Articles

THE DIVERSITY OF EPIPHYTIC FERN ON THE OIL PALM TREE (ELAEIS GUINEENSIS JACQ.) IN PEKANBARU, RIAU Sofiyanti, Nery
Jurnal Biologi Udayana Vol 17 No 2 (2013): Jurnal Biologi
Publisher : Program Studi Biologi, Fakultas Matematika dan Ilmu Pengetahuan Alam, Universitas Udayana

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Abstract

Oil palm (Elaeis guineensis) is one  main commodity in Riau Province. Morphologically, the trunk of oil palm  has suitable environment for the growth of epiphytic fern, due to its broaden base of petiole that may accumulate organic and anorganic debrish. The objective of this study was to investigate the diversity of epiphytic fern on the oil palm tree. A total of 125 oil palm trees from seven  study sites in Pekanbaru, Riau were observed. The number of epiphytic ferns identified in this study was 16 species belongs to six families.
KROMOSOM STICKY PADA KECAMBAH PADI (Oryza sativa L.) ASAL KABUPATEN BENGKALIS, RIAU TERKAIT CEKAMAN GARAM Ningsih, Ermi; Roslim, Dewi Indriyani; Sofiyanti, Nery
Jurnal Online Mahasiswa (JOM) Bidang Matematika dan Ilmu Pengetahuan Alam Vol 1, No 2 (2014): Wisuda Oktober 2014
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Matematika dan Ilmu Pengetahuan Alam

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Abstract

Rice (Oryza sativa L.) is a plant that is not resistant to the salt stress, but the development of agriculture in coastal areas requires the analysis of rice genotypes that are resistant to the salt stress. The salt stress may cause chromosomal abnormality, such as sticky chromosome. This study was aimed to analyze the influence of the salt stress on the formation of chromosomes in four rice genotypes originating from Bantan Air village, Bengkalis. This research was conducted using randomized block design (RBD) with two factors, i.e. NaCl concentrations (0 mM, 60 mM, 75 mM, and 90 mM) and the rice genotypes (IR64, Indragiri, Solok, Sadani, Yamin, and Amat Candu) with three replications for each treatment. Normal anaphase chromosomes were visible in control, whereas sticky chromosomes were seen in 90 mM salt exposure. It concluded that salt stress may cause sticky chromosomes.
ANALISIS HUBUNGAN KEKERABATAN JAMBU AIR (Syzigium aqueum (Burm.f.). Alston) DI KOTA PEKANBARU DAN KABUPATEN KAMPAR BERDASARKAN KARAKTER MORFOLOGI Iriani, Nanda Marlian; Sofiyanti, Nery; ', Fitmawati
Jurnal Online Mahasiswa (JOM) Bidang Matematika dan Ilmu Pengetahuan Alam Vol 1, No 2 (2014): Wisuda Oktober 2014
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Matematika dan Ilmu Pengetahuan Alam

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Abstract

Water apple is one of agricultural commodities in Indonesia, including Riau Province. In this Province, this species is mainly distributed in Pekanbaru and Kampar. The diversity of water apple in both regions is high, however, there is no record of its morphological diversity study. This study aimed to identify and to know the diversity of water apple from Pekanbaru and Kampar based on the morphological characters. This research had been carried out from April 2013 to January 2014 using survey and observation methods. The morphological characters were observed and described. The scoring of morphological characters was then analyzed using NTSYS-pc 2.02i. The numbers of variation found in tree, leaf, flower, fruit and seed were 4, 5, 7, 9 and 3 respectively. The similarity coefficient ranged from 0.16 to 0.77. The highest similarity was found on individual R8 and R7, while the lowest similarity coefficient was found on individual KM10 and BR8. Result of cluster analysis showed that the relationship of water apples ranged from 0.41 to 0.78.
ANALISIS HUBUNGAN KEKERABATAN DURIAN (Durio zibethinus Murr.)BERDASARKAN PENANDA MORFOLOGI DI KABUPATEN KUANTAN SINGINGI Baroroh, Nasri; ', Fitmawati; Sofiyanti, Nery
Jurnal Online Mahasiswa (JOM) Bidang Matematika dan Ilmu Pengetahuan Alam Vol 1, No 2 (2014): Wisuda Oktober 2014
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Matematika dan Ilmu Pengetahuan Alam

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Abstract

Durian (Durio zibethinus Murr.) is one of tropical fruit belongs to Bombacaceae family that has high economic value. Kuantan Singingi District one of durian distribution areas in Riau Province which has high diversity of durian. The purpose of this study was to identify the diversity of durian in Kuantan Singingi District. This study had been conducted from August 2013 to February 2014. Sampling was done using purposive random sampling and observation on morphological characters. Morphological data was analyzed by SIMQUAL and UPGMA procedures using the program NTSYS-pc. 2:02 and followed by correlation analysis, variability and principal components using Minitab 16:13. From a total of 32 individuals of durian, the similarity coefficient was ranged from 23% to 64%. The dendrogram formed two main groups that clustered based on the similarity of morphological characters. Pearson correlation analysis obtained 14 characters of 61 characters which were positively correlated with each other with the level of confidence was >98%. Result of principal component analysis formed two groups with 30% of the diversity value.
POLIMORFISME PEROKSIDASE RAMIN (Gonystylus bancanus (Miq.) Kurz) DI HUTAN PT. DIAMOND RAYA TIMBER PROVINSI RIAU Pangkey, Mellyasari; Wahibah, Ninik Nihayatul; Sofiyanti, Nery
Jurnal Online Mahasiswa (JOM) Bidang Matematika dan Ilmu Pengetahuan Alam Vol 1, No 2 (2014): Wisuda Oktober 2014
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Matematika dan Ilmu Pengetahuan Alam

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Abstract

Ramin is a peat swamp endemic plant highly demanded in furniture industries. The high price and market demand has led to increase the illegal logging which subsequently threaten ramin population existence. On the other hand, genetic related information on ramin is limited. Biochemical approaches such as isozyme can be used to analyze genetic diversity. The objective of this study was to reveal the peroxsidase (PER) polimorphism of ramin natural population at PT. Diamond Raya Timber (PT. DRT) forest in Riau Province. PER were analyzed using horizontal elektrophoresis model. The leaf samples that used in this study were collected from 50 individuals ramin. Data were analyzed using SAHN function and UPGMA method by NTSYS version 2.0. The results showed that PER enzyme produced clear visualization, forming 12 band patterns that were formed by six bands which was different migrating direction to the anode pole (positive) and catode pole (negative). The dendrogram in this study showed that 50 individuals of ramin were clustered into two main separated groups at the level of 47% similarity coefficient. These data indicated that the genetic variation of ramin in PT.DRT was quite diverse.
Taksiran Akumulasi Biomassa atas Permukaan pada Eksperimen Restorasi Lahan Gambut Bekas Terbakar, Area Transisi Cagar Biosfer Giam Siak Kecil-Bukit Batu, Riau, Sumatera Indonesia GUNAWAN, HARIS; MUDIYARSO, DANIEL; MIZUNO, KOSUKE; KOZAN, OSAMU; SOFIYANTI, NERY; INDRIYANI, DIAN; SEPTIANI, DIEN; LESTARI, ISKA
Jurnal Riau Biologia Vol 1, No 1 (2016)
Publisher : Jurusan Biologi FMIPA Universitas Riau

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The Giam Siak Kecil-Bukit Batu Biosphere Reserve was managed by zonation as a approach for multibenefitof management goals. This Bioshere Reserve has a fairly high carbon stock stored in its naturalpeat swamp forest ecosystems. Nevertheless, the condition of the peat swamp forest in the BiosphereGiam Siak Kecil-Bukit Batu currently has been destructed, especially in the buffer and transition zones.The threats of protected areas are not only coming from forest fire factors, but also from encroachmentand illegal logging. Therefore, it requires a recovery effort. This research aims to determine the survivalrate and to estimate the above ground biomass accumulation of the main tree species of peat swamp forestthat used to restore the burnt peat. The estimated total biomass accumulation on the surface was measured using allometric equations. Result of this research proved that Jelutung tree (Dyera polyphylla) has thebest survival rate among the trees (98%), while banana tree (Mezzettia parviflora) has lower survival rate( 35%). The highest total biomass accumulation was found in Jelutung (Dyera polyphylla) (499.015kg/ha/year, while the lowest total biomass accumulation was found in Meranti batu (Shorea uliginosa)(88.867 kg/ha/year). A total of nine pioneer species were identified i.e. Tenggek burung (Euodia sp),kayu ara (Ficus sp), mahang (Macaranga triloba), karet (Havea brasiliensis), sendayan (Scleriasumatrensis), alang-alang (Imperata cylindrica), senduduk (Melastoma malabathricum), paku-pakuan(Neprolepis hirsutula) and rumput teki (Cyperus rotundus). The total biomass accumulation of earlysuccession in all types of vegetation pioneer is 338,91 kg/ha.Key words: Above Ground Biomass Accumulation, restoration, vegetasion succession, burned peatland,Survival Rate.
KOMUNITAS VEGETASI PIONIR DAN PERKIRAAN AKUMULASIBIOMASSA PADA LAHAN GAMBUT BEKAS TERBAKAR DI AREA TRANSISICAGAR BIOSFER GIAM SIAK KECIL – BUKIT BATU RIAU Septiani, Dien; Gunawan, Haris; Sofiyanti, Nery
Jurnal Online Mahasiswa (JOM) Bidang Matematika dan Ilmu Pengetahuan Alam Vol 2, No 1 (2015): Wisuda Februari 2015
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Matematika dan Ilmu Pengetahuan Alam

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After-burned peatland formed a new pioneer vegetation communities for biomass stored. In the next process, this vegetation reduce carbon emission into the air which caused by the releasing of stored carbon in natural peatland. The purpose of this research is to know the characteristics of natural succession in the early stage of pioneervegetation communities in after-burned peatland. Total biomass accumulation was counted using allometric equation BP = 0,1236 D2,3677, Wtotal= 0,1531080 (D)2,40, Btotal = 0.1923 D2.15, M = 7.50 × 10–2(D)2.60 dan M = 1.49 × 10–1(D)2.09 . The pioneer vegetation which were observed after the peatland fire were tenggek burung (Euodia sp.), kayu ara (Ficus sp.), mahang (Macaranga triloba), karet (Havea brasiliensis), sendayan (Scleria sumatrensis), alang–alang (Imperata cylindrica), senduduk (Melastoma malabathricum), paku-pakuan (Neprolepis hirsutula) dan rumput teki (Cyperus rotundus). The abundance of woody vegetation, Euodia sp., become very dominant after the first stage of  successionin after-burned peatland. Total surface biomass accumulation from the beginning of succession in all types of pioneervegetation was338,91 kg/ha/years.
JENIS-JENIS CEMPEDAK (Artocarpus champaden Lour.) DI KABUPATEN KAMPAR PROVINSI RIAU Fitmawati, Fitmawati; Andani, Via; Sofiyanti, Nery
EKOTONIA: Jurnal Penelitian Biologi, Botani, Zoologi, dan Mikrobiologi Vol 3 No 1 (2018): Ekotonia: Journal Penelitian Biologi, Botani, Zoologi dan Mikrobiologi
Publisher : Department of Biology, Faculty of Agriculture, Fisheries and Biology, University of Bangka Belitung

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Abstract

Cempedak (Artocarpus champaden Lour.) is one of the special fruits in Southeast Asia which is the prima donna of the community. In the province of Riau, cempedak found in many areas of Kampar regency. This study aims to identify the types of cempedak that exist in Kampar regency. Based on the results of the research, cempedak is categorized into four cultivars ie cempedak pulp cultivars, cempedak forest cultivars, cempedak langkat cultivars and cempedak nangkadak cultivars, from four cempedak cultivars found, Nempadak cempedak cultivars and Langkat cultivars are the most superior cempedak cultivars because they have fruits big, lots of content, thick meat and sweet taste.
INVENTARISASI DAN KAJIAN PALINOLOGI JENIS-JENIS TUMBUHAN PAKU (PTERODOFITA) EPIFIT DI KAWASAN UNIVERSITAS RIAU, PROVINSI RIAU Sofiyanti, Nery; Harahap, Putri Handayani
Jurnal Biologi Tropis Jurnal Biologi Tropis Vol.19 No.2 Juli - Desember 2019
Publisher : Program Studi Pendidikan Biologi FKIP Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jbt.v19i2.1266

Abstract

Abstrak : Tumbuhan paku  (Pteridofita) epifit banyak di jumpai di kawasan Universitas Riau. Karakteristik spora pada tumbuhn apaku memegang peranan penting dalam kajian taksonomi. Penelitian ini bertujuan untuk mengidentifikasi jenis-jenis pteridofita epifit di kawasan ini dan  mengkarakterisasi sporanya. Metode pengambilan sampel dilakukan menggunakan metode eksplorasi. Setiap jenis yang dijumpai didokumentasikan, dibuat herbarium, dideskripsi dan diidentifikasi. Spora dikoleksi dari daun yang sudah dewasa dan dibuat preparat menggunakan metode asetolisis. Preparat spora diamati dan didokumentasikan menggunakan mikroskop digital. Data yang diperoleh kemudian disajikan dalam bentuk gambar dan tabel serta dianalisis secara deskriptif. Hasil inventarisasi paku epifit di kawasan Universitas Riau mengidentifikasi 18 jenis paku epifit, yang tergolong ke dalam 6 famili yaitu Aspleniaceae, Davalliaceae, Nephrolepidaceae, Polypodiaceae Pteridaceae and Thelypteridaceae. Namun kajian palinologi hanya dilakukan pada 11 jenis yang sudah menghasilkan spora. Hasil pengamatan spora menunjukan bahwa semua jenis paku epifit mempunyai tipe dasar spora monolete, berbentuk ginjal dan hanya mempunyai satu laesura pada bagian ventral. Ukuran spora yang dijumpai adalah besar dan sangat besar, dengan ornamentasi permukaan Lohpat, verukat berpapila verukat, tuberkulat, ekinat pendek dan ekinat panjang. Morfologi spora yang ditemukan pada penelitian ini menunjukan karakteristik yang berbeda pada setiap jenis. Namun masih perlu dilanjutkan pengamatan menggunakan Scanning Electron Microscopy untuk mendapatkan oramentasi lebih detilKata kunci : paku epifit, palinologi, spora, monolete, UNRI Abstract : Ephypitic ferns are commonly found in University of Riau area. Spore characteristics play important role in taxonomical words. This study aimed to identify ephypitic pteridophyte species from this area and characterize their spore. Samples were collected using exploration method, and were then documented, prepared for herbarium, described and identified. Spore grains were collected from mature leaves and prepared by using acetolysis method. The spores were then observed and documented using digital microscope. Data were presented in figures and tables and describtively analized. The inventory of ephypitic ferns from University of Riau area identified a total of 18 fern species belong to 6 families, i.e. Aspleniaceae, Davalliaceae, Nephrolepidaceae, Polypodiaceae, Pteridaceae and Thelypteridaceae. Palinologycal study had been carried out from 11 species that produced spore. We observed the basic spore type of examined ephypitic ferns, monolete, with reniform shape and one laesura at the ventral part. The size of spore observed were big and very big spore, with surface ornamentation Lohpate, papillous verucate,  verucate,  tuberculate,, short echinate and long echinate. Spore morphology observed in this study showed the characteristic among the examined species. The further study using Scanning Electron Microscopy is neccesary to obtain detail spore ornamentation.Keywords: ephypitic fern, palynology, spore, monolete, UNRI
Karakterisasi Morfologi Rafflesia di Kawasan Suaka Margasatwa Bukit Rimbang Bukit Baling Kabupaten Kampar Provinsi Riau PRANATA, SYAFRONI; SOFIYANTI, NERY; , FITMAWATI
Jurnal Riau Biologia Vol 1, No 2 (2016)
Publisher : Jurusan Biologi FMIPA Universitas Riau

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Abstract

Rafflesia merupakan tanaman holoparasit dengan inang Tetrastigma spp (Vitaceae). Jenis-jenis Rafflesia merupakan jenis yang langka dan dilindungi, termasuk Rafflesia di Suaka Marga Rimbang Baling, Riau. Tujuan dari penelitian ini untuk mengkarakterisasi morfologi Rafflesia di Suaka Margasatwa Bukit Rimbang Bukit Baling serta mengidentifikasi inangnya. Pengambilan data dan sampel dilaksanakan dengan metode eksplorasi. Hasil penelitian ditemukan hanya satu populasi Rafflesia di lokasi penelitian. Jumlah total individu yang ditemukan adalah 6 idividu. Bunga memiliki pola bercak besar dan berwarna putih dengan lobus perigon warna merah gelap, diidentifikasi sebagai R. hasseltii Suringar.