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Meldi T.M. Sinolungan
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INDONESIA
COCOS
Published by Universitas Sam Ratulangi
ISSN : -     EISSN : 27150070     DOI : 10.35791
Core Subject : Agriculture,
Agriculture, Biological Sciences & Forestry
Jurnal ini memuat materi yang berkaitan dengan Pertanian. Menyangkut Tanah, Budidaya Pertanian, Proteksi Tanaman, Teknologi Pertanian dan Sosial Ekonomi Pertanian
Arjuna Subject : Ilmu Pertanian dan Biologi (Semua) - Ilmu Pertanian dan Biologi (Lain-Lain)
Articles 14 Documents
 1   2 
Search results for , issue "Vol. 10 No. 3 (2018)" : 14 Documents clear
MODIFIKASI DAN UJI TEKNIS ALAT PEMBERSIH BIJI JAGUNG DENGAN KOMBINASI SISTEM AYAKAN BERGOYANG DAN HEMBUSAN ANGIN Kahar Drakel; Freeke Pangkerego; Dedie Tooy
COCOS Vol. 10 No. 3 (2018)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/cocos.v1i1.22199

Abstract

Abstract Corn (Zea mays L) is one of the cereal plants that grows almost all over the world and is classified as a species with large genetic variability. In Indonesia corn is the second staple food after rice. Besides that, corn can be used as animal feed ingredients and industrial raw materials (Fadhullah Muhammad 2016). Sieving is the separation of the mixture of solid particles that have various sizes of material using a sieve. The sieving process is also used as a cleaning tool, the separator of waste which is different in size from the raw material. The purpose of this study was to modify and technically test the corn seed cleaning system using the electro motor sway and different air flow speeds using a fan. This research has been carried out in the Agricultural Engineering Workshop, Agriculture Technology Department of the Faculty of Agriculture Unsrat for 3 months from May to July 2018, including the making of sieving tools, implementation of sieving experiments and analysis of research data. This study includes the modification and technical testing of corn seed cleaning equipment with a combination of swaying and wind blowing sieve systems, using 3 different air flow rates from different fans with 3 (three) replications, namely: 1. Air flow velocity 1.3 m / s ( A), 2. Air flow velocity 2.1 m / s, (B), and 3.Air flow velocity of 3.5 m / s (C). The speed of air flow in this study is not the same level, only adjusting the speed of the fan (fan) made by the factory  Keywords: Modification of tools, sway sieve system, wind gusts
KOMUNITAS BURUNG DI HUTAN LINDUNG GUNGUNG MASARANG Otis Warwer; Johny S. Tasirin; Wawan Nurmawan
COCOS Vol. 10 No. 3 (2018)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/cocos.v1i1.22200

Abstract

ABSTRACT According to Dias (2006) Bird communities are groups of individuals of several species who live together in the same space and time. Complex and heterogeneous vegetation structures will increase diversity in a habitat, which is thought to increase the diversity of birds in a community. The purpose of this study was to study bird communities in Gunung Masarang Protection Forest, Tomohon City. The study was conducted in June to July 2018 in the Mount Masarang Protection Forest. Data retrieval is done by meode count points (count points). The results showed that there were 47 species of birds from 24 families in Gunung Masarang Protection Forest, with 19 species of Endemic Sulawesi and 2 species protected by LHK 92/2018 Candy with medium species diversity H '= 2.66 and evenness value E = 0.61. Keywords: Birds, Bird Communities, Mount Masarang Protected Forest
PENGARUH MEDIA TANAM TERHADAP PERTUMBUHAN SEMAI Aquilaria malaccensis Lamk. DI PERSEMAIAN Rinna Mamonto; Johan A. Rombang; Marthen Th. Lasut
COCOS Vol. 10 No. 3 (2018)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/cocos.v1i1.22201

Abstract

Abstract The increasing of market demand along with high selling price of agarwood encouraged people to get more production by cutting down the agarwood-producing trees. As a result, the population of gaharuproducing trees become decrease and needs to be conserved. Conservation efforts is collateral with production continuity to anticipating market demand can started from planting and cultivating. One of them is the provision of quality seeds that supported by good planting media. This research studied the effect of media on the growth of Aquilaria malaccensis Lamk.,seedlings while the planting media were soil, husk, and compost. The method was Completely Randomized Design method consisting of 6 treatments and 5 replications. Each replication consists of 1 plant, so there are 30 experimental units. Treatment is distinguished based on volume comparison of planting media, namelytreatment 1 (P1) soil, treatment 2 (P2) compost, treatment 3 (P3) husk, treatment 4 (P4) combination of soil:compost (50%: 50%), treatment 5 (P5) combination of soil: husk (50% - 50%), and treatment 6 (P6) combination of compost: husk (50%: 50%).The variables which observed were plant height, stem diameter and number of leaves. The results showed that the treatment of planting media using compost (P2) gave significant effect on the increase in height and number of leaves of Aquilaria malaccensis Lamk.,seedlings.  Key words : Aquilaria malaccensis Lamk., seedlings, soil, compost, husk
POTENSI PENGEMBANGAN WISATA PULAU BUNAKEN Juwairia Umacina; Wawan Nurmawan; Fabiola B. Saroinsong
COCOS Vol. 10 No. 3 (2018)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/cocos.v1i1.22202

Abstract

ABSTRACT Tourism is one source of foreign exchange of this country, in addition from oil and gas sector which are very potential and has a big contribution to build the economic.This research was conducting in  Bunaken island, the  purpose of this research  to find out the potential and obstacles of those related to tourism development of Bunaken Island.  In developing tourism in Bunaken Island, the first, it need to identify the potential and obstacles in plans and structures of tourism development, so that existing potential can  develop and existing obstacles can overcome. The research method was using interviews with visitors as many as 20 respondents and take the secondary data in ministry of forestry books. Furthermore, the existing data was comparing with observations / observations in the field and interviews with community leaders and managers of Bunaken, National Park. Bunaken Island have the potentials to develop as an alternative to underwater panoramas such as the addition of cultural attractions, mangrove roaming and nature, bird watching, coastal tourism development and culinary tourism and environmentally friendly agriculture. Tourism activities need to  support by the availability of facilities and infrastructure such as clean water. Keywords : tourism, Bunaken Island, infrastructure, potency, obstacles.
RESPON PEMBENTUKKAN KALUS EMBRIONIK TANAMAN KRISAN KULO (Chrysanthemum morifolium) TERHADAP PEMBERIAN ZAT PENGATUR TUMBUH SITOKININ Juita S. Sinaulan; Edy F. Lengkong; Stella Tulung
COCOS Vol. 10 No. 3 (2018)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/cocos.v1i1.22203

Abstract

ABSTRACT Growth regulating substances are organic or inorganic compounds that play an important role in biological processes in plant tissue and one of them is embryonic callus formation and embryogenesis. This study aims to determine the effect of the administration of growth regulators cytokines at certain concentrations on the formation of embryonic callus of chrysanthemum plants. This research was conducted at the Genetics Laboratory of the Faculty of Agriculture, Sam Ratulangi University, Manado. The research was conducted for 4 (four) months, starting June 2018 to October 2018. The research method was carried out using a completely randomized design using the growth regulator from cytokinins, namely zeatin (Z) and TDZ (T) with the concentrations used were 2 ppm, 4ppm and 6ppm, each of which added auxin ZPT 1AA 0.02 Ppm and GA3 O, 2 ppm and repeated 5 times. The variables observed were callus formation time, callus wet weight, and callus color. The results showed that the the callus formation time in chrysanthemum culture was the fastest is 7,8 days after culture, which was treated with zeatin 2 ppm, the largest wet weight culture was 2.111 gr at the treatment of 2 ppm TDZ and the color of the callus formed was green. Keywords : Growth Regulating Substances, Embryonic Callus
KARAKTERISTIK PENGERINGAN BIJI KENARI MENGGUNAKAN EXPERIMENTAL DRYER TIPE RAK M. Kasim; L.Ch.E. Lengkey; D.P.M. Ludong
COCOS Vol. 10 No. 3 (2018)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/cocos.v1i1.22500

Abstract

ABSTRACT Walnut trees are forest plants and have not been widely cultivated. Walnuts are native to Indonesia which are widely grown in eastern Indonesia, such as North Sulawesi, Maluku and Seram Island. This plant has the potential of economics, chemicals that are rich in bioactive content and antioxidant content with one of its components, namely polyphenols, walnuts grow in North Sulawesi where the seeds are widely used as supplement for cakes such as halua walnuts, dodol kenari, klaper koek, and others.  The results of the observation showed the temperature distribution in the plenum room, drying chamber, temperature of the material and the outside air temperature of the drying air temperature was around 60 OC there was a temperature fluctuation in the drying chamber. Moisture levels are inversely proportional to changes in time. The longer the drying, the smaller the water content of walnut seeds shows the pattern of decreasing water content in this experiment with 5 replications showing an exponential pattern. The drying time of walnut seeds using this dryer takes 10 hours to obtain the average water content of walnut seeds at the end of drying of 7.17% wet base. Drying rate of walnut seeds on drying time occurs the drying rate decreases with the estimation model of drying rate of time is y = 3.8532e-0.151x with correlation coefficient R² = 0.899 The drying constant obtained in each replication varies depending on water content and drying rate. Drying rate of walnut seeds on the water content of walnut seeds has a model of y = 0.3738e11.315x R² = 0.9722.
KAJIAN FERMENTASI BIJI KAKAO (Theobroma Cacao L.) MENGGUNAKAN FERMENTOR TIPE KOTAK DINDING GANDA DENGAN AERASI. Muthmainah Gonibala; Ir. Handry Rawung; Ir. Maya M. Ludong, MS
COCOS Vol. 10 No. 3 (2018)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/cocos.v1i1.22508

Abstract

ABSTRAK Penelitian ini bertujuan untuk mengkaji proses fermentasi biji kakao dengan mengukur suhu, pH dan kadar gula selama proses fermentasi dengan menggunakan rancangan tipe kotak dinding ganda.   Hasil pengamatan menunjukan suhu awal fermentasi yaitu 28°C dan terus meningkat hingga 50ºC suhu ini sudah berada pada suhu optimal untuk proses fermentasi biji kakao. Untuk pengamatan selanjutnya yaitu pengamatan pH atau sering disebut dengan derajat keasaman dan diperolah nilai terendah 3.7 setelah 24 jam proses metabolisme yang terjadi selama proses fermentasi. Gula adalah salah satu subsrat penting dalam pertumbuhan dan perkembangan mikroba karna didalam gula tersimpan energi yang dapat dibebaskan melalui proses metabolisme.  Kata kunci : Theobroma Cacao L., Fermentasi
POTENSI LAHAN TANAMAN PISANG ABAKA (Musa textilis Nee) DI PT. VIOLA FIBER INTERNASIONAL DESA SILIAN KABUPATEN MINAHASA TENGGARA Pertiwi Daeng Patompo; Jody M. Mawara; Berry R.V. Joseph
COCOS Vol. 10 No. 3 (2018)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/cocos.v1i1.22598

Abstract

ABSTRACT            This research entitled "Potential of Abaka Banana Plant Land (Musa Textilis Nee) at PT. Viola Fiber International, Desa Silian, Kabupaten Minahasa Tenggara "aims to find out the suitability class of Abaka banana plantations and examine the potential for potential and actual land suitability of Abaka banana plants. This research was conducted in October - November 2017, in the Plantation area of PT. International Fiber Viola, Desa Silian, Kabupaten Minahasa Tenggara. The study area has a sloping topography with a height of 613 masl, using a survey method to obtain primary and secondary data. The results of the study show that the actual suitability of S2rcna is quite in accordance with the limiting factor for root media (rc), especially texture and nutrient availability (N, P, K). With the effort to improve management by adding organic matter, using mulch and fertilizing N (urea), P (TSP / SP36), K (Kiserit), the potential land suitability of S1rc was obtained according to the rooting medium (rc), especially texture.  Keywords : Potential of Abaka Banana Plant Land (Musa textilis Nee)
ANALISIS ENERGI DALAM PROSES PENGOLAHAN KOPRA RAKYAT Gerson Wohon; Dedie Tooy; Robert Molenaar
COCOS Vol. 10 No. 3 (2018)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/cocos.v1i1.22599

Abstract

Abstract  This study aims to determine the energy sources at the stage of the copra processing commonly made by the people, to measure the amount of energy used at each stage of the people's copra processing process, to calculate the total energy used eachs of was obtained by means of energy analysis surveys. The resulting data consists of primary and secondary data.  The total input energy in the process of people's copra is more than twice the amount of output energy contained in the copra produced (870,840 kcal). This condition indicates the need to improve the efficiency of the copra processing process in energy utilization.. Keywords: Energy of coconut fiber, human energy, livestock energy.
KAPASISTAS SALURAN SUNGAI KAROMBASAN Anggraini F. M. Pandeirot; Johan A. Rombang; Fabiola B. Saroinsong
COCOS Vol. 10 No. 3 (2018)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/cocos.v1i1.22659

Abstract

ABSTRACT Capacity Of Karombasan River Channels  The Karombasan watershed has an area of 270 ha and river length of 3.058 m. The main river, Karombasan River, floods almost every year, possibly because the river channel is not able to accommodate the volume of the flow and thus causing a number of houses on the riverbank to be flooded. This flooding event is very disturbing to the locals. The purpose of this research is to analyze the river in location that often flood. Sampling and observation points were determined through purposive sampling methods at the points of frequent flooding. River capacity was analyzed using the Manning equation. Analysis of current river capacity from points 1 to 5 is 10,82 m³/s, 7,85 m³/s, 12,19 m³/s, 11,03 m³/s, and 5,32 m³/s, respectively.  Keywords : Watershed, flood, river capacity.

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