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Meldi T.M. Sinolungan
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Fakultas Pertanian Universitas Sam Ratulangi Manado
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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 831 Documents
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POPULASI DAN INTENSITAS SERANGAN HAMA WERENG HIJAU Nephotettix virescens (HOMOPTERA; CICADELIDAE) DI KECAMATAN TOMOHON BARAT KOTA TOMOHON Tuldenigsri H. Gigir; Christina Salakie; Emmy Senewe
COCOS Vol. 6 No. 15 (2015)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/cocos.v6i15.8854

Abstract

ABSTRACT   In North Sulawesi, there are several major insect pests of rice plants, one of which is green leafhoppers which often cause damage to the rice crop. Aside from being a green planthopper pests also act as an insect vector that can transmit the disease Tungro. The study aims to determine the intensity of pest populations of green leafhoppers N. virescens on rice crops in West Tomohon sub district. The research was conducted in two villages namely Tara-tara and Woloan in the District of West Tomohon Tomohon. The research was conducted from December 2014 through April 2015. This study used a survey method in two villages, namely Tara-tara and Woloan West Tomohon sub district Tomohon. The results showed that the population of green leafhopper pest Nephoettix virescens on rice crops in the district of West Tomohon, Tomohon, is highest in sub Tara tara on observations II, as many as 8.5 tails and lowest in sub Woloan on observations IV, namely 2.3 tail. In general, the population of planthoppers in paddy rice crops in the district of West Tomohon, Tomohon highest average of Tara-tara Village, which is 5.8 tails Woloan Village only 4.9 tails. The intensity of the green leafhopper pest N. virescens on rice crops in the district of West Tomohon, Tomohon, is highest in sub Tara-tara on observations IV, amounting to 29.83 % and the lowest in the sub Woloan the first observation, namely 9.83 %. In general, the intensity of plant hopper pest on rice crops in the district of West Tomohon Tomohon highest average in Tara-tara Village, which is 24.89 % and Woloan Village only 14.89 %.  Keyword :  Freen Planthopper Nephotettix virescens, Paddy, Tomohon
AKTIVITAS ANTIOKSIDAN EKSTRAK JAHE MERAH (Zingiber officinale var. rubrum) MENGHAMBAT OKSIDASI MINYAK KACANG TANAH (Arachis hypogaea L.) Junedi Saragih; Jan Assa; Tineke M. Langi
COCOS Vol. 6 No. 15 (2015)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/cocos.v6i15.9112

Abstract

ABSTRACT  Red Ginger is a spice-containing compounds - natural antioxidant compounds. This study aims to determine the antioxidant activity of ethanol extract red ginger in inhibiting the oxidation of peanut oil. This study uses a completely randomized design (CRD) with the addition of the ethanol extract treatment red ginger. Each treatment with 4 levels of concentration: 0%, 0.05%, 0.1%, and 0.15% with repeat three times. The ethanol extract red ginger added to the peanut oil and incubated at 60°C for 72 hours. Laboratory analyzes performed every 24 hours. The results showed that the yield of ethanol extract red ginger produced in this study was 6.78%. The ethanol extract red ginger has antioxidant activity inhibiting oxidation of peanut oil, it can be seen from the figures peroxide controls (without extract) treatment with the addition of red ginger extract. The higher concentration of ethanol extract of the stronger activity inhibiting the oxidation of peanut oil.  Keywords: Antioxidant, ethanol extract, red ginger, peroxide values, Incubation
KAJIAN PENGGUNAAN KOTAK PENDINGIN MENGGUNAKAN HANCURAN ES UNTUK DISTRIBUSI PAK CHOI (Brassica rapa) Emi Y. Sagas; Frans Wenur; Lady C. Ch. E. Lengkey
COCOS Vol. 6 No. 15 (2015)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/cocos.v6i15.9115

Abstract

Abstract This study aims to Calculating the amount of ice needed to cool the water to 150C in a pre cooling and explain changes in visual quality and extent of the damage vegetable pak choi on cooling than without cooling for 5 days. With this research is expected pak choi farmers and traders can use simple cooling technology. In addition to the application of cooling technology is expected to extend the shelf life pak choi, which in turn will increase profits for farmers and traders pak choi. The results showed that the amount of ice needed to lower the water temperature from 250C becomes 150C is 4.83 kg of ice. In the cold storage for 5 days does not change the quality of pak choi, leaf color still looks fresh with a percentage of 100% quality. While pak choi without refrigeration on the last day of storage and the percentage of damage pak choi untreated cooling on the fifth day of storage at 100%.
STRATEGI BERTAHAN HIDUP (LIFE SURVIVAL STRATEGY) BURUH TANI DI DESA TOMBATU DUA UTARA KECAMATAN TOMBATU UTARA Finna Kumesan; Charles R. Ngangi; Melissa L.G. Tarore; Paulus A. Pangemanan
COCOS Vol. 6 No. 16 (2015)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/cocos.v6i16.9125

Abstract

ABSTRACT This study aimed to describe a survival strategy Peasants in theVillage of North Tombatu Two District North Tombatu. The research was conducted during the five months from January to May 2015 in the Village of North Tombatu Two District North Tombatu. The data used in- clude the primary and secondary data. Primary data collection using a list of questions prepared in the form of the questionnaire, while secondary data taken from the agencies - agencies in- volved in this research that North Tombatu Two Village Office. Sampling that all members of the population of Peasants. Samples were taken for one week a total of 32 heads of families. The analytical method used is Descriptive Analysis.The results showed that with low income farm workers they can still survive. By working odd jobs to supplement their income farm workers even though only enough to meet basic needs. The most dominant strategies used by farm work- ers is Controlling Food Consumption and spending that is by utilizing all available resources to suppress expenditure. Farm workers often received help from neighbors or nearby relatives, be- sides the majority of farm workers received help from the government, so it helps in meeting dai- ly needs - today and for membiyayai child's school. The participation of farmers in gathering al- so help farmers to cope with a sudden need and to build a house.  Keyword : Life Survival, hodge, life necessities
KAJIAN PENYIMPANAN DINGIN TERHADAP MUTU JAGUNG MANIS (Zea mays, saccarata) Husni Halid; Handry Rawung; Ireine A. Longdong
COCOS Vol. 6 No. 16 (2015)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/cocos.v6i16.9130

Abstract

Abstract Sweet corn (Zea mays, saccarata) started and already recognized in Indonesia for a long time. Developing market demand for sweet corn continues to grow which trigger the sweet corn farming. Sweet corn distribution must be done as soon after it cultivated so that the sweet corn will taste sweet and it will decrease within 48 hours later (Rodja, 2009). Based on that statement, it is necessary to do research study titled cold storage of sweet corn. This study aims to determine the sugar content during storage, to calculate the weight of sweet corn during storage and observe the color change of sweet corn during storage. The results showed that the amount of decrease in sugar content during storage in the freezer is 0.1754% - 0.2842% and decreased levels of sugar stored at a temperature of space is 0.3859% - 0.4350%. Sugar level drops very visible in the storage room at a temperature of sweet corn, which decrease levels of sugar in the freezer is not as big as the decline of sweet corn were stored at a temperature of space.
Perbandingan Pendapatan Petani Kacang Tanah Di Desa Tombasian Atas Kecamatan Kawangkoan Barat Kabupaten Minahasa (Studi kasus : Kelompok tani yang mengikuti dan yang tidak mengikuti penyuluhan pertanian). Aling Eliana; Eyverson Ruauw; Oktavianus Porajow; Maya H. Montolalu
COCOS Vol. 6 No. 16 (2015)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/cocos.v6i16.9137

Abstract

ABSTRACT This research was carried on in the village of Upper Tombasian Kawangkoan Western District of Minahasa. The method used in this research is survey method. The data used in this study are primary data and secondary data. Primary data were obtained using the technique of direct interview to the respondents using a questionnaire (questionnaire) as a tool in data collection. As for the secondary data obtained from agencies associated with this research. Analysis of the data used in this research is descriptive analysis and the final results are presented using tables. Addressing the results of this study that the average income of peanut farmers who follow agricultural extension greater than the farmers who do not follow the agricultural extension. Income level peanut farmers who follow agricultural extension Rp. 30.7655 million. While the income levels of farmers who do not follow the agricultural extension Rp. 12.627 million. The difference is due to the income of farmers who follow agricultural extension receive fee waivers in the procurement of inputs, particularly fertilizer use is managed to increase productivity yields and managed to increase the total income of farmers who follow agricultural extension.  Keywords: Farmers Group, Peanut, Agricultural Extension and Revenue
ANALISIS KEUANGAN (STUDI KASUS DI INDUSTRI PENGOLAHAN COKELAT BUMDes “MOTOTOMPIAAN” DESA POYUYANAN KECAMATAN PASSI BARAT KABUPATEN BOLAANG MONGONDOW) Rahmawati Alhabsyi; Paulus A. Pangemanan; Eyverson Ruauw
COCOS Vol. 6 No. 16 (2015)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/cocos.v6i16.9187

Abstract

ABSTRACT Financial statement analysis method to determine the performance of companies in a particular period. One of the methods of analysis used are ratio analysis. The analysis reveals the ratio of the elements in the financial statements. Figures from this analysis can show the activity of the company in the state is profitable or not. To measure the final results of the operation of a company can use the profitability ratio, of the value of this ratio can be in the know the strengths and weaknesses which is owned by businessman (businessman). The ratio may provide an indication of whether the company has sufficient cash to liabilities finasialnya or not enough. The purpose of this study was to determine the financial condition of the industry by using the Ratio Profitability and profitability of the chocolate manufacturing industry BUMDes "Mototompiaan".      Profitability Ratio of Gross profit margin measurement results show that in the year 2013 and 2014 hasilnnya above the industry average. This means that the company is in good condition. But for the measurement results Net profit margins, ROI and ROE, shows that in the year 2013 and 2014 results are below the industry average. This means that the industry is not effective in getting benefits because the production process is only dependent on demand or production is not continuous or financial condition of the state is not good. Keywords : Analysis Of The Financial, Ratio Profitabiliy
EKONOMI RUMAH TANGGA PETANI KOPI DI DESA PURWOREJO TIMUR KECAMATAN MODAYAG KABUPATEN BOLAANG MONGONDOW TIMUR Friyantiarno Lasabuda; Juliana R. Mandei; Jenny Baroleh; Jean F.J. Timban
COCOS Vol. 6 No. 16 (2015)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/cocos.v6i16.9188

Abstract

ABSTRACT Friyantiarno Lasabuda, 080314034, Household Economic of Coffee Farmer in East Purworejo Modayag Distric East Bolaang Mongondow Regency under the guidance of Juliana Mandei as chairman, Jenny Baroleh and Jean Timban as members. This research aims to know how the characteristics of coffee farmer in East Purworejo Modayag Distric East Bolaang Mongondow Regency and how the revenue scheme and expenditure of the coffee farmer in this village. This research wasconducted in East Purworejo Modayag Distric East Bolaang Mongondow Regency. The data used in this study is primary data and secondary data, the primary data obtained from direct interview to 30 respondents of coffee farmer in east purworejo village and the secondary data obtained from related agency. Data are analyzed descriptively and presented in tabular form. The results showed that the income of coffee farmers in East Purworejo revenue comes from three sources, which is: coffee farming, farm income other than coffee, and income outside of farming, while household farmers expenditure is divided into three, which is food consumption expenditure, consumption expenditure non-food production and production investment and education. Coffee as the main agricultural commodity in this village with a large production costs are not capable of providing significant advantages over the life of farmers so that farmers seek other alternatives to cover household needs From this research, farmers in the East Purworejo to meet the needs of households consisting of consumption of food, non-food and investment. To cover the needs of farmers in this village not only rely on coffee farming as a main source of income but rather cultivate other crops and professions outside of farming in order to be able to cover the needs of farm households. Keywords : household economic, revenue and expenditure
KAJIAN PEMBUATAN BRIKET BIOARANG DARI LIMBAH KULIT DURIAN DENGAN KOMBINASI SERUTAN KAYU dan TEMPURUNG KELAPA Robert P. Langkai; Freeke Pangkerego; Herry F. Pinatik
COCOS Vol. 6 No. 16 (2015)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/cocos.v6i16.9406

Abstract

ABSTRACT The objectives of this research is to learn the proccess of making charcoal and the yield of charcoal from the waste of durian’s leather, wood’s savings, coconut shell, the combination of waste durian’s leather and wood shavings (1:1), the combination of weste durian leather and coconut shell (1:1), the combination of waste durian leather and wood shavings (2:1) and the combination of waste durian leather and coconut shell (2:1) that is the testing of briquettes burned power and residual ash which has burnt-out. This research is use complete Random Plan Method, to analyze the yield of charchoal and the time of making charcoal, briquettes burned power, the time of heating 1 litre water till it’s boil and residual ash of briquettes which has burnt-out. The result of research show that the average time of making charcoal process of waste durian leather and coconut shell is the same that is 960 seconds, while making charcoal on shavings wood has the average time 980 seconds. This case is also given the bright difference towards the result of yield charcoal. The result of briquettes burned power on seven treatment shows that the briquette of waste durian leather, coconut shell, the combination of waste durian leather and coconut shell (1:1) and the combination of waste durian leather with coconut shell (2:1) is the best because it has the quick average in heating 1 litre water that is 1140 seconds, while the quick average of burnt-out on C treatment or coconut shell briquettes that is 208,800 seconds and has briquettes rendual ash which has burnt-out is smallest that is 2.77%.  Keywords : Aktif charcoal briquettes, durian lether , shavings wood and coconut  shell.
PARASITISASI Diadegma semiclausum Hellen (HYMENOPTERA: ICHNEUMONIDAE) PADA HAMA Plutella xylostella (LEPIDOPTERA; PLUTELIDAE) DI TOMOHON Michael S.N. Bakri; Moulwy F. Dien; Daisy S. Kandowangko
COCOS Vol. 6 No. 16 (2015)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/cocos.v6i16.9513

Abstract

ABSTRACT  Cabbage moth (diamondback moth), Plutella xylostella (Lepidoptera: Plutellidae) is a major pest that is very damaging on plant family Brassicaceae, especially cabbage plants. The study aims to determine parasitation P. xylostella in cabbage planting and Brassiscae area in Tomohon. This study uses survey at four locations in Tomohon, namely Rurukan village, Kumelembuay village, Wailan village and Kakaskasen Two village. Results of the study was only found one type of parasitoids that attack Plutella xylostella in the Tomohon city. Identification results showed that parasitoids that attack the larvae / pupae of P. xylostella is Diadegma semiclausum. The average percentage of parazitation D. semiclausum against P. xylostella in Tomohon highest found in location of Rurukan village (82.01%), Kumelembuay village (76.58%), Wailan village (73.37%) and the lowest in the Kakaskasen Two village (71.94%).  Key word : Cabbage, Plutella xylostella, Diadegma semiclausum

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