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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
 12   13   14   15   16 
HASIL TANAMAN JAGUNG MANIS (Zea mays saccharata L.) PADA BEBERAPA DOSIS PUPUK ORGANIK Polii, Meity G.M.; Tumbelaka, Selvie
EUGENIA Vol 18, No 1 (2012)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/eug.18.1.2012.4149

Abstract

ABSTRACT   The study aimed to determine the effect of liquid organic fertilizer Super Aci application to the production of super sweet corn. Randomized group design with six fertilizer dosage treatments which are A= without fertilizer; B= N, P and K fertilizers with recommended dosages; C= organic liquid fertilizer Super Aci with 1 cc / liter of water dosage; D= organic liquid fertilizer Super Aci with 2 cc / liter of water dosage;  E = organic liquid fertilizer Super Aci with  3 cc / liter of water dosage;  and F = organic liquid fertilizer Super Aci with 4 cc / liter of water dosage. Observed variables include 1). Length of corn cob, measured at harvest; 2) corn cob diameter measured at harvest; corn cob weight measured at harvest. The data were analysed using analysis of variance and if the treatments were significantly difference then the analysis was continued with Least Significant Difference (LCD) of 5%. The results showed that the use of liquid organic fertilizer influenced the production of super sweet corn. The application of anorganic fertilizer N, P, and K also affected the growth and development of super sweet corn. The applicaton of organic fertilizer with 4 cc/water dosage gave the highest length and weight of the sweet corn. Key words: Organic fertilizer Super Aci, sweet corn crop ABSTRAK   Penelitian ini bertujuan untuk mengetahui pengaruh pemberian pupuk organik cair Super Aci terhadap hasil jagung manis. Penelitian menggunakan Rancangan Acak Kelompok terdiri dari enam perlakuan dosis pupuk, yaitu A = Tanpa pupuk, B = Pupuk an organik N,P, dan K dosis rekomendasi, C = Pupuk organik cair Super Aci dosis 1 cc / liter air, D = Pupuk organik cair Super Aci dosis 2 cc / liter air, E = Pupuk organik cair Super Aci dosis 3 cc / liter air, dan F = Pupuk organik cair Super Aci dosis 4 cc / liter air. Variabel yang diamati adalah 1) Panjang Tongkol, diukur pada saat panen, 2) Diameter tongkol, diukur pada saat panen, dan 3) Bobot Tongkol, ditimbang pada saat panen. Data dianalisis menggunakan analisis varians dan apabila terdapat pengaruh perlakuan dilanjutkan dengan uji BNT 5%. Hasil penelitian menunjukkan bahwa perlakuan pupuk organik cair Super Aci mempengaruhi hasil jagung manis. Pupuk an organik N,P, dan K serta pupuk organik cair Super Aci mempengaruhi hasil jagung manis dimana pupuk an organik N,P, dan K dosis rekomendasi serta pupuk organik cair Super Aci dosis 4 cc / liter air memberikan panjang dan bobot tongkol jagung manis tertinggi. Kata kunci : Pupuk organik Super Aci, tanaman jagung manis
INDUKSI TUNAS DARI NODUL KRISAN KULO DALAM MEDIA MURASHIGE DAN SKOOG YANG DIBERI SITOKININ Tilaar, W.; Rantung, J.; Tulung, S.
EUGENIA Vol 21, No 2 (2015)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/eug.21.2.2015.9713

Abstract

ABSTRACT The kulo chrysanthemum variety is a North Sulawesi local variety characterized by large white flowers.  The new variety was introduced barely two years ago, yet it has gained considerable popularity among flower farmers in Tomohon City as well as in Manado, Tondano, and around the Minahasa and North Minahasa regencies. The growing interest in this particular variety has increased the demand for nursery stock resulting in a shortage of supply.  The conventional plantlet propagation method i.e. one seed to grow one plant, is deemed very time consuming and has poor plantlet yield.   It is therefore necessary to explore other plantlet propagation methods that can produce high yield in a relatively short period of time. One of the best techniques for plantlet propagation is tissue culture.  The success of tissue culture in producing high plantlet yield is determined by the use of appropriate plant growth regulators. Accurate concentrations of growth regulators are vital in achieving an optimum yield.  Consequently, determining the exact concentrations is a major issue in the tissue culture method.    Cytokinins are commonly used as growth regulators in shoot and plantlet propagations.  However, different types of cytokinins may have different effects on shoot generation from the nodal explants used in particular in vitro propagations.  The kulo chrysanthemum variety has never been propagated using the nodal explant tissue culture technique and may respond differently than other varieties.  Therefore, it is essential to determine which types of cytokinins are most suited to stimulate its shoot and plantlet propagations. Keywords:  propagation, chrysanthemum nodes, murashige, skoog, BAP, kinetin, and NAA
ANALISIS DAYA SAING KOMODITI UNGGULAN SEKTOR PERKEBUNAN DI SULAWESI UTARA Mandei, Juliana R.; Benu, Olfie L.S.; Laoh, O. Esry H.; Oping, Joy M.
EUGENIA Vol 14, No 3 (2008)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/eug.14.3.2008.15149

Abstract

ABSTRACT Mandei, J.R. et. al. 2008. Competitiveness Analysis Of Plantation Strategic Sector At North Sulawesi). Eugenia 14 (3) : 361-374. The economic changing of Indonesia, especially at North Sulawesi was fast and not stable in some year latest involve some change. Rupiah fluctuation concerning US dollar and increasing price of goods, include price of production factor influence production cost, become the reason to doing a research about competitiveness of plantation commodity in North Sulawesi. The objectives of the research is to know the competitiveness of plantation commodity in North Sulawesi. The analiysis was of four commodities, that is Coconut, Vanilla, Nutmeg and Clove. Those commodities are the straregic commodities in North Sulawesi. The method used in this analysis is Domestic Resource Cost (DRC) and Effective Rate of Protection (ERP). The research was done from Juli to Agustus. The data used in the research consisted of primary and secondary data. Secondary data were obtained from local government institutions, while primary data were collected from the direct interviews with the farmers on the site. The research indicated that the farm system of Coconut, Vanilla, Nutmeg and Clove cultivated in North Sulawesi Area brought advantages both in private and social aspect. The result showed that profit value was bigger than zero, meaning that the production those commodities in this area were feasible to be increased, given the land was available and there were no alternative commodities that were more profitable. The plantation commodities in North Sulawesi had competitive and comparative advantage. The implication of ths fact showed that those commodities were feasible to be produced due to the efficiency in using the domestic resources and those commodities were feasible to export. Coefisien Domestic Resource Cost (DRC) for Coconut commodity (0.321), Vanilla (0.343), Nutmeg (0.195), and Clove (0.701) was below one and smaller than shadow price, indacated that those commodities were efficient in using domestic resource and had comparative advantage. Effective Rate of Protection (ERP) for Coconut commodity (-0.679), Vanilla (-0.657), Nutmeg (-0.805) and Clove (-0.229) was negative, indicated that those commodity were not needed effective protection and those commodity were privately profitable.   Keywords :  vanilla, coconut
IDENTIFIKASI DAN UJI PATOGENISITAS CENDAWAN ENTOMOPATOGEN LOKAL TERHADAP Leptocorisa oratorius Senewe, Emmy; Manengkey, Guntur
EUGENIA Vol 17, No 3 (2011)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/eug.17.3.2011.3539

Abstract

ABSTRACT Leptocorisa oratorius is one major pest of rice in North Sulawesi. Hence, it is necessary to control the pest. The research objective was to identify and to test pathogenicity of local  entomopathogen fungi which infected  Leptocorisa oratorius. The pathogens were collected through sampling of L. oratorius which had been infected by the fungi in the field. The pathogenic fungi was isolated using PDA medium, identified followed by inoculation for pathogenecity test.  During several sampling pest, it was found that  L. oratorius was attacked by fungal pathogens in the field. The identification revelead that the fungal pathogens were Beauveria sp and Fusarium sp. Both the fungal pathogen produced white mycelium and could only be distinguished using microscope in the laboratory. Result of pathogenicity tests showed that the two fungal pathogens caused different mortality of the L. oratorius. Mortality of  L. oratorius caused by pathogenic fungus Beauveria sp was  30.3% . Whereas, mortality of  L. oratorius caused by Fusarium sp was only 3.33%. Keywords : pathogenic fungi, entomopathogen, pathogenicity tests, L. oratorius
SERANGAN DAN POPULASI Scotinophara sp. PADA TANAMAN PADI SAWAH DI KABUPATEN BOLAANG MONGONDOW TIMUR Kila, Alex Hendra; Salaki, Ch. L.; Meray, E. R.M.
EUGENIA Vol 22, No 3 (2016)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/eug.22.3.2016.23254

Abstract

ABSTRACT The research aimed to find out the attacks and pest populations Scotinophara sp. in rice crops have been carried out in EastBolaang Mongondow from July to October 2014. The study used survey methods at several centers of rice cultivation in East Bolaang Mongondow, then set three districts as a test site where sampling. Sampling using Method Diagonal slices then select ten clump of rice plants in each sub-sample plots. Samples were taken at vegetative stage and generative phase. Things were observed in this study is the percentage of infected plants and pest populations. The results showed that the highest percentage of infected rice plants in the age of the plants 8 weeks after plants are found in Sub Tutuyan amounted to 66.66 percent and the lowest sequentially the District Nuangan and the District Kotabunan namely 39.33 percent and 11.13 percent.The highest Scotinophara sp. population density was found based on the location is district Tutuyan 10,11 tail and the lowest sequentially District Nuangan and the District Kotabunan is 1.82 and 0.96 tail. The density of the population by age of the plant, the highest in the plant age 8 mst 12.75 and the lowest sequentially 6, 4 and 2 mst is4.38, 0.06 and 0 tail.Keywords : attack, population, Scotinophara sp., rice plant
PERTUMBUHAN BIBIT SENGON (Paraserianthes falcataria) PADA BERBAGAI MEDIA TUMBUH Sukarman, Sukarman; Kainde, R.; Rombang, J.; Thomas, A.
EUGENIA Vol 18, No 3 (2012)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/eug.18.3.2012.4103

Abstract

ABSTRACT   This research was carried out in Silviculture Laboratory, Agriculture Faculty, Sam Ratulangi University, from April to June 2012. The aim of this was to examine the influence of growth media combination on height, diameter and number of leaf sengon seedling, using a Randomized Complete Design with one factor. The factor is  top soil, top soil and sekam bakar, and top soil and coco peat. Based on the research, the results of Anaslysis of Variance showed that top soil and combination of top soil and sekam bakar give most number of seedling leaf.  However, growth of height and diameter at all of combination was no significant, but there was trend that top soil give best growth of height and best growth of diameter given by the top soil and combination of top soil and sekam bakar. Keywords : growth media, sengon ABSTRAK Penelitian ini dilaksanakan di Laboratorium Silvikultur, Fakultas Pertanian, Universitas Sam Ratulangi, pada bulan April - Juni 2012. Tujuan dari penelitian ini untuk mengetahui pengaruh kombinasi media tumbuh terhadap pertumbahan tinggi, diameter dan jumlah daun bibit sengon, dengan menggunakan Rancangan Acak Lengkap (RAL) satu faktor. Faktor tersebut adalah tanah lapisan atas, campuran tanah lapisan atas dengan pasir, campuran tanah lapisan atas dengan sekam bakar  dan campuran tanah lapisan atas dengan coco peat. Berdasarkan hasil penelitian, bahwa hasil sidik ragam menunjukkan media tumbuh tanah lapisan atas dan media tumbuh campuran tanah lapisan atas dengan sekam bakar menunjukkan pertumbuhan jumlah daun bibit sengon ang terbanyak. Sedangkan pertumbuhan tinggi dan diameter pada berbagai media yang diuji tidak berbeda nyata, tapi kecendrungan pertumbuhan tinggi tanaman terbaik ditunjukan pada media tumbuh tanah lapisan atas dan pertumbuhan diameter terbaik di tunjukkan pada media tumbuh tanah lapisan atas  dan campuran tanah lapisan atas dengan sekam bakar. Kata kunci : media tumbuh, sengon
PENENTUAN WAKTU TANAM PADI SAWAH DI KABUPATEN SANGIHE DENGAN MENGGUNAKAN MODEL SIMULASI SHIERARY RICE Fattah, Farida; Rogi, J. E.X.; Toding, Mariam M.
EUGENIA Vol 21, No 3 (2015)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/eug.21.3.2015.9696

Abstract

ABSTRACT   Decline in rice production in Sangihe Island partly due to climate change and the implementation of a less precise planting time. Rice Shierary  model was used to predict the timing of planting paddy and has advantages in time and cost savings. This study aims to determine the exact time of planting in paddy rice crops in the district of South Manganitu, North Tabukan and Tamako, as well as to determine whether the results of the simulation model Shierary Rice together with the results obtained from the Central Bureau of Statistic Sangihe Islands. Input model consists of solar radiation, rainfall, temperature and humidity, field capacity, permanent wilting point, varieties, irrigation, nitrogen fertilization, longitude and latitude of the study area. While the output was paddy rice yield potential. It can be concluded that (a) the appropriate planting time of paddy in the South Manganitu namely in June with a potential yield of 4.25 tonha-1 and March with a potential yield of 3.88 tonha-1. (b) the appropriate planting time of paddy in the  North Tabukan namely in June with a potential yield of 4.27 tonha-1 and March with a potential yield of 3.62 tonha-1. (c) the appropriate planting time of paddy in Tamako ie in March with a potential yield of 3.58 tonha-1 and February with a potential yield of 3.28 tonha-1. (d) the yield of rice field paddy with the determination of planting time by using the model of Shierary Rice nearing/line with productivity results which obtained by the Central Statistics Agency (BPS) Sangihe Islands. Keywords: planting, paddy, simulation models, Shierary Rice
SERANGAN DAN POPULASI Scotinophara sp. PADA TANAMAN PADI SAWAH DI KABUPATEN BOLAANG MONGONDOW TIMUR Kila, Alex Hendra; Salaki, Ch. L.; Meray, Elisabeth R.M.
EUGENIA Vol 22, No 3 (2016)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/eug.22.3.2016.14105

Abstract

ABSTRACT   The research aimed to find out the attacks and pest populations Scotinophara sp. in rice crops have been carried out in EastBolaang Mongondow from July to October 2014. The study used survey methods at several centers of rice cultivation in East Bolaang Mongondow, then set three districts as a test site where sampling. Sampling using Method Diagonal slices then select ten clump of rice plants in each sub-sample plots. Samples were taken at vegetative stage and generative phase. Things were observed in this study is the percentage of infected plants and pest populations. The results showed that the highest percentage of infected rice plants in the age of the plants 8 weeks after plants are found in Sub Tutuyan amounted to 66.66 percent and the lowest sequentially the District Nuangan and the District Kotabunan namely 39.33 percent and 11.13 percent.The highest Scotinophara sp. population density was found based on the location is district Tutuyan 10,11 tail and the lowest sequentially District Nuangan and the District Kotabunan is 1.82 and 0.96 tail. The density of the population by age of the plant, the highest in the plant age 8 mst 12.75 and the lowest sequentially 6, 4 and 2 mst is4.38, 0.06 and 0 tail. Keywords : attack, population, Scotinophara sp., rice plant
INFILTRASI DAN PERMEABILITAS PADA TANAH REKLAMASI TAMBANG EMAS Tambunan, Liskawani; Husain, Jailani; Supit, Joice M.J.
EUGENIA Vol 24, No 1 (2018)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/eug.24.1.2018.21649

Abstract

ABSTRACT Infiltration and permeability are soil parameters that can be used to describe the extent of land damage caused by the mining process. In accordance with Law No. 4.of 2009 on Mineral and Coal Mining, that reclaiming mining land is obligatory for every company that manages it. This study aims to determine the rate of infiltration and permeability on the reclaimed gold mined land. The research was conducted at the gold mining location of Bakan and Lanut. Infiltration measurements were carried out on straight line transect along the foot slope to the top slope. Measurements were made at two meter distance in 5 cm depth along the transect line direction using the Guelph Permeameter. Hydraulic conductivity was calculated from infiltration data. This research revealed that reclamation has positive effect in increasing of infiltration rate and permeability. Crop dan root growth should have contributed in increasing soil organic matter, root and microbial activities, which leads to improve soil texture and soil structure.Keywords: infiltration, permeability, reclaimed
APLIKASI FORMULASI PUPUK ORGANIK UNTUK EFISIENSI PENGGUNAAN PUPUK ANORGANIK NPK PHONSKA PADA TANAMAN JAGUNG MANIS (Zea mays saccharata Sturt) Tumewu, P.; Montolalu, M.; Tulungen, A. G.
EUGENIA Vol 23, No 3 (2017)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/eug.23.3.2017.18961

Abstract

ABSTRACT The aim of this research is to know the effect of organic fertilizer formulation and NPK Phonska fertilizer on the growth and yield of sweet corn, and to get organic fertilizer formulation for the efficiency of inorganic fertilizer NPK Phonska in increasing the yield of sweet corn. The factorial experiment was designed using a Randomized Block Design consisting of two factors. Factor I (A) = Formulation of Organic Fertilizer, consisting of A1 = Water hyacinth, Cow Manure, chicken manure, A2 = Hydrilla verticillata, cow dung, chicken manure, A3 = Kirinyuh, cow dung, chicken manure. Factor II (B) = Phonska fertilizer, Consist of B1 = 25% Phonska, B2 = 50% Phonska, B3 = 75% Phonska, B4 = 100% Phonska. Each treatment was repeated three times to obtain 36 experimental plots. Response variables observed included: Plant dry weight, Length of cob, Cob diameter, Weight of cob, measured at harvest. Data were analyzed using variance analysis and if there was effect of treatment continued by using Test of Honest Real Difference (BNJ) at 5% test level. The results showed that the interaction between organic fertilizer formulation and NPK phonska significantly affect the diameter of cob and sweet corn cob weight. The dry weight of sweet corn plant is influenced by organic fertilizer formulation. Formulation of organic fertilizer Hydrilla verticillata + cow dung + chicken dung 20 ton / ha dose able to reduce the dose of NPK Phonska at half of the recommended dosage.Keywords: formulation of organic fertilizer, sweet corn yield, Phonska  ABSTRAK Penelitian bertujuan untuk mengetahui pengaruh interaksi formulasi pupuk organik dan pupuk NPK Phonska terhadap pertumbuhan dan hasil jagung manis, serta mendapatkan formulasi pupuk organik untuk efisiensi pupuk anorganik NPK Phonska dalam meningkatkan hasil jagung manis. Percobaan factorial  dirancang menggunakan Rancangan Acak Kelompok yang terdiri dari dua faktor. Faktor I (A) = Formulasi Pupuk Organik, terdiri dari A1 = Eceng gondok, Kotoran sapi, kotoran ayam, A2 = Hydrilla verticillata, kotoran sapi, kotoran ayam, A3 = Kirinyuh, kotoran sapi, kotoran ayam. Faktor II(B) =  Pupuk Phonska, Terdiri dari B1 = 25% Phonska, B2 = 50% Phonska, B3 = 75% Phonska, B4 = 100 % Phonska. Setiap perlakuan diulang tiga kali sehingga diperoleh 36 petak percobaan. Variabel respons yang diamati  meliputi : Berat kering tanaman, Panjang tongkol, Diameter tongkol, Bobot tongkol, diukur pada saat panen. Data  dianalisis menggunakan  analisis ragam dan jika terdapat pengaruh perlakuan dilanjutkan dengan menggunakan Uji Beda Nyata Jujur (BNJ) pada taraf uji 5 %. Hasil penelitian  menunjukkan bahwaInteraksi antara formulasi pupuk organik dan NPK phonska berpengaruh nyata terhadap diameter tongkol dan  bobot tongkol jagung manis. Bobot kering tanaman jagung manis dipengaruhi oleh  formulasi pupuk organik.  Formulasi pupuk organik Hydrilla verticillata+ kotoran sapi+kotoran ayam dosis 20 ton/ha mampu menurunkan dosis NPK Phonska setengah dari dosis rekomendasi.Kata kunci: formulasi pupuk organik, hasil jagung manis, Phonska

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