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All Journal Jurnal Natur Indonesia Jurnal Online Mahasiswa (JOM) Bidang Pertanian JURNAL BUDIDAYA PERTANIAN Agro Bali: Agricultural Journal 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 Industrial & Manufacturing Engineering Public Health Social Sciences Other

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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%.

IDENTIFIKASI PENYAKIT NENAS (ANANAS COMOSUS L.) DAN TINGKAT SERANGANNYA DI DESA RIMBO PANJANG KECAMATAN TAMBANG KABUPATEN KAMPAR PROVINSI RIAU Fifi Puspita; Yetti Elfina; Siti Aminah
Jurnal Sagu Vol 3, No 01 (2004)
Publisher : Universitas Riau

Pineapple (Ananai cnmo.ms L.) is a fmit, whicli has high economic value because of its wide variety of uses. Itis not only consumed fresh, but also made into syrup, taffy, andother candies, Jam and dried into chips. Thecultivation pineapple in the Rinibo Panjang Village, Tambang District, Subprovince of Kampar, Province ofRiau still uses traditional growing and culUvication methods, which result in low productivity. Conservationand diseases control are areas that need to be iraprovcd.Thc purpose of this research Ls to identifify the diseasesbased on characteristic morphology and that attack stage at the pineapple. The research was conducted in Pestand Plant diseases Laboratory of Agricultural Faculty at Riau University.This research used survey methodbased on field area, quantity of population, and plants were produced. The results of the research indicated thatsire two type of diseases attacking the pineapple crops. The First is a leaf spot caused Curvulariamaculans,infecting some 34.6 % in the field 4, The second is decay the fruits caused Thiehviopsis paradoxa, and wasfound in 32 % of the crop in field 2.

Co-Authors ', Wardati ., Irfandri Agus Sutikno Aras Mulyadi Benny Heltonika Defri Yoza DELIMA SABATINY Desi Rahmadani Siagian Efriyeldi, Efriyeldi Fajriani Ananda Fifi Puspita Fuadi, Indra Hafiz Fauzana Hendra Taufik Hutomo, Ragil Tribhakti Idwar Imran , Imran Imran Imran 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 Sukendi Sukendi TAMPUBOLON, MORINA CHRONIKA Uci Oktavia Wardati ' Wijayanto, Dimas Yusni Ikhwan Siregar Zafitra, Zafitra

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