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INDONESIA
Jurnal Biologi Universitas Andalas
Published by Universitas Andalas
ISSN : -     EISSN : 23032162     DOI : -
Core Subject : Science, Agriculture,
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology
Arjuna Subject : -
Articles 236 Documents
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Spatial Spread of Invasive Foreign Plants Clidemia hirta (L.) D. Don in Bung Hatta Forest Park, Padang, West Sumatra Rian Anggraini; Solfiyeni Solfiyeni
Jurnal Biologi Universitas Andalas Vol 7, No 2 (2019)
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jbioua.7.2.136-141.2019

Abstract

Research on Spatial Spread of Invasive Foreign Plants Clidemia hirta in Bung Hatta Forest Park, Padang, West Sumatra, has been carried out from January to June 2018. The purpose of this study was to determine the spatial distribution pattern of invasive foreign plants Clidemia hirta and analyze the influence of distance from roads and influence light intensity on the distribution of the number of individuals Clidemia hirta in the Bung Hatta Forest Park. This study uses a belt transect method with a width of 2 meters along 250 meters. Along the transect, a plot of 2x2 meters was made with 125 plots. Observations made on Clidemia hirta is to calculate the number of individuals and measure the intensity of light in each plot. The results showed that the pattern of spread of  Clidemia hirta was grouped with the Morisita Index of 2.1. The distance from the road and the intensity of light does not affect the distribution of the number of individuals with R Square values of 0.022 and 0.007, respectively.
Studi Perkembangan Aerenkim Akar Padi Sawah dan Padi Ladang pada Tahap Persemaian dengan Perlakuan Perendaman Fitri Handayani; Tesri Maideliza; - Mansyurdin
Jurnal Biologi Universitas Andalas Vol 2, No 2 (2013)
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jbioua.2.2.%p.2013

Abstract

The study of root aerenchyma development of wetland paddy cv."anak daro" and upland paddy cv. "merah" at nursery stageby flooding treatment was conducted from January to April 2013 in green house and Laboratory of Plant Development and Structure, Biology Departement, Andalas University, Padang. The objective of this study was to observe the aerechyma development in the root cortex and its zone along root. The root of paddy as materials were prepared by the paraffin method. The result showed that aerenchyma was developed from cortical cells of proximal root either in wetland or upland paddy in two days after seedling. At 8 days after seedling, wetland paddy with flooding treatment formed 27-29 aerenchymatous cavities compared to 27-28 cavities of their control. Upland paddy with flooding treatment formed 28-30 aerenchymatous cavities and did not form any cavity on their control.. The aerenchyma of both paddies developed completely between outer and inner cortex in 14 days after seedling. The aerenchymatous zone was developed completely from proximal up to distal root at 21 days after seedling.Keywords: wetland paddy, upland paddy, flooding, aerenchyma development, root
Jenis-Jenis Cacing Parasit Saluran Pencernaan pada Hamster Syria Mesocricetus auratus (Waterhause, 1839) di Kota Padang Riski Andrian Jasmi; - Mairawita; - Dahelmi
Jurnal Biologi Universitas Andalas Vol 3, No 1 (2014)
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jbioua.3.1.%p.2014

Abstract

A study about gastrointestinal helminths of Mesocricetus auratus (Waterhause, 1839) in Padang, West Sumatera was conducted from March to July 2013. This study was aimed to identify species of gastrointestinal helminths and to determine the prevalence of gastrointestinal helminths of M. auratus in Padang. Sampling was conducted by using Purposive methods. Those samples were examined by using direct observation, floating-centrifuge and sedimentation method. A total of four helminths species that belonging to two phylums and four orders was collected. The obtained helminths were Hymenolepis nana Siebold, 1852 (Cyclophyllidea), Syphacia obvelata Rudolphi, 1802 (Ascaridida), Sp. 1 (Strongylida), and Sp. 2 (Enoplida). The prevalence of Syphacia obvelata, Hymenolepis nana, Sp. 1 and Sp. 2 were 57,1%, 50%, 17,1% and 17,1%, respectively.
Analisis Vegetasi Gulma pada Perkebunan Kelapa Sawit (Elais quineensis jacq.) di Kilangan, Muaro Bulian, Batang Hari Ade Adriadi; - Chairul; - Solfiyeni
Jurnal Biologi Universitas Andalas Vol 1, No 2 (2012)
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jbioua.1.2.%p.2012

Abstract

A vegetation analysis of weed in palm oil plantation (Elaeis quineensis Jacq.) in Kilangan Muaro Bulian, Batang Hari has been conducted from February to May 2012 by using quadrate method. Twenty four – 1 m2 plots were placed using purposive sampling method. The result showed that weed composition in palm oil plantation composed by 20 families, 47 genera, 56 spesies and 3934 individuals. Paspalum conjugatum was highest SDR 19.48% (1029 individuals), and the lowest was Cuphea platycentra SDR 0,19% (2 individuals) in palm oil plantation. Index diversity of weed was H’ = 3.14.Keywords : Elaeis quineensis Jacq, composition, structure
Pertumbuhan Daun Angsana (Pterocarpus indicus Willd) dan Akumulasi Logam Timbal (Pb) Gita Prima Yudha; Zozy Aneloi Noli; M. Idris
Jurnal Biologi Universitas Andalas Vol 2, No 2 (2013)
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jbioua.2.2.%p.2013

Abstract

An examination of lead accumulation on leaves growth Angsana (Pterocarpus indicus Willd) was conducted from August to November 2012 in Plant Physiology Laboratory, Andalas University, Padang. The aim of the study was to find correlation between accumulation of lead and leaves size and stomatal density. Statistical analysis used kruskal wallis-test and linear regression. The result showed that Angsana’s leaves stopped growing after 25 days old with achieved 25.99 cm width, 345 per mm2 stomatal density and 0.73 mg per gr of chlorophyll content. Concentration of lead increased gradually from 0.00 mg per kg at early and 0.021 mg per kg in 25 days. There was no significant correlation between age of leaves and lead concentration. However, there was a positive correlation between width of leaves and lead concetration (R= 0.862).Keywords: Pterocarpus indicus, accumulation of Pb, age and size of leave.
Uji Ketahanan Pisang Ambon Kuning Koleksi dari Jambi Terhadap Beberapa Vegetatif Compatibility Group (VCG) Fusarium oxysporum f. sp. cubense (Foc) Rahmi Anna F.G; Nasril Nasir; - Jumjunidang; Catur Hermanto
Jurnal Biologi Universitas Andalas Vol 3, No 1 (2014)
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jbioua.3.1.%p.2014

Abstract

One of prospective banana collections at Indonesian Tropical Fruits Research Institute is Ambon kuning (Gros michel) origins from Jambi. The aim of the study was to find out the response of Ambon kuning to some Vegetative Compatibility Groups (VCGs) of Fusarium oxysporum f. sp. cubense. The research was conducted from November 2012 to February 2013 in the laboratory of plant disease and the screen house of Indonesian Tropical Fruits Research Institute of Solok. The treatment used a Randomized Block Design (RBD) with 6 treatments and 4 replications, each treatment consisted of 5 plants. Treatments were 6 isolates of Foc VCGs 01213/16, 0121, 01219, 0123, 0124/5, 0120/15, those were the Indonesian Tropical Fruits Research Institutes collection. The parameters observed were percentage of plants infected, the incubation period, index of diseases severity on leaves and corm. Data was analyzed by analysis of variance. The results showed that Ambon kuning (Gros Michelcv) was resistant to Foc VCG 01219 and VCG 0120, moderately resistant to Foc VCG 0123, susceptible to Foc VCG 0121 and VCG 0124/5, and highly susceptible to Foc VCG 01213/16 Keywords: banana, resistance variety, Fusarium oxysporum f. sp. cubense, Vegetative Compatibility Group (VCG)
Spesies Kupu-Kupu (Rhopalocera) Di Tanjung Balai Karimun Kabupaten Karimun, Kepulauan Riau Nofri Sea Mega Sutra; - Dahelmi; Siti Salmah
Jurnal Biologi Universitas Andalas Vol 1, No 1 (2012)
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jbioua.1.1.%p.2012

Abstract

A study on butterflies (Rhopalocera) at Tanjung Balai Karimun was conducted from December 2011 to April 2012. The purposes of this study is to know the butterfly species at Tanjung Balai Karimun, Karimun Regency, Riau Archipelago. Butterflies were collected by insect net, cylindrical gauze and baited trap. A total of 42 species of butterflies that belonging 55 subspecies, 32 genera ang eigth families was collected. They were belong to Acraeidae, Amathusiidae, Danaidae, Lycaenidae, Nymphalidae, Papilionidae, Pieridae, and Satyridae. The highest number of species was found in family of Nymphalidae (15 species, 21 subspecies, 12 genera), and the lowest number of species was found in Acraeidae (Acraea violae Fabricius) and Amathusiidae (two genus, two spesies dan three subspesies). Five species of butterflies in this study have not been found in previous studies from Sumatra. They were Zeuxidia amethystus Butler (Amathusiidae), Euploea crameri C & R. Felder (Danaidae), Arhopala avatha de Niceville (Lycaenidae) and Euthalia mahadeva Fabricius, Lebadea martha Fruhstorfer (Nymphalidae).Keywords: rhopalocera, species, Tanjung Balai Karimun, Riau Archipelago
Tumbuhan Ficus L. (Moraceae) di hutan konservasi Prof. Soemitro Djojohadikusumo, PT. Tidar Kerinci Agung (TKA), Sumatera Barat - Nur'aini; - Syamsuardi; Ardinis Arbain
Jurnal Biologi Universitas Andalas Vol 2, No 4 (2013)
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jbioua.2.4.%p.2013

Abstract

The floristic study of Ficus L. at conservation forest Prof. Soemitro Djojohadikusumo PT. Tidar Kerinci Agung (TKA) West Sumatera have been carried out from September 2012 to January 2013. Samples were directly collected during surveys along the tracks at the study area between 300 and 543 meter above sea levels. The samples were processed and identified at Herbarium ANDA, Biology Department. Twenty spesies of Ficus were identified. Each species could be distinguished by some specific morphological characters such as stipula, leaf frorm, waxy glands, and fruit type. We prepared description for each species and determination key of species level. Keywords: Ficus, forest conservation, floristic study, morfologycal character, palm oil planation and Species.
Kepadatan Populasi dan Struktur Kelompok Simpai (Presbytis melalophos) serta Jenis Tumbuhan Makanannya di Hutan Pendidikan dan Penelitian Biologi (HPPB) Universitas Andalas Rahmi Fitri; - Rizaldi; Wilson Novarino
Jurnal Biologi Universitas Andalas Vol 2, No 1 (2013)
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jbioua.2.1.%p.2013

Abstract

A study about population density, group structure and diet of mittered leaf-monkeys (Presbytis melalophos, Raffles 1821) at the biological research and educational forest of Andalas University had been carried out from June to November 2012. This study used direct census method to figure out their structures and population and ad-libitum method to observe the plants consumed by animal subjects. There were 13 individuals of the leaf-monkeys in which belong to three groups. The group structure consisted of 2-3 adult individuals, 1- 2 subadults and 0-1 juvenile. Population density of the leaf monkeys in a defined area of 0.75 km2 was 17.3 individual/km2 and group density was 4 group/km2. The average of homerange was 0.13 km2. There were 9 species of plants consumed by the leaf monkeys within their homeranges those belong to 8 families.Keyword: Presbytis melalophos, direct census, ad-libitum, population density
Penetasan Telur Penyu Lekang (Lepidochelys olivacea Eschscholtz,1829) pada Lokasi Berbeda di Kawasan Konservasi Penyu Kota Pariaman Nurhidayata Bin Syaiful; Jabang Nurdin; Indra Junaidi Zakaria
Jurnal Biologi Universitas Andalas Vol 2, No 3 (2013)
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jbioua.2.3.%p.2013

Abstract

Research about eggs hatching of olive ridley turtles (Lepidochelys olivacea Eschscholtz,1829) in the turtle conservation area of Pariaman City was conducted from October to January 2013. This research aims to determine a suitable location in eggs hatching of olive ridley turtles in the Turtle Conservation Area of Pariaman city. The research used experiment method with treatment A (beachsand near the shore) and B (beachsand near the sea), three repetitions in each location and 20 eggs per repeat. Results showed that the best location for hatching is beachsand near the shore with 80 % rate of hatching. The rate of hatching in beachsand near the sea is 37%. Environmental factors that influent rate of hatching are topography, temperature dan salinity.

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