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All Journal Jurnal Online Mahasiswa (JOM) Bidang Matematika dan Ilmu Pengetahuan Alam Jurnal Online Mahasiswa (JOM) Bidang Keguruan dan Ilmu Pendidikan Sagu
Herman '
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Agriculture, Biological Sciences & Forestry Chemical Engineering, Chemistry & Bioengineering Decision Sciences, Operations Research & Management Education Environmental Science Industrial & Manufacturing Engineering Mathematics

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RESPON KECAMBAH PADI (Oryza sativa L.) SOLOK TERHADAP CEKAMAN GARAM Rahmi Anandia; Dewi Indriyani Roslim; Herman '
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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The salt-stress tolerant rice genotypes are very important to overcome the salt stress in coastal area. This study was aimed to analyze the responses of shoot and root of rice seedlings to the salt stress. The rice genotype (Solok) tested was originally from Kecamatan Bantan, Kabupaten Bengkalis. This study was conducted using Randomized Block Design with three replications. The rice was treated with different salt concentrations, i.e 0 mM (control), 15 mM, 30 mM, and 45 mM. The results showed that the root growth and biomass of Solok genotype was not significantly different between various treatments. This happened because the salt concentration was low. Similarly with the root growth and biomass, the shoot growth and biomass of Solok genotype was not significantly different between various treatments of the salt-stress.
ISOLASI DNA TANAMAN PADI (Oryza sativa L.) ASAL KECAMATAN BANTAN, BENGKALIS – RIAU. Dita Deanesia; Dewi Indriyani Roslim; Herman '
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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Excess  of  Fe  in  costal  land  in  Riau Province  is potential to  poison the  roots  of  plants. However,the plants have their  own  mechanism  to overcome  the Fe overload.  This  study was aimed  to  isolate  the total   DNAof rice plants among  three  local  rice genotypes  from Riau  which are  commonly  planted in costal  land  in  Bengkalis,  Riau, with  Fe overload resistant  swamp  rice variety  (Mahsuri)  and Fe overload sensitive rice variety  (IR64). The experiment was conducted  in the Laboratory of Genetics, FMIPA UR,from January to May   2014. Research methods  consisted of  isolation  of DNA  and  electrophoresis.  In this study  isolation of DNA  from five rice  varieties  was succesfully done. Among those DNA, concentration  of  total DNA  which were  obtained from IR64 and Amat Candu were very high.
POTENSI EKSTRAK Cymbopogon citratus DC. DAN Mucuna bracteata DC. TERHADAP PENGHAMBATAN PERKECAMBAHAN DAN PERTUMBUHAN GULMA Borreria alata (Aublet) DC. Dewi Yuni Safitri; Siti Fatonah; Herman '
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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One of the environmentally friendly alternative in controlling weed is by using organic herbicides. The potential plant as organic herbicides such as Cymbopogon citratus and Mucuna bracteata, contain essential oils and allelopat. This research aimed to determine the extract influence and the best concentration of C. Citratus and M. bracteata in inhibiting the germination and growth of Borreria alata. This research used a randomized design with seven treatments i.e. control (0%), 20%, 40%, 60% C. Citratus extract and 20%, 40%, 60% M. bracteata extract. The observed data were analized using ANOVA and if significantly different followed by DMRT. The results showed that all treatments of the extract decreased the germination and growth of P. conjugatum and Borreria alata. The best extract was 40% and 60% M. bracteata that inhibit the germination and growth of B. alata.
PERTUMBUHAN DUA JENIS CACING TANAH DALAM MEDIA LIMBAH PELEPAH SAWIT DENGAN KOTORAN AYAM Dini Nuraini; Yusfiati '; Herman '
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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Earthworms have characteristic and a different range of tolerance to environmental conditions such as pH and soil organic content. The purpose of this study was to determine the growth of earthworm Perionyx sp1 (worm milk) and Perionyx sp2 (red worm) in waste of the oil palm frond with chicken manure media. The parameters measured were body weight, number of coccoons produced, temperature and soil pH. The eksperiment were designed using factorial completely randomized with 5 treatment and 3 replications. The data were analysz using (ANOVA) with DMRT at 5% significant. The results showed that earthworm weight and the number of coccoon was significantly different at treatment media (P> 0.05). The traetment with 75% of oil palm fronds waste and 25% chicken manure were the best media to increased body weight and the number of coccoons for both earthworm.
KARAKTER MORFOLOGI UBI KAYU (Manihot esculenta Crantz) HIJAU DARI KABUPATEN PELALAWAN Rini Restiani; Dewi Indriyani Roslim; Herman '
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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Many cassava varieties or genotypes have been grown or planted by farmer in Pelalawan, and one of them is cassava cv. Hijau. This study was aimed to identify morphological character of cassava cv. Hijau from Pelalawan. The cassava stems were obtained from Langgam, Kabupaten Pelalawan. The seven cassava stems were planted as replication. Morphological characters, including leaf shape, color of apical and fifth leaf, petiole color, stem color, stem diameter, flower, fruit, and tuber, were observed on 5 and 12 months after planted. Results showed that cassava cv. Hijau had lanceolate leaf with sharp tip, light-green apical leaf, and dark-green fifth leaf. The petiole was yellowish-green. The stem diameter was medium (12-25 mm) and the color stem was yellowish-green. The flower was monoecious. The fruit was rounded and jagged. The tuber shape was cylindrical and its color was white.
DESKRIPSI KARAKTER MORFOLOGI UBI KAYU (Manihot esculenta Crantz) JURAY DARI KABUPATEN ROKAN HULU Murtiana Caniago; Dewi Indriyani Roslim; Herman '
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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Cassava is an alternative food to substitute rice as a staple food. The improvement of cassava in breeding program requires many high genetic diversity of cassava. The objective of this study was to describe the morphological characters of cassava cv. Juray from Kabupaten Rokan Hulu, Riau. This research was conducted at Biology Department, FMIPA UR, for 12 months, started from March 2013 to February 2014. The cassava stems were planted and then observed on fifth and twelfth months. The results showed that cassava cv. Juray had morphological characters as follows: the stem color was grey, the stem diameter was large (3.4 cm), the stem texture was grooved, the petiole length was medium (9.77), the flowering time was 10 months after planting, the tuber shape was irregular, the external color of tuber was light brown, the tuber cortex thickness was thin (1 mm), the tuber cortex color was cream, and the root pulp color was white.
KEKERABATAN Bulbophyllum dan Vanda DI PEKANBARU BERDASARKAN KARAKTER MORFOLOGI Fitriani K. U; Herman '; Nery Sofiyanti
Jurnal Online Mahasiswa (JOM) Bidang Matematika dan Ilmu Pengetahuan Alam Vol 1, No 1 (2014): Wisuda Februari 2014
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Matematika dan Ilmu Pengetahuan Alam

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Bulbophyllum and Vanda are tropical orchids that are widely distributed in many regions inIndonesia, as well as in Pekanbaru, Riau. These genera have their own beauty with uniquemorphological characters, therefore they attract most people especially orchid lover. Thisresearch aimed to identify the species of Bulbophyllum and Vanda in Pekanbaru and todetermine their relationship based on their morphological characters. One hundred eighteencharacters were scored from 10 orchid species, these characters were then analyzed usingNTSyst 2.02. The result identified five Bulbophyllum species (B. vaginatum, B. medusa,B.machrantum, B. echinolambium and B. coroliferum) and five Vanda species (V. teres, V.dearei, V. limbata, V. tricolorand V. sumatrana). The similarity coefficient was rangedfrom 0.24-0.72. The dendogram was mainly divided into two groups (A and B). Group Aconsisted of all Vanda species while B consisted of all Bulbophyllum species.
POLONG PALING SEDIKIT PADA GALUR KACANG HIJAU (Vigna radiata (L.) Wilczek) LOKAL KAMPAR Desnilia '; Herman '; Dewi Indriyani Roslim
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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The mungbean demand in the market increases but it is difficult to provide the stock because mungbean production is low due to low interest of local people to cultivate thisspecies. Riau Province has common mungbean strain, i.e. Kampar local strain that has low fruit production, unsimultaneous ripe physiological characters, and trichomes. One of the effort of plant breeding use of strain purification. The purpose of this study was to identify the second generation of local mungbean strain from Kampar that has thelowest number of pods. The experiment was conducted from April to June 2013 in the gardens of Biology, Faculty of Math and Natural Science, University of Riau using a completely randomized design. Eight strains were examined with five replications in each strain. The observed character was number of pod. Data was analyzed using SPSS 16.0. The results showed that mungbeans strains (G1, G2, G3, G4, and G6) had thelowest number of pods.
POTENSI EKSTRAK DAUN Chromolaena odorata (L.) DAN Piper betle (L.) SEBAGAI HERBISIDA ORGANIK TERHADAP PENGHAMBATAN PERKECAMBAHAN DAN PERTUMBUHAN Mikania micrantha Kiki Anggriani; Siti Fatonah; Herman '
Jurnal Online Mahasiswa (JOM) Bidang Matematika dan Ilmu Pengetahuan Alam Vol 1, No 1 (2014): Wisuda Februari 2014
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Matematika dan Ilmu Pengetahuan Alam

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The alternative way of environmentaly friendly weed controlling is to use Chromolaenaodorata and Piper betle extract that contain allelopathic compound and potential asorganic herbicides. The purpose of this research was to know the influence ofChromolaena odorata and Piper betle extracts in inhibiting the germination and growthof Mikania micrantha and to determine the best concentration of extracts in weedcontrolling. This research used Randomize Complete Design. The collected data wasanalyzed using Analysis of Variance (ANOVA), followed by Duncan’s Multiple RangeTest if the result is significantly different. The experiment results showed that thegermination and growth of Mikania micrantha weed were reduced because of thetreatment using Chromolaena odorata and Piper betle extract. The most efficientextract concentration in controlling weed was 10% of Chromolaena odorata extract.
PENERAPAN MODEL KOOPERATIF TIPE NUMBERED HEADS TOGETHER (NHT) UNTUK MENINGKATKAN HASIL BELAJAR IPA SISWA KELAS V SD NEGERI 008 SIPANG Herman '; Otang Kurniaman; Hendri Marhadi
Jurnal Online Mahasiswa (JOM) Bidang Keguruan dan Ilmu Pendidikan Vol 4, No 1 (2017): Wisuda Februari 2017
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Keguruan dan Ilmu Pendidikan

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Abstract: This study, entitled Implementation of Model Cooperative Numbereds type Heads Together (NHT) To Improve Outcomes Science Learning Student Class V SD Negeri 008 Sipang. This study aims to improve learning outcomes fifth grade science students of SD Negeri 008 Sipang. The method used is the method of classroom action research (PTK) which is implemented in the second semester of the 2015/2016 academic year. The research sample is 20 students. The results obtained from the study average results of study before action 66.50 with a percentage of 40% increased to 65% with an average of 74 in cycle I. In the second cycle increased to 90% with an average of 83. Activities teachers in cycle the first meeting I earn a percentage of 62.50% with a good category, at the second meeting with a percentage increase of 75.00% in both categories. Furthermore, the first meeting of the second cycle of teacher activity also increased with the percentage of 84.37% is very good category and at the second meeting of the second cycle increased again with a percentage of 90.62% is very good category. Activities of students in the first cycle of the first meeting of the percentage of 56.25% gain enough categories, at a second meeting has increased by 65.62% the percentage of both categories, in this cycle the students begin to understand the learning activities by implementing cooperative learning model Numbered Heads Together characterized by activity students in the second cycle the first meeting with a percentage of 78.12% increased both categories. At the second meeting of the second cycle increased with the percentage of 84.37% sangatbaik category. The results of the study in class V SD Negeri 008 Sipang prove that the implementation of cooperative learning model Numbered Heads Together to improve learning outcomes fifth grade science students of SD Negeri 008 Sipang.Keywords: Numbered Heads Together, learning outcomes IPA
Co-Authors Desnilia ' Dewi Indriyani Roslim Dewi Yuni Safitri Dini Nuraini Dita Deanesia Fitriani K. U Fitriani Karlita Hendri Marhadi Idwar, Idwar Kiki Anggriani Laksono Trisnantoro Murtiana Caniago Nery Sofiyanti Otang Kurniaman Purwoko, Agus Rahmi Anandia Rini Restiani Yusfiati Yusfiati