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All Journal Jurnal Bios Logos Jurnal Natur Indonesia Jurnal Online Mahasiswa (JOM) Bidang Pertanian JURNAL BUDIDAYA PERTANIAN Unri Conference Series: Community Engagement Journal of Rural and Urban Community Empowerment Sagu Open Community Service Journal Jurnal Medika Mengabdi

Yetti Elfina

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Author-ID : 258904

Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Decision Sciences, Operations Research & Management Earth & Planetary Sciences Education Energy Environmental Science Health Professions Immunology & microbiology Industrial & Manufacturing Engineering Medicine & Pharmacology Public Health Social Sciences Other

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UJI BEBERAPA KONSENTRASI EKSTRAK TEPUNG DAUN SIRIH HUTAN (Piper aduncum L.) TERHADAP JAMUR Ganoderma boninense Pat. SECARA IN VITRO Mahera, Ravika; Elfina, Yetti; Rustam, Rusli
Jurnal Online Mahasiswa (JOM) Bidang Pertanian Vol 2, No 2 (2015): Wisuda Oktober 2015
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Pertanian

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This study aims to determine the ability of the wild betel leaf extract in inhibiting the grow thof fungi G.boninense.This reserach was conducted experimentally by using completely randomized design, which consists of 5 treatments and 4 replications, in each unit there were two petris dishes in order to obtain 40 units of treatment. The treatment being tested is the use of multiple concentrations of extracts of betel leaf meal ie 0, 25, 50, 75 and 100 g / l. Data were analyzed statistically using analysis of variance and furthertested withDuncan's Multiple Test New Multiple Range Test (DNMRT) at 5%. The results showed that the concentration of powder extract of wild betel significantly affected G. boninense and gave the different affected of fungi G. boninense. Powder extract of wild betel leaf at concentration 50 g/l water gave a better ability to control the fungus G. boninense namely 41,83 %. Â Keyword : Stem root, G. boninense, P. aduncum, the concentration of leaf powder extract

UJI ANTAGONIS JAMUR TRICHODERMA, VERTICILLIUM DAN TORULOMYCES TERHADAP Ganoderma boninense Pat. SECARA IN VITRO Zafitra, Zafitra; Elfina, Yetti; Ali, Muhammad
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 aim of this research is to antagonistic assessment fungal Trichoderma, Verticillium and Torulomyces to Ganoderma boninense Pat. in vitro. This research has been conducted at Plant Pathology, Agriculture Faculty, University of Riau from March until May 2016. The research consisted of 2 steps as follow : 1) Antagonistic assessment of Trichoderma, Verticillium and Torulomyces 2) measurement the diameter and growth antagonism fungus. Results of the research showed that Trichoderma had a better inhibition growth to G. boninense 81,21%, diameter of growth was 88,00 mm and colony growth 29,33 mm/day. The Endophytic Verticillium had inhibition growth 76,08%, diameter of growth was 85,92 mm and colony growth 28,64 mm/day. The Torulomyces had inhibition growth 75,90%, diameter of growth was 84,67 and colony growth 28,22 mm/day. Keywords : Antagonistic Assessment, Ganoderma boninense, In vitro

Penggunaan Bahan Organik dan Kombinasinya dalam Formulasi Biofungisida Berbahan Aktif Jamur Trichoderma pseudokoningii Rifai. untuk Menghambat Jamur Ganoderma boninense Pat. secara in vitro Elfina, Yetti; Ali, Muhammad; Saputra, Rachmad
Jurnal Natur Indonesia Vol 16, No 2 (2016)
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat Universitas Riau

Trichoderma pseudokoningii has been applied as a biocontrol agent against fungal plant pathogen, such as Ganoderma boninense, the cause of stem rot disease on palm oil plants. To be more effectively applicable in the field, some experiments have been employed to formulate T. pseudokoningii in a biofungicide formulation amended with organic matter as its main nutrient resource, zealot as a carrier agent and cocoyam powder as a mixture agent. A research has been conducted to study the effect of various organic matters and their combinations in a biofungicide formulation of T. pseudokoningii on growth inhibition to G. boninense in-vitro and to obtain the best organic matters and their combinations in enhancing the growth of T. pseudokoningii and yet inhibiting G. boninense. The research has been conducted in the Laboratory of Plant Pathology, Agriculture Faculty, University of Riau from May to August 2012, using a completely randomized design consisting of 15 treatments (bagasse, rice husk, shrimp shell, dregs, and their combinations) and 3 replications. The data were statistically analyzed using analysis of variance, followed by Duncan’s New Multiple Range Test (DNMRT). The results indicated that organic matters and their combinations in the biofungicide formulation significantly affected the antagonistic capacity of T. pseudokoningii in inhibiting the growth of G. boninense in vitro. Rice husk, bagases, bagasse+rice husks, and bagasse+dregs were the best organic matters in enhancing the growth of T. pseudokoningii and its capacity to inhibit G. boninense in-vitro. It can also be concluded that shrimp shell, bagasse+shrimp shell, rice husk+shrimp shell, shrimp shell+dregs and rice husk+shrimp shell+dregs totally inhibited the growth of T. pseudokoningii in the biofungicide formulation.

Uji Biofungisida Pelet Berbahan Dasar Pelepah Kelapa Sawit Yang Mengandung Isolat Trichoderma spp. Terhadap Jamur Ganoderma boninense Pat. Secara In Vitro Roy Ibrahim; Yetti Elfina; Rahmi Dewi
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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Basal stem rot (BSR) disease caused by Ganoderma spp.. The most of solution is using chemical pesticides and it was hazardous to environment and human health. The other way is using biological agent Trichoderma spp. in the form of biofungicide pellet. The aims of this research was to know the best influence of biofungicide pellet in controlling pathogen G. boninense of oil palm plant by in vitro. This research was done at Plant Pathology Laboratory of Agriculture Faculty and Nanotechnology Material Laboratory of Mathematics and Natural Science Faculty, University of Riau from May until July 2013. Experimental study was conducted using completly randomized design with 5 treatment and 4 replications. The treatment were application of biofungicide pellet is T0= Without isolate Trichoderma spp., T1= biofungicide pellet T. pseudokoningii, T2= biofungicide pellet T. koningii, T3= biofungicide pellet T. harzianum, T4= biofungicide pellet T. viride). Data obtained from the observations were statistically analyzed using analysis of variance, followed by Duncan's New Multiple Range Test (DNMRT). The result showed that biofungicide pellet containing isolate of Trichoderma spp. showing the different of patogen G. boninense by in vitro. Biofungicide pellet of T. harzianum has the higher result arround 58,84% and spores arround 16,47 x 106 than T. pseudokoningii, T. koningii and T. viride. Keyword: Palm Midrib, Isolat Trichoderma Spp, Mushrooms

UJI BEBERAPA DOSIS BIOFUNGISIDA BERBAHAN AKTIF Trichoderma koningii Rifai TERHADAP PENYAKIT VIRUS KOMPLEKS, PERTUMBUHAN DAN PRODUKSI CABAI MERAH (Capsicum annuum L.) Sartika Sartika; Muhammad Ali; Yetti Elfina
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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One of the disease that can significatly decrease the red chili productivity is virus complex. The disease can be controlled by the utilization of microorganism such as Trichoderma koningii Rifai formulated in a biofungicide. The dose of biofungicide given to the plants can determine the effect of virus complex disease. The research aims to obtain the best dose of biofungicide of T. koningii to increase the resistance of red chili to virus komplex and to study its effect on the growth and yield of the red chili. This research has been conducted at Plant Pathology Laboratory and Agribusiness Incubator Green House, Agriculture Faculty of Riau University from October 2015 to February 2016. The research was carried out experimentally using a completely randomized design consisted of 5 doses (0, 25, 50, 75 dan 100 g/polybag) and 3 replication. Data obtained were statistically analyzed using analysis of variance and continued with Duncan’s New Multiple Range Test (DNMRT) at 5% level. The result showed that the virus complex infection in red chili which were applied with some doses of biofungicide of T. koningii had different effect on the first time of symptom appeared, disease intensity, plant growth and yield. Biofungicide of T. koningii at 100 g/polybag can increase the resistance of red chili and the growth and production. Keywords: Biofungicide, Trichoderma koningii, virus complex, red chili

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 GEJALA DAN PENYEBAB PENYAKIT BUAH JERUK IMPOR DIPENYIMPANAN DI KOTA PEKANBARU Yetti Elfina; Muhammad Ali; Siti Maysaroh
Jurnal Sagu Vol 11, No 1 (2012)
Publisher : Universitas Riau

Citrus production in Riau have been in inadequate to meet the people's consumptionin terms ofboth quality and quantity. This presents an influx of imported fruits, including oranges in Riau. The entryof imported fruit can carry pathogens that can degrade the quality of these fruits. Research was conductedin the Laboratory of Plant Diseases of Agricultural Faculty of Riau University of from June to August2011. Purpose of this study was to identify the symptoms and causes disease in citrus fruit imports duringpost harvest in Pekanbaru. Research conducted using survey method with the determination of marketsamples are purposive sampling. Of the mind that a disease affecting citrus fruit imports in the cityPekanbaru in the supermarket is Anthracnose disease caused by Colletotrichum sp, Aspergillus rot causedby Aspergillus sp, Fusarium rot caused by Fusarium sp and Alternaria fruit rot caused by Alternaria sp.In traditional markets is a disease and rot Anthracnose disease Aspergillus.

UJI BEBERAPA KONSENTRASI EKSTRAK TEPUNG DAUN SERAI WANGI (Cymbopogon nardus L.) UNTUK MENGENDALIKAN PENYAKIT ANTRAKNOSA PADA BUAH CABAI MERAH PASCA PANEN YETTI ELFINA; MUHAMMAD ALI; MORINA CHRONIKA TAMPUBOLON
Jurnal Sagu Vol 15, No 1 (2016)
Publisher : Universitas Riau

The research aims to observe and obtain a better concentration of powder extract citronella grass leaf tocontrol anthracnose disease on red chili fruits. The research has been conducted experimentally using acompletely randomized design, consisted of 6 treatments and 4 replications thus obtained 24 trial units. Theresearch consisted of two phases: in vitro inhibition of C. capsici and in vivo application of powder extractcitronella grass leaf on red chili fruits. The concentration of powder extract citronella grass leaf used are:S0= 0 g/l, S1= 50 g/l, S2= 100 g/l, S3= 150 g/l, S4= 200 g/l dan S5= 250 g/l of water. The data werestatistically analyzed using analysis of variance and the means were tested with Duncan ‘s New MultipleRange Test (DNMRT) at level of 5%. The results of the research showed that the concentration of powderextract citronella grass leaf at 200 g/l of water tended to show a better ability to inhibit the growth of C.capsici at in vitro phase with growth inhibition up to 22,26%.Key words: Red chili, C. capsici and Cymbopogon nardus L.

Serapan NPK Kelapa Sawit dengan Aplikasi Dregs dan Trichoderma sp pada Pembibitan Awal di Medium Gambut Wardati '; Yetti Elfina
Jurnal Sagu Vol 7, No 01 (2008)
Publisher : Universitas Riau

The objective of this research was to study the influence of interaction between primary factors of trichoderma sp and dregs to N, P, K absorption in oil palm seedling at peat medium in pre nursery. It is conducted from September 2006 to februari 2007. The parameters of this research were N, P, K content of soil peat; N, P, K absorption of plant, shoot dry weight and root dry weight. The sesult indicated that the treatment of trichoderma sp and dregs increased N, P, K availability in peat medium and N, P, K absorption of palm seedling.

UJI KONSENTRASI BIOFUNGISIDA TEPUNG Trichoderma harzianum Rifai TERHADAP JAMUR Phytophthora palmivora Butl. PENYEBAB PENYAKIT BUSUK BUAH KAKAO PASCA PANEN YETTI ELFINA; MUHAMMAD ALI; DELIMA SABATINY
Jurnal Sagu Vol 16, No 1 (2017)
Publisher : Universitas Riau

losses on cocoa is black pod disease (BPD) caused by Phytophthora palmivora Butl. Alternatif control of thedisease is using biocontrol agent such as Trichoderma harzianum Rifai formulated in a powder biofungicidewhich has to be applied in a right concentration. The research aims to observe the effect of biofungicidepowder of T. harzianum in some concentrations and obtain the best consentration to control P. palmivoracauses cocoa black pod disease. This research has been conducted at Plant Pathology Laboratory, AgricultureFaculty of Riau University from August to October 2015. The research was carried out experimentally usinga completely randomized design consisted of 7 treatments (0, 100, 200, 300, 400, 500 and 600 g/l) and 4replications. The research consisted of two phases: in vitro inhibition test to P. palmivora and in vivoapplication test of T. harzianum powder biofungicide. Data obtained were statistically analyzed usinganalysis of variance and continued with Duncan’s New Multiple Range Test (DNMRT) at 5% level. Theresults showed that the concentration of T. harzianum powder biofungicide at 500 g/l had a better ability toinhibit the growth of P. palmivora at in vitro test with an inhibition up to 45,00% and relatively able tocontrol P. palmivora causes cocoa black pod disease at in vivo test with disease intensity 31,25%.

Co-Authors ', Wardati ., Irfandri Aras Mulyadi Benny Heltonika Defri Yoza DELIMA SABATINY Desi Rahmadani Siagian Efriyeldi, Efriyeldi Fajriani Ananda Fifi Puspita Fuadi, Indra Hafiz Fauzana Harahap, Rizki Bintang Ramadhan Hendra Taufik Herhadi Solihin Hutomo, Ragil Tribhakti Idwar Imran , Imran Imran Imran Irfandri Iswandi Lee, Seung Hun MORINA CHRONIKA TAMPUBOLON Mu'arif, Maulana Muhammad Ali MUHAMMAD ALI Nelvia Nelvia Nur Asiah Nurafni, Melia Rahmi Dewi Ravika Mahera, Ravika Rizqi, Alfin Roy Ibrahim Rusli Rustam Rusli Rustam SABATINY, DELIMA Sabirunah, Aisyah Saputra, Rachmad Sartika Sartika Siti Aminah Siti Maysaroh Siti Maysaroh TAMPUBOLON, MORINA CHRONIKA Uci Oktavia Wardati ' Wijayanto, Dimas Yusni Ikhwan Siregar Zafitra, Zafitra

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