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INDONESIA
Buletin Kebun Raya
Published by Lembaga Ilmu Pengetahuan Indonesia
ISSN : -     EISSN : -     DOI : -
Core Subject : Agriculture,
Agriculture, Biological Sciences & Forestry
Buletin Kebun Raya adalah publikasi ilmiah resmi dari Pusat Konservasi Tumbuhan Kebun Raya - LIPI. Jurnal ini terbit 2 kali setiap tahun, 2 nomor setiap volume, berisi tulisan ilmiah hasil penelitian, ulasan, atau gagasan asli tentang konservasi tumbuhan, biologi tumbuhan, dan pengembangan perkebunrayaan di Indonesia dan daerah tropis lainnya. Penerimaan naskah dan semua proses redaksional di Buletin Kebun Raya tidak dikenakan biaya. The Botanic Gardens Bulletin is the official scientific publication of the Center for Plant Conservation Botanical Gardens - LIPI. The journal is published two times per year, two numbers each volume, containing scientific literature research, review, or original ideas about conservation of plants, plant biology, and development of botanic gardens in Indonesia and other tropical areas.
Arjuna Subject : -
Articles 6 Documents
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Search results for , issue " Vol 16, No 1 (2013): Buletin Kebun Raya Vol. 16 (1) Januari 2013" : 6 Documents clear
VARIASI SERAPAN KARBONDIOKSIDA (CO2) JENIS-JENIS POHON DI “ECOPARK”, CIBINONG DAN KAITANNYA DENGAN POTENSI MITIGASI GAS RUMAH KACA Hidayati, Nuril; Mansur, M.; Juhaeti, Titi
Buletin Kebun Raya Vol 16, No 1 (2013): Buletin Kebun Raya Vol. 16 (1) Januari 2013
Publisher : Center for Plant Conservation Bogor Botanic Garden, Indonesian Institute of Sciences

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Abstract

This research aims to assess the contribution of biological diversity in CO2 absorption by analyzing the physiological characteristics (CO2 absorption, transpiration, stomatal conductance, leaf chlorophyll content) of tree species in a conservation area of “Ecopark”, Cibinong. The results were meant to provide information on CO2 absorption of some tree species suitable for revegetation. The results showed that there was a wide range of variation of CO2 assimilation rate among tree species. The overall CO2 assimilation rate ranged from 2.86 to 16.45  µmolm-2s-1. The highest CO2 absorption was Pometia pinnata (16.45  molm-2s-1), followed by Garcinia xanthochymus (11.40 µmolm-2s-1), Syzygium polyanthum (10.99 µmolm-2s-1), Syzygium polycepaliodes (10.89 µmolm-2s-1), and Palaquium obtusifolium (10.41 µmolm-2s-1). Transpiration rate was recorded between  1.29 mmolm-2s-1 (Maniltoa grandiflora)  and 7.85 mmolm-2s-1 (Euphoria longan). The rate of CO2 assimilation was affected by solar radiation and thus the quantum leaf (Q leaf), stomatal conductance, as well as leaf chlorophyll content. Trees species that have characteristics of high CO2 absortion and efficient in maintaining water balance (low transpiration rate), are suitable for green house gas mitigation.  
KARAKTERISTIK ANATOMI DAUN DARI SEPULUH SPESIES Hoya SUKULEN SERTA ANALISIS HUBUNGAN KEKERABATANNYA Hafiz, Putra; Dorly, Dorly; Rahayu, Sri
Buletin Kebun Raya Vol 16, No 1 (2013): Buletin Kebun Raya Vol. 16 (1) Januari 2013
Publisher : Center for Plant Conservation Bogor Botanic Garden, Indonesian Institute of Sciences

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Abstract

Hoya has two types of leaves, succulent and non succulent. Succulent plant adapted well in extreme conditions, especially during dry period. Anatomical characters can be used to identify, classify, and determine plant relationship. The aims of this research were to identify anatomical character of succulent Hoya’s leaf and to determine their relationship. Ten examined species Hoya spp. (H. diversifolia, H. latifolia, H. dolichosparte, H. bilobata, H. lacunosa, H. verticillata, H. purpureofusca, H. kuhlii, H. oblanceolata, and H. micrantha) showed anatomical similarity in their epidermal layer, hipodermal, mesophyl, and the absence of sponge tissue at mesophyl. However, there are diversities among the species. Based on paradermal section of the leaf,  two types of stomata were only found at the abaxial side, individual stomata and both individual and stomatal cluster. Hoya diversifolia has the smallest stomatal size, while Hoya latifolia has the biggest. Hoya lacunosa has the lowest stomatal density, while Hoya bilobata has the highest. Hoya diversifolia, Hoya lacunosa, and Hoya oblanceolata have the lowest stomatal index, while Hoya bilobata has the highest. Observation on transversal section showed that Hoya purpureofusca has the lowest leaf thickness, while Hoya kuhlii has the highest. The hierarchical cluster analysis based on anatomical leaf characters showed different patterns of relationship which diversed as three groups at relationship scale 15.
KERAGAMAN DAN ANALISIS KEKERABATAN Hoya spp. BERTIPE DAUN NON SUKULEN BERDASARKAN KARAKTER ANATOMI DAUN Hakim, Aldi Rahman; Dorly, Dorly; Rahayu, Sri
Buletin Kebun Raya Vol 16, No 1 (2013): Buletin Kebun Raya Vol. 16 (1) Januari 2013
Publisher : Center for Plant Conservation Bogor Botanic Garden, Indonesian Institute of Sciences

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Abstract

Hoya spp. (Apocynaceae: Asclepiadoideae) has differences in leaf type, there are succulent and non succulent leaf types.  Anatomical structure of Hoya spp. leaf has not been widely studied, especially for the non succulent type. The aims of this research were to explore the diversity and relationship of non succulent Hoya, based on leaf anatomical characters represented by eight species i.e. H. bandaensis, H. campanulata, H. chlorantha, H. cilliata, H. coriacea, H. coronaria, H. densifolia and H. multiflora. Hoya leaf anatomical characters were observed on the paradermal and transversal section and analyzed by using IBM SPSS version 19 sotfware for cluster analysis. According to the paradermal observation, stomata were present at lower surface (hypostomatic) for all species, and amphistomatic (both surface) for H. densifolia.  The type of stomata is cyclocytic for all species. Clustered stomata were found in H. coriacea.  Observation on transversal section showed that all of species has the normal structure i.e cuticula, upper and lower epidermis, palisade parenchyma and spongy parenchyma with the variation in the layer thickness.  The cluster analysis resulted four groups at distance scale 19. Each group has specific characters. The first group has trichomes on both sides of the leaf surface. The second group has amphistomatic stomatal. The third group has thin leaves. The fourth group has the widest stomata.
Pertumbuhan dan Perkembangan Bibit Rhyncostylis retusa L. (Bl.) (Orchidaceae) pada Konsentrasi Fosfor (P) Berbeda Nurfadilah, Siti
Buletin Kebun Raya Vol 16, No 1 (2013): Buletin Kebun Raya Vol. 16 (1) Januari 2013
Publisher : Center for Plant Conservation Bogor Botanic Garden, Indonesian Institute of Sciences

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Phosphorous (P) is one of the essential minerals for plant growth and development.  The aim of this study is to investigate the effect of Phosphorous on Rhyncostylis retusa seedlings in in vitro culture and to investigate the optimum P concentration for growth and development of the plantlet. Protocorms derived from seed were inoculated on KC (Knudson C) media with a range of P concentrations (0 mM; 0.42 mM; 0.84 mM, and 1.2 mM). The result showed that phosphorus influenced the growth and the development of R. retusa seedlings. Growth and development of the seedlings were inhibited on control treatment (0 MM), while seedlings on P concentration of 0.42 mM; 0.84 mM, and 1.2 mM grew better.
PERKECAMBAHAN DAN PERTUMBUHAN SEMAI Artocarpus altissimus J.J. Smith Sahromi, Sahromi
Buletin Kebun Raya Vol 16, No 1 (2013): Buletin Kebun Raya Vol. 16 (1) Januari 2013
Publisher : Center for Plant Conservation Bogor Botanic Garden, Indonesian Institute of Sciences

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Abstract

The research was conducted to understand seed germination and seedling growth of Artocarpus altissimus. The experimental design used was completely randomized with 2 factors, i.e. seed storability and media factors for the response capacity of germination, media and NPK fertilizer factors for seedling growth response (height and number of leaves). The result showed that A. altissimus seeds had long enough storability/ potential age without a period of dormancy. Storability, media and interaction both showed very significant effect on the germination capacity with the highest mean value on the storability category of 3 and 1 month and media category of compost and sand. On variable of seedlings height, NPK fertilizer showed significant effect, media and interaction of media and NPK had very significant effect with the best factor category was a media category of TSKn (soil, chaff and manure).
POPULATION AND MICROHABITAT OF Gonystylus bancanus (Miq.) Kurz IN DANAU PULAU BESAR-DANAU BAWAH WILDLIFE SANCTUARY, SUMATRA Kusuma, Yayan Wahyu C.; Pribadi, D.O.; Isnaini, Y.
Buletin Kebun Raya Vol 16, No 1 (2013): Buletin Kebun Raya Vol. 16 (1) Januari 2013
Publisher : Center for Plant Conservation Bogor Botanic Garden, Indonesian Institute of Sciences

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Abstract

Ramin (Gonystylus bancanus) is one of the major timber species that facing high exploitation in Indonesia. This species can only be found on a specific peat swamp habitat, thus it confines its distribution. Information on its current population and microhabitat characteristics is relatively limited. Here, we investigated natural population and microhabitat of ramin in a peat swamp area in Riau Province using  random transects consist of 46 (100m2) sampling plots. Forty-eight individuals of ramin were found in which 46 of these belonged to G. bancanus, while the other two were different species. The estimated population density of ramin in this area was 7.18±2.75 individuals/ha i.e there were approximately seven individuals in each one-ha area of study. The population structure of ramin showed a J-shaped curve bearing many large old trees with few saplings without any seedlings. The microhabitat was investigated using the Discriminant Function Analysis (DFA) and Canonical Analysis, generating two significant variables that discriminated three groups of the population.

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