (Anthocephalus cadamba MIQ.) SEEDLING FROM 12 POPULATIONS TO DROUGHT AND WATERLOGGING Sudrajat, Dede J.; Siregar, Iskandar Z.; Khumaida, Nurul; Siregar, Ulfah J.; Mansur, Irdika
AGRIVITA, Journal of Agricultural Science Vol 37, No 2 (2015)
Publisher : Faculty of Agriculture University of Brawijaya and Indonesian Agronomic Assossiation

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Abstract

 The study was carried out for investigation of the adaptability of white jabon seedlings from 12 populations to drought and water logging stresses in a controlled green house. The results showed that the adaptive responses of white jabon seedling to drought and waterlogging stresses were affected by genotype (population). The drought and waterlogging stresses significantly inhibited plant growth, biomass accumulation and allocation, leaf area, also decreased chlorophyll content, increased carotenoids contents, and accumulated free proline. Relative water content and specific leaf area tended to be higher in waterlogging and declined in drought stresses.  The result clearly indicated that white jabon seedlings were more adaptive to waterlogging than to drought stresses. Moreover, there were different responses to drought and waterlogging stresses between the twelve populations. Kampar, Gowa, Kuala Kencana and OKI populations exhibited higher growth performance and stress tolerance index to be adapted to waterlogging stress, while Gowa, Pomalaa and Kampar populations had relatively better growth performance in the drought stress. Keywords: Anthocephalus cadamba, genotype, growth, population, stress tolerance index 
UJI PERTUMBUHAN STEK CEMARA SUMATRA Taxus sumatrana (Miquel) de Laub. R., Henti Hendalastuti; Subiakto, Atok; Siregar, Iskandar Z.; Supriyanto, Supriyanto
Jurnal Penelitian Hutan dan Konservasi Alam Vol 7, No 3 (2010): Jurnal Penelitian Hutan dan Konservasi Alam
Publisher : Pusat Penelitian dan Pengembangan Hutan

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Abstract

Cemara sumatra (Taxus sumatrana (Miquel) de Laub.) merupakan pohon penghasil taxane, zat aktif obat berkhasiat penyakit kanker. Perbanyakan bibit cemara sumatra bermasalah, karena sulitnya mendapatkanbenih dan perkecambahan benihnya memerlukan perlakuan khusus. Teknik stek merupakan alternatif yang potensial untuk perbanyakan bibit jenis ini. Tujuan dari penelitian ini adalah untuk memperoleh informasitentang pengaruh media terhadap pertumbuhan akar stek cemara sumatra. Sumber bahan stek berasal dari pohon dewasa yang tumbuh alami di Gunung Kerinci, Jambi. Media yang digunakan terdiri dari campuran serbuk kelapa : sekam padi (1:1 v/v), serbuk kelapa : sekam padi : tanah (1:1:1 v/v), dan serbuk kelapa : sekam padi (2:1 v/v).  Pengamatan terhadap perkembangan akar stek cemara sumatra dilakukan dengan menggunakan prosedur mikroteknik. Hasil penelitian menunjukkan bahwa dari semua variabel yang diamati, media hanya berpengaruh nyata terhadap kemampuan berakar stek.  Ketiga media yang dicobakan, campuran serbuk kelapa dan sekam padi pada perbandingan 2:1 v/v memberikan hasil terbaik untuk kemampuanberakar (66,7%).  Hasil dari pengamatan pertumbuhan dan perkembangan akar diketahui bahwa akar pada stek cemara sumatra berasal dari sel-sel meristem pada kambium
Peranan Burung sebagai Agen Penyebaran Benalu pada Jati di Kebun Benih Klonal (KBK) Padangan, Perum Perhutani Muttaqin, Zainal; Budi R., Sri Wilarso; Wasis, Basuki; Siregar, Iskandar Z.; Corryanti, Corryanti
ZOO INDONESIA Vol 25, No 2 (2016): Desember 2016
Publisher : Masyarakat Zoologi Indonesia

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Abstract

Tujuan penelitian ini ialah untuk menelaah peranan burung sebagai agen penyebaran benalu yang menginfeksi tegakan jati di Kebun Benih Klonal (KBK) Padangan. Rancangan penelitian berupa Petak Contoh Pengamatan (PCP) terdiri atas Petak Ukur Pengamatan (PUP-PUP) berukuran 50m x 50m sebanyak empat PUP dalam unit PCP dibedakan pada tingkat serangan benalu ringan, sedang, berat dan kontrol. Metode penilaian peranan burung menggunakan focal animal sampling dengan cara pengamatan perilaku burung yang berinteraksi dengan jenis benalu dominan Dendrophthoe pentandra pada jati; dilengkapi inventarisasi jumlah, kelimpahan relatif, dan penyebarannya menggunakan metode IPA (Index ponctualle de’Abondance). Hasil pengamatan menunjukkan terdapat tiga kelompok peranan burung sebagai agen penyebaran benalu ialah: 1) specialist frugivor ialah pemakan buah yang menangani buah benalu secara lengkap dengan cara defekasi, regurgitasi, dan pecking meliputi cabai jawa (Dicaeum trochileum), cabai polos (Dicaeum concolor), cabai gunung (Dicaeum sanguinolentum), dan khusus cucak kutilang (Pynonotus aurigaster) yang menangani buah benalu secara regurgitasi dan pecking dianggap sebagai secondary dispersers, 2) generalist frugivor yang menangani buah benalu secara tidak lengkap dianggap penyebar tambahan (occasionally dispersers) meliputi madu sriganti (Nectarinia jugularis), cinenen pisang (Orthotomus sutorius), madu jawa (Aethopyga mystacalis), 3) opportunistic frugivor yang tidak menangani buah benalu atau berkaitan tidak langsung dengan penyebaran biji benalu sebanyak 13 jenis burung lainnya. Parameter populasi burung menurut jumlah, kelimpahan relatif dan penyebarannya yang luas mencakup lima urutan teratas ialah cabai jawa (D. trochileum), madu sriganti (N. jugularis), bondol jawa (Lonchura leucogastroides), sepah hutan (Pericrocotus flammeus), cucak kutilang (Pynonotus aurigaster).
Genetic Variation of Agathis loranthifolia Salisb. in West Jawa Assessed by RAPD Yunanto, Tedi; Djamhuri, Edje; Siregar, Iskandar Z.; Ulfah, Mariyana
JURNAL BIOLOGI INDONESIA Vol 7, No 1 (2011): JURNAL BIOLOGI INDONESIA
Publisher : Perhimpunan Biologi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/jbi.v7i1.3125

Abstract

ABSTRAKVariasi Genetika Agathis loranthifolia Salisb Jawa Barat Menggunakan Analisis RAPD.Agathis loranthifolia Salisb merupakan salah satu tumbuhan hutan yang menghasilkan hasilhutan bukan berupa kayu yaitu berupa getah. Untuk mengetahui derajad variasi genetika darijenis ini maka dicoba dianalisis menggunakan RAPD. Sampel daun tumbuhan ini di perolehdari Perum Perhutani Cianjur dan Garut. Variasi genetika populasi tumbuhan ini dari Cianjursebesar He = 0.1952 atau lebih tinggi dari populasi asal Garut (He = 0.1125). Namun berdasarkanproduksi copalnya menunjukkan bahwa variasi genetika pohon Lanang paling tinggi He =0.2105Kata kunci: RAPD, kopal, Agathis loranthifolia
Keragaman Genetik Pertumbuhan dan Hubungannya dengan Penetrasi Pilodyn pada Uji Provenansi-Keturunan Jabon (Neolamarkcia cadamba (Roxb) Bosser) di Parung Panjang, Bogor) (Genetic Variation of Growth and Its Relationship with Pilodyn Penetration on Provenance-Progeny Trial of Jabon (Neolamarkcia cadamba (Roxb) Bosser) at Parung Panjang, Bogor) Anna, Nelly; Siregar, Iskandar Z; Supriyanto, Supriyanto; Karlinasari, Lina; Sudrajat, Dede J
Jurnal Ilmu dan Teknologi Kayu Tropis Vol 16, No 2 (2018): Jurnal Ilmu dan Teknologi Kayu Tropis
Publisher : Jurnal Ilmu dan Teknologi Kayu Tropis

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Abstract

Jabon (Neolamarkcia cadamba (Roxb) Bosser) is a fast growing and preferred species as material for various wood industries. However, the growth and quality information of its wood is still limited. This study aims to assess the characteristics of growth, physical properties of wood, genetic parameters of growth and physical properties of wood, and its relationship with pilodyn penetration on provenance-progeny trial of jabon in Parung Panjang, Bogor. Measurement of growth characteristics was performed on height and diameter at breadst height (DBH), whereas the physical properties of wood (density, specific gravity, and moisture content) were performed using core samples (destructive methods) and density estimation with pilodyn (nondestructive method). Statistical analysis explains that there are significant differences between provenances in height, diameter, pilodyn penetration, density, and specific gravity, except for moisture content. The mean of plant survival percentage of 36 months old jabon was 52.8%. The relationship between growth character and the physical properties of wood with pilodyn penetration is negative and weak, except in moisture content, positive but weak. The estimation of individual heritability value ranges from 0.011 to 0.183, while heritability of the family ranges from 0.017 to 0.308.Keywords: growth, heritability, jabon, physical properties, pilodyn penetration
GENETIC VARIATION OF AGATHIS LORANTHIFOLIA SALISB. IN WEST JAWA ASSESSED BY RAPD Yunanto, Tedi; Djamhuri, Edje; Siregar, Iskandar Z.; Ulfah, Mariyana
JURNAL BIOLOGI INDONESIA Vol 7, No 1 (2011): JURNAL BIOLOGI INDONESIA
Publisher : Perhimpunan Biologi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/jbi.v7i1.3125

Abstract

ABSTRAKVariasi Genetika Agathis loranthifolia Salisb Jawa Barat Menggunakan Analisis RAPD.Agathis loranthifolia Salisb merupakan salah satu tumbuhan hutan yang menghasilkan hasilhutan bukan berupa kayu yaitu berupa getah. Untuk mengetahui derajad variasi genetika darijenis ini maka dicoba dianalisis menggunakan RAPD. Sampel daun tumbuhan ini di perolehdari Perum Perhutani Cianjur dan Garut. Variasi genetika populasi tumbuhan ini dari Cianjursebesar He = 0.1952 atau lebih tinggi dari populasi asal Garut (He = 0.1125). Namun berdasarkanproduksi copalnya menunjukkan bahwa variasi genetika pohon Lanang paling tinggi He =0.2105Kata kunci: RAPD, kopal, Agathis loranthifolia
Spatial Variability of Fruit and Seedling Growth of Mindi (Melia azedarach L.) in Community Forest, West Java, Indonesia Irmayanti, Laswi; Siregar, Iskandar Zulkarnaen; Pamoengkas, Prijanto
Journal of Tropical Life Science Vol 5, No 3 (2015)
Publisher : Journal of Tropical Life Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11594/jtls.05.03.09

Abstract

Mindi (Melia azedarach L.) is mostly found in community forests of West Java. One of the important factors affecting productivity of community forests is the use of quality seed. Due to scarcity of seed sources, however, seed quality is not easily available. Currently, community forests serve also as ad hoc seed sources that are usually without appropriate quality assessment. This research was aimed to determine baseline information on spatial variability of mindi fruits collected from five seed sources, and seedling growths treated in seven different growing media consisting mixtures of soil, rice husk, sand and cattle manure. Five mindi populations were selected in the following villages: Nagrak (Bogor), Babakan Rema (Kuningan), Padasari (Sumedang), Sukakarya (Bogor) and Gambung (Bandung). The results showed that variability of seed dimension (CV=4.82-14.37%) and seedling growth (11.79-21.77%) were moderate. The mindi fruits from Nagrak were found to be the biggest in terms of size (1.22 ± 0.17 cm), weight (0.40 ± 0.04 g), and seed set (85.47 ± 15.09%). In addition, the seedling growth from Nagrak was also better than those of other villages showing its potential for future seed sources. Growing media containing cattle manure were observed consistently to be the best for seedling growth. The findings are useful in supporting scientifically the selection of seed sources from community forests.
Inference on the Possible Causes of Segregation Distortion from Open Pollination Progenies of Merkus Pine (Pinus merkusii) ISKANDAR ZULKARNAEN SIREGAR; TEDI YUNANTO
HAYATI Journal of Biosciences Vol. 15 No. 4 (2008): December 2008
Publisher : Bogor Agricultural University, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (76.801 KB) | DOI: 10.4308/hjb.15.4.173

Abstract

Methods of analysis to infer the possible causes of segregation distortion were carried out using single tree progenies of Pinus merkusii. Tests on the progenies of the seed trees showing significant segregation distortion were performed at six gene loci, i.e. GOT-C, GOT-D, PGM-B, SKDH-A, NDH-A, and FDH-A. Results indicated that most fertilisation combination between female and male gametes occurred randomly. This study revealed that 11 out of 17 cases of distortion were detected in both gametes, while the other six were detected only in female gamet. The primary sources of such segregation distortions are discussed regarding to linkage relationships system of mating and post-zygotic viability selection. Key words: Pinus merkusii, segregation distortion, system of mating, viability selection
Evaluasi Pertumbuhan dan Keragaman Genetik Tanaman Palahlar Gunung (Dipterocarpus retusus blume.) dan Palahlar (Dipterocarpus hasseltii blume.) Berdasarkan Penanda RAPD Detty Sumiyati; Fifi Gus Dwiyati; I Istomo; Iskandar Zulkarnaen Siregar
Jurnal Manajemen Hutan Tropika Vol. 15 No. 3 (2009)
Publisher : Institut Pertanian Bogor (IPB University)

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Abstract

Dipterocarpus hasseltii (palahlar) and Dipterocarpus retusus (mountain palahlar) are plant species of Dipterocarpaceae family that originate from West Java which population is getting rare. Information about growth development and genetic variation of palahlar is important to support culturing program and its genetic conservation. One of the techniques to study palahlar growth is through observation of the plant height and stem diameter increment. DNA analysis is use to gain information of palahlar genetic diversity. One of the DNA based molecular marker widely used as plant genetic marker is RAPD. There were 2 primary that resulting the best amplifying quality in genetic diversity analysis that was OPO-13 dan OPY 20. Analysis result with POPGENE 32 was resulting average genetic diversity between classes as much as 0.1869. The biggest genetic diversity for palahlar was on the medium growth class  as much as 0.2498 dan for mountain palahlar was in small growth class as much as 0.2240. Cluster analysis shows that there were 2 big groups that were medium-high growth class group   and small growth class group. Dendrogram shows that there were 2 species in one group, that was palahlar and mountain palahlar that was in one group of small growth class. The closed genetic distance existed between medium growth class group of palahlar and high growth class group (0.0383), while the far distance is between palahlar of small growth class group  with mountain palahlar of mediaum growth class group as much as 0.1826.
Flower Initiation, Morphology, and Developmental Stages of Flowering-Fruiting of Mindi Dida Syamsuwida; Endah Retno Palupi; Iskandar Zulkarnaen Siregar; Andry Indrawan
Jurnal Manajemen Hutan Tropika Vol. 18 No. 1 (2012)
Publisher : Institut Pertanian Bogor (IPB University)

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Abstract

The study was aimed to determine flower initiation, floral morphology and to observe the stages of flowering and fruit development of mindi (Melia azedarch L) within a population for one period of time 2008–2009. The methods used were observing directly over the trees and some vegetatives and generatives buds were sampled for dissecting. The observation revealed that the inflorescence type of mindi was panicle, located at the end of a branch. The number of flower varied among inflorescences, ranged between 30–80 that bloomed simultaneously. The flower was hermaphroditic with position of anther was closed to stigma that selfing might be happened. Usually, the ovary contained 5 ovules that developed into seeds. Reproductive cycle was proceeded for 6–7 months within the year, first observation commenced from flower initiation that occur in August, generative buds to flower burst in September–October. Early fruits were formed in October–November and fruits reached physiological-maturity in January–February. Reproductive success was 34%, indicated that the rate of fertilized ovules proportion to be potencially viable seeds were relatively low.
Co-Authors . Yulianti Aam Aminah Abdul Munif Aditya Nugroho Adzkia, Ulfa Agus Astho Pramono Agus Buono Agus Purwito Agus Wahyudi Alfi Hudatul Karomah Ali Mukmin Aminah . Aminuyati Andi Sukendro Andry Indrawan Ani Suryani Anita, Vilda Puji Dini Arida Susilowati Iswanto Arif Satria Arrofaha, Nawwall Atok Subiakto Ayyasy, Yahya Baiquni Rangkuti, Ahmad Basuki Wasis Budi Tjahjono Cartealy, Imam Civi Cecep Kusmana Corryanti Corryanti Corryanti Corryanti Dede J Sudrajat Dede J. Sudrajat Dede J. Sudrajat Deden Derajat Matra Detty Sumiyati Dida Syamsuwida Dida Syamsuwida Dien Atin Boritnaban Divi Handoko Dodik Ridho Nurrochmat Edje Djamhuri Endah R Palupi Endah Retno Palupi Erdy Santoso Ervizal A.M. Zuhud Ervizal AMZU Eryna Elfasari Rangkuti Fifi Gus Dwiyanti Fifi Gus Dwiyati Fredisa, Yoga Harisson, Rhett D. Hartati Hartati Hartati, N Sri Henti Hendalastuti R., Henti Hendalastuti Henti Rosdayanti Henti Rosdayanti, Henti Imam Wahyudi Indrawan, Imam Wahyudi Irdika Mansur Irsyad Kamal Ishak Yassir Istomo . Karlisa Priandana Kaswanto, Regan L. Kissinger Kissinger Ko Harada Koichi Kamiya Koichi Kamiya Kosasih, Akhmad Kustiyarini, Nur Fadila KUSUMADEWI SRI YULITA Laswi Irmayanti Laswi Irmayanti, Laswi Latifah K. Darusman Latifah K. Darusman Lina Karlinasari Lutfy Abdulah Majiidu, Muhammad Matra, Deden Derajat Mohamad Rafi Mr. Kissinger Muhammad Majiidu Muhammad Rafi Muttaqin Muharam, Karima Fauziah Murdaningsih Haeruman K. Muttaqin, Muhammad Rafi Muttaqin, Zainal Nasution, Tegar Alami Nelly Anna Nurul Khumaida Prijanto Pamoengkas Putra, Heriansyah Rachmat, Henti Hendalastuti Rahila Junika Tanjungsari Rahman, Mohamad Miftah Rangkuti, Reyhan Abdillah rima siburian Septaningsih, Dewi Anggraini Silalahi, Mangarah Siregar, Ulfa Juniarti Situmorang, Rizki Andista Pandapotan Slamet, Alim Setiawan Sri Wilarso Budi R Supatmi Supatmi Supriyanto Supriyanto Supriyanto Supriyanto Suria Darma Tarigan Suryanto Suryanto Suseno Amien Susila, Susila Syaiful Anwar Syamsidah Rahmawati, Syamsidah Tedi Yunanto Tedi Yunanto Ulfah Juniarti Siregar Ulfah, Mariyana Ulfah, Mariyana Wati, Ridha Wijayanto, Nurheni Wisnu Ananta Kusuma Yayat Hidayat Yulianti Bramasto Zainal Muttaqin