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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
 1   2   3   4   5 
JENIS DAN POPULASI SERANGGA HAMA PADA BERAS DI GUDANG TRADISIONAL DAN MODERN DI PROVINSI GORONTALO Ilato, Jems; Dien, Moulwy F.; Rante, Caroulus S.
EUGENIA Vol 18, No 2 (2012)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/eug.18.2.2012.3564

Abstract

ABSTRACT The quality and quantity of rice as a source of food for most of Indonesian people are closely connected with the activity of insect pests in Warehouse. This study aims to determine the species and insect pests populations on Rice at Traditional and Modern Warehouse in Province of Gorontalo. The study used a survey method shelter/rice warehouse in Mootilango district, Boliohuto District, and Tolangohula district, Gorontalo province. Sampling was conducted in a purposive sampling is to take a sample of the suspected rice pests. Sampling was carried out 4 times with a time interval of 2 weeks. The research found six species of insect pests on rice commodities in Gorontalo regency consisting of 5 species of the order Coleoptera and 1 type of the order Lepidoptera. The results show that the identification of insect pests found are Sitophilus oryzae (Coleoptera; Curculionidae), Tribolium castaneum (Coleoptera: Tenebrionidae), Carpophilus hemipterus (Coleoptera: Nitidulidae) Oryzaephilus sp. (Coleoptera; Silvanidae), Ahasverus sp. (Coleoptera; Cucujidae), Corcyra cephalonica (Lepidoptera; Pyralidae). Average highest pest insect populations, respectively S. oryzae (54.60 individuals), Tribolium sp. (13.85 individuals), Oryzaephilus sp. (4.52 individuals), Ahasverus sp. (3.42 individuals), Corcyra sp. (2.42 individuals) and C. hemipterus (6.94 individuals), while the highest populations of insect pests found in traditional 16.40 modern warehouses 12.34 individual Keywords : insect pests, rice, traditional and modern werehouse
IDENTIFIKASI VARIETAS KENTANG “SUPERJOHN” BERDASARKAN PENANDA RAPD (Random Amplified Polymorphic DNA) Runtunuwu, David S.; Rogi, J. E.X.; Palendeng, J. H.
EUGENIA Vol 17, No 1 (2011)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/eug.17.1.2011.7140

Abstract

ABSTRACT Identification using morphological characters has time consuming. Currently, identification using molecular markers has now been popular due to rapid, saving time and more precisely. Superjohn potato variety has been cultivated in North Sulawesi. However, the Superjohn potato variety has not been characterized using molecular markers. This research was aiming to identify “Superjohn” potato based on RAPD (Random Amplified Polymorphic DNA) markers. The research was conducted in field and laboratory. Field research was performed by taking some young leaves from “Superjohn”, Granola, and Atlantic variety from the field. Identification using molecular marker was conducted at laboratory.  Nine RAPD primers were used to identify the superjohn variety. The nine primers were OPA-1, OPA-2, OPA-3, OPA-4, OPA-5, OPA-7, OPA-9,  OPA-10, and  OPO-1.  The molecular identification revealed that “Superjohn” variety was different with Granola and Atlantic. OPA-9700 primer could be used for identification  “Superjohn” variety while OPA-101000 primer was suitable  for identification  Granola variety. Keywords:  Potatoes, variety, “Superjohn”, Granola, Atlantic, and RAPD ABSTRAK Penelitian ini dilakukan untuk mengidentikasi kentang “Superjohn” berdasarkan penanda RAPD (Random Amplified Polymorphic DNA).  Penelitian dilakukan di lapangan dan laboratorium. Penelitian lapangan dilakukan dengan mengambil beberapa daun muda dari varietas kentang “Superjohn”, Atlantik dan Granola. Kemudian  analisis DNA dilakukan di laboratorium menggunakan analisis RAPD. Berdasarkan penanda RAPD ternyata kentang “Superjohn” berbeda dari kentang Granola dan kentang Atlantik. Penanda RAPD OPA-9700 dapat digunakan untuk mengidentifikasi kentang“Superjohn” dan penanda RAPD  OPA-101000 dapat digunakan  untuk mengidentifikasi kentang Granola. Kata kunci:  Kentang,  varietas, Superjohn, Granola, Granola, RAPD
BIOLOGI Sitophilus oryzae dan Sitophilus zeamais (COLEOPTERA; CURCULIONIDAE) PADA BERAS DAN JAGUNG PIPILAN Manueke, Jusuf; Tulung, Max; Mamahit, J. M.E.
EUGENIA Vol 21, No 1 (2015)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/eug.21.1.2015.11802

Abstract

ABSTRACT   This study aims to determine the biological of Sitophilus oryzae and S. zeamais which includes development stadia, life cycle, long life, fecundity, mortality and sex ratio. Research using descriptive and substitutional methods. The research conducted in the laboratory of Entomology and Plant Pests and Pest Department of Pest and Disease Faculty of Agriculture Sam Ratul;angi University Manado. The results showed differences in the life cycle, long life and fecundity between S. oryzae and S. zeamais. Long life cycle and life imago S. oryzae shorter than S. zeamais. The life cycle of S. oryzae is 35.22 days and S. zeamais 49.13 days. Life long female imago S. oryzae 101 days and 88.75 days males, S. zeamais females and males 109.25 125.75 day day. Fecundity of S. oryzae lower than S. zeamais namely S. oryzae average 152.8 points and S. zeamais average of 203.0 points. Pradewasa mortality and sex ratio of S. oryzae and S. zeamais unchanged at S. oryzae 80.5% and 0.79, S. zeamais 77.0% and 0.77. Keywords: Sitophilus oryzae, Sitophilus zeamais, development stadia, life cycle, long life,  fecundity, mortality
SUBTITUSI PUPUK KALIUM (KCL) DENGAN ABU PENGASAPAN KOPRA UNTUK MENINGKATKAN PRODUKSI TANAMAN WORTEL Demmassabu, Sofia; Tulung, Stella; Sumayku, Bertje; Supit, Paula Ch.
EUGENIA Vol 17, No 1 (2011)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/eug.17.1.2011.99

Abstract

Research objectives were to study the interaction between fertilizing time and potasium fertilizer dosageand to evaluate the use of ash of copra fumigation to be potasium fertilizer substitute to increasingcarrot production. Randomized block design was used. The treatment was combination time ofapplication and dosage of fertilizer. Each treatment was repeated three times. The first factor was thetime of application consisted of the application at planting (A1) and application after two weeks (A2).The second factor was fertilizer dosage consisted of 100 % recomended potasium + 0 % ash of coprafumigation (B1), 75% recomended potasium + 25 % ash of copra fumigation (B2), 50% recomandedpotasium + 50 % ash of copra fumigation (B3), 25% recomanded potasium + 75 % ash of coprafumigation (B4), 0% recomanded potasium + 100% ash of copra fumigation (B5). Observed variableswere length of bulb (cm) , bulb diameter (cm), tuber fresh weight at haverst (g) and bulb yield per plot.The result showed that there was no interaction between time and dosage of fertilizer. Similarly, singlefactor both time and dosage of fertilizer did not affect the production of carrot. ABSTRAKTujuan penelitian ini untuk mempelajari pengaruh interaksi antara waktu pemberian dan dosis pupukkalium terhadap produksi tanaman wortel, dan mempelajari kemungkinan subtitusi pupuk kaliumdengan abu pengasapan kopra terhadap produksi tanaman wortel.Penelitian ini menggunakanrancangan acak kelompok dengan perlakuan kombinasi antara waktu aplikasi dan dosis pupuk kaliumyang di ulang 3 kali. Perlakuan tersebut adalah:Faktor A : waktu aplikasi yang terdiri dari 2 taraf, yaituA1 adalah aplikasi saat tanam dan A2 adalah aplikasi 2 minggu setelah tanam.Faktor B : dosis pupukyang terdiri dari 5 taraf yaitu: B1 = 100% Kalium anjuran + 0% abu pengasapan kopra, B2 = 75% kaliumanjuran + 25% abu pengasapan kopra, B3 = 50% kalium anjuran + 50 % abu pengasapan kopra, B4 =25% kalium anjuran + 75% abu pengasapan kopra, B5 = 0% Kalium anjuran + 100 % abu pengasapankopra, Variabel yang diamati : panjang umbi (cm), Diameter umbi (cm), berat segar umbi saat panen (g)dan hasil umbi per petak . Hasil penelitian menunjukkan bahwa tidak ada interaksi antara waktupemberian dan dosis pupuk terhadap variabel-variabel yang diamati : Panjang umbi, diameter umbi,berat segar umbi dan hasil umbi per petak. Demikian pula sebagai faktor tunggal baik waktu pemberianmaupun dosis pupuk tidak berpengaruh terhadap produksi tanam wortel.
PENGGUNAAN BEBERAPA JENIS BAHAN ORGANIK DENGAN WAKTU APLIKASI YANG BERBEDA PADA BUDIDAYA TANAMAN SAWI (Brassica juncea L.) Sompotan, S.; Raintung, J. S.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.23.3.2017.18962

Abstract

ABSTRACT Research on the Use of Multiple Types of Organic Materials with Different Application Times on Mustard (Brassica juncea L.) was conducted to study the effect of organic material source interaction and application time in improving the growth and yield of mustard and obtaining organic sources of materials and timing applications to improve growth and yield of mustard. Factorial research with two factors is designed using Group Random Design. The first factor was: source of organic material (A) consisted of: A1 = pig waste, A2 = cattle dung, A3 = rice straw. The second factor is application time (B) Time: B1 = 5 days before planting seedlings (SBTB), B2 = 10 days before planting seedlings (SBTB), B3 = 15 days before planting seedlings (SBTB) Each experimental unit is repeated three times there were 27 pot of experiments, the variables observed were: plant height, leaf number, leaf width, leaf length and weight of wet stratum. The data were analyzed using variance analysis and if there were difference followed by  Honest Real DifferenceTest at 5%. The results showed that effect of interaction between source of organic matter with different application time to the number of leaves, fresh weight, content of N, P, and K of soil after harvesting of mustard. Plant height and leaf length is singly affected by application time.  Source of organic material of cow dung and paddy straw at the time of application 10 and 15 days before planting seedlings give the best result on the number of leaves, fresh weight of mustard, N, P and K.Keywords: mustard, organic matter source, application time, organic fertilizer ABSTRAK Penelitian Penggunaan Beberapa Jenis Bahan Organik dengan Waktu Aplikasi yang Berbeda Pada Budidaya Tanaman Sawi (Brassica juncea L.) dilakukan untuk mempelajari pengaruh interaksi sumber bahan organik dan waktu aplikasi dalam meningkatkan pertumbuhan dan hasil sawi serta memperoleh sumber bahan organik dan aplikasi waktu yang tepat dalam meningkatkan pertumbuhan dan hasil sawi. Penelitian faktorial dengan dua faktor dirancang dengan menggunakan Group Random Design. Faktor pertama adalah: sumber bahan organik (A) terdiri dari: A1 = limbah babi, A2 = kotoran ternak, A3 = jerami padi. Faktor kedua adalah waktu aplikasi (B) Waktu: B1 = 5 hari sebelum penanaman bibit (SBTB), B2 = 10 hari sebelum penanaman bibit (SBTB), B3 = 15 hari sebelum penanaman bibit (SBTB) Setiap unit percobaan diulang sebanyak tiga kali Ada 27 pot percobaan, variabel yang diamati adalah: tinggi tanaman, jumlah daun, lebar daun, panjang daun dan berat lapisan basah. Data dianalisis dengan menggunakan analisis varians dan jika ada perbedaan yang diikuti oleh Jujur Real DifferenceTest sebesar 5%. Hasil penelitian menunjukkan bahwa pengaruh interaksi antara sumber bahan organik dengan waktu penerapan yang berbeda terhadap jumlah daun, bobot segar, kadar N, P, dan K tanah setelah pemanenan sawi. Tinggi tanaman dan panjang daun secara tunggal dipengaruhi oleh waktu aplikasi. Sumber bahan organik kotoran sapi dan jerami padi pada saat aplikasi 10 dan 15 hari sebelum penanaman bibit memberikan hasil terbaik pada jumlah daun, bobot segar sawi, N, P dan K.Keywords: tanaman sawi, sumber bahan organik, waktu aplikasi, pupuk organik
PERBEDAAN UMUR BIBIT TERHADAP PERTUMBUHAN DAN PRODUKSI PADI SAWAH (Oryza sativa L) Porong, Vikson J.
EUGENIA Vol 18, No 1 (2012)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/eug.18.1.2012.4146

Abstract

ABSTRACT   This study used a randomized block design with five standard treatments as follows: A1 (15 days), A2 (20 days), A3 (25 days), A4 (30 days), A5 (35 days). The treatment was repeated three times. The purpose of this study was to obtain the best age of the seeds in order to obtain high growth and production. The results of statistical analysis showed that there was no siginifcant difference in the number of unproductive tillers 70 days after transplanting, but this was not the case for the leaf area index; 70 days after germination there was a significant difference. A1 treatment (15 days) had the highest LAI is 4, 56. The same result was shown in the weight of 1000 grains of rice where there was a significant difference among treatments; A1 treatment (15 days) weighted 31.12. It was concluded that the age of seedlings after transplanting had a significant effect on LAI and 1000 grain weight of rice grain after harvest. Keywords: Rice, seedling, transplanting ABSTRACT   Penelitian ini menggunakan rancangan acak kelompok dengan lima taraf perlakuan sebagai berikut : A1 (15 hari), A2 (20 hari), A3 (25 hari), A4 (30 hari), A5 (35 hari). Perlakuan diulang sebanyak tiga kali. Tujuan penelitian ini untuk mendapatkan umur bibit yang tepat sehingga diperoleh pertumbuhan yang tinggi. Hasil analisis statistika menunjukkan bahwa tidak terdapat perbedaan yang nyata pada jumlah anakan yang tidak produktif 70 hari setelah pindah tanam namun pada indeks luas daun 70 hari setelah berkecambah terdapat suatu perbedaan yang nyata, terlihat pada perlakuan A1 (15 hari) memiliki ILD tertinggi yaitu 4,56. Hal yang sama terlihat pada bobot gabah 1000 butir terdapat suatu perbedaan yang nyata antara perlakuan yaitu pada perlakuan A1 (15 hari) memiliki bobot tinggi yaitu 31,12. Disimpulkan bahwa umur bibit setelah pindah tanam sangat berpengaruh pada ILD dan bobot gabah 1000 butir padi setelah panen. Kata kunci: Padi, bibit, pindah tanam
KETERTARIKAN HAMA Sitophilus oryzae PADA BERAS, JAGUNG PIPILAN KACANG TANAH, KACANG KEDELAI, DAN KOPRA Manueke, J.; Pelealu, Jantje
EUGENIA Vol 21, No 2 (2015)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/eug.21.2.2015.9706

Abstract

ABSTRACT   The purpose of research is to know the preferences of Sitophilus oryzae in rice, corn, peanut, soybeans, and copra. Experiments using observational and substitutional methods with research objeck is the interest of S. oryzae in some kind of postharvest material. Parameters measured were population density of pests, feeding damage caused by pests, and the relationship between population densty of pests and postharvest material damage caused by pests feed of S. oryzae. The results showed that S. oryzae choose food according to its main host. Population density are highest at 20.8 tail in rice, corn followed by14.0 tail, 8.2 tail in peanuts, 7,0 tail in soybeans and the lowest in copra is 4.0 tail. The results of feeding test showed that S. oryzae can not live in peanut, soybeans, and copra. Damage to feed straight to the population density S.oryzae. The amount of damage depends on the amount of feed that is higher pest populations, the greater damage in flicted on feed. Key words: preferences, Sitophylusoryzae, rice, corn, peanut, peanut soya, copra
POPULASI DAN SERANGAN Cnaphalocrosis medinalis (LEPIDOPTERA; PYRALIDAE) PADA TANAMAN PADI SAWAH DI KABUPATEN MINAHASA TENGGARA Dien, Moulwy F.; Kandowangko, Daisy S.
EUGENIA Vol 23, No 1 (2017)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/eug.23.1.2017.15413

Abstract

ABSTRACTThe experiment was conducted using a survey method at 4 locations/district in the Southeast Minahasa Regency is Belang,Tombatu, North Tombatu, and East Tombatu. Each location/districts determined three paddy fields (repeats) as a place of observation and sampling. The study lasted for 10 months ie from January to October 2015. Sampling is done diagonally to the respective fields. So one rice field consists of 5 sub-plot as a point of sampling Samples are larvae present in the leaf roll. Implementation of the sampling carried out on rice plants vegetative phase once a week for 6 weeks. The results showed that the average population of C. medinalis (per-10 clumps) on paddy rice cultivation in Southeast Minahasa Regency highest found in the location of the North Tombatu 10.99, then Eastern Tombatu 10.44, Belang 10.43 and lows in the Tombatu 0.94. Observations of percentage of pests C. medinalis highest in Southeast Minahasa Regency found in the sample locations in the North Tombatu which reached 33.95%, Belang 32.51%, Eastern Tombatu 31.86%, and the lowest in the Tombatu 4.08%. Keywords : rice, Cnaphalocrosis medinalis
EKSPLORASI BAKTERI ENTOMOPATOGENIK PENGENDALI HAMA Plutella xylostella DAN Spodoptera Sp. PADA TANAMAN KUBIS BUNGA DAN BROKOLI Salaki, Christina L.
EUGENIA Vol 17, No 3 (2011)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/eug.17.3.2011.3545

Abstract

ABSTRACT   The research aimed to explore potential entomopathogenic bacteria as biological control agent for insect pest of P. xylostella and Spodoptera sp. in cabbage and broccoli. The indigenous bacteria were explored by taking 103 samples from location around North Sulawesi. Bacteria were selectively isolated by using Ohba and Aizawa method and then identified based on morphology. Subsequently the isolates were screened by their potency to kill test insect of P. xylostella and Spodoptera sp. The isolates were able to kill ≥ 50 % test insect considered  as potential for biological control. The potential isolates were then selected and would be developed  as powder and liquid bio-pesticide through large scale production. The result of the study showed that 145 Bacillus thuringiensis isolates and 202 Bacillus cereus isolates were obtained from 103 samples. The screening of the isolates based on standard test insect for cabbage and broccoli were in progress. The potential isolates would be further selected on the basis of their pathogenicity test. Based on pathogenecity test, chosen isolates will be developed as  bio-pasticide to control insect pest of cabbage and broccoli. Keywords : Exploration, entomopathogenic bacteria, biological control, Plutella xylostella, Spodoptera Sp.
INVENTARISASI ANGGREK HUTAN DI TAMAN WISATA ALAM BATUPUTIH, KOTA BITUNG, SULAWESI UTARA Yubu, Amansyo; Pollo, H. N.; Lasut, M. T.
EUGENIA Vol 24, No 3 (2018)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/eug.24.3.2018.22790

Abstract

ABSTRACT Orchid is the largest family that occupies 7-10% of flowering plants and has around 20,000 to 35,000 species. In Sulawesi, according to experts there are around 5000 species of plants that are not known with certainty about their spread and abundance. It has been estimated that approximately 253 endemic orchid species, around 80% of the total number of orchids. In the life stage, tropical orchid plants are epiphytic, with the root system attached to the tree, but does not harm the host tree. There are also those that grow geofitis, with other terms terresterial means to grow on the ground with roots in the soil. There are also those that are saprophytic, grow on the media of dried leaves and weathered wood that has rot into humus. To inventory forest species in Batuputih Nature Park, Bitung City, North Sulawesi. The study was conducted in January - February 2018. Data collection was carried out by exploratory methods. The types of orchids that were found during exploration in TWA Batuputih, which are sorted by the type most found on the three transects: namely Dendrodium sp with a total of 12 points at a height of 40-200 masl, Phaleonopsis amabilis with a height of 52 - 102 masl as many as 3 points while, Dendrodium indivisum with a number of 1 point, which is at an altitude of 136 masl, Nervilia aragoana as many as 10 points with an altitude of 10-84 masl, and Nervilia plicata found only 1 point, at an altitude of 52 masl. Of the five types consisted of 3 genera, namely Dendrodium, Phaleonopsis, and Nervilia, and 2 types of (habitats) terrestrial and epiphytes.Keywords: orchid, type and habitat of forest orchids

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