Article Per Year (5 Year)
p-Index From 2020 - 2025
0.408
P-Index
This Author published in this journals
All Journal Journal of Tropical Life Science : International Journal of Theoretical, Experimental, and Applied Life Sciences Proceeding International Conference on Global Resource Conservation Buletin Kebun Raya Journal of Tropical Biodiversity and Biotechnology
Arief Priyadi
Unknown Affiliation
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Environmental Science Health Professions Immunology & microbiology Other

Published : 8 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 8 Documents
Search

 1 
HABITAT ALAMI TUMBUHAN PAKU KIDANG (Dicksonia blumei (Kunze) Moore) DI KAWASAN HUTAN BUKIT TAPAK PULAU BALI Darma, I Dewa Putu; Lestari, Wenni Setyo; Priyadi, Arief
Buletin Kebun Raya Vol 18, No 1 (2015): Buletin Kebun Raya Vol. 18 (1) January 2015
Publisher : Center for Plant Conservation Bogor Botanic Garden, Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Dicksonia blumei (Paku Kidang) termasuk dalam spesies prioritas konservasi Indonesia kategori B. Studi ekologi habitat alaminya di kawasan hutan Bukit Tapak, Bedugul Bali dilakukan dengan metode purposive sampling. Plot dapat dibuat sebanyak 3 (tiga) buah dengan ukuran 20 x 20 m untuk jenis tumbuhan pohon dan 2 x 2 m untuk jenis tumbuhan bawah. Berdasarkan hasil pengamatan Dicksonia blumei (Paku Kidang) pada habitat alaminya di kawasan hutan Bukit Tapak. Jenis paku ini tumbuh pada kondisi lingkungan fisik dengan kisaran ketinggian tempat antara 1.754–1.794 m dpl., kemiringan tanah berkisar antara 7–10%, pH tanah 6,4–7, kelembaban tanah 50–75%, temperatur 20,5–22,3°C, kelembaban udara 83,2–87,5% dan intensitas cahaya 618–10.030 Lux. Karakteristik komponen lingkungan biotiknya ditentukan berdasar Indek Nilai Penting (INP). Lima jenis tumbuhan pohon dengan INP tertinggi adalah Cyathea latebrosa (INP 98,7) kemudian diikuti oleh Saurauia bracteosa (INP 51,9), Astronia spectabilis (INP 42,7), Dicksonia blumei (INP 39,6) dan Homalantus giganteus (INP 35,3). Karakteristik jenis tumbuhan bawah untuk lima jenis tertinggi diduduki oleh Pillea sp. (INP 61,91), kemudian diikuti oleh Selaginella sp. (INP 40,6), Athyrium asperum (INP 27,5), Pteris tripartita (INP 18,3) dan Rubus sp. (INP 15,0). Kebersamaan tumbuhnya D. blumei dengan Cyathea latebrosa, tampaknya terkait dengan peran batangnya sebagai substrat spora D. blumei pada tahap perkecambahan dan pertumbuhan selanjutnya. Pada fase gametofit dan sporofit muda D. blumei tumbuh secara epifit pada batang Cyathea latebrosa setinggi 0,5–1,5 m dari permukaan tanah. Seiring dengan pertumbuhan akarnya yang berlahan-lahan mencari tanah, kemudian sporofit dewasa D. blumei akan tumbuh secara teresterial (hemi–epifit).
Plant Collections of Bali Botanic Garden Potentially Used As Organic Pesticides Wibawa, I Putu Agus Hendra; Priyadi, Arief
Proceeding International Conference on Global Resource Conservation Vol 4, No 1: Proceeding of 4th ICGRC 2013
Publisher : Proceeding International Conference on Global Resource Conservation

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (0.209 KB)

Abstract

Along with society awareness of the importance of healthy life, demand of agricultural products which are pesticide residues free has been increasing. Recently, efforts to control plant pests and diseases by farmers have been relied on synthetic pesticides. Utilization of this kinds of pesticides results in various diseases such as cancer, fetal defects, infertility, liver diseases, and so on.  One of the alternatives which can be chosen to minimize those negative effects is using organic pesticides. Its ingredients are organic compounds which easily degraded, do not pollute the environment and relative safe for humans and livestock because its residues are degradable. Indonesia is one of countries with biggest biodiversity in the world, so it has great opportunities to produce organic pesticides. Bali Botanic Garden (BBG) is a government institution which plays role to conserve various kinds of plants from their natural habitats, especially the threatened species. This activity was aimed at knowing how many plant collections in BBG which have potency as organic pesticides and their specific functions whether as fungicides, insecticides, bactericides, rodenticides, nematicides, molluscicides, or fish poisons. The results show that there were 23 plants which have potency as organic pesticides. From that group, 22 kinds act as insecticides, 7 as fungicides, 5 as nematicides, 3 as molluscicides, rodenticides, fish poisons (pissicides), and bactericides respectively.Keywords: organic pesticides, Bali Botanic Garden, plant collections Keywords: organic pesticides, Bali Botanic Garden, plant collections
Association of Spheranthus africanus (Asteraceae) with other Weeds In a Fallowed Rice Field Priyadi, Arief; Wibawa, I Putu Agus Hendra; Lugrayasa, I Nyoman
Proceeding International Conference on Global Resource Conservation Vol 4, No 1: Proceeding of 4th ICGRC 2013
Publisher : Proceeding International Conference on Global Resource Conservation

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (0.209 KB)

Abstract

Spheranthus africanus is a minor weed of rice, which can be utilized for various purposes. It can be used for phytoremediation of soil contaminated with Pb and also reported to have anti-bacterial activity to be used as natural pesticides. However, because of its minority status little is known about this species in its natural habitat. This study was aimed to understanding the relationship between S. africanus with other weed species in a fallowed paddy field in Tabanan District, Bali, Indonesia. Vegetation analysis by quarter method was done in the rice field, where the species had occurred, in 2011 and 2012. Determination of association type between S. africanus with other weed was conducted by using 2x2 contingency table to calculate χ2, association coefficient (AC) and Ochiai index (OI). The result shows that the Shannon diversity index in this same area for the two consecutive years were 2.06 and 2.48 with species richness of 22 and 27 respectively. Calculation of Summed Dominance Ratio (SDR) showed that the species composition was not evenly distributed, in other words some species dominated others. In terms of association, although S. africanus mainly has no association with most of the weed species in the field, it prominently has positive association with Lindernia ciliata, and Digitaria ciliaris, with no significant negative association. Keywords: diversity, species association, Spheranthus africanus
Taking inventory of Orchid Types in a Region of Tambora Mountain - Sumbawa Island Wibawa, I Putu Agus Hendra; Peneng, I Nyoman; Priyadi, Arief
Proceeding International Conference on Global Resource Conservation Vol 4, No 1: Proceeding of 4th ICGRC 2013
Publisher : Proceeding International Conference on Global Resource Conservation

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (0.209 KB)

Abstract

Indonesia is well known as one of the countries with high biodiversity in the world, including its orchids. It is expected that there are 6,000 kinds of orchids which grow wildly in forest regions around the world. Along with accelerated forest destructions in Indonesia, due to land conversions or natural disasters, the existence of orchids in their natural habitats is threatened. It is likely that some of these richness could be lost before they can be conserved and known of their functions. Regions of Tambora mountain in Sumbawa island have biodiversity that had not been revealed. Therefore, taking inventory of flora in that region is very crucial to be done as soon as possible. This activity was aimed at saving biodiversity especially rare and endemic orchids there, and also quantitatively knowing richness and frequency of orchids species which are found. From the research, it is known that there were 22 orchids species, from which only one is terrestrial and the rests are epiphytes. In terms of richness, there were some orchids which were common and also rare. Keywords: orchids, Tambora Mountain, conservation, exploration
Selecting Tree Species with High Carbon Stock Potency from Tropical Upland Forest of Bedugul-Bali, Indonesia Priyadi, Arief; Sutomo, Sutomo; Darma, I Dewa Putu; Arinasa, Ida Bagus Ketut
Journal of Tropical Life Science Vol 4, No 3 (2014)
Publisher : Journal of Tropical Life Science

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Selecting Tree Species with High Carbon Stock Potency from Tropical Upland Forest of Bedugul-Bali, Indonesia Arief Priyadi; Sutomo Sutomo; I Dewa Putu Darma; Ida Bagus Ketut Arinasa
Journal of Tropical Life Science Vol. 4 No. 3 (2014)
Publisher : Journal of Tropical Life Science

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Vegetation studies to reveal tree diversity and its contribution to carbon stock were conducted in three differ­ent sites of upland forest in Bali, Indonesia. The sites were located approximately 60 km north of the Bali Province capital city of Denpasar in an area named Bedugul. Those three sites were Mt. Mangu (forest area east of Beratan lake), forest area west of Buyan lake and forest area south of Tamblingan lake. There were 44, 29, and 21 tree species of 14, 19, 14 families with Shannon Diversity Index (H) of 2.87, 2.64 and 1.69 respectively. Carbon stock average of above ground tree biomass from these sites were 214.2, 693.0 and 749.1 ton.ha-1 respectively. Tree species with top Summed Dominance Ratio (SDR) in each of those sites were Platea latifolia in Mt. Mangu, Plan­chonella sp. in Buyan, and Tabernaemontana macrocarpa in Tamblingan. Average carbon content of these three species were 493.25, 12,876.26 and 40.35 kg.ha-1 respectively.
The Complete Chloroplast Genome of Medinilla tapete-magicum (Melastomataceae) from Sulawesi, Indonesia Priyadi, Arief; Kuswandi, Paramita Cahyaningrum; Yulianti, Evy; Pratiwi, Risha Amilia; Asih, Ni Putu Sri
Journal of Tropical Biodiversity and Biotechnology Vol 9, No 2 (2024): June
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jtbb.87932

Abstract

In this study, the genome of an endemic Sulawesi’s plant, Medinilla tapete-magicum was sequenced using Illumina NextSeq 500 and assembled the whole chloroplast genome. Results showed that the cpGenome is 155,602 bp in size with typical quadripartite structure of a large single copy (LSC) region (85,409 bp), a short single copy (SSC) region (16,629 bp), and a pair of inverted repeats (IRs) regions (26,782 bp). The cpGenome is composed of 132 genes, which consists of 87 protein coding genes, 37 tRNAs, and 8 rRNAs. The sliding window analyses showed that psbB-psbH and ndhF-rpl32 can potentially be used as markers. Microsatellite motifs of mononucleotide A and T dominated in the cpGenome. The phylogenetic trees from the concatenated 76 shared protein coding gene sequences showed the Medinilla clade was monophyletic and M. tapete-magicum is a sister species in the SE Asian clade which contain M. magnifica and M. speciosa. 
Analysis of trnL- trnL- trnF Intergenic Spacer and matK Sequences Combined with Morphological Observations Showed Pucuk Seminyak from Riau is Champereia manillana var. manillana Merr.: trnL-trnL-trnF Intergenic Spacer and matK on Pucuk Seminyak Roslim, Dewi Indriyani; Herman; Budiono, Deanne Yoshe Fidela; Cahyati, Isa Endar; Lestari, Wahyu; Novita, Linda; Priyadi, Arief
Journal of Tropical Life Science Vol. 14 No. 3 (2024)
Publisher : Journal of Tropical Life Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11594/jtls.14.03.13

Abstract

A taxonomic status of Pucuk Seminyak plant is still unclear. This plant has a fruit like Melinjo (Gnetum gnemon) fruit and is often classified as a member of Gnetaceae family. This study aims to determine the taxonomic status of Pucuk Seminyak from Riau using trnL-trnL-trnF intergenic spacer (IGS) and matK sequences. Methods included leaf samples from three individuals collected from the Kampar Regency, Riau Province, total DNA extraction, electrophoresis, polymerase chain reaction (PCR), and data analysis. The results showed that the trnL-trnL-trnF IGS DNA sequences from the three samples of Pucuk Seminyak were obtained 937 bp length, while the matK had a size of 775 bp. These sequences have been registered in GenBank with registration numbers OQ174512, OQ174513, and OQ174514 for trnL-trnL-trnF IGS, and OQ174525, OQ174526, and OQ174527 for matK. The highest similarity was found between Pucuk Seminyak and Champereia manillana with an identity value of 99.67% based on trnL-trnL-trnF IGS and 99.74% based on matK. BLASTn analysis by default settings and organism Champereia (taxid: 50116) resulted in hits on the Champereia genus of the Opiliaceae. Further phylogenetic analysis placed the study objects in the Champereia clade (bootstrap support 49 for trnL-trnL-trnF, 68 for matK, and 71 for concatenated sequences). Lastly, identification by morphological characters also confirmed that the specimen agreed with the description and identification key for C. manillana. The species is classified into two varieties: var. longistaminea and var. manillana. The former was distributed in Southwest China, and the latter was distributed in Malesia to India. Furthermore, the phylogenetic analysis separated the two varieties into different clades. Therefore, it can be concluded that our specimen of Pucuk Seminyak is identified as C. manillana var. manillana Merr. (Opiliaceae).
Co-Authors Asih, Ni Putu Sri Budiono, Deanne Yoshe Fidela Cahyati, Isa Endar Dewi Indriyani Roslim Evy Yulianti Herman I Dewa Putu Darma I Dewa Putu Darma I Nyoman Lugrayasa I Nyoman Peneng I Putu Agus Hendra Wibawa Ida Bagus Ketut Arinasa Ida Bagus Ketut Arinasa Linda Novita Paramita Cahyaningrum Kuswandi Pratiwi, Risha Amilia Sutomo Sutomo Sutomo Sutomo Wahyu Lestari Wenni Setyo Lestari, Wenni Setyo