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Yossi Oktorini
Jurusan Kehutanan, Fakultas Pertanian, Universitas Riau
Agriculture, Biological Sciences & Forestry Arts Humanities Biochemistry, Genetics & Molecular Biology Civil Engineering, Building, Construction & Architecture Computer Science & IT Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Energy Environmental Science Health Professions Immunology & microbiology Industrial & Manufacturing Engineering Law, Crime, Criminology & Criminal Justice Mathematics Medicine & Pharmacology Nursing Physics Public Health Social Sciences

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PEMANFAATAN LIMBAH CAIR TAHU SEBAGAI PEMACU PERTUMBUHAN BIBIT GERONGGANG (Cratoxylon arborescens) Fiki Rangga Abdi; M. Mardhiansyah; Yossi Oktorini
Jurnal Online Mahasiswa (JOM) Bidang Pertanian Vol 7 (2020): Edisi 2 Juli s/d Desember 2020
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Pertanian

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Cratoxylon arborescens is a local tree of peat swamp forest that has the potential to be a candidate for planting in the initial phase of peat restoration. Quality seeds will be produced from well-managed nurseries. One aspect of nursery management is the provision of appropriate fertilizers and the right dosage. Giving this fertilizer can be done using tofu liquid waste. The purpose of this study was to determine the effect of tofu liquid waste on the growth of Cratoxylon arborescens seedlings and determine the best composition of tofu liquid waste to spur the growth of Cratoxylon arborescens seedlings. This research was conducted with a completely randomized design method (CRD), which consisted of 5 (five) treatments. Each treatment was repeated three times, so that 15 unit experiments could be obtained. Each experimental unit consists of five plants so that the total plant is 75 units. Concentration of tofu liquid waste for Cratoxylon arborescens seedlings is without giving (control), 20%, 40%, 60%, and 80%. The results showed that the application of tofu liquid waste affected the growth of Cratoxylon arborescens seedlings. The best composition of giving tofu liquid waste is giving tofu liquid waste as much as 20% (Treatment P1) with a yield of 100% life, height growth of 16.84 cm, seed diameter of 3.60 mm, plant dry weight of 4.18 gr and the top-root ratio of 2.72.Keywords : Cratoxylon arborescens, tofu liquid waste, Growth  
IDENTIFIKASI JENIS DAN KARAKTERISTIK POHON PENGHASIL BUAH-BUAHAN DI HUTAN LARANGAN ADAT KENEGERIAN RUMBIO KECAMATAN KAMPAR KABUPATEN KAMPAR PROVINSI RIAU Ika Purnama; Defri Yoza; Yossi Oktorini
Jurnal Online Mahasiswa (JOM) Bidang Pertanian Vol 4, No 1 (2017): Wisuda Februari Tahun 2017
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Pertanian

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The Forest Reserve of  Kenegerian Rumbio has potential as producing trees of forest fruit. Research on the identification of the type and characteristics of the fruit-producing trees in surrounding the Forest Reserve of  Kenegerian Rumbio has not been done, so the data and clearer information of the fruit-producing trees has not been available. This study aims to determine the type and characteristics of the fruit-producing trees in Panoghan zone and Sialang Layang zone of the Forest Reserve of  Kenegerian Rumbio. This research was conducted by using the method of track / transect with a width of 20 meters and a length of 500 meters. The transect position in the field was determined by using Purposive Sampling technique. Based on observations from both transects, 15 species of fruit-producing trees with the number of individuals 58 fruit-producing trees were found , which each transect has different individual number. Results of tree species diversity index of fruit-producing trees in Panoghan zone is 1.96 and Sialang Layang Zone is 2.3, which means included in the medium category.Keywords: Identification of Species,Fruit- Producing Trees, Species Diversity Index, Forest Reserve of  Kenegerian Rumbio
Aplikasi Pupuk Organik Cair (POC) Urin Sapi Terhadap Pertumbuhan Semai Jelutung Rawa (Dyera lowii Hook. F) Pada Medium Gambut Dwi Basliana Okta; M. Mardhiansyah; Yossi Oktorini
Jurnal Online Mahasiswa (JOM) Bidang Pertanian Vol 7 (2020): Edisi 2 Juli s/d Desember 2020
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Pertanian

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Dyera lowii Hook.f is one of the forestry plants that can grow on peatlands. Dyera lowii plants are able to restore damaged peatlands such as forest fires. Cow urine contains growth aphrodisiacs that can be used as growth regulators including (IAA). Cow urine also has a positive influence on vegetative growth in plants. The purpose of this research is to determine effect and the best concentration of liquid organic fertilizer (LOF) of cow urine on the growth of Dyera lowii on peat media. The study used a Completely Randomized Design (CRD) method consisting of 4 treatments and 4 replications so that 16 units of the experiment would be obtained. The treatments are: K0 (without application of cow urine / control) K1 (application of cow urine concentration 20%) K2 (application of cow urine concentration 50%) K3 (application of cow urine concentration 80%). Data were further analyzed using variance, with SPSS software version 20.0. This test is carried out to find out if there is, at least one treatment that significantly affects the research. If there is, it must be continued with a test (DMNRT) with a level of 5%. Application of liquid organic fertilizer (LOF) of cow urine influences the growth of swamp Dyera lowii and the best concentration of  liquid organic fertilizer of cow urine to stimulate the growth of swamp Dyera lowii on peat media is a concentration of 20% (K1 treatment) increase in seedling height of 0.89 cm, dry weight of plants 0.74 gr and top root ratio 2.21. Keywords: Liquid organic fertilizer, cow urine, Dyera lowii Hook.f, peat media
IDENTIFIKASI POTENSI EKOWISATA DI HUTAN LARANGAN ADAT DESA RUMBIO KEMATAN KAMPAR KABUPATEN KAMPAR Dicky Zulkarnaen; Defry Yoza; Yossi Oktorini
Jurnal Online Mahasiswa (JOM) Bidang Pertanian Vol 3, No 1 (2016): Wisuda Februari 2016
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Pertanian

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Ecotourism is one form of tourism which is managed by conservation approaches. Ecotourism as part of the concept of tourism development has progressed. with more and more interest in these types of tours based on environmental sustainability. Then in the development of natural tourist destinations obtained reciprocal relationship of mutual benefit between humans as creatures who enjoy nature in its activities with well-preserved nature. This research was conducted in the Hutan Larangan Adat village Rumbio, District Kampar, Province of Riau. This research was carried out for 1 month in November, 2015. Hutan Larangan Adat is a high heritage of indigenous peoples in Rumbio, stored in a variety of natural resources and flora and fauna typical of this area. Geographically situated between 0 ° 56'12 "north latitude and 1 ° 28'17" north latitude, 100 ° 56'10 "east longitude to 101 ° 43'26 '' East Longitude and have an area of approximately 499.30 hectares in 2013. Based on the results of research on the identification of the tourism potential, it can be concluded that the area Hutan Larangan Adat in the village Rumbio very suitable to serve tourist sites include natural attractions like the river which is very clear, fruit trees, plants herbali, large trees are extremely rare in tropical rainforest, see and hear the chirping of various species of birds and other wildlife, as well as historical attractions such as the bulwark against Dutch colonialism.     Keywords: Ecotourism, Hutan larangan adat, Village Rumbio
PENGEMBANGAN HUTAN RAKYAT BERBASIS TANAMAN KARET (Hevea brasilliensis) DI KECAMATAN TANAH PUTIH KABUPATEN ROKAN HILIR Ardiansyah Ardiansyah; Defri Yoza; Yossi Oktorini
Jurnal Online Mahasiswa (JOM) Bidang Pertanian Vol 4, No 1 (2017): Wisuda Februari Tahun 2017
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The rubber plant is the second commodity after palm plants in the village of Sedinginan and Banjar XII, but there are problems with low productivity because a lot of rubber plant been old and damaged thereby inhibiting the development of community forest based on rubber plant. The sampling method using the simple random sample.The collection of data used were primary and secondary data. The results of the research aspects of socio-cultural and economic impact on farmers in developing community forestbased on rubber plant, assessed from the age of farmers belonging to a productive and has experience in planting and maintenance of rubber plant.The low productivity of rubber plant, makes the net income of farmer is not enough for every day. The farmer factor do not conduct replanting,because some of rubber crop still young and no farmer budget do not conduct replanting. Strategies SWOT Analysis can be taken is to use superior seeds qualified and revive the tradition of rubber plant. In order for the production of rubber plants is better role of the Department of Forestry and required Plantation.                     Keyword:The Development Of Community Forest, Crop Rubber and District of Tanah Putih
IDENTIFIKASI DAERAH JELAJAH BERUK (Macaca nemestrina Linnaeus, 1766) MENGGUNAKAN APLIKASI SISTEM INFORMASI GEOGRAFIS DI KAWASAN HUTAN UNIVERSITAS RIAU Eka Surya Ahmadi; Yossi Oktorini; Defri Yoza
Jurnal Online Mahasiswa (JOM) Bidang Pertanian Vol 3, No 2 (2016): Wisuda Oktober Tahun 2016
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Macaca nemestrina is one including appendix II containing list of endangered species. The research aims to understand home range to know daily behavior and mapping range of Macaca nemestrina in the area of Riau University forest and surrounding areas.  This research using a method of direct observation by way of follow, noticed as well as record every activity performed by groups of Macaca nemestrina. The determination of the regional daily range in overlay using software arcgis 10.1. Daily activity were analysed by counting average time daily activity and percentage number of daily activity fauna. Home range Macaca nemestrina were analysed using kernel density estimation (KDE) located on program Geospatial Modelling Environment (GME) and ArcGis 10.1. Home range outermost Macaca nemestrina were analysed by the method of Minimum Convex Polygon (MCP). The result showed that Macaca nemestrina in the area of Riau University forest having broad areas of 176.553 m². Maps of the home range  Macaca nemestrina having range regions core level very high density area of 7.916 m², high area of 11.344 m², mid 41.468 m², low area of 83.28 m² and level of density is very 32.542 m². The activity of Macaca nemestrina is eat, break, migrates, grooming and social interaction. The highest activity is break activity 36,68%, the lowest activity is grooming 4,10%. The percentage of eating 25,33%, social interaction 29,69% and devolve activity 4,20%. To scatter cruiser regions Macaca nemestrina in forest area of Riau University were on the point coordinates 101°22'44,565'BT–101°23'8,918'BT and 0°28'56,122'LU–0°28' 32,798'LU.Keywords: Macaca nemestrina L.,  Forest Areas, Daily Range, Home Range, Core Areas, Coordinate.
Identifikasi Partisipasi Masyarakat Terhadap Pelestarian Hutan Mangrove di Desa Teluk Pambang Kecamatan Bantan Kabupaten Bengkalis (Studi Kasus Kelompok Belukap) Yuni Elfiza; M. Mardhiansyah '; Yossi Oktorini
Jurnal Online Mahasiswa (JOM) Bidang Pertanian Vol 1, No 1 (2014): Wisuda Februari Tahun 2014
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Mangrove forest in the TelukPambang Village, Sub District of Bantan, Bengkalis District is managed by KelompokPengelola Mangrove (KPM) Belukap. KPM Belukap is an organization which is formed through a Co- Fish project’s program (rural development programs in the field of fisheries ). KPM Belukap has the purpose of managing mangrove forests (mangroves) that utilization is done wisely to ensure the balance of supply by continuing to maintain and protect the mangrove forest areas, improving the welfare of mangrove wood utilization users, monitoring and oversight of utilization of mangrove forests, as a place of discussion about mangrove forests. This study aims to determine the form and level of community participation, in this case KPM Belukap, to determine the forms of participation and a qualitative descriptive analysis was used and to measure the level of participation Likert scale was used. Analysis of Likert scale is able to indicate clearly the level of participation of members KPM Belukap on each form of participation which are planning , implementation , and utilization . The level of participation was obtained from the factors that influence which are knowledge and expertise , occupation , education , and culture ( the belief in a particular culture).  The results showed that the forms of public participation in the preservation of mangrove forests which is managed by KPM Belukap are planning, implementation, and utilization. The level of community’s participation in the conservation of mangrove forests which is managed by KPM Belukap is in the middle participation category with 14 people out of  20 respondents. Keywords: Mangrove Forest, Participation, Conservation, Community
IDENTIFIKASI FAKTOR-FAKTOR PENYEBAB DAN PENCEGAHAN KEBAKARAN HUTAN DAN LAHAN GAMBUT DI KECAMATAN KEMPAS KABUPATEN INDRAGIRI HILIR Tri Wahyudi Muslim; Defri Yoza; Yossi Oktorini
Jurnal Online Mahasiswa (JOM) Bidang Pertanian Vol 4, No 2 (2017): Wisuda Oktober Tahun 2017
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This research aims to identify the causes and ways of prevention of forest fires and peat in Kempas district Indragiri Hilir Regency based on public perception. This research is a descriptive research. Technique of collecting data of this research are observation, direct interview and questionnaireSampling in this research usingpurposive sampling dan quoted sampling methods.Results of the study of the causes of forest fires and peat that is inKempas district Indragiri Hilir regency based on public perception. The intentional factors are: land clearing by communities and companies by way of burning, conversion of agricultural land to plantation land by burning and land conflicts between communities and companies. Factor of human laxare : burning of plantation waste done by society and negligence of human that cause sparks such as throwing cigarette butts carelessly. The technique the prevention of forest fires and land in Kempas district Indragiri Hilir Regency, based on public perception and knowledge society that is: implement socialization by periodic both directly and indirectly, implementcounselling to the community, the rule of law in a fair and firm for the arsonists, implement the cooperation between all sides of the community, Government and corporate training, implement the opening of the land without burning to the community, the establishment of community groups concerned the joint patrols, fire and Implement of land registration and community land use.Keyword : The cause of fire, The prevention of fire, peatland and forest, Kempas district.
STRATEGI PENGEMBANGAN EKOWISATA AIR TERJUN TEMBURUN KECAMATAN SIANTAN TIMUR KABUPATEN KEPULAUAN ANAMBAS PROVINSI KEPULAUAN RIAU Recsy Poetu Antari; Nurul Qomar; Yossi Oktorini
Jurnal Online Mahasiswa (JOM) Bidang Pertanian Vol 5 (2018): Edisi 1 Januari s/d Juni 2018
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Pertanian

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Temburun Waterfall has the potential that can be developed as ecotourism products to support environmental sustainability, welfare and improving the quality of community life. It takes several alternative strategies in developing the Temburun Waterfall ecotourism by utilizing the strengths owned, minimizing the weaknesses and obstacles and opportunities that exist. This research aims to formulate development strategy of Temburun Waterfall ecotourism. The data used in this research are primary data and secondary data. Primary data obtained from the interview and fill questionnaire by the selected respondents taken using purposive sampling method. Data were analyzed using SWOT analysis. The results showed that the development strategy of Temburun Waterfall ecotourism 1). Strengthening institutions in managing and improving tourism objects and attractions, 2). Offering the potential that exists to outside parties / private sector in order to improve ecotourism development concept ecotourism, 3). Conduct training and assistance on tourism marketing and tourism business development and, 4). Improve the awareness of tourists and the quality of human resources as a reliable tourism activist. Keywords: Development strategy, SWOT analysis, Temburun Waterfall ecotourism
KARAKTERISTIK WOOD PELLET DARI LIMBAH KAYU KARET (Hevea brazilliensis Muell. Arg) SEBAGAI ALTERNATIF SUMBER ENERGI TERBARUKAN Ari Adrian; Rudianda Sulaeman; Yossi Oktorini
Jurnal Online Mahasiswa (JOM) Bidang Pertanian Vol 2, No 2 (2015): Wisuda Oktober 2015
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This research to investigate the characteristics of wood pellets from wood rubber waste as  alternative renewable energy sources and determine the best treatment. This research was conducted in experiments with completely randomized design (CRD), which consists of three treatments three replications, with the use of wood rubber waste, tapioca flour and water as well as the tools use are peletmill, calory meter combustion bomb, hammermill, oven, container, stirrer, weigher, measure cups, stopwach, wood pellets stove and camera. It can be concluded that the water content wood pellet 15,06% - 17,26%, wood pellet density 0,408 g/cm3 (408 kg/m3) – 0,628 g/cm3 (628 kg/m3), long burn wood pellets 5,42 minutes/200gr – 7,29 minutes/200gr and a calorific value  4029 Kcal/kg - 4106 Kcal/kg. Treatment to three with tapioca powder rubber wood + 30% + 300 ml water have the appropriate or best treatment approach by SNI, where the water content of 15,06%, density of 0,628 g/cm3 (628 kg/m3), long burning 5,42 minutes/200gr and calorific value of 4106 Kcal/kg. Keywords: waste, rubber wood, wood pellets, energy  
Co-Authors Ade Ilham Ade Ilham Adriman, Adriman Agung Anugrah Agung Anugrah Ana Pratiwi Andrian Sianturi Andrian Sianturi Anggun Tri Nande Ardiansyah Ardiansyah Ari Adrian Arida Susilowati Iswanto Budi Helianto Budijono, Budijono Darli, Viny Volcherina Deddy Samuel Defri Yoza Defrizal Defrizal Defry Yoza Deswina Deswina Deswina, Deswina Dicky Zulkarnaen Dolly Kuswara Harahap Dwi Basliana Okta Eka Surya Ahmadi Eko Prianto, Eko Esa Ervina Evi Sribudiani Ewi Irfani Fanny Kusuma Akmal Farib Hamdani Fariz Hidayat Fiki Rangga Abdi Freddy, Manompang Gilda Pudikasari Gustiara Ningsih harahap, ari azhari Haryati Haryati Haryati Haryati Haryati Hasanah, Hafiz Idwar, Idwar Ika Purnama Ismenni Banjar Nahor, Ismenni Banjar Kristian Nurdianto, Kristian Manullang, Kristian H Mardianti, Gusdina Masruri, Niskan Walid Metananda, Arya Arismaya Metri, Erwis Mini Silviana Miswadi Miswadi Miswadi Miswadi Morina Widya Afifa Morina Widya Afifa Muhammad Fauzi Muhammad Mardhiansyah Mukhamadun Mukhamadun . Munzil Azim Nafiah, M. Ali Ningsih, Gustiara Nur Fitriana Nur Fitriana Nur Suhada, Nur Nurul Qomar Nurul Qomar Pebriandi, Pebriandi Rahmatdillah Rahmatdillah Recsy Poetu Antari Rino Eka Pratama Riyan Sumitran Rofi Julianda Romie Jhonnerie Rostika, Lina Rudianda Sulaeman Rudianda Sulaeman Sabaruddin Sabaruddin Sahab, Ahmad Shirly Indriana Putri Silitonga, Ester Marisi Silviana, Mini Simanjuntak, Chindy A.S Somadona, Sonia Sugi Ari Wardana Supriyan Syahrizal Syahrizal, Supriyan Syukri, Zulhusni Tengku Muhammad Ulul Azmi Tri Wahyudi Muslim Tuti Arlita Ulul Azmi, Tengku Muhammad Vini Volcherina Darlis Viny Volcherina Darli Wahyu Bintoro Wahyu Bintoro, Wahyu Wan Muhammad Yunus, Wan Muhammad Widia Safitri Wishnu Sukmantoro Yuni Elfiza