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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 6 Documents
 1 
Search results for , issue "Vol 21, No 2 (2015)" : 6 Documents clear
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
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
PREFERENSI PADA MEDIA PENELURAN DAN PEMBERIAN PAKAN TERHADAP PRODUKSI TELUR SEXAVA NUBILA STAL. (ORTHOPTERA; TETTIGONIDAE) Buambitun, Dinda G.; Salaki, Ch. L.; Manueke, J.; Dien, M. F.
EUGENIA Vol 21, No 2 (2015)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/eug.21.2.2015.9184

Abstract

ABSTRACT The study aims to determine the effect of the combination of feeding and spawning media against S. nubila egg productivity has been carried out in the Laboratory of Biological Plantation Office, Village Lobbo, North Beo District of Talaud Islands. held for 4 months ie from January to April 2015. Research using completely randomized design (CRD) with treatments that (A) Media dry sand, (B) Media moist sand (C) Media dry soil, (D) Media soil moist, (E) Media mix of soil and sand to dry, (F) Media mixture of soil and sand moist. (G) Each treatment was repeated 4 times. Testing feeding consists of treatment (A) Coconut leaves, (B) Banana leaves, (C) Combination of palm leaves + banana leaves, (D) Reed.  The results showed that the highest egg production was found in Coconut leaves + combination treatment of Banana leaves which reached an average of 50.13 grains followed by treatment Coconut leaves of the grain 36.25, banana leaves 27.11 grain treatment, and treatment reeds 0, 06 grains. Observation of oviposition or the laying of eggs by female imago highest turns found in moist sand treatment media, reaching an average of 31.71 grains, kemuadian consecutive dry sand media average of 25.47 grains, sand + soil moist average of 23 , 64 grain, moist soil on average 21.16 grains, dry ground Sand + average 18.66 and the lowest point on dry land media average of 15.7 grains Keywords: Sexava nubila, Preferences and production of egg ABSTRAK Penelitian bertujuan untuk mengetahui pengaruh pemberian kombinasi pakan dan media peneluran terhadap produktifitas telur S. nubila telah dilaksanakan di Laboratorium Hayati Dinas Perkebunan, Desa Lobbo, Kecamatan Beo Utara Kabupaten Kepulauan Talaud. dilaksanakan selama 4 bulan yakni sejak bulan Januari sampai dengan April 2015. Penelitian menggunakan metode Rancangan Acak Lengkap (RAL) dengan perlakuan yaitu (A) Media pasir kering, (B) Media pasir lembab (C) Media tanah kering, (D) Media tanah lembab, (E) Media campuran tanah dan pasir kering, (F) Media campuran tanah dan pasir lembab. (G) Masing-masing perlakuan diulang sebanyak 4 kali. Pengujian pemberian pakan terdiri dari perlakuan (A) Daun kelapa, (B) Daun pisang, (C) Kombinasi daun kelapa + daun pisang, (D) Alang-alang.  Hasil penelitian menunjukkan bahwa peletakkan telur oleh imago betina ternyata tertinggi dijumpai pada perlakuan media pasir lembab yakni mencapai rata-rata 31,71 butir, kemudian berturut-turut media pasir kering rata-rata 25,47 butir, Pasir + Tanah lembab rata-rata 23,64 butir, Tanah lembab rata-rata 21,16 butir, Pasir + tanah kering rata-rata 18,66 butir dan terendah pada media tanah kering rata-rata 15,7 butir.  Pengamatan terhadap uji pemberian pakan  menunjukkan bahwa produksi telur tertinggi dijumpai pada perlakuan kombinasi pakan daun kelapa + daun pisang yakni mencapai rata-rata 50,13 butir kemudian diikuti oleh perlakuan daun kelapa 36,25  butir, perlakuan daun pisang 27,11 butir, perlakuan alang-alang 0,06 butir, dan tanpa pakan (kontrol) 0,00 butir. Kata kunci : Sexava nubila, preferensi dan produksi telur
PEMBERIAN KOMPOS PADA TANAH BEKAS TAMBANG DENGAN INDIKATOR TANAMAN SAWI (BRASSICA CHINENSIS L) Karamoy, Theffie Lientje; Kumolontang, W. J.N.; Rondonuwu, 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.21.2.2015.9711

Abstract

ABSTRACT   This research aimed to determine the effects of compost applications on ex-mining lands by using chinese cabbage as indicator. The experiments were conducted at the Faculty of Agriculture greenhouse and the soil and compost analysis were done at the Soil Chemistry and Fertility Laboratory for a duration of two months. The research employed a Completely Randomized Design method with 5 treatments repeated 3 times to get 15 experimental units. The analysis on ex-mining soil revealed that it contained only trace amounts of soil nutrients N, P, and K. The laboratory analysis on the compost sample resulted in a C/N ratio of 11.87 which suggested that the compost was mature and ready to be used. The Analysis of Variance on research data showed that compost applications did not affect plant height between treatments at each weekly observation, and similarly did not affect leaf quantity and fresh weight at harvest time.  However, the research found that the compost applications tended to improve plant height, leaf quantity, and fresh weight of plants at harvest time.  The minimal effect of compost applications between treatments suggested that the plants did not utilized the nutrients supplied by the compost in their early stages of development.  Moreover, it was also suspected that the compost applications had not been sufficient in supplying the soil nutrients needed by the plants to ensure proper growth which ultimately affected the fresh weight of the plants at harvest time. Keywords: compost, ex-mining land
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
MUSUH ALAMI KUTU PUTIH Paracoccus marginatus Williams & Granara de Willink, (HEMIPTERA: PSEUDOCOCCIDAE) PADA TANAMAN PEPAYA DI MINAHASA UTARA Tairas, Robert W.; Tulung, Max; 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.21.2.2015.9705

Abstract

ABSTRACT The potential of biological control using natural enemies locally has a huge opportunity, therefore, carried out a study in order to determine the types of natural enemies of both predators, parasitoids and pathogens on the mealybug P. marginatus live in papaya plants in North Minahasa area. The study found that in Minahasa north, there are natural enemies comprised of predators, pathogens and parasitoids, among others, Chilocorus sp. Scymnus sp. (Coleoptera), Oecophylla smaragdina and some of the family Formicidae (Hymenoptera), earwig (Dermaptera), mites (Acari) and Tetragnatha sp, Tetragnatidae; Plexippus sp. Telamonia sp; Lycosidae (Aranea). At the parasitoid was found only Acerophagus papayae, family Encyrtidae (Hymenoptera), while natural enemies of pathogen is Fungus Keywords : P. marginatus, mealybugs, natural enemies, predators, parasitoid and pathogen

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