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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
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POTENSI EKSTRAK DAUN DAN BUAH Excoecaria agallocha L. TERHADAP HAMA Crocidolomia pavonana F. PADA TANAMAN SAWI PUTIH Melo, Aneke H.; Maramis, R. T.D.; Warouw, J.
EUGENIA Vol 21, No 2 (2015)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/eug.21.2.2015.9708

Abstract

ABSTRACT   The purpose of this study is to determine the potential of the extracts of leaves and fruit E. agallocha, to the larvae of C. pavonana mortality and to determine the right concentration / dosage extracts of leaves and fruits E. agallocha in controlling of pests C. pavonana. This research was carried out by several phases: 1) exploration of the source plant material extract; 2) Preparation of feed crops; 3) Taking a test insect; 4) Extraction of plant material source extract; and 5) Extracts application. This research was conducted at Plantation Rurukan Village sub district of East Tomohon, Tomohon city for taking the testing insects and feed maintenance ; Laboratory of Microbiology and Plant Pathology, Department of Plant Pests and Diseases, for the extraction of plant material and extracts application in Tomohon and exploration of extracts of plant material sources in the Rerer village sub district of Kombi,  District of Minahasa. The results of the Research are leaves and fruit extract E. agallocha can cause mortality of larvae of C. pavonana. With symptoms of larval mortality after treatment of leaves and fruit extracts of E. agalloca lanta is the larvae colored in yellowish pale then turned into brown to black. E. agalloca leaves and fruit has potential as an ingredient vegetable insecticides to control larvae of C. pavonana with concentration at the level of 0.04% is good at treatment leaf extract and fruit extract treatment as well. Key words: extract E. agallocha, pests C. pavonana, white mustard plants
RESPON PERKECAMBAHAN BENIH SENGON LAUT (Paraserianthes falcataria (L.) Nielsen) TERHADAP ALELOPATI DAUN DAN RHIZOME ALANG-ALANG (Imperata cylindrica L.) Pangemanan, Euis F.S.; Ratag, Semuel P.
EUGENIA Vol 23, No 1 (2017)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/eug.23.1.2017.15414

Abstract

ABSTRACT   A plant species can release a toxic compound which can inhibit the growthof other plant species.  The success of planting certain tree species, both inside and outside the forest area with agroforestry system can be affected by allelopathy of other plant species. The objective of this research was to study the response of sengon laut (Paraserianthes falcataria (L.) Nielsen) seed germination on cogongrass (Imperata cylindrica L.) leaves and rhizomes allelopathy. The experimental design was a randomized complete design with four replicates.  The treatments were leaves and rhizomes extracts of cogongrass, and water as control.  The results showed that the extract concentration of 20 % (weight/volume), then the sengon laut seed germination was not affected by the extracts. Keywords:  sengon laut, cogongrass, allelopathy, seed germination
INTENSITAS DAN LAJU INFEKSI PENYAKIT KARAT DAUN Uromyces phaseoli PADA TANAMAN KACANG MERAH Manengkey, Guntur S.J.; Senewe, Emmy
EUGENIA Vol 17, No 3 (2011)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/eug.17.3.2011.3546

Abstract

ABSTRACT   Rust leaf on red bean is major desease in the area of Tonsewer, Toure dan Tumaratas village. The aim of the study was to determine the intensity and infection rate of rust disease on red bean at  Tonsewer, Toure and Tumaratas village, The method used was survey by drawing a diagonal line at four points and one point in the center of each farm. Hence,  there were five points that  were used for sampling area for calculating the intensity and the infection  rate caused by  leaf rust Uromyces phaseoli. The result showed that red bean farm  in the village of Tonsewer, Toure and Tumaratas had been infected by rust disease caused by the fungus Uromyces phaseoli . The average of attacking intensity was 62.29% in Tonsewer. Whereas,  Toure and Tumaratas were 61.71% and 62.29 respectively. The average of  infection rate was 0.239 per unit per day in the Tonsewe. While in the Toure and Tumaratas were  0.189  and 0.208 per unit per day respectively . Keyword : Intensity and infection rate,Red Bean
IDENTIFIKASI JENIS SERANGGA HAMA DAN TINGKAT KERUSAKAN PADA Diospyros Celebica Bakh. Mokodompit, Hendra S.; Pollo, H. N.; Lasut, M. T.
EUGENIA Vol 24, No 2 (2018)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/eug.24.2.2018.22794

Abstract

ABSTRACT Diospyros celebica Bakh is luxury wood which is endemic to Sulawesi.  The Environment and Forestry Research and Development Istitute of Manado is implementing an ex situ conservation of D. celebica through planting it in  The Arboretum since  2012.  The D. celebica stand at the BP2LHK Arboretum in Manado was attacked by insects on the leaves, the leaf part is gnawed from the edge to the vein and midrib. The purpose of this study is to identify the types of insects which is pest to leaves of D celebica and calculate the level of damage caused. The study was conduct on the plot of D. celebica stands by census observation. Two types of insects were identified, namely leaf cutting bees (Megachile sp) and caterpillars from the order of Lepidoptera. The main insects that damage the leaves of D. celebica is leaf-cutting bee (Megachile sp) because this insect has no natural predators. The caterpillars of the order lepidóptera have a number of natural predators, such as Pycnonotus aurigaster, Centropus bengalensis, Phaenicophaeus calyorhynchus, Hypothymis azurea, and Oecophylla smaragdina. The results showed that the frequency of insect attacks on D. celebica leaves was 97.44%, there are 38 of 39 plant observed were attacked by insect. The intensity of insect attacks on stands of D. celebica is 11.54%, this result shows that pest control in stands is not yet necessary, since of the intensity of the attack is including minor damage.Keywords: insect, pests, Diospyros celebica Bakh., Intensity of damage
WILAYAH SURPLUS DAN DEFISIT AIR DI SENTRA PRODUKSI PADI SULAWESI UTARA MENGGUNAKAN MODEL NERACA AIR Panelewen, J. H.; Rogi, J. E.X.; Rotinsulu, W.
EUGENIA Vol 18, No 3 (2012)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/eug.18.3.2012.4100

Abstract

ABSTRACT   The research was conducted in the field and laboratory. Fieldwork in paddy rice production center was done to collect geographical coordinates while data analysis was conducted in the Laboratory of Ecosystem Modelling, Faculty of Agriculture, Sam Ratulangi University. Laboratory analysis was done to validate water balance model and to develop water surplus dan water shortage maps. This research was done during August 2012. Data collection included identification, inventory and data analysis. Then it continued with developing digital maps using Geographical Information Systems (GIS) for water balance model. Model inputs included climatic variables (rainfall, temperature, humidity, sunlight, and windspeed), ground water content and leaf area index. Parameter inputs included crop variety and location. Model simulation indicated that rainfall trend in North Sulawesi has increased especially in Januari, April dan November. Conversely, a decrease rainfall trend was ocurred in February and September. Spatial map showed that water surplus ocurred in Minahasa Selatan, Bolaang Mongondow, Bolang Mongondow Utara and Bolaang Mongondow Selatan. On the other hand, water shortage in North Sulawesi was experienced in October. Keywords : geographical information systems, water balance model   ABSTRAK   Penelitian ini dilakukan di lapangan dan laboratorium. Kerja lapangan di sentra produksi padi dilakukan untuk mengumpulkan data koordinat geografis sedangkan data analisis dilakukan di Laboratorium Model Ekosistem, Fakultas Pertanian, Universitas Sam Ratulangi. Analisis Laboratorium dilakukan untuk memvalidasi model neraca air dan untuk mengembangkan peta kelebihan dan kekurangan air. Penelitian ini dilakukan selama bulan Agustus 2012. Pengumpulan data meliputi identifikasi, inventarisasi dan analisis data. Kemudian dilanjutkan dengan mengembangkan peta digital dengan menggunakan Sistem Informasi Geografis (SIG) untuk model neraca air. Model input meliputi variabel iklim (curah hujan, suhu, kelembaban, sinar matahari, dan kecepatan angin), kadar air tanah dan indeks luas daun. Parameter input meliputi berbagai varietas tanaman dan lokasi. Model simulasi menunjukkan bahwa curah hujan tren di Sulawesi Utara telah meningkat terutama pada Januari, April dan November. Sebaliknya, penurunan curah hujan tren yang terjadi pada bulan Februari dan September. Spasial peta menunjukkan bahwa surplus air terjadi di Minahasa Selatan, Bolaang Mongondow, Bolang Mongondow Utara dan Bolaang Mongondow Selatan. Di sisi lain, kekurangan air di Sulawesi Utara dialami pada bulan Oktober. Kata kunci: sistem informasi geografis, model neraca air
KEANEKARAGAMAN JENIS PARASITOID TRICHOGRAMMATIDAE HAMA Helicoverpha armigera BERDASARKAN KARAKTER MORFOLOGI PADA TANAMAN JAGUNG DI SULAWESI UTARA Maramis, R. T.D.; Kandowangko, D. S.
EUGENIA Vol 19, No 1 (2013)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/eug.19.1.2013.8378

Abstract

ABSTRACT   The research was aimed to identify parasitoid, to know the morphology characters to count the level parasitisation of parasitoid, to the region of parasitoid distribution and to make a key parasitoid identification. Sampling eggs of H. armigera in order to get a type of parasitoid Trichogrammatidae has carried out in the regencies of Minahasa, South Minahasa and Bolaang Mongondow. Each regency has sampled in three sub-districts for getting the egg samples of H. armigera, which were collected at the age plant of 45-52 days after planting. Sampling result of egg H. armigera has found one type of parasitoid Trichogrammatidae. Based on the identification of parasitoid morphology, i.e: the front wings, antenna, the insect, colors, parasitoid in which parasited the eggs of H. armigera is Trichogrammatoidea sp.. Body color of parasitoid Trichogrammatoidea sp.. was tawny, and the abdominal was more dark. Parasitoid Trichogrammatoidea sp. spread on the planting sub-districts. Parasitization of parasitoid was still low, only ranging from 5.59 to 21.03 percent, the highest and lowest values found in Bolaang Mongondow (Poigar and Bolaang subdistricts). Keywords : type of parasitoid Trichogrammatidae, parasitisation of  parasitoid   ABSTRAK Penelitian bertujuan mengidentifikasi parasitoid, mengetahui karakter morfologi, menghitung tingkat parasitisasi parasitoid, mengetahui wilayah penyebaran parasitoid dan membuat kunci identifikasi parasitoid. Pengambilan contoh telur H. armigera untuk mendapatkan jenis parasitoid Trichogrammatidae telah dilaksanakan di Kabupaten Minahasa, Minahasa Selatan dan Bolaang Mongondow. Setiap wilayah Kabupaten diambil 3 kecamatan untuk pengambilan contoh telur H. armigera. Contoh telur H. armigera dilaksanakan pada umur tanaman 45-52 hst. Hasil pengambilan contoh telur H. armigera telah ditemukan satu jenis parasitoid Trichogrammatidae. Berdasarkan identifikasi karakter morfologi parasitoid yakni sayap depan, antenna, warna tubuh serangga, maka parasitoid yang memarasit telur H. armigera adalah Trichogrammatoidea sp.. Warna tubuh parasitoid Trichogrammatoidea sp. armigera berwarna kuning kecoklatan dan bagian abdomen berwarna lebih gelap.  Parasitoid Trichogrammatoidea sp. menyebar pada semua pertanaman jagung di ketiga wilayah kabupaten.  Parasitisasi parasitoid masih tergolong rendah hanya berkisar antara 5,59-21,03%, wilayah yang tertinggi dan terendah ditemukan di Bolaang Mongondow (di Kecamatan Poigar dan  Bolaang. Kata kunci : jenis parasitoid Trichogrammatidae, parasitisasi parasitoid
RESPON PAKLOBUTRAZOL TERHADAP PERTUMBUHAN DAN HASIL PADI LOKAL WESEL Runtunuwu, Semuel D.; Sumampouw, D. M.F.; Tumewu, Pemmy; Mamarimbing, Rinny; Rengkung, R. M.N.
EUGENIA Vol 22, No 3 (2016)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/eug.22.3.2016.15104

Abstract

ABSTRACT   Response of rice to paclobutrazol (PBZ) depends on plant variety. This experiment were done to know the influence of PBZ to growth and yield of local rice Wesel using randomized block design (RBD). The treatment consist of four dosages of PBZ with four replications. The results showed PBZ treatmant enhance of grain yield per plant, number of productive tillers (NPT),  weight of 1.000 grains, crop growth rate (CGR), and leaf chlorophyll content. Keywords: Paclobutrazol (PBZ), crop growth rate (CGR), chlorophyll, yield, local rice
KONSENTRASI PACLOBUTRAZOL DAN PEMISKINAN MEDIA PADA PELESTARIAN IN VITRO TANAMAN KRISAN (Chrysanthemum morifolium Ramat) Demmassabu, Sofia; Kojoh, Diane A.; Arsyad, Yulie P.
EUGENIA Vol 17, No 2 (2011)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/eug.17.2.2011.3537

Abstract

ABSTRACT   Research was conducted  at biotechnology laboratory of Agriculture Faculty, Samratulangi University Manado since July 2009 until October 2009. The objective was to assess the effect of Paclobutrazol usage and MS media reducing in chrysan perpetuation through in vitro. The research was  designed in randomized complete designed  using factorial. First factor was basic media concentration of Murashige and Skoog with 2 concentration : M1 = 100% MS,  M2 = 10% MS and second factor was paclobutrazol with 4 concentration s which were  P0 = 0 ppm paclobutrazol (control), P1 = 1.0 ppm, P2 = 1.5 ppm, P3= 2.0 ppm,  and P4 = 2.5 ppm paclobutrazol.  The treatments were repeated ten times.  Observed variables were crysan tall, the amount of root and buds that was measured at the end of research. The result showed that 100 % MS media, addition of paclobutrazol obviously produced shorter chrysan, and less amount of roots and buds compare to media without paclobutrazol. Media with 10 % MS combine with   paclobutrazol 2.0 ppm produced shorter chrysan than media without paclobutrazol. The amount of roots and buds in media with paclobutrazol were not different with media  without paclobutrazol. Key words : Paclobutrazol, crysan
PERTUMBUHAN DAN PRODUKSI DUA VARIETAS KENTANG (Solanum tuberosum L.) PADA DUA KETINGGIAN TEMPAT Mailangkay, Benjamin H.; Paulus, Jeanne M.; Rogi, Johannes E.X.
EUGENIA Vol 18, No 2 (2012)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/eug.18.2.2012.3954

Abstract

ABSTRACT   This study aimed to examine the growth and production of potato crop varieties and varieties Granola Supejhon on two altitude, which is 750 m above sea level and 1200 m above sea level, studies using randomized block design with two factors. The first factor is the Granola variety and Supejhon. The second factor is the altitude, which is 750 m above sea level and 1200 m asl. The results of this study indicate that the rate Crop Growth Rate (LTT) and the Tuber Growth Rate (LTU) of Supejhon Granola varieties have a much higher altitude 1200 m asl (Modoinding) compared with altitude 750 m asl (Langowan). The altitude effect on the number of tubers / plant and production / plot, otherwise varieties had no effect on the number of tubers / plant, weight of tubers / plot and production / plot, and there is no interaction between variety and altitude. At altitude 750 m asl, both varieties yield an average production of tubers / plot of 1343.20 g (1.34 kg), whereas the altitude of 1200 m asl generate 7462.18 g (7.46 kg). Based on the average, the weight of tubers / plant and production / plots at very low reached by the two varieties of Granola and Supejhon well, so that the two varieties are not recommended to be cultivated at altitude 750 m above sea level. Further research is needed to examine other potato varieties that can be cultivated in areas with altitude of 750 m asl. Keywords: Potato, growth, production, level altitudes ABSTRAK Penelitian ini bertujuan untuk mengkaji pertumbuhan dan produksi tanaman kentang varietas Granola dan varietas Supejhon pada dua ketinggian tempat, yaitu 750 m dpl dan 1200 m dpl, penelitian  menggunakan Rancangan Acak Kelompok dengan dua faktor.  Faktor pertama adalah varietas  Granola dan Supejhon.  Faktor kedua adalah ketinggian tempat, yaitu 750 m dpl dan 1200 m dpl. Hasil penelitian ini menunjukkan bahwa Laju Tumbuh Tanaman (LTT) rata-rata dan Laju Tumbuh Umbi (LTU) rata-rata varietas Granola dan Supejhon memiliki nilai yang jauh lebih tinggi pada ketinggian tempat 1200 m dpl (Modoinding) dibandingkan dengan ketinggian tempat 750 m dpl (Langowan).  Ketinggian tempat berpengaruh terhadap jumlah umbi/tanaman dan produksi/petak, sebaliknya varietas tidak berpengaruh terhadap jumlah umbi/tanaman, bobot umbi/petak dan produksi/petak, serta tidak terdapat interaksi antara varietas dan ketinggian tempat. Pada ketinggian tempat 750 m dpl, kedua varietas menghasilkan rata-rata produksi umbi/petak sebesar 1343,20 g (1,34 kg), sedangkan pada ketinggian tempat 1200 m dpl menghasilkan 7462,18 g (7,46 kg).  Berdasarkan nilai rata-rata, bobot umbi/tanaman dan produksi/petak yang sangat rendah dicapai oleh kedua varietas baik Granola maupun Supejhon, sehingga kedua varietas tersebut tidak dianjurkan untuk dibudidayakan pada ketinggian 750 m dpl.  Perlu dilakukan penelitian lanjutan untuk menguji varietas kentang lainya yang dapat dibudidayakan pada daerah dengan ketinggian tempat 750 m dpl. Kata kunci: Kentang, pertumbuhan, produksi, ketinggian tempat
PENGGUNAAN PENANDA MOLEKULER RANDOM AMPLIFIED POLYMORPHIC DNA (RAPD) UNTUK ANALISIS KERAGAMAN GENETIK KELAPA WEST AFRICAN TALL (WAT) Lengkong, Edy F.; Runtunuwu, S. D.
EUGENIA Vol 11, No 3 (2005)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/eug.11.3.2005.7391

Abstract

ABSTRACT Lengkong, E.F. and S.D. Runtunuwu. 2005. Use of Molecular Marker Random Amplified Polymorphic DNA (RAPD) to Genetic Diversity Analysis of West African Tall (WAT) Coconut. Eugenia 11 (3):210-217.   Information on genetic diversity of crop gemplasm has several important implications for plant breeder. Among others is to help the breeders to decide what sources to cross so as to making new genetic combination. The use of molecular marker to genetic diversity analysis on DNA level is usefull, because it provides an opportunity to more precisely measure genetic relationships as well is not affected by the environment. The objective of this research was to analyze genetic diversity of West African Tall (WAT) using molecular marker RAPD. Five arbitrary 10-mer primers were used to amplify total DNA genom, and to generate 44 band DNA with 26 band or 59 % were polymorphic band. It was revealed that genetic diversity within population of WAT coconut was 14 %. Based on cluster analysis, at the genetic similarity 85% or genetic diversity 15 % the population was separated on three clusters. This research concluded that the population of WAT coconut grown from open pollinated seeds has different genotype one each others. Keywords: West African Tall (WAT), Coconut, RAPD

Page 7 of 20 | Total Record : 198

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