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All Journal Jurnal Silvikultur Tropika (JST) Jurnal Natur Indonesia Jurnal Online Mahasiswa (JOM) Bidang Pertanian Jurnal Biologi Universitas Andalas Jurnal Riau Biologia Jurnal Biologi Tropis Wahana Forestra: Jurnal Kehutanan JMM (Jurnal Masyarakat Mandiri) Ensiklopedia of Journal Jurnal Pembelajaran dan Biologi Nukleus Jurnal Hutan Tropika Unri Conference Series: Community Engagement ECOTONE Jurnal Zona Dinamika Lingkungan Indonesia Sagu CANANG: Jurnal Pengabdian Masyarakat Jurnal Ilmu-Ilmu Kehutanan Jurnal Pengabdian Masyarakat Bangsa Jurnal Senpling Multidisiplin Indonesia Jurnal Natur Indonesia

Defri Yoza

Departement Of Forestry, Faculty Of Agriculture, Riau University

Author-ID : 5352921

Religion Agriculture, Biological Sciences & Forestry Arts Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry 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 Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Mathematics Medicine & Pharmacology Nursing Physics Public Health Social Sciences Other

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Identifikasi Potensi Ekowisata Hutan Kota Pulau Bungin Kabupaten Kuantan Singingi Budi Helianto; Defri Yoza; Yossi Oktorini Oktorini
Jurnal Online Mahasiswa (JOM) Bidang Pertanian Vol 3, No 2 (2016): Wisuda Oktober Tahun 2016
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Pertanian

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At this time the building of forest city pulau bungin still in step as the trees habitats in the middle of city that’s why need the data about potency ecotourism of forest city pulau bungin located at kota taluk kuantan, kuantan singingi regency. This research doing at forest city pulau bungin, kuantan singingi regency, riau province, helded at April-mei 2016. From the result of this reseach can conclude that the potency ecotourism of forest city located in forest city pulau bungin is pendopo, traditional track, jogging track, bridge, fruits forest, chair. The potency ecotourism of that very interesting in forest city pulau bungin is Fruits tree with precentage 48% and interesting category. Key words: Forest city Pulau Bungin, Potency Ecotourism

RETENSI DAN PENETRASI EKSTRAK BIJI PINANG (Areca catechu L.) SEBAGAI BAHAN PENGAWET NABATI KAYU MAHANG (Macaranga gigantea Mull. Arg.) Hanifah Ikhsani; Rudianda Sulaeman; Defri Yoza
Jurnal Online Mahasiswa (JOM) Bidang Pertanian Vol 2, No 1 (2015): Wisuda February 2015
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Pertanian

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This research aimed to determine the concentration of preservative use of betel nut Areca catechu L. extract is best based preserpative retention and penetration of the highest in the stem (tip, middle and butt) mahang wood. The research used method completely randomized design (CRD) arranged factorially with 2 (two) factors. The first factor is the concentration of the curing agent (B) consist of three 3 (three) level, namely B1 (20% concentration), B2 (25% concentration) and B3 (30% concentration). The second factor is the wooden rod (C) consist of 3 (three) level, namely C1 (butt), C2 (middle of timber) and C3 (wood tip). Concentration of plant extract preservative us Areca catechu L. is best based preservative highest retention was 30% at tip (18,33 kg/m3), middle (16,03 kg/m3) and butt (15,55 kg/m3), whereas the concentration of plant extract preservative us betel nut Areca catechu L. is best based preservative highest penetration was 30% at tip (63,76%), middle (53,93%) and butt (50,06%) mahang wood. Keywords: Macaranga gigantea, Areca catechu, wood preservative.

Keberadaan Harimau Sumatera (Panthera Tigris Sumatrae) dan Satwa Mangsanya di Berbagai Tipe Habitat Pada Taman Nasional Tesso Nilo (The Existence of Sumatran tiger (Panthera tigrissumatrae) andanimal’s enemy in various types of Habitat at Tesso Nilo Natio Riyan Sumitran; Defri Yoza; Yossi Oktorini
Jurnal Online Mahasiswa (JOM) Bidang Pertanian Vol 1, No 1 (2014): Wisuda Februari Tahun 2014
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Pertanian

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Sumatran Tiger is the one and only tiger’s species which is still survive by Indonesia after Bali Harimau and Java Harimau which is have become extinct already.The conversion of Forest become other landsuch asHTI(Industrial Plantation Forest) andpalm oilplantationsattend effect ofconflictbetweenhumansandtigers. The dataof this studyis expected tobe areference forconflictmitigation. This observation used by using transectmethod in 5 m width. The observation observe toward the sign ofthe existence oftigersandtheir animalspeciesin form oftrail, dirt, scratches, the rest of theanimal. Every existence of the tiger there will be a vegetation analysis by making plot. The Result found that there is existence of tiger at 3 transect and 3 segment of secondary forest, 3 transect and 6 segment at HTI. Meanwhile, there is no founding of tiger existence at palm oil. The effect transforming of conversion becoming palm oil is there is no existence of the tiger itself, it because of the high of human’s activity. Key Words : Sumatera Tiger, animal enemy, sign of existence, the effect of conversion.

HUBUNGAN JUMLAH CURAHAN AIR DARI SISTEM IRIGASI BOOM DENGAN MUNCULNYA GEJALA AWAL PENYAKIT HAWAR DAUN BAKTERI DI PEMBIBITAN TANAMAN AKASIA (Acacia crassicarpa Cunn Ex Benth) Uci Oktavia; Yetti Elfina; Defri Yoza
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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This study aims to determine the relationship of the amount of water flow from the boom irrigation system with an attack of bacterial leaf blight in seedlings A. crassicarpa. This research has been conducted in Kerinci Central Nursery (KCN) Plant Nursery Acacia PT Riau Andalan Pulp and Paper (RAPP) in the District of Pangkalan Kerinci, Pelalawan Riau from September to November 2014. The study was conducted experimentally using correlation method to determine the relationship of the amount of water flow irrigation systems boom (x) with an attack of bacterial leaf blight (y). The research was done by measuring the amount of water flow from irrigation boom during watering. Data were statistically analyzed by simple linear regression analysis. The results showed that the relationship the amount of water flow from the irrigation system is positively correlated boom of 36.8% (increases linearly and have not yet reached the optimum point) to the emergence of the first symptoms of bacterial leaf Keywords: A. crassicarpa, the amount of irrigation water flow and bacterial leaf blight boom

IDENTIFIKASI POTENSI EKOWISATA SEBAGAI PENUNJANG KONSERVASI HUTAN MANGROVE DI DESA TELUK PAMBANG KECAMATAN BANTAN KABUPATEN BENGKALIS Fanda Asnita Yusefa Ambarita; Defri Yoza; Rudianda Sulaeman
Jurnal Online Mahasiswa (JOM) Bidang Pertanian Vol 2, No 1 (2015): Wisuda February 2015
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Pertanian

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The mangrove forest is plants that live in the mouth of the river and were able to survive in the tide. The area has a mangrove ecosystem in Bengkalis is Teluk Pambang Village and need to be developed into the ecotourism area. Ecotourism development goal is to protect the existing potentials in the mangrove forests and became one of the alternative sources in raising funds for conservation activities. This research purpose to identify the ecotourism potential of mangrove forest in Teluk Pambang Village, Bantan District Bengkalis Regency, to knowing the efforts and forms of conservation for the development of ecotourism and to knowing the correlation of ecotourism potential as a supporting mangrove forest conservation. The method that used in analyzing the potential of ecotourism is based on the analysis of mangrove vegetation that expressed in the formula English et al. (1997) to obtain density and the importance of community structure of mangrove conservation, efforts and forms was processed using a Likert Scale and the relation of potential ecotourism as a supporting mangrove forest data was processed by descriptive. The results of this research indicate that the ecotourism potential of mangrove forest in the Teluk Pambang Village, consists of very density mangrove forest. Station I had a density of 2,967 ind/ha, station II has a density of 5,778 ind/ha and Station III has a density of 4,688 ind/ha, vegetation and wildlife are varieties and landscape of ecotourism still nature. Efforts and forms of conservation were managed by the Manage Group of Mangrove (KPM) Belukap, habits and knowledges of local communities (local wisdom) in Teluk Pambang Village and participation of respondents to the conservation efforts. The correlation of ecotourism potential to support conservation of mangrove forests are a visitor, education and research. Keywords: Potential, Mangrove Ecosystem, Ecotourism, Conservation

KEANEKARAGAMAN JENIS MAMALIA DI ARBORETUM UNIVERSITAS RIAU KOTA PEKANBARU PROVINSI RIAU Dwi Seprina; Defri Yoza; Evi Sribudiani
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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Arboretum of Riau Universityis a habitat whom build a one connectionpotential habitat for wildlife and more organism. As a supporting tool that provides useful information for various purposes, booth in terms of education, social, economicand ecology. It is necessary to support the complete data by conducting research on the animals in the Arboretum of Riau University, especially mammals, to find out the large index of diversity and richness of mammals species contained in Arboretum of Riau University. This Research held on November 2016 until January 2017. Method used for this research is a line transectsmethod and trap.On research location obtained result isthere 9 of mammals from 6 family founded with 63 individual that founded. The index of species diversity in both dry line (1,93) and wet line (1,73) was moderate. Richness index varieties dry line (1,97) wet line(1,80) is low.Most of mammals on Arboretum of Riau University are animals living on forest floor (teresterial), small flying mammals are met for while research only bats and kind of living animals on canopy area crown and the middle of the canopy crown (arboreal). Keywords: Mammals, Diversity, Arboretum

Perkecambahan Biji Pinang (Areca catechu L.) pada Beberapa Waktu Perendaman Air Kelapa Muda Defri Yoza; Rosmimi '; Bustami '
Jurnal Sagu Vol 7, No 2 (2008)
Publisher : Universitas Riau

This research aimed to investigate the best soaking time for areca seed in young coconut water to improve its germination. This research was carried out in Jalan Limbungan, Limbungan village Rumbai district, Pekanbaru city. This research started from early March to end of May 2005. The method esed in this research was non factorial of completely randomized design with 3 replications. Parameters in this research were the time germination, germination ability, speed of germination, plumulae length, root length, and dry weight of seed. The seed soaking treatments significantly affected all germination parameters except the root length and the best treatment for araca seed is A4 (24 hours of soaking).

Sosisalisasi Rehabilitasi Hutan Bakau Dalam Penyelamatan Lingkungan Pesisir Desa Buruk Bakul Kecamatan Bukit Batu, Bengkalis Yusni Ikhwan Siregar; Defri Yoza; Efriyeldi Efriyeldi
CANANG: Jurnal Pengabdian Masyarakat Vol 1, No 2 (2021)
Publisher : PELANTAR PRESS

Degaradation and destruction rate of the coastal ecosystem, especially mangrove ecosystem, increase in Bengkalis Regency due to over exploitation and conversion. Therefore attempts to overcome the problem become important. The objective of the study was to provide and promote basic knowledge on the importance of mangrove ecosystem to the environment, especially to the village community of Buruk Bakul. Further, the extension also aimed at providing physical, ecological and economical use and benefit that people obtain from the mangrove ecosystem. The participants of total 30 persons, with background of farmer, fishermen, local leader, young leader, and of non-government organization “Sekat Bakau” of the Buruk Bakul were trained. Pre-survey were done to find out the main issue on coastal environmental threats in the village area. The extension were carried out through class presentation, interactive discussion and demonstration of mangrove plantation in the field. The effectiveness of the extension were evaluated to the participants through items in questioner which evaluate the change in knowledge and understanding on the ecological, economical and physical function of mangrove ecosystem. Apparently, the level of knowledge were categorize into very good (60%),good (30%) and fair (10%). Based on that, the extension were categorized success.. The impact on the implementation in the field were that of knowledge dissemination to young group in technical nursery and planting of mangrove trees.

Peningkatan keterampilan masyarakat Desa Rumbio Kabupaten Kampar melalui pengolahan Jahe Merah Evi Sribudiani; Sonia Somadona; Pebriandi Pebriandi; Defri Yoza; Viny Volcherina Darlis
Unri Conference Series: Community Engagement Vol 2 (2020): Seminar Nasional Pemberdayaan Masyarakat
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/unricsce.2.454-458

The people of Rumbio Village are people with an average profession as farmers. The people of Rumbio Village have an economic level at the middle to lower level and need special attention from the government. One way to improve the economic level of the Rumbio village community is by forming their skills in post-harvest processing of agricultural products. This skill is needed for processing agricultural products in this case red ginger. based on this, a community service activity entitled "Improving Community Skills in Rumbio Village, Kampar Regency through Red Ginger Processing" was carried out. The method of application is carried out in the form of socialization and direct practice, namely processing red ginger into instant ginger, this activity is carried out in the meeting hall of the Rumbio Village office with the target community, namely the PKK women of Rumbio village. activity, where the participants were very enthusiastic and contributed to the processing of instant ginger, then the results were also obtained that this instant red ginger can generate profits twice as much as the initial capital spent. Processing of instant ginger is a very promising business opportunity, so it is important to improve the skills of the target community in processing red ginger into instant ginger, the increase is seen from the achievement of the activity indicators, namely technical and non-technical knowledge of making instant red ginger.

Assessment of Physicochemical and Biological Properties and Threats on The Sorik Lake of Inderagiri River, Sumatera Indonesia Yusni Ikhwan Siregar; Defri Yoza; Rika Kurniawan
ECOTONE Vol 2, No 1 (2021)
Publisher : Riau University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/ecotone.2.1.p.9-17

Intensive agricultural practices in the upper land of the Indragiri river bring about problem to oxbow-lakes spreading out along in the middle and downstream of the river. Danau Sungai Sorik (DSL) typically included to oxbow-lake, situated in the middle part of Indragiri River, one of four big river in Riau Province, Sumatera. Since the catchment area of the lake were totally urban, accordingly the dynamic equilibrium of lake ecosystem were shifted. The lakes were reportedly degraded in terms of hydrological regime, high sedimentation, fully vegetated and low biological diversity. The local government has repeatedly normalized the depth of the lake in related to development of water attraction, restocking of invading species of fish, cage culture and rice field along the edge of the lake. The present papers aimed at characterizing and assessment of physicochemical and biological properties of the water. Further, potential threats on the sustainability of the lake were assessed. Based on chemical properties of water including BOD5, phosphate and Nitrate range were of (3.26-7.43), (0.11-0.13) and (0.229-0.433) m/L, respectively, were categorized into un-equilibrium or slightly polluted. The water transparency appeared low (25-29) cm, the pH of 6.0-6.5) and temperature of 31-32 0C. Apparently, the diversity index (H), dominancy index and similarity index of phytoplankton ranged from (0.9110-1.2211), (0.3201-0.6136) and (0.3939-0.6290, respectively. It suggested slightly dominated by certain species

Co-Authors ', Bustami ', Rosmimi , MISNA Ade Ilham Ade Ilham Adelia Hayati Ananta Adelia Hayati Ananta Adi Saputra Affhart Chata Agus Hikmat Agus Sutikno Agus Sutikno Ahmad Baiquni Ahmad Baiquni Rangkuti Akhmad Rafdi Azhimi Al-Reza, Dimaz Danang Aldi Ardiansyah Putra Alpian Munandar Alpino Alpino Alpino Amela Nainggolan, Dewi Sri Ananda, Taufik Anastasia hutasoit Angraini, Riris Ano Riyadi Ano Riyadi Aprian, Aprian Ardiansyah Ardiansyah Arie Febriyan Rianto Aripan Yunas Arta Pansiska T Arya Arismaya Metananda Arya Arismaya Metananda Arya Arismaya Metananda Aryodamar Muhammad Jati Asprizatul Azlan Asri Gumilar Asri Gumilar Astriana Pujacita Suhandi Atika Azharo Atmansyah, Atmansyah Bayu Dewanto Bayu Suhendra Br Brahmana1, DwiDamiaty BrahmiPutri Bucika Parta Gezali Budi Azwar Budi Helianto Budiani, Evi Sri Budiani, Evi Sri Bustami ' Darli, Viny Volcherina Darwan Suganda Darwan Suganda Darwis Gidion Deddy Samuel Defrizal Defrizal Dewi Sri Amela Nainggolan Dewi Sriyanti Dian Marliana Dimas Nugraha Pamungkas Dina Rina Rosinta Dolly Kuswara Harahap Dwi Seprina DwiDamiaty BrahmiPutri Br Brahmana1 Efendi, Meizar Efriyeldi, Efriyeldi Eka Surya Ahmadi Elfana, Risa Elfiandri Elfiandri Eni Rita Rosady Erpino Erpino Erpino Ervizal AM Zuhud Evi Sri Budiani Evi Sribudiani Fakhdian Setiawan Fanda Asnita Yusefa Ambarita Fanny Kusuma Akmal Farib Hamdani Febriyanti, Fani Fernando, Git Fifi Puspita Gaol, Sori B M Lumban Gilda Pudikasari Gusmita Sari Gusnaini, Nurmutia Halawa, Ernawati Kristina Hamidi, M. Rasyid Hamka Sari Budiman Hanifah Ikhsani Hardi Yuda Haris Gunawan Harnuda, Muhammad Rafi Hasanah, Hafiz Husni Thamrin Ichwan, Fadli Ika Gussuwana Ika Gussuwana, Ika Ika Lestari, Ika Ika Purnama Ilen Purnama Sari Ilyas, Engki Indah Sulistyo Ningrum, Indah Sulistyo Indrayati ' Irham, Wirdayati Ismenni Banjar Nahor, Ismenni Banjar Ita Yulia Jheni Astuti, Jheni Kausar ' Kesi Elisabeth Silvania Siregar Kevin Natama Pardede Khairul Anwar KHAIRUL ANWAR khairul anwar Khalid Afif Khikmanisa, Tiwi Kukuh Kurniawan Lamsari Efrida Gulo, Lamsari Efrida Lestari, Antisa Tria Lisman, Aprizal Luh Putu Ratna Sundari M. Mardhiansya ' Mandala Yohannes Saputra Mandala Yohannes Saputra Manullang, Kristian H Masitah ' Masruri, Niskan Masruri, Niskan Walid Meizar Efendi Meriza Melyana, Meriza Merry Syafrida Metananda, Arya Arismaya Mhd. saputra pane Miranti Putri R.G Morista Latersia Tarigan Morista Latersia Tarigan Muhamad Fadly Muhammad Khaerul Anwar Muhammad Mardhiansyah Muhammad Rivai Muhammad Rudy Hidayat Muhammad Rudy Hidayat Muhammad Vikko Alshar Mukhamadun, Mukhamadun Mukhtar, Ade Mulya Rolina Mulya Rolina Munzil Azim Muthia Zilyani Putri Nasib Tuah Nino Vembrianto Niskan Walid Masruri Nofri Sandria Nur Fitriana Nur Fitriana Nur Suhada, Nur Nurhaliza Nurlistiani Fitrianingsih Nursaila ' Nursal Nursal Nurul Qomar Nurul Qomar Nuryasin ' Ofrinaldi ' Pangestu, Wibowo Pardede, Kevin Natama Pebriandi, Pebriandi Perkasa, Wahyu Andi Pretti Sepsi Nola Putra, Ade Eka Putra, Ezza Islami Putriani, Chirin Ni’mah Rahlem, Dedek Rahmad Dani Rahmad Fadillah Raja Febrianto Rangkuti, Ahmad Baiquni Rangkuti, Rangkuti Rendra Mai Rizal Ridho Affan Mustayyib Ridwan Manda Putra Ridwan Manda Putra Rifda Ningsih Rika Kurniawan Rinta Hermiza Ningsih Riri Syafni Marjuli Riyan Sumitran Rizky Budi Susanto RONNY, ABDUL Rosita Marito Hasugian Rosmimi ' Rostika, Lina Rudianda Sulaeman Rudianda Sulaeman Rudianda Sulaeman Rudianda Sulaeman Sabaruddin Sabaruddin Sakinah Lubis Sami Rafles Handika Seprina, Dwi Septian Hardi Yanto Shobby, Afiyah Sholihin, Khoirul Sinaga, Ave Nova Sofan Sofiyanto Somadona, Sonia Sori B M Lumban Gaol Sri Catur Setyawatiningsih Sriyanti, Dewi Stevi Istiqfar Sugi Ari Wardana Suhardianto, Suhardianto Susi Marlina Sutami Sutami Sutami Syafathisca Syafathisca SYAPUTRA, ARI Syukri, Zulhusni Tasman Adi Teddy Noor Hidayat Teguh Imanto Tengku Muhammad Ulul Azmi Tiara Septa Yunanda Tika Zulkarnain Tri Wahyudi Muslim Tuti Arlita Uci Oktavia Ulul Azmi, Tengku Muhammad Umum Juwanto Umum Juwanto Valvi Anita Sinaga Vini Volcherina Darlis Viny Volcerina Darlis Viny Volcherina Volcerina Darlis, Viny Volcherina, Viny Wan Muhammad Yunus, Wan Muhammad Wardati Wardati . Wendy Fitrah Widia Safitri Wienda Lestari Br. Gurusinga Wirdayati Irham Wishnu Sukmantoro Yelfi Dwi Ningsih Yetti Elfina Yoga Yudhatama Yossi Oktorini Yusni Ikhwan Siregar

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