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EUGENIA
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Core Subject : Agriculture,
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.
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Articles 198 Documents
PREDIKSI GENOTIPE TETUA JAGUNG BERBULIR UNGU BERDASARKAN KESESUAIAN NISBAH HARAPAN PADA BULIR S1 DAN S2 Pamandungan, Yefta; Purwantoro, Aziz; Basunanda, Panjisakti
EUGENIA Vol 18, No 3 (2012)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/eug.18.3.2012.4097

Abstract

ABSTRACT   The research was aimed to determine the parent genotypes of purple corn by the similarity of expected ratio on kernels S1 and S2 using four locus models, Pr/pr, C/c, R/r and Y/y genes. The study was conducted in two phases, namely, 1) Making the individuals of selfing to-1 (S1), and 2) Making the individuals of selfing to-2 (S2). Observed data in the form of kernel per ear of corn was separated by the characters of purple, yellow and white color then analyzed by using the Chi-square Test. The results showed that the offspring genotype from selfing on the base population can be predicted by looking at the suitability between the offspring and parental genotypes based on the ratio of expectation. Parent genotypes prediction on the base population of selfing were PrPrCcRrYy, PrPrCcRryy, PrPrCcRrYY, PrPrCcRRYY and PrPrCCRrYY. Keywords: parent genotypes, purple kernel, corn ABSTRAK Tujuan penelitian ini adalah mengetahui genotipe tetua jagung berbulir ungu berdasarkan kesesuaian dengan nisbah harapan pada bulir S1 dan S2 menggunakan model empat lokus yaitu gen Pr/pr, C/c, R/r dan Y/y. Penelitian dilakukan dalam dua tahap yaitu, 1) pembuatan individu hasil selfing ke-1 (S1), dan 2) pembuatan individu hasil selfing ke-2 (S2). Data hasil pengamatan berupa bulir jagung per tongkol yang dipisahkan berdasarkan karakter warna ungu, kuning dan putih selanjutnya dianalisis dengan menggunakan uji khi kuadrat. Hasil penelitian menunjukkan bahwa genotipe keturunan hasil selfing pada populasi dasar dapat diprediksi dengan melihat kesesuaian antara genotipe keturunan dan tetua berdasarkan nisbah harapan. Prediksi genotipe tetua pada populasi dasar selfing adalah PrPrCcRrYy, PrPrCcRryy, PrPrCcRrYY, PrPrCcRRYY dan PrPrCCRrYY. Kata kunci: genotipe tetua, berbulir ungu, jagung
PROSPEK PEMANFAATAN BIOPESTISIDA BAKTERI ENTOMOPATOGENIK ISOLAT LOKAL SEBAGAI AGEN PENGENDALI HAYATI HAMA TANAMAN SAYURAN Salaki, Ch. L.; Tarore, D.; Manengkey, G.
EUGENIA Vol 19, No 1 (2013)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/eug.19.1.2013.8375

Abstract

ABSTRACT The utilization efforts of entomopathogenic bacteria as an insecticide is still being developed. One of the potential pathogen, which is developed as a source of insecticide is Bacillus spp. The study aims to determine the level of pathogenicity, and get the pathogenity spectrum isolates in the high virulences against the pests of vegetable crops to be used as a biopesticide candidates. Testing the power to kill larvae isolates of Bacillus thuringiensis against Crocidolomia binotalis, Plutella xylostella and Spodoptera litura was performed by the Method of Ohba and Aizawa. The results showed that, of 21 local isolates B. thuringiensis, there were 15 isolates could cause the mortality of > 50% of the larvae of C. binotalis, 20 isolates toward larvae of P. xylostella and 12 isolates toward larvae of S. litura. The isolates, which could potentially be selected based on the pathogenicity, the candidates will then be developed into a biopesticide for pests control of Crocidolomia binotalis, Plutella xylostella and Spodoptera litura on vegetable crops. Keywords: biopesticide, entomopathogenic bacteria, vegetable plants     ABSTRAK Upaya pemanfaatan bakteri entomopatogenik sebagai insektisida masih terus dikembangkan. Salah satu patogen yang berpotensi untuk dikembangkan sebagai sumber insektisida adalah bakteri Bacillus spp. Penelitian bertujuan untuk mengetahui tingkat patogenisitas, spektrum patogensisitas dan mendapatkan isolat yang memiliki virulensi yang tinggi terhadap hama tanaman sayuran untuk dijadikan sebagai kandidat biopestisida. Pengujian daya bunuh isolat Bacillus thuringiensis terhadap larva uji Crocidolomia binotalis, Plutella xylostella dan Spodoptera litura dilakukan dengan Metode Ohba dan Aizawa. Hasil penelitian menunjukkan bahwa dari 21 isolat B. thuringiensis lokal terdapat 15 isolat yang dapat menyebabkan mortalitas > 50 % terhadap larva C. binotalis, 20 isolat terhadap larva P. xylostella dan 12 isolat terhadap larva S. litura. Isolat yang berpotensi selanjutnya akan diseleksi berdasarkan patogenisitasnya kemudian akan dikembangkan menjadi kandidat biopestisida untuk mengendalikan hama Crocidolomia binotalis, Plutella xylostella dan Spodoptera litura pada tanaman sayuran. Kata kunci : biopestisida, bakteri entomopatogenik, tanaman sayuran
PRODUKTIVITAS LAHAN, KOMPETISI, DAN TOLERANSI DARITIGA KLON UBIJALAR PADA SISTEM TUMPANG SARI DENGAN JAGUNG Paulus, Jeanne Martje
EUGENIA Vol 11, No 1 (2005)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/eug.11.1.2005.11881

Abstract

ABSTRACT Paulus, J.M. 2005. Land Productivity, Competition, and Tolerance of Three Sweet Potato Clones Planted as Intercroping with Maize. Eugenia 11 (1): 1-7. A field experiment was conducted in Cikeumeuh Experimental Garden of Food Crop Biotechnology Research Station (BAUTBIO) Bogor to study Land Equivalent Ratio (LER), Competition Ratio (CR), and Stress Tolerance (TOL) of sweet potato and maize. The highest tuber yiled of sweet potato was 16,83 ton ha-[1] gained by CIP-2 at 100 cm planting distance of maize and the highest maize yiled was 4,50 ton ha-1 Cangkuang in intercropping with Cangkung clone. The LER, CR, and TOL, CIP-2 and SQ were suitable for intercrops at all planting distance but Cangkuang was not suitable for intercrops with maize. Keywords: Ipomoea batatas, clon, intercroping [1] Jurusan Budidaya Pertanian, Fakultas Pertanian UNSRAT Manado, 95115
KEANEKARAGAMAN JENIS POHON DI HUTAN LINDUNG GUNUNG SAHENDARUMAN, KABUPATEN KEPULAUAN SANGIHE Kainde, Reynold P.
EUGENIA Vol 17, No 1 (2011)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/eug.17.1.2011.102

Abstract

This research was carried out in the Mount of Sahendaruman Protection Forest from February to May2006, aiming to find out information tree spesies biodiversity. The method was exploration usingtransects of 20m wide from the mountain top divided in 8 directions. Result showed that there were 70tree species from 32 families belong to Magnoliopsida (dicotyl) and division of Magnoliophyta (flowerplant). There were 7 tree species in which member of Euphorbiaceae, Lauraceae dan Rubiaceae. Fivetree species were member of Apocynaceae. Four tree species were member of Meliaceae. Family ofActinidaceae, Burseraceae, Guttiferae, Monimiaceae had three species each. The following familynamely Anacardiaceae, Araliaceae, Myristicaceae, Myrtaceae, Theaceae donated two species each.Each family of Aquifoliaceae, Bignoniaceae, Celastraceae, Combretaceae, Combretaceae,Ealeocarpaceae, Ebenaceae, Fagaceae, Flacour tiaceae, Gesperiaceae, Mimosaceae, Moraceae,Ochnaceae, Rutaceae, Sapindaceae, Sapotaceae, Saxifragaceae, Staphyleaceae accounted onespecies. ABSTRAKPenelitian ini dilaksanakan di Hutan Lindung Gunung Sahendaruman Kebupaten Kepulauan Sangihe,yang berlangsung mulai bulan Februari – Mei 2006 dengan tujuan untuk mendapatkan informasitentang keanekaragaman jenis pohon di Hutan Lindung Gunung Sahendaruman. Penelitian inimenggunakan metode eksplorasi dengan menggunakan jalur pengamatan. Lebar jalur 20 m dan arahjalur dari puncak ke arah bawah dan dibagi menjadi 8 arah. Hasil yang diperoleh menunjukan bahwaterdapat 70 jenis pohon dari 32 famili yang keseluruhan jenis-jenis pohon tersebut adalah kelasMagnoliopsida (tumbuhan dikotil) dan divisi Magnoliophyta (tumbuhan berbunga) Kelas Magnoliopsida(tumbuhan dikotil). Terdapat 7 jenis pohon yang merupakan anggota Euphorbiaceae Lauraceae danRubiaceae, 5 jenis pohon anggota Apocynaceae, 4 jenis pohon anggota of Meliaceae, 3 jenis pohonanggota of Actinidaceae, Burseraceae, Guttiferae, Monimiaceae, 2 jenis pohon anggotaAnacardiaceae, Araliaceae, Myristicaceae, Myrtaceae, Theaceae dan yang memiliki jumlah jenis palingsedikit adalah famili Aquifoliaceae, Bignoniaceae, Celastraceae, Combretaceae, Combretaceae,Ealeocarpaceae, Ebenaceae, Fagaceae, Flacour tiaceae, Gesperiaceae, Mimosaceae, Moraceae,Ochnaceae, Rutaceae, Sapindaceae, Sapotaceae, Saxifragaceae, Staphyleaceae, Sterculiaceae yangmasing-masing family tersebut diperoleh satu jenis pohon.
PERBAIKAN SIFAT FISIK DAN KIMIA TAILING MELALUI PEMBERIAN AMELIORAN BERBASIS BAHAN ORGANIK Sondakh, T. D.; Sumampow, D. M.F.; Polii, M. G.M.
EUGENIA Vol 23, No 3 (2017)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/eug.23.3.2017.18965

Abstract

ABSTRACT A research Improvement on Physical and Chemical Properties  of Tailing Using Organic Matter as  Ameliorant. The experiment aims to study the effect of organic matter as an ameliorant on growth and yield of sweet corn,  and soil  properties of tailings, to design improvement in the physical and chemical fertility of tailings through the management of organic materials. The study used a Randomized Block Design consisting of 6 treatments. The treatments are: A = 100% water hyacinth, B = 50% water hyacinth + 50% chicken manure, C = 50% water hyacinth + 50% cow dung, D = 50% water hyacinth + 50% market waste, and E = 50% water hyacinth + 50% rice straw, and. F = 20% Water hyacinth + 20% cow dung + 20% Chicken manure + 20% market waste + 20% rice straw. Each treatment was repeated four times to obtain 24 pot experiments. Maize planted on the media as a remediator plant. Response variables observed, including: 1) physical andchemical properties of tailing before research, 2) physical and chemical properties of tailing after research, 3) plant height, 3) number of leaves, 4) length of cob, 5) diameter of cob, 6) weight of cob, measured at harvest time.. The results showed ameliorant-based organic materials can improve the physical and chemical soil tailings.Organic materials 20% Water hyacinth + 20% cow dung + 20% Chicken Pump + 20% market waste + 20% rice straw increase plant height and number of sweet corn crops.Organic ingredients 50% Water hyacinth + 50% chicken droppings give the best sweet corn yield.Keywords:improvement, physical and chemical, tailing,  ameliorant  ABSTRAK Penelitian Perbaikan Sifat Fisik dan Kimia dari Tailing Melalui Pemberian Amelioran Berbasis Bahan Organik bertujuan untuk mempelajari pengaruh bahan organik sebagai amelioran terhadap pertumbuhan dan hasil jagung manis, serta untuk merancang perbaikan kesuburan fisik dan kimia tailing melalui pengelolaan bahan organik. Penelitian ini menggunakan Rancangan Acak Kelompok yang terdiri dari 6 perlakuan. Perlakuan tersebut adalah: A = 100% enceng gondok, B = 50% eceng gondok + 50% kotoran ayam, C = 50% eceng gondok + 50% kotoran sapi, D = 50% enceng gondok + 50% limbah pasar, dan E = 50% eceng gondok + 50% jerami padi, dan. F = 20% Eceng gondok + 20% kotoran sapi + 20% Kotoran ayam + 20% limbah pasar + 20% jerami padi. Setiap perlakuan diulang empat kali  sehingga diperoleh 24 percobaan pot. Tanaman jagung manis sebagai tanaman remediator. Variabel respon yang diamati meliputi: 1) sifat fisik dan kimia sebelum penelitian, 2) sifat fisik dan kimia tailing setelah penelitian, 3) tinggi tanaman, 3) jumlah daun, 4) panjang tongkol, 5) diameter tongkol, 6) bobot tongkol, diukur pada saat panen. Hasil penelitian menunjukkan bahwa bahwa bahan organik berbasis amelioran dapat memperbaiki fisik dan kimia tailing. Perlakuan B adalah 50% eceng gondok + 50% pupuk kandang ayam dan perlakuan F (20% enceng gondok + 20% kotoran sapi + 20% kotoran ayam + 20% limbah pasar + jerami padi 20%) memberikan hasil jagung dan jagung terbaik. Amelioran berdasarkan bahan organik meningkatkan kandungan N, P, dan K dan memperbaiki sifat fisik tailing.Kata kunci : perbaikan, sifat fisik dan kimia, tailing, amelioran
PEMANFAATAN BAKTERI ENTOMOPATOGENIK Bacillus cereus TERHADAP HAMA Spodoptera litura PADA TANAMAN KUBIS Senewe, Emmy; Maramis, Redsway; Salaki, Christina L.
EUGENIA Vol 18, No 2 (2012)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/eug.18.2.2012.3567

Abstract

ABSTRACT This study aims to obtain entomopatogenik bacteria (Bacillus cereus) as a potential biological control of pests Spodoptera litura and determine the morphological characteristics and the potential power to kill isolate B. cereus. Explored endogenous bacteria from 99 soil samples from Minahasa regency, South Minahasa and Tomohon. Bacteria were isolated by selectively using methods Ohba and Aizawa  identified by colony and cell morphology. The results showed that of the 99 soil samples obtained 141 isolates were identified as Bacillus cereus. Screening 141 isolates of the 80 isolates contained S.litura larvae that can cause deadly diseases and test larvae  >50% after 96 hours with a dose of inoculum  1.5 x 107 spores / ml. Isolates that could potentially then be selected based on the pathogenicity then be developed into a biopesticide for pest control S. litura on cauliflower and broccoli plants. Keywords: Entomoopatogenic bacteria, Spodoptera litura, cabbage plants
PERBANYAKAN IN VITRO PISANG BARANGAN (Musa paradisiacal Var. Sapientum L.) PADA MEDIA MURASHIGE DAN SKOOG DENGAN PENAMBAHAN BENZYLAMINOPURIN Tilaar, W.; Sompotan, saartje
EUGENIA Vol 13, No 2 (2007)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/eug.13.2.2007.7194

Abstract

ABSTRACT Tilaar, W. and S. Sompotan. 2007. Multiplication in vitro of Banana Crop (Musa paradisiacal var. Sapientum L.) in Murashige and Skoog Medium With Suplemented Benzyleaminopurine. Eugenia 13 (2):127-131.   The objectives of this research was to examine in vitro multiplication of Banana in Murashige and Skoog medium by supplementing Benzyleamynopurine. This research was conducted in May-August 2006 at Laboratorium Biotechnology Faculty of Agriculture Sam Ratulangi. A Randomized complete design was use with four replication on each treatment. The treatments were 0; 7,5; 10 and 12,5 ppm. The variables of observed were total shoot, shoot height, and total leaves. The data was analysis using analysis of variance. The result showed that there significant differences on variable total shoot and leaves total. However, there was not significant difference on shoot height.   Keywords: Multiplication in vitro, Murashige and Skoog Medium, Benzylaminopurin, Musa paradisiaca
PERTUMBUHAN LIRIOMYZA SATIVAE BLANCARD DAN NESIDIOCORIS TENUIS REUTER PADA BEBERAPA GALUR SERTA VARIETAS TOMAT Sembel, D.T.; Manoi, T.; Tulung, M.; Pongoh, J.; Meray, M.; Ratulangi, M.
EUGENIA Vol 17, No 1 (2011)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/eug.17.1.2011.93

Abstract

The objectives of thiswork was to study the difference on the population growths of these two pests of tomatoon plots with and without pesticide sprayings for 5 strains of tomatoes obtained from AVRDC (G1-G6) and 4 varieties (G7-G10) available in the local market. The population of leafminer started growing a week after replanting and reached the peak 7-8 weeks then it started declining until 12 weeks after replanting.Statistical analysis showed that there was no significant difference on the population growth of L. sativae on sprayed plots for all strains from AVRDCand varieties G7-G9 but it was significant different from G10. There was also no significant difference on population growths of L. sativae for strains G1,G2 and G4 to G7 and G8 but it was significant different with strains G5,G9 and G10 on sprayed plots and plots without spraying.The population of N. tenuis grew quicker and reached the peak on week 6 after replanting and starts declining until week 12th. Statistical analysis showed that there was no significant difference on the population of N. tenuis on all strains and varieties G7 and G8 on plots without spraying but there was significant difference for all strains and varieties G7-G9 with variety G10. ABSTRAKTujuan penelitian ini untuk mengetahui perbedaan pertumbuhan populasihama penggorok daun, Liriomyza sativae dan kepik tomat mirid, Nesidiocoris tenuis pada petak tanpa penyemprotan pestisida dan dengan penyemprotan pestisida pada 5 galur tomat yang berasal dari AVRDC dan 4 varietas tomat yang tersedia di pasaran.Populasi penggorok daun, L. sativae mulai terlihat sejak seminggu sesudah dipindahkan dan mencapai puncak 7-8 minggu kemudian populasihama mulai menurun sampai 12 minggu sesudah tanaman dipindahkan. Hasil analisis statistika tidak terdapat perbedaan nyata terhadap populasi L. sativae pada petak yang disemprot pestisida untuk semua galur dari AVRDC serta varietas G7- G9 tapi berbeda nyata dengan varietas G10. Juga, tidak terdapat perbedaan yang nyata antara populasi L. sativae untuk galur G1,G2, G4,G7dan G8 tetapi berbeda nyata dengan galur G5, G9 dan G10 pada petak yang tidak disemprot pestisida. Populasi L. sativae terendah pada varietas G10 baik pada petak penyemprotan maupunpetak tanpa penyemprotan pestisida.Populasi N. tenuis berkembang lebih cepat dan mencapai puncak pada minggu ke enam dan ke tujuh serta menurun sampai minggu ke 12 sesudah tanaman tomat dipindahkan.Hasil analisis statistika menunjukkan tidak terdapat perbedaan yang nyata terhadap populasi N. tenuis untuk semua galur dari AVRDC serta varietas G7 dan G8 pada petak tanpa penyemprotan tetapi terdapat perbedaan yang nyata antara semua galur dan varietas G7-G9 dengan varietas G10.
PENGENDALIAN Conopomorpha cramerella Snell MENGGUNAKAN FEROMON SEKS DI DESA MAKARTI JAYA KABUPATEN POHUWATO PROVINSI GORONTALO Muliku, Stevenlly J.; Tulung, M.; Pinaria, B. A.N.
EUGENIA Vol 23, No 2 (2017)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/eug.23.2.2017.16777

Abstract

ABSTRACT Cocoa is one of the agricultural products that have a big role, especially in terms of employment, regional development, increasing farmer welfare and increasing revenues/foreign exchange. One of the main pests is the cruncher of cocoa C. cramerella Snell. The research aims to get the technology of environmentally friendly cacao borer pest control through the use of sex pheromone traps. The study was conducted in Makarti Jaya Village, Pohuwato District, Gorontalo Province for 3 months (January - March 2017), using Randomized Block Design (RAK), with 3 treatments and 6 replications. The result of the research is the use of the six traps of pheromone sex succeeded in decreasing the intensity of PBK pest attack, after one month of attack intensity attack trapping decreased to 2.23%, lower than pesticide application which only 4.49%.Keywords: pheromone sex Conopomorpha cramerella Snell, cacao fruit snipper
LINGKUNGAN HIDUP STRATEGIS TERHADAP PERENCANAAN TATA RUANG KABUPATEN BOLAANG MONGONDOW TAHUN 2011-2030 Lepa, Alex A.; Polii, Bobby J.V.; Husain, Jailani
EUGENIA Vol 17, No 3 (2011)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/eug.17.3.2011.3548

Abstract

ABSTRACT   Strategic Environmental Assessment (SEA) can be done to ensure that the preparation of policy, planning and program (PPP)  on  spatial plan draft  of Bolaang Mongondow Regency  have included the sustainable development. The purpose of this study was (1) to asses whether the PPP have included the linkage, balance, and fairness principles. (2) to identify the environmental impact caused by implementing PPP defined in the Bolmong’s spatial plan. (3) to find out measures in mitigating  negative impacts resulting from PPP. The study was performed using quick appraisal approach by means of matrix analysis, expert judgements, secondary data, field survey, and literature. The result revealed that the score of PPP regarding linkage principle was very good (84.24%) as well as balance principle good (79.59%). The  fairness principle and SEA principle were  very good as well  which were  (83.72%),  (82.52%) respectively.  Identified nine issues of sustainable development resulted  negative and  positive impact . This study implied that mitigating  negative impacts could be achieved by integrating SEA principles to  articles that not fully considering SEA.