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TUMBUHAN YANG DIKUNJUNGI LEBAH PEKERJA Apis dorsata Fabr (HYMENOPTERA: APIDAE) DI PALANGKI KECAMATAN IV NAGARI KABUPATEN SIJUNJUNG Yawati, Septri; Jasmi, Jasmi; Rizki, Rizki
Pendidikan Biologi Vol 2, No 2 (2013): Jurnal Mahasiswa Pendidikan Biologi Genap 2013-2014
Publisher : STKIP PGRI Sumbar

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ABSTRACTApis dorsata Fabr is one of the insects that benefit humans , especially itcan produce honey . Honey bee colony consists of a queen bee , drones and  bees worker. Apis dorsata in life is influenced by the environment one food source availability . Related with that have done research on the plant visit Apis dorsata Fabr bees worker ( Hymenoptera : Apidae ) in Palangki Kecamatan IV Kabupaten Sijunjung on April 2013 with the aim to determine which plants visited by bees Apis  dorsata  Fabr  workers  in  Palangki  Kecamatan  IV  Nagari  Kabupaten Sijunjung . This study uses direct observation of plants visited by bees field workers . The study was conducted one month , once a week starting from 06.00 until 18.00 with a distance of 500 meters from the tree where the colony of Apis dorsata . From the results of research on plant visit Apis dorsata Fabr bees worker ( Hymenoptera : Apidae ) in Palangki Kecamatan IV Nagari Kabupaten Sijunjung within a radius of 500 meters to 30 species and 16 familia . Familia is most commonly found in plants visited Apis dorsata Fabr bees worker ( Hymenoptera : Apidae ) in   Palangki Kecamatan IV Nagari Kabupaten Sijunjung familia Leguminoceae is composed of nine species.  
Efektivitas Pupuk Bio organik Terhadap Produksi Tanaman Semangka (Citrullus vilgaris L.) di Desa Sungai Tunu Barat Kecamatan Ranah Pesisir Kabupaten Pesisir Selatan Hayani, Hayani; Rizki, Rizki; Novi, Novi
Pendidikan Biologi Vol 2, No 2 (2013): Jurnal Mahasiswa Pendidikan Biologi Genap 2013-2014
Publisher : STKIP PGRI Sumbar

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ABSTRACTWatermelon (Citrullus vulgaris L.) is one fruit crop is popular because it tastes sweet, crisp and a lot of water content. Requirement of watermelon continues to increase while the production is still low.  Economic value of watermelon is quite high and is expected to increase revenues society therefore to increase the production of watermelon cultivation needs to be done. Watermelon cultivation using organic bio fertilizers other environmentally friendly can also add soil organic matter and very simple acquiring. The objectives of this research is to determine the effectiveness of Bio organic fertilizer for crop production of watermelon (Citrullus vulgaris L.)  which includes: fruit weight, fruit diameter and number of pieces. This research has been conducted on farmers field Tunu River Village Sub Domains West Coast South Coastal District from April to June 2013. This type of research is experimental, this study using Cluster Randomized Design (RAK) with 4 treatments and 6 repetitions, each treatment is a control (Urea, NPK, SP36 and KCL), B (Bio Organic 2%), C (4% organic Bio), D (6% organic Bio) parameters measured were fruit weight, fruit diameter and number of pieces. Data were processed using analysis of variance and continued DNMRT test at level 5%. The results were analyzed by analysis of variance after directing that the use of Bio organic fertilizer is not a real effect on crop production covering a total of watermelon fruit, fruit weight and fruit diameter compared dangan use of inorganic fertilizers. From the research results it is advisable for farmers to use organic bio fertilizer in crop cultivated watermelon pupuknya for more economical and environmentally friendly.
DAYA HAMBAT INFUSA DAUN BAYAM UNGU (Alternanthera brasiliana Kuntze.) TERHADAP PERTUMBUHAN Escherichia coli Kayani, Wisma; Fifendy, Mades; Rizki, Rizki
Pendidikan Biologi Vol 2, No 2 (2013): Jurnal Mahasiswa Pendidikan Biologi Genap 2013-2014
Publisher : STKIP PGRI Sumbar

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ABSTRACT Bayam ungu (Alternanthera brasiliana Kuntze.) efficacious for treating various diseases . Parts  used  are the leaves.  Spinach  purple   has a chemicals  such  as  tannins,  saponins,  and flavonoids. Escherichia coli is a bacteria found in that stout opportunist in human colon as normal flora. Escherichia coli suspected as a cause of diarrhea that sometimes arise in humans and animals . Research has been conducted in order to determine the inhibitory infusa purple leaf spinach (Alternanthera brasiliana Kuntze.) on the growth of Escherichia coli. This research was conducted at the Laboratory of Basic Biology Education Program STKIP PGRI West Sumatera in January 2013 , using a completely randomized design with 6 treatments and 4 replications with each infusion concentrations were 10 % , 20 % , 30 % , 40 % , 50 %. Analysis of the data showed that treatment with each test level α f 5 % and followed by BNT test. The results showed that infusion violet leaf spinach (Alternanthera brasiliana Kuntze.) could inhibit the growth of Escherichia coli. 
JENIS-JENIS ARACEAE DI KAWASAN CAGAR ALAM LEMBAH ANAI KABUPATEN TANAH DATAR SUMATERA BARAT Ananda, Renta Dwi; M, Des; Rizki, Rizki
Pendidikan Biologi Vol 2, No 2 (2013): Jurnal Mahasiswa Pendidikan Biologi Genap 2013-2014
Publisher : STKIP PGRI Sumbar

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ABSTRACT Aracea is the latex herba that has spatha flower and spadik flower.  Generally, it lives wet area and most protect, there are some species of the plant live in dry area and exposed. Lembah anai preserve is some of nature conservation in West Sumatera. There is not researcher or reporter find out species of Aracea in Lembah anai preserve. The purpose of the research is to get information and description about species of Aracea   that find out in Lembah anai preserve regency Tanah Datar west Sumatera. This research starts in March until June 2013 by using direct survey method in the field, acquired data based on descriptive analysis. Based on this research got the result 34 species of Aracea that include 14 genus in lembah anai preserve kabupaten Tanah Datar west sumatera. The example of genus are Alocesia (1 spacies), Amydrium (1 species), Amorphophallus (1 species), Anadendrum (2 species ), Apobalis (1 species ), Arisaema (1 species), Caladium (2 species), Colocasia (1 species), Dieffenbanchia (1 species), Homalomena (2 species), Rhaphidophora (6 species), Schismatoglottis (4 species), Scindapsus (9 species) and Syngonium (1 species).   
STUDI ETNOBOTANI HUTAN MANGROVE DI TELUK BUO KECAMATAN BUNGUS TELUK KABUNG KOTA PADANG Sari, Dian Marta; Eka Putri, Irma Leilani; Rizki, Rizki
Pendidikan Biologi Vol 2, No 2 (2013): Jurnal Mahasiswa Pendidikan Biologi Genap 2013-2014
Publisher : STKIP PGRI Sumbar

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ABSTRACT Ethnobotany is a study of benefit plants by the society to support life need. It has great benefit especially for the society who live around mangrove area. One of mangrove forest in West Sumatera is in Teluk Buo Kecamatan Bungus Teluk Kabung Padang city. It has many advantageous. It can be physical aspect, ecological aspect and economical aspect. The purpose of this study is to find the kinds of mangrove that was used by the people in Teluk Buo Keamatan Bungus Teluk Kabung Padang city. This research was conducted on June 2013. The method that as use is survey method through observation and directly selecting the sample in the field of the research, monitoring, collecting the note in the field. The sampling technique was using vertical and horizontal technique. Collecting of data by society with 33 respondent. The research meet 17 species mangrove plants benefit by society, 11 species benefit to medicine is Ardisia elliptica, Hibiscus tiliaceus, Melastoma candidum, Acanthus illicifolius, Bruguiera gymnorrhiza, Lumnitzera littorea, Pongamia pinnata, Scyphiphora hidrophyllaceae, Rhizophora apiculata, Ceriops tagal, and Cassia alata. 15 species mangrove plants  to benefit another is Ardisia elliptica, Hibiscus tiliaceus, Melastoma candidum, Bruguiera gymnorrhiza, Lumnitzera littorea, Pongamia pinnata, Scyphiphora hidrophyllaceae, Rhizophora apiculata, Aegiceras corniculatum, Ficus microcarpa, Dolichandrone spathacea, Pandanus odoratissima, Nypa fruticans, Ceriops tagal and Sonneratia caseolaris.  
HUBUNGAN AGIHAN JENIS TUMBUHAN DENGAN TEKSTUR TANAH DI HUTAN MANGROVE TELUK BUO KECAMATAN BUNGUS TELUK KABUNG KOTA PADANG Kumalasari, Nesya; Eka Putri, Irma Leilani; Rizki, Rizki
Pendidikan Biologi Vol 2, No 2 (2013): Jurnal Mahasiswa Pendidikan Biologi Genap 2013-2014
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ABSTRACT Soil is one of important factors directly affecting growth and development of mangrove forest. The relationship between mangrove and soil is complemented by the ability of different types of mangrove to grow in different substrates. Rhizopora apiculatais distributed in all textures of soil (loam, sandy loam, clay loam, sandy clay loam, clay and loam sandy). Sonneratia caseolarisis distributed in loam, sandy loam, clay loam, sandy clay loam and clay. Aegiceras corniculatumis distributed in loam, sandy loam, sandy clay loam and loam sandy. Dolichandrone spathacea is distributed in loam, sandy loam, clay loam, and sandy clay loam. Bruguiera gymnhorrizaand Hibiscus tiliaceus are distributed in loam,sandy loam, and sandy clay loamwhile Acanthus ilicifolius is distributed in loam and sandy clay loam. This study aims to comprehend the relation between the distribution of the plant with the texture of soil in the mangrove forest of  teluk  buo in the subdistrict of bungus teluk kabung in the city of padang. This deskriptive work was performed form June to July, 2013. Samples were colected from a 10 m by 10 m study plot placed along transection line from the star of shoreline until the border between mangrove and land forest. At the study location  transections were created with the lenght of 160 m (transection 1) and 180 m (transection 2). With the distance between recorded for each plot, knows plants were recorded on the spot while the unknows were collected at mangrove forest of the teluk buo and soil textures were determined at the laboratories. The study found that there are six types of soil textures in the area consisted of loam,sandy loam, clay loam, sandy clay loam, clay and loam sandy. Distributed plants were identified as Rhizophora apiculata, Sonneratia caseolaris, Aegiceras corniculatum. Bruguiera gymnhorriza, Dolichandone spathacea, Acanthus ilicifolius, and Hibiscus tiliaceus.
PROFIL HUTAN MANGROVE TELUK BUO KECAMATAN BUNGUS TELUK KABUNG KOTA PADANG Elva, Novia Monika; Eka Putri, Irma Leilani; Rizki, Rizki
Pendidikan Biologi Vol 2, No 2 (2013): Jurnal Mahasiswa Pendidikan Biologi Genap 2013-2014
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ABSTRACT Profile of vegetation is the world’s oldest methods determining the architecture of a forest canopy. Forest profile diagrams can also be used to portray the vertical structure (stratification) or horizontally from the forest. With the forest profile is also used to predict the condition of a trees of the future, trees of the present and trees of the past. The purpose of this study was to determine profile of mangrove forest and future predict environment in mangrove forest Teluk Buo Kecamatan Bungus Teluk Kabung Kota Padang. Methods used in this research is belt transect. The profile of this forest made by making transect perpendicular to the edge of the lagoon, mangrove vegetated areas cut off from the front to the back of the mangrove forest. On the belt transect made a plot continuously with size 10x10m, making the forest profile is made with the data in diameter. Profile Teluk Buo Kecamatan Bungus Teluk Kabung Kota Padang forest has one tree strata. 
AGIHAN JENIS TUMBUHAN DAN HUBUNGANNYA DENGAN PASANG SURUT DI HUTAN MANGROVE TELUK BUO KECAMATAN BUNGUS TELUK KABUNG KOTA PADANG Sari, Defri Novita; Eka Putri, Irma Leilani; Rizki, Rizki
Pendidikan Biologi Vol 2, No 2 (2013): Jurnal Mahasiswa Pendidikan Biologi Genap 2013-2014
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ABSTRACT Mangrove is a typical tropical and subtropical forest plant, grows along the coast or river estuary and affected by the ebb and ride of the sea. The ebb is a factor that determines the distribution of mangrove forest. Almost all mangrove plants have floating seeds, and this results in its easy dissemination by the water to the back of the forest. The purpose of this study is to comprehend the relationship between type of the plats distribution with the tidal wave if the mangrove forest of Teluk Buo, in the district of Bungus / Teluk Kabung, in the city of Padang . This descriptive study was performed during June-July 2013. Samples were collected from two research transection. In the location two transections were created at the lengths of 160 m and 180 m perpendicular to the shore lines toward the forest. Each transection consisted of 16 and 18 observation plots with the size 10 m by 10 m each, with the distance between transections at 100 m to better represent the forests vegetation. The result shows that in the mangrove forest of Teluk Buo there are seven types of mangrove plats, those are Rhizophora apiculata, Sonneratia caseolaris, Aegiceras corniculatum, Acanthus ilicifolius, Bruguiera gymnorrhiza, Dolichandrone spathacea, dan Hibiscus tiliaceus. The height of ebb-tide waves has big influences on the distribution of the plants types. The distribution successively from the shore line to the back of the forest are Rhizophora apiculata, Sonneratia caseolaris, Aegiceras corniculatum, Bruguiera gymnorrhiza, Dolichandrone spathacea, Acanthus ilicifolius, and Hibiscus tiliaceus. The type with the broadest distribution at the highest tide is Rhizophora apiculata. 
PENGARUH BEBERAPA KONSENTRASI SITOKININ TERHADAP PEMBENTUKAN BUAH PARTENOKARPI PADA TANAMAN CABAI (Capsicum annum L.) Rahmayani, Elva; Rizki, Rizki; Novi, Novi
Pendidikan Biologi Vol 2, No 2 (2013): Jurnal Mahasiswa Pendidikan Biologi Genap 2013-2014
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ABSTRACT             Chili of cultivation will be attracted for most of farmers because the highest economic value. It influences by the quality of chili it self. Nowadays, the quality of chili’s cultivation is still low. One of the way to solve this problem is partenocarpy. This research aims ti know the effect some cytokinin concentrate to establish the chili’s fruit (Capsicum annum L.). the research has done on February until August in 2013 in Green House of Biology, Science and Math Faculty, UNAND by using RAL (Random design complete) with 6 treatmenst and 4 repetations. The control without, cytokinin concentrate 20 ppm, 40 ppm, 60 ppm, 80 ppm, and 100 ppm. The result of this research shows that giving concentrate 80 ppm is the best in avolding seeds with average 5,25 seeds, 100 ppm for size, diameter, and weight of the chili. 
JENIS-JENIS TUMBUHAN PAKU YANG TERDAPAT DI KELURAHAN BARINGIN KECAMATAN LUBUK KILANGAN KOTA PADANG Surianti, Marlinda; Nursyahra, Nursyahra; Rizki, Rizki
Pendidikan Biologi Vol 2, No 2 (2013): Jurnal Mahasiswa Pendidikan Biologi Genap 2013-2014
Publisher : STKIP PGRI Sumbar

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ABSTRACT The research background is that there are plant ecosystem changes caused human activity, and we can found that cutting tree in the forest and was changed to farming area and impact to vegetasi of plant around. This research to knowing variant of fern at Kelurahan Baringin Kecamatan Lubuk Kilangan Kota Padang have been done at July – August 2013. Survey and descriptive method used in plant inventory, identification was doing at Botani Laboratory biology STKIP PGRI Sumbar. Result of research obtained 17 species and 9 familia is consist of teresterial fern and epifit fern. Terrestrial fern has many variant such as Blechnum orientale Linn., Nephrolepis biserrata (Sw.) Schott., Nephrolepis hirsutula (Forst. Pr.), Gleichenia linnearis (Burm.) Clarke., Lycopodiella camparum L., Lygodium circinatum Sw., Lygodium volubile Sw., Phymatodes longissima (BI.) J.Sm, Selaginella plana Hieron., Thelypteris abrupt (Desv.) Proctor., Thelypteris khuntii (Desv.) Morton., Thelypteris resinifera (Jerman) Proctor., Thelypteris sp, Macrothelypteris torresiana (Gaudich.) Ching.. and epifit fern consist of Asplenium nidus L., Davalia denticulate (Burm.) dan Drynaria sparsisora Moore.Â