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Jurnal Biologi Udayana
Published by Universitas Udayana
ISSN : 14105292     EISSN : 25992856     DOI : https://doi.org/10.24843/jbiounud
Core Subject : Science, Agriculture,
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology
Jurnal Biologi Udayana (p-ISSN 1410-5292 | e-ISSN 2599-2856 | DOI 10.24843/jbiounud) managed by the Department of Biology, Udayana University, published in two formats namely print and online regularly twice a year (June and December).
Arjuna Subject : Ilmu Pertanian dan Biologi (Semua) - Ilmu Pertanian dan Biologi (Lain-Lain)
Articles 262 Documents
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DIVERSITY OF INSECT THAT INTERACT WITH BALI CATTLE (Bos sondaicus) IN THE MOOR AREA AND OUTSKIRT OF FOREST Kadek Wiwik Widaswari; Ni Luh Watiniasih; I.B. Made Suaskara
Jurnal Biologi Udayana Vol 20 No 2 (2016): Jurnal Biologi
Publisher : Program Studi Biologi, Fakultas Matematika dan Ilmu Pengetahuan Alam, Universitas Udayana

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Abstract

This study aimed to determine the types of insects that interact with bali cattle in the moor area in Kepuhvillage, District of Mendoyo, Jembrana and in the outskirts of the forest at Keladian village, Rendang, Karangasem.Samples of flying insects was taken using modified insect nets, whereas insects that patch on the surface of bodycattle were collected manualy. Collected insects were identified at the Laboratory of Ecology, Department of Biology,Udayana University. The data collected were analyzed descriptively. The results showed that the more species ofinsects (7 species) were associated with bali cattle in the outskirt of forest compared to in moor area (3 species).The temperature at the outskirt of forest was lower (average 27.6° during the day) with the average of 86.0%,compared to the average temperature of 36.0° and 65.3% of humidity during the day.
POLA REPRODUKSI PADA SALAK BALI (SA/ACCA ZA/ACCA VAR. AMBOINENSIS (BECC.) MOGEA ENIEK KRISWIYANTI; I KETUT MUKSIN; LUH WATINIASIH; MADE SUARTINI
Jurnal Biologi Udayana Vol 12 No 2 (2008): JURNAL BIOLOGI
Publisher : Program Studi Biologi, Fakultas Matematika dan Ilmu Pengetahuan Alam, Universitas Udayana

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Abstract

Research on reproduction patterns of Balinese snake skin fruits (Salak Bali) has been conducted by identifying the availability of pollens on anthers of male and hermaphrodite flowers, the viability of pollens in the pistillum and the present of embryo(s) in the ovulum. Flower samples were collected from Sibetan and Muncan Villages, Karangasem regency. Sample preparations and identifications were conducted in "Stuktur dan Perkembangan Tumbuhan Laboratory" Department of Bilogy, FMIPA Udayana University. The results showed that the pollen has a single apperture, unisulcus, minuta, oblat sferoidal type. The length of polar axis was 15-24 jam (P) and equatorial diameter of 16-24 |im (E). Therefore, the P/E index was 0.99-1.0. The pollen viability before and after anthesis of hermaphrodite flowers was low (71.4% and 50.6% respectively), with very low pollen tube germinations (0.08% of before and 0.48% after anthesis). Similarly, on the anthers of male flowers, the viability of pollens before anthesis was low (75.7%) with pollen germination of 0.18%, and event lower in after anthesis flowers (28.8%) with 0.29% pollen tube germination. Squashed stigma before and after anthesis and 2 days after flowers were opened showed that there was no germination occurred. Therefore, there was no germination in the pistillum, but the embryo developed before flower anthesis, indicates that the reproduction pattern of Salak Bali occurred without fertilizations (agamospermy).
PENGARUH MEDIA TERHADAP PERTUMBUHAN DAN BIOMASSA CENDAWAN Alternaria alternata (Fries) Keissler Pinki Prahara Taurisia; Meitini W Proborini; Irsan Nuhantoro
Jurnal Biologi Udayana Vol 19 No 1 (2015): JURNAL BIOLOGI
Publisher : Program Studi Biologi, Fakultas Matematika dan Ilmu Pengetahuan Alam, Universitas Udayana

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Abstract

Alternaria alternata merupakan salah satu cendawan patogen. Pertumbuhan dan biomassa cendawan A. alternata sangat dipengaruhi oleh pH dan nutrisi yang terkandung pada media tumbuh. Jenis media yang paling sesuai dapat memacu pertumbuhan cendawan. Penelitian ini bertujuan untuk mengetahui pengaruh media yang berbeda terhadap pertumbuhan dan biomassa cendawan A. alternata. Penelitian dilaksanakan di Laboratorium Taksonomi Tumbuhan (Mikologi) Jurusan Biologi Fakultas MIPA, Universitas Udayana dan Balai Karantina Pertanian Kelas I Denpasar. Cendawan ditumbuhkan menggunakan tujuh media yang berbeda (PDA, PCA, SDA, CDA, CMA,NA, MEA). Rancangan yang digunakan adalah Rancangan Acak Lengkap, setiap perlakuan diulang sebanyak empat kali. Pengukuran dilakukan pada hari keempat, kelima, keenam, dan ketujuh. Pengukuran berat biomassa dilakukan dengan pengovenan selama 5 hari. Hasil pertumbuhan koloni A. alternata pada media CDA (5,58 mm) berbeda nyata dengan media PDA (5,50 mm) dan PCA (5,28 mm), sedangkan pengukuran berat biomassa terbesar yaitupada media PCA (0,470 mg) dan terendah pada media NA (0,047 mg).
THE DIVERSITY OF EPIPHYTIC FERN ON THE OIL PALM TREE (Elaeis guineensis Jacq.) IN PEKANBARU, RIAU Nery Sofiyanti
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.
CALLUS INDUCTION ON BANANA FLOWER’S EXPLANT IN VITRO USING 2,4-DICHLOROPHENOXYACETIC (2,4-D) RINDANG - DWIYANI; HESTIN - YUSWATI; UTAMI - -
Jurnal Biologi Udayana Vol 22 No 2 (2018): JURNAL BIOLOGI UDAYANA
Publisher : Program Studi Biologi, Fakultas Matematika dan Ilmu Pengetahuan Alam, Universitas Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (603.491 KB) | DOI: 10.24843/JBIOUNUD.2018.v22.i02.p03

Abstract

ABSTRACT The objective of the study was to obtain the best 2,4-D concentration on callus induction of the banana flowers in banana propagation using indirect organogenesis method. Kesuna, local banana cultivar obtained from Sembung Gede, Tabanan was used as explant material. Callus induction was performed using 2,4-Dichlorophenoxyacetic acid with concentration of 0; 0.5; 1.0; 1.5 and 2.0 ppm. Each treatment was represented by 3 bottles and each bottle was planted with 3 explants, so each treatment was represented by 9 explants of banana flowers. The results showed that the concentration of 2.0 ppm 2.4-D induced callus with the fastest time and gave the highest percentage of the explants producing callus. The calluses were subsequently subcultured into regeneration medium using 0.5 mg/L Benzylaminopurine (BAP) and 0.005 mg/L Napthaleneaceticacid (NAA). The calluses were subsequently sub-cultured into a regeneration medium using 0.5 ppm (BAP) and 0.005 ppm Naphthalene acetic acid (NAA) to induce shoots and roots and performed plantlets. Keywords: 2,4-Dichlorophenoxyacetic acid, banana’s flowers, callus
UJI VIABILITAS DAN PERKEMBANGAN SERBUK SARI BUAH NAGA PUTIH (HYLOCEREUS UNDATUS (HAW.) BRITTON & ROSE), MERAH (HYLOCEREUS POLYRHIZUS (WEB.) BRITTON & ROSE) DAN SUPER MERAH (HYLOCEREUS COSTARICENSIS (WEB.) BRITTON & ROSE) SETELAH PENYIMPANAN NI KADEK YUNITA SARI; ENIEK KRISWIYANTI; IDA AYU ASTARINI
Jurnal Biologi Udayana Vol 14 No 2 (2010): Jurnal Biologi
Publisher : Program Studi Biologi, Fakultas Matematika dan Ilmu Pengetahuan Alam, Universitas Udayana

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Abstract

The aim of the research was to determine pollen viability, pollen tube length and pollen development of white, red and super red dragon fruit after storage at different temperatures and times. The method used to test pollen viability was hanging drop technique and to observe the development of pollen used acetolysis techniques. The results showed viability and pollen tube length of white, red and super red dragon fruit after storage at temperature of 10° C and -20° C for 1, 2 and 3 weeks decreased (66% and 25%), tended to increase (2% ) after 4 weeks. Viability and pollen tube length decreased (100%) after storage at 30° C for 4 weeks. Pollen development of white, red and super red dragon fruit after storage at 30°C, 10°C and -20°C for 1 to 4 weeks showed the majority of pollen consists of uninucleat and binucleat.
AUTEKOLOGI BEGONIA DI SEBAGIAN KAWASAN TAMAN NASIONAL GUNUNG MERAPI NKE. Undaharta; Sutomo Sutomo
Jurnal Biologi Udayana Vol 20 No 1 (2016): Jurnal Biologi
Publisher : Program Studi Biologi, Fakultas Matematika dan Ilmu Pengetahuan Alam, Universitas Udayana

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Abstract

Penelitian dilakukan pada bulan September 2013 di Taman Nasional Gunung Merapi, Yogyakarta dengantujuan untuk mengetahui data ekologi Begonia di habitat alaminya serta tumbuhan bawah yang ada di sekitarnya.Pengambilan sampel dilakukan dengan membuat plot ukuran 2 x 2 m secara purposive sampling. Data lingkunganyang diperoleh masing-masing plot pada habitat Begonia dianalisis menggunakan Canonical CorespondenceAnalysis (CCA) dengan program Canoco untuk mengetahui seberapa besar pengaruh faktor-faktor ini terhadapkeberadaan Begonia. Data kelimpahan (abudance) vegetasi ditabulasikan ke dalam format excel spreadsheet yangdiinput ke dalam software PRIMER. Data dilakukan pre-treatment dengan square root transformation kemudian dihitung matriks kemiripan atau resemblance matrix berdasarkan indeks kemiripan Bray-Curtis sebagai dasar analisis Non Metric Multidimensional Scaling ordination/NMDS untuk mengetahui sebaran kelimpahan Begonia.Sebanyak 3 jenis Begonia yang dapat ditemukan di sebagian kawasan Taman Nasional Merapi diantaranya Begoniamultangula Blume, B. hirtella Link dan B. tenuifolia Draynd. Begonia hanya dijumpai di Bukit Plawangan danBukit Pranajiwa. Tumbuh secara mengelompok pada ketinggian 1004-1164 m dpl. Tumbuh pada kemiringan lahan27-40%, pH tanah 6.6-6.9, kelembaban tanah 10-19%. Begonia memiliki preferensi asosiasi dengan ketinggiantempat dan kelembaban tanah. Sumbu altitude lebih signifikan berperan dalam distribusi Begonia di lokasi studidibandingkan sumbu lingkungan kelembaban tanah. Hasil penelitian ini diharapkan dapat memberikan informasiyang bermanfaat dalam melakukan aklimatisasi dan konservasi Begonia.
PENAPISAN KHAMIR SELULOLITIK CRYPTOCOCCUS SP. YANG DIISOLASI DARI TANAH KEBUN BIOLOGI WAMENA, JAYA WIJAYA, PROPINSI PAPUA Atit Kanti
Jurnal Biologi Udayana Vol XI, No 1
Publisher : Program Studi Biologi, Fakultas Matematika dan Ilmu Pengetahuan Alam, Universitas Udayana

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Abstract

Cryptococcus sp. was isolated from Kebun Biologi Wamena, Papua. The isolate was able to grow in media with carboxymethyl cellulose as a sole carbon source implying that isolate produced 1-3 ? endo-glucanase. To study the effect of glucose and osmotic pressure, 0.1 % glucose and 0.1 % NaCl were amended into the medium containing CMC. Glucose significantly affected cellulolytic activity and biomass synthesis. At the beginning of cell cultivation glucose augmentation appear to slightly inhibit enzyme activity. Sodium chloride also significantly affected cellulolytic activity. Profile of pH varied dependent on cultivation media. Maximum growth of biomass was achieved after glucose addition, indicating that glucose stimulated cell growth.
PENGARUH SUHU DAN LAMA PENYIMPANAN TERHADAP KANDUNGAN VITAMIN C PADA CABAI RAWIT PUTIH (CAPSICUM FRUSTESCENS) RANI RACHMAWATI; MADE RIA DEFIANI; NI LUH SURIANI
Jurnal Biologi Udayana Vol 13 No 2 (2009): JURNAL BIOLOGI
Publisher : Program Studi Biologi, Fakultas Matematika dan Ilmu Pengetahuan Alam, Universitas Udayana

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Abstract

The effect of temperature and length of storage on vitamin C concentration of chili (Capsicum frustescens) was observed on this study. Samples were taken from farmer’s field around Gianyar Regency of Bali. The chilies were treated with temperature such as 10ºC, 20ºC, and 29ºC (room temperature) and stored for 5, 10, and 15 days. Jacobs method was applied for vitamin C determination. The highest vitamin C content was obtain from control (59,9 mg/100 ml). On the other hand, the lowest was from chili that stored at room temperature for 15 days (23,6 mg/100 ml). For weight loss, the highest of loss was from chili which stored at room temperature for 15 days.
VARIASI ALEL DNA MIKROSATELIT AUTOSOM LOKUS D2S1338, D13S317 DAN D16S539 PADA MASYARAKAT DAYAK KAHARINGAN DI KOTA PALANGKA RAYA Lucia Emy Octavia; I Ketut Junitha; Inna Narayani
Jurnal Biologi Udayana Vol 19 No 2 (2015): JURNAL BIOLOGI
Publisher : Program Studi Biologi, Fakultas Matematika dan Ilmu Pengetahuan Alam, Universitas Udayana

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Abstract

Penelitian ini dilakukan untuk mengetahui ragam alel masyarakat Dayak Kaharingan di Kota Palangka Raya.  DNA diekstraksi dari sel epitel mukosa mulut, dari 26 individu dengan metode fenol kloroform. DNA mikrosatelitautosom lokus D2S1338, D13S317 dan D16S539 diamplifikasi pada mesin PCR. Pengamatan hasil PCR dilakukan dengan Polyacrylamide Gel Electrophoresis (PAGE) dan visualisasi DNA hasil PCR dengan pewarnaan perak nitrat.  Hasil penelitian ini menunjukkan terdapat 29 alel dari ketiga lokus yaitu lokus D2S1338 sebanyak 11 alel, serta masing-masing sembilan alel pada lokus D13S317 dan lokus D16S539. Nilai heterozigositas tertinggi terdapat pada lokus D2S1338 yaitu 0,8971 dengan kekuatan pembeda (PD) 0,9682, diikuti lokus D13S317 dengan kekuatan pembeda 0,9339 dan lokus D16S539 dengan kekuatan pembeda 0,9226.

Page 7 of 27 | Total Record : 262

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