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INDONESIA
EUGENIA
Published by Universitas Sam Ratulangi
ISSN : -     EISSN : -     DOI : -
Core Subject : Agriculture,
Agriculture, Biological Sciences & Forestry
The aims of this journal is to provide a venue for academicians, researchers and practitioners for publishing the original research articles or review articles. The scope of the articles published in this journal deal with a broad range of topics, including: Agronomi, Protection, Soil, Forestry, Agroecotecnology.
Arjuna Subject : -
Articles 198 Documents
 13   14   15   16   17 
PEMANFAATAN KOMPOS UNTUK MENINGKATKAN HASIL STROBERI ORGANIK DI KOTA TOMOHON Supit, J. M.J.; Kamagi, Y. E.B.; Kumolontang, W.
EUGENIA Vol 22, No 3 (2016)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/eug.22.3.2016.23259

Abstract

ABSTRACT  Study on compost utilization to support organic strawberry production in Tomohon has been performed to promote the use of compost (mixture of chicken manure and rice husk) in organic strawberry and to determine the compost dosage producing highest strawberry yield. Completely randomized design (CRD) with 4 (four) replicates  has been performed to apply various compost levels, namely 60 t/ha (SPo), 60 t/ha (SP1), 120 t/ha (SP2), 180 t/ha (SP3), and 240 t/ha (SP4). Data analysis has been conducted by means of analysis of variance (ANOVA) followed by the Least Significant Difference Test.  The results revealed the significant yield differences among treatments.  The highest result (28 fruits/ pot having 174.64 gram weight) was found in SP3 compost level (180 t/ha).Key words: compost, agricultural land Rurukan Tomohon, strawberries
ANALISIS KEMAMPUAN VEGETASI DALAM MEREDAM KEBISINGAN Putra, Imam Syah; Rombang, J. A.; Nurmawan, W.
EUGENIA Vol 24, No 3 (2018)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/eug.24.3.2018.22660

Abstract

ABSTRACT Noise is one of the environmental problems that is often overlooked. To solve an environmental problems like this, vegetation is considered as the most effective and efficient noise damper. This research was conducted in Warembungan Village, Pineleng District, Minahasa Regency from May to July 2018, using the 3 factor factorial field experiment method in a Randomized Block Design, 3 main factors are vegetation canopy cover level, rotation per minute (RPM) rate of sound source, and distance level. The vegetation canopy cover level was determined purposively.The aim of this research to determine the capacity of various level of vegetation canopy coverage to reduce noise at various levels of noise. The role of vegetation in reducing noise depends on the coverage of vegetation canopy. At low level coverage of vegetation canopy, noise decreases about 1.25 dBA or 1.69% lower than the noise recorded without vegetation coverage. at the middle level coverage and high level coverage of vegetation canopy, the noises decrease about  2.46 dBA (or 3.32% lower) and 5.72 dBA (or 7.82% lower) respectively. Keywords: sound, noise, vegetation, canopy cover
Ecological Restoration of A Logged-over Area in the South Bolaang Mongondow Rainforest Langi, M A; Saroyo, Saroyo
EUGENIA Vol 24, No 2 (2018)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/eug.24.2.2018.28787

Abstract

This research has been conducted over the past 12 years and was aimed to gain understanding on the complex interactions involved in the maintaining and restoring biodiversity that might influence the flow of ecosystem services. The method used in this study is annual measurement and observation conducted through surveys into similar sites conducted in every November to December since 2004.  Stand structures consist of indicators of tree density, tree structure, crown coverage, and species composition.  Function and sustainability are describes through biodiversity (Shannon index), natural colonization (abundance), wildlife density and status (species richness), nutrient retention (litter fall and decomposition), soil and water quality (erosion and sedimentation, soil physics, water debit and clarity).  This study is still going on addressing an important question, that is “How long does it take for degraded forest land to achieve certain biodiversity or functional outcomes?” In relation to that, some indicators have begun to show certain patterns and tendencies.
PROSPEK PEMANFAATAN BIOPESTISIDA BAKTERI ENTOMOPATOGENIK ISOLAT LOKAL SEBAGAI AGEN PENGENDALI HAYATI HAMA TANAMAN SAYURAN Salaki, Ch L; Tarore, D
EUGENIA Vol 24, No 2 (2018)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/eug.24.2.2018.28788

Abstract

The utilization efforts of entomopathogenic bacteria as an insecticide is still being developed. One of the pathogens with the potential to be developed as a source of insecticide is Bacillus spp. The study aims to determine the level of pathogenicity and the pathogenicity spectrum, as well as obtain isolates with high virulence against pests of vegetable crops to be used as a biopesticide candidates. Testing the power to kill larvae isolates of Bacillus thuringiensis against Crocidolomia pavonana, Plutella xylostella and Spodoptera litura performed by the method of Ohba and Aizawa. The results showed that of 21 local isolates B. thuringiensis, there were 15 isolates that could cause mortality of > 50% for the larvae of C. binotalis, 20 isolates against larvae of P. xylostella and 12 isolates against larvae of S. litura. LT50for treatment of B. thuringiensis in C. pavonana pests reached at 15.5 hours, at P. xylostella 10.2 hours and S. litura at 22.4 hours. Potential selected isolates based on their pathogenicity were then developed into biopesticide candidates to control pest Crocidolomia pavonana, Plutella xylostella and Spodoptera litura in vegetable crops
PEMANFAATAN ENTOMOPATOGEN INDIGENOUS INDONESIA SEBAGAI KANDIDAT BIOPESTISIDA RAMAH LINGKUNGAN TERHADAP HAMA PENTING TANAMAN CABAI Salaki, Ch L; Pelealu, Jantje
EUGENIA Vol 24, No 3 (2018)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/eug.24.3.2018.28791

Abstract

The purpose of this study was to obtain potential isolates of entomopathogenic bacteria and fungi that can be formulated into superior biopesticide candidates. The research methods used were 1) exploration of entomopathogenic bacteria and fungi from isolation of soil samples and infected insect pests, 2) rearing test insects and chili plant nurseries, 3) testing the killing power of entomopathogenic bacterial and fungal isolates against key pests of chilli plants and 4) pathogenicity testing of entomopathogenic bacteria and fungi to chilli plant pests. 104 soil samples were obtained from the field, consisting of paddy soil, plantation land, yard and forest soil with 21 isolates of Bacillus thuringiensis isolates. Sampling of entomopathogenic fungi was found in 17 insects attacked by entomopathogenic fungi. From the results of testing of all B. thuringiensis isolates, there were 12 isolates that could kill test larvae (S. litura) at a success rate greater than 50% 96 hours after preparation and 8 isolates that were able to kill the test nymph (M. persicae) at a success rate greater than 50% 96 hours after treatment. The results of testing the killing power of entomopathogenic fungi isolates were found to be the highest ability to kill S. litura larvae (93.3%), followed by MMITO isolates (86.7%) and MMSAM (80.0%). These isolates were isolates from the fungus Metarhizium anisopliae. The results of the selection of B. bassiana isolates in S. litura larvae were the best isolates of BEMSAM (86.7%) followed by BEMTTO isolates (83.3%). Whereas for testing the nymph Myzus persicae, mortality above 50% occurred through 2 isolates of Metarhizium anisopliae and 3 isolates of Beauveria bassiana. The pathogenicity test of Bacillus thuringiensis isolates showed that the highest mortality of Spodoptera litura in TTM isolates with a concentration of 5.02 x 105 with the fastest death time 28.2 hours after treatment. Whereas in the test of Myzus persicae, the highest mortality was in the TYM isolate with a concentration of 6.3 x 104 with the fastest death time was 22.4 hours after treatment.
STUDI KERAGAMAN POLA PITA DNA DAN KESERAGAMAN POPULASI KELAPA GENJAH SALAK (GSK) BERDASARKAN PENANDA RAPD Hengky, Novarianto; Runtunuwu, Semuel D.; Lengkong, Edy F.; Singkoh, Merlyn
EUGENIA Vol 13, No 1 (2007)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/eug.13.1.2007.7430

Abstract

ABSTRACT Novarianto, H., et.al. 2007. The Study of the Variety of DNA Tape Form and the Coconut Genjah Salak Population Variety Based on RAPD Code. Eugenia 13 (1):109-118.   The goal of this research to study the variety of DNA tape form and the population variety of coconut Genjah Salak (GSK) based on RAPD code (Randomly Amplified Polymorphic DNA). 25 trees individu of coconut GSK was amplification the genomic of DNA using 35 primer Operon Kit A and Kit B. The coconut GSK individu tree that were analyse was selected based on the female flower production, with average above 40 female flower. The electrophoresis of DNA result of amplication PCR get tape form monomorfic and polimorfic between 25 individu coconut GSK trees that was analyzed. OPA 09 primer and OPB 06 get the result of monomorfic tape form, other wise the OPA 13 primer, OPB 05 and OPB 10 get polimorfic tape form. The genetic similarity in coconut Genjah Salak (GSK) population based on RAPD code rate was 88 % or have the variety genetic of 12 %. Therefore based of this similarity the coconut GSK population was clustering in five groups. The goal of this research to study the variety of DNA tape form and the population variety of coconut Genjah Salak (GSK) based on RAPD code (Randomly Amplified Polymorphic DNA). 25 trees individu of coconut GSK was amplification the genomic of DNA using 35 primer Operon Kit A and Kit B. The coconut GSK individu tree that were analyse was selected based on the female flower production, with average above 40 female flower. The electrophoresis of DNA result of amplification PCR get tape form monomorfic and polimorfic between 25 individu coconut GSK trees that was analyzed. OPA 09 primer and OPB 06 get the result of monomorfic tape form, other the OPA 13 primer, OPB 05 and OPB 10 get polimorfic tape form. The genetic similarity in coconut Genjah Salak (GSK) population based on RAPD code rate was 88 % or have the variety genetic of 12%. Therefore based of this similarity the coconut GSK population was clustering in five groups. Keywords: Keragaman genetic; kelapa Genjah Salak (GSK), Randomly Amplified Polymorphic DNA (RAPD)
RESPON PERTUMBUHAN JAGUNG TERHADAP PEMBERIAN PUPUK-PUPUK NPK, UREA, SP-36, DAN KCL Titah, Tilda; Purbopuspito, Joko
EUGENIA Vol 22, No 2 (2016)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/eug.22.2.2016.12957

Abstract

ABSTRACT Potted trial for understanding Maize (Zea mays, L.) growth responses on the given dosage of 100 kg N/ha of NPK and Urea, 100 kg P/ha of SP-36, and 100 kg K/ha KCl fertilizers growing on Latosol Kalasey was conducted in six replicates until the plants reaching 8 weeks old at the backyard of Soil Department building. Plant height and number of mature leaves increased significantly with age of Maize plants, but the plant responses on given fertilizers did not significantly different.  Fresh weight dan oven-dry weight of Maize stalk did also show similar trend due to given fertilizers; however, application of singular fertilizers, such as: Urea, SP-36 and KCl gave relatively higher results in contrast to the compound NPK fertilizer.  Urea tend to increase succulence of Maize plants. Keywords: maize, growth response, NPK, Urea, SP-36, KCl, fertilizers
CONTROL OF CACAO POD BORER, CONOPOMORPHA CRAMERELLA SNELLEN ON CACAO PLANTATIONS IN NORTH SULAWESI USING DEGRADABLE POLYMER SLEEVES Sembel, Dantje T.; Watung, J.; Shepard, Merle; Hamming, Mike; Carner, Garry R.
EUGENIA Vol 17, No 2 (2011)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/eug.17.2.2011.3530

Abstract

ABSTRACT Research was aiming to control the cocoa pod borer, Conophomorpha cramerella using different thickness of degradable plastic and regular plastic by sleeving to protect pods. The studies were carried out in abandoned cacao plantation at Sapa, and commercial cacao plantations at Pungkol in the sub-district of South Minahasa in North Sulawesi, Indonesia. Result showed  that sleeving with plastic at different thickness can reduce markedly the infestation by CPB but there was no significant difference between thickness and type of plastic. Between 85 to 95 % of the pods sleeved with degradable and  non- degradable plastic at the commercial cacao plantation  were not damaged by CPB  but 96 % of control (unsleeved pods)  was damaged by CPB. Key words: Conopomorpha cramerella, cocoa plantations, degradable plastic bags
KOMUNITAS SERANGGA HAMA PADA KOMODITI JAGUNG DI KECAMATAN MOOTILANGO, KABUPATEN GORONTALO PROVINSI GORONTALO Rahman, Muskina Dj.; Dien, Moulwy F.; Mamahit, J. E.
EUGENIA Vol 18, No 3 (2012)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/eug.18.3.2012.4093

Abstract

ABSTRACT   The research was aimed to determine the types of insect pests that attack corn in storage. This was conducted from April to July, 2011 in the district of Mootilango, Gorontalo Province. The sampling was conducted in a purposive sampling, which is taking the samples of suspected commodity corn pests. Samples were taken by the corn at the corner and the center of the diagonal area of which as many as 250 grams, then put them into a jar and covered with a soft cloth. Sampling was carried out four  times in every two weeks. The research found seven types of insect pests on the corn in storage, which consisted of six orders of Coleoptera and 1 order of Lepidoptera. The results showed that, the identification of insect pests were: Sitophilus sp., Ahasverus sp., Oryzaephilus sp., Tribolium sp., Rhyzopertha sp., Cryptolestes sp., and Sitotroga sp. Sitophilus sp., an insect pest with the highest population, was reached an average of 79.01 individuals, followed by Tribolium sp. (14.79 individuals), Cryptolestes sp. (13.30 individuals), Oryzaephilus sp. (11.26 individuals), Ahasverus sp. (7.45 individuals), Sitotroga sp. (4.30 individuals) and Rhyzopertha sp. (2.15 individuals). Keywords : Insect pest storage, corn   ABSTRAK Penelitian ini bertujuan untuk mengetahui jenis-jenis serangga hama yang menyerang jagung pipilan di penyimpanan. Penelitian telah dilakukan sejak bulan April sampai dengan Juli 2011 di Kecamatan Mootilango, Kabupaten Gorontalo, Provinsi Gorontalo. Pengambilan sampel dilakukan secara purposive sampling yaitu dengan mengambil sampel komoditi jagung pipilan yang diduga terserang hama.  Sampel komoditi jagung pipilan diambil pada bagian sudut dan bagian tengah (diagonal) yang masing-masing sebanyak 250 gram, kemudian dimasukkan ke dalam stoples dan disungkup dengan kain kasa halus.  Pengambilan  sampel dilakukan sebanyak 4 kali dengan interval waktu 2 minggu sekali. Hasil penelitian ditemukan 7 jenis serangga hama pada jagung pipilan dipenyimpanan yang terdiri dari 6 ordo Coleoptera dan 1 ordo Lepidoptera.  Hasil identifikasi menunjukkan bahwa serangga hama yang ditemukan adalah Sitophilus sp., Ahasverus sp., Oryzaephilus sp., Tribolium sp.,  Rhyzopertha sp.,  Cryptolestes, dan Sitotroga sp. Sitophilus sp. merupakan serangga hama dengan populasi tertinggi yakni mencapai rata-rata 79,01 individu, kemudian diikuti oleh Tribolium sp. (14,79 individu), Cryptolestes sp.  (13,30 individu),  Oryzaephilus sp. (11,26 individu), Ahasverus sp. (7,45 individu), Sitotroga sp. (4,30 individu) dan Rhyzopertha sp. (2,15 individu) Eugenia Volume 18 No. 3  Desember 2012 Kata kunci : serangga hama gudang, jagung pipilan
PERKECAMBAHAN BENIH JAGUNG (Zea mays L.) PADA BERBAGAI UMUR PANEN BENIH DAN KELEMBABAN MEDIA TANAM Rikumahu, Vilma Victa; Pongoh, J.; Paulus, J. M.
EUGENIA Vol 18, No 3 (2012)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/eug.18.3.2012.6478

Abstract

ABSTRACT Research has been implemented as of July 2012, in the  BPSB Laboratory  of North Sulawesi Province i.e.: 1) to test the seed lacking in vigour during the Random Complete Design with three treatments of the various harvest ages, i.e. U1 (90 dasy), U2 (100 days) and U3 (110 days) treatments repeated four times; 2) in the greenhouse to see the amount of the normal, sprouts abnormal, seeds, hard seed and dead, shoot root ratio by using the Random Completed Design with two factors, respectively are : factorial in complete factors of the first different age harvest U1 (90 days), U2 (100 days) and U3 (110 days), the second factor granting of the water with different capacity P1 (3600 ml), P2 (2700 ml), P3 (1800 ml) and P4 (900 ml). Data analysis were found by the various analysis, however if there are different results, it would continue on the Smallest Significant Test. The results showed that, Electric Power Conductivity (EPC) affected by the age of harvest seed corn. The highest EPC at the harvest ages of 90 days and the lowest at 100 days and 110 days. It would be shown that the great value of EPC, the smallest amount of germination. There is no interaction between the age of abnormal seeds, hard seed die, shoot root ratio and high sprouts, but single factor treatment of harvest age and media planting humidity were significantly effected toward sprout normal, abnormal seed, hard seed die, shoot root ratio and high sprouts. Keywords : corn seed, harvest ages, humidity ABSTRAK   Penelitian dilaksanakan sejak bulan Juli 2012, penelitian pertama di Laboratorium Balai Penelitian dan Sertifikasi Benih (BPSB) Provinsi Sulawesi Utara, untuk menguji vigor benih menggunakan Rancangan Acak Lengkap dengan tiga perlakuan umur panen yang berbeda: U1 (90 Hari), U2 (100 Hari) dan U3 (110 hari) perlakuan diulang empat kali. Penelitian kedua di Rumah Kaca untuk melihat jumlah kecambah normal, abnormal, benih keras,benih mati dan nisbah pupus akar  menggunakan Rancangan Acak Lengkap disusun secara faktorial  dengan  2 faktor  masing-masing adalah : faktor pertama : Umur Panen yang berbeda, U1 (90 Hari), U2 (100 Hari) dan U3 (110 hari). faktor kedua pemberian air dengan kapasitas yang berbeda, P1 (3600 ml), P2 (2700 ml), P3 (1800 ml) dan P4 (900 ml). Data yang diperoleh menggunakan analisa ragam dan jika terdapat perbedaan perlakuan dilanjutkan dengan uji Beda Nyata Terkecil  (BNT). Hasil penelitian yang didapat adalah; Daya hantar listrik (DHL) dipengaruhi oleh umur panen benih jagung, DHL tertinggi pada umur panen 90 hari dan yang terendah umur panen 100 dan 110 hari. Hal ini menunjukan bahwa semakin besar nilai DHL semakin kecil jumlah perkecambahan. Tidak terdapat interaksi antara umur panen benih dan kelembaban media tanam terhadap jumlah kecambah normal, abnormal, benih keras, benih mati, nisbah pupus akar dan tinggi kecambah tetapi secara tunggal faktor perlakuan umur panen dan kelembaban media tanam berpengaruh nyata terhadap kecambah normal, abnormal, benih keras, benih mati, nisbah pupus akar dan tinggi kecambah. Kata kunci : benih jagung, umur panen, kelembaban

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