Jurnal Biologi UNAND
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Karakterisasi Morfologi Populasi Etlingera elatior (Jack) R.M.Sm. (Zingiberaceae) di Sumatera Barat
Get PDFResearch about morphological characterization of Etlingera elatior (Jack) R.M.Sm. (Zingiberaceae) was conducted from August to December 2016 in West Sumatra regions (Kepulauan Mentawai, Solok, and Padang Pariaman) and Padang city. Etlingera elatior has been used as traditional medicines for several diseases. Etlingera elatior was used for the treatment of various diseases. Effectivityof this plant depend on the preciseus in of the determinating variants type. The aim of this research was analyzed morphological variation among populations of Etlingera elatior. Survey and direct sampling method were used and continued by measurement of morphological characters of Etlingera elatior. Classification analyzed by cluster analysis with PAST program. Based on differentiation of the bract color of flowers, four variants of Etlingera elatior in West Sumatra were clarified those were 'red', 'pink', 'pale pink', and 'white' variant. The result of cluster analysis of 53 individuals Etlingera elatior indicated that many of 'white' and the 'red' variant were clustered in the same main cluster and individuals of 'pale pink' variant mostly clustered to 'red' variant and some of them were existed in the 'pink’ variant
Respon Berbagai Sumber Bahan Stek terhadap Kemampuan Berakar Stek Alstonia scholaris (L) R. Br. sebagai Upaya Penyediaan Bibit untuk Lahan Terdegradasi
Get PDFThe research about the respon of the material cuttings retrieval on rooting ability of Alstonia scholaris (L.) R. Br. Cuttings  in an effort provision of seeds for Degraded lands , conducted from October until December 2015 at Physiology Plant Laboratorium of Biology Department, Mathematics and Natural Science Faculty of Andalas University, Padang. The aim of this research to found the best  material cuttings on A. scholaris. This research used Completely Randomized Design (CRD) method. The treatments were the basal (A), the middle (B), and the apical (C). The results showed that the apical was the best material cuttings, with a average number of roots (3.967), and the average of root dry weights (0.832)g. The conclusion of this research is the that material cuttings of apical is the bst one for Pulai cutting
Komunitas Makrozoobentos di Sungai Gua Pintu Ngalau pada Kawasan Karst di Sumatera Barat
Get PDFPintu Ngalau cave is flowed by river from irrigated rice fields that flows into the cave. This cave has a source of organic matter derived from bats and swallow dirts, litter that falls on enterance of the cave and the organic material carried by the flow of the river. The study on the macrozoobenthos communities of river in Pintu Ngalau Cave has been conducted from October until November 2016. The study used survey method, where stratified random sampling was applied in three zones (light zone, dim zone and dark zone) at study site. Macrozoobenthos samples was collected by surber net. This study also measured the physic-chemical of water. The results showed the composition of macrozoobenthos in the Pintu Ngalau cave river consisted of 43 genera i.e Gastropods (2 genera), Hirudinea (2 genera), Insects (36 genera) and Oligochaetas (3 genera). Total density of macrozoobenthos in this site was 2100 ind/m2 and the highest density was found in dark zone. The highest total relative density (KR total=79,89%) on genus level at every zone was Hydropsyche. Diversity index of macrozoobenthos was classified as medium (H'=2.68) with evenness distribution was evenly (E=0.61) and no dominant genus (C=0.14). The existence of macrozoobenthos was not influenced by light intensity, but instead was more influence by the condition of the substrate and the flow of water in the cave
Pengaruh Penggunaan Beberapa Jenis Ekstrak Tanaman Beralkaloid terhadap Produk Teh Kombucha
Get PDFThe research about The Effect of Some Alkaloid’s Plant Extract as Activator and the plant media for Acetobacter xylinum (Brown.) Holland in Fermented of Kombucha Tea, has been done from February to September in STIKes Perintis Laboratory. The aim of this study to know the effects of some alkaloid’s plant extract as activator and the plant media for Acetobacter xylinum (Brown.) Holland in Fermented of Kombucha Tea. The research used Completely Random Design (CRD) with 6 treatments and 4 replications. The treatments were : black tea, green tea, leaf of coffea, leaf of cocoa, coffea powder and cocoa powder. The result showed that the use of several types of plant extract beralkaloid effect on Kombucha tea products. In this study obtained the average of the highest total bacteria Acetobacter xylinum 117.50 x 107 cfu / ml, the value of pH 3.82, sugar content 9.67. The results of the organoleptic assessment of flavor and taste showed the highest panelist favorites level in Kombucha chocolate powder that is 3.07 (very good) and 3.47 (very good)
Pengaruh Komposisi Media Tanam dan ZPT Air Kelapa terhadap Pertumbuhan setek pucuk Jeruk Kacang (Citrus reticulata Blanco).
Get PDF‘Limau kacang’ has been a specialty crop in the Solok region of West Sumatra. The spread of Citrus reticulata Blanco is still experiencing barriers and the population is threatened with extintion. Overcome the problem is done propagation of Citrus reticulata Blanco vegetatively with shoot cutting. The experiment on the influence of different growing media and hormonal growth of coconut water to the shoot cutting of Citrus reticulata Blanco has been accomplished at kanagarian Kacang Kecamatan X Koto Singkarak, Kabupaten Solok, this experiment started in June to October 2017. This research used Randomized Completely Block Design (RCBD) Factorial. The first factor was four different growing media (soil, soil : manure, soil : husk, soil : sand) while the second factor was two level coconut water concentrations (0% and 25%) with three replication. Variables analiyzed were the survival percentage, while emerging shoots, shoot length, number of leaf, number of shoot, number of root and root length. The result of this research showed that A3B0 treatment (planting media soil : manure without coconut water as hormonal growth) gave the best influence to the growth of shoot cuttings of Citrus reticulata Blanco.Â
Upaya Penggunaan Metode Telemetri untuk Penelitian Berang-Berang Cakar Kecil (Aonyx cinereus) di Area Persawahan
Get PDFCurrently, telemetry appeared as a common method to reveal home range and movement of animal. However, the telemetry method was not applied for small-clawed otter yet. We have spent efforts to use the telemetry methods from March to August 2016 in a rice field landscape in Lubuk Alung district, Padang Pariaman regency, West Sumatra. We trapped individuals of small-clawed otters (Aonyx cinereus) using leg-hold traps and box traps. We implanted radio transmitter intraperitoneally. Movement of the animal was recorded using triangulation methods. Two male individuals of small-clawed otters were captured. One individual died soon after the transmitter implantation and another individual was successfully implanted and released. However the individual were detected for 28 hours only. In this paper, we described the efforts and problems appeared from the trapping, transmitter implantation, releasing and radio tracking process
Ultrastruktur Morfologi Polen Arundina graminifolia (D.Don) Hochr. (Orchidaceae)
Get PDFPollen morphology of three variants of Arundina graminifolia in West Sumatra was examined. The pollen types, shapes, apertures and ornamentations were examined using scanning electron microscope. There was variation of pollen shape between three variant of Arundina graminifolia. There was different of pollen shape white variant to pink and purple variant. The pollen shape of white variant were oblate sferoidal. The prolate shapes were detected at pink and purpe variant. Three variants Arundina graminifolia have the same ornamentation exine that is the reticulum and there kolpus of the same type, namely tri-kolpate and tetra-kolpat
Komunitas Makrozoobentos sebagai Indikator Biologis Kualitas Air Sungai Masang Kecil yang Menerima Limbah Cair Industri Minyak Kelapa Sawit di Kinali Pasaman Barat
Get PDFThe industrial liquid waste of crude palm oil contains organic material that can lead to degradation of water quality and ultimately affect the macrozoobenthos communities living on the river bed. The Masang Kecil River in Kinali Pasaman Barat receives the liquid waste of the palm oil industry. The research aimed to find out the composition and structure of macrozoobentos community in Masang Kecil River and determine the water quality of river based on macrozoobenthic community structure was done in June 2017. The research was conducted by survey method with purposive sampling technique. Samples were collected on 3 stations: Station I before entering the liquid waste of palm oil industry, Station II after entering the waste, Station III is located after Station II which has been entered by Anak Aia stream. In each station collected three samples of macrozoobentos with a surber net size of 30x30 cm2. The results showed that macrozoobenthos community found 43 species consist of 33 species of Insecta, Oligochaeta 4 species, Gastropoda 3 species, Hirudinae 2 species, Arachnida and Turbellaria one species respectively. The largest number of individuals was shown by Insecta (71.89%) followed by Hirudinea (25.1%) and the other class was not more than 3%. The highest density is found at station III and the lowest at station I. The dominant species on station I were Stenelmis sp. and Psephenoides sp., stations II and III were Erphobdella sp. and Hydropsyche elisoma. The diversity index ranges from 1.49 to 3.01. The index of equitability ranges from 0.47 to 0.89, the dominant index ranges from 0.06 to 0.43. The similarity of communities between station ranged from 38.46 - 55.0%. Based on the index of diversity, water quality in Station I was classified as not polluted, Station II and III classified as moderate
Pengaruh Naphthalene Asam Asetat (NAA) pada Pertumbuhan Akar Pisang Raja Kinalun Secara In Vitro
Get PDFThe influence of Naphthalene Acetate Acid (NAA) on the in vitro root growth of banana Raja Kinalun was carried out from April to September 2015 in The Laboratories of Plant Physiology and Tissue Culture, Faculty of Mathematics and Natural Sciences, University of Andalas, Padang. The aim of  this study was to find the effective concentration of NAA for initiation of root. This study used a Completely Randomized Design (CRD) with four treatments and three replications. The treatments were: without NAA (control); NAA 1 ppm, NAA 2 ppm and NAA 3 ppm. The result showed that the effective doses were NAA 1 and 2 ppm for each number of roots growth
Mikroalga Divisi Bacillariophyta yang Ditemukan di Danau Aur Kabupaten Musi Rawas
Get PDFLake Aur has many aquatic biota as well as become one of the mainstay attractions in Musi Rawas Regency. Community activities and lack of awareness of tourists on the cleanliness and importance of maintaining the lake environment have an impact on water pollution. One of the organisms that can be used as an indicator of river water quality is microalgae. The purpose of this study is to determine the types of microalgae Bacillariophyta divisions that exist in the lake Aur, Musi Rawas.The type of research used is survey research. Bacillariophyta Division consists of two classes, 6 orders, 7 families, 8 genera and 11 species. Observed environmental factors: temperature: 290C, pH: 6.7, Brightness: 115 cm and dissolved oxygen amount of: 38 mg / L. Based on the results of research and discussion, we can conclude that: the type of microalgae division bacillariophyta were found in Lake Aur namely: Cylotella sp, Eunotia sp, Eunotia pectinalis, Fragilaria croronensis, Synedra acus, Nitzschia sp, Nitzschia acicularis, Surirella sp, Surirella elegans, Pinnularia sp and Stauroneis sp