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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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KAJIAN SIFAT FISIK DAN KIMIA TANAH PADA TANAH BERPASIR DI DESA NOONGAN KECAMATAN LANGOWAN BARAT Randy W.G. Tewu; Lientje Th. Karamoy; Diane D. Pioh
COCOS Vol. 7 No. 2 (2016)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/cocos.v7i2.12097

Abstract

ABSTRACTThe nature of soil is crucial in supporting the growth and development of plants, both the physical, chemical and biological soil. The physical properties of the soil, among others, the texture, structure and soil permeability. Soil chemical properties include soil pH and nutrient content. Nutrient content, consisting of the content of nitrogen, phosphorus, potassium and organic matter. Among other biological properties of soil microorganisms decomposing organic matter in the soil. The need for analysis of the nature of the soil to support plant productivity and prosperity. This study aims to determine the physical and chemical properties of soil on sandy soil in the village of Noongan District Langowan West. The method used is survey method with direct observations in the field and determining the location of the soil sampling. Sampling was done by making minipit with a size of 50cm x 50cm x 50cm in the field, to determine the physical and chemical properties of soil on sandy soil in the Village of Noongan District Langowan West. The study lasted for two months from February to March 2016 and held in the village as the center Noongan seasonal crops in the District of West Langowan. Further analysis of the soil at the Laboratory of Physics and Soil Conservation and Soil Fertility Laboratory of Chemistry and the Faculty of Agriculture, University of Sam Ratulangi to determine the physical and chemical properties of land on sandy soil.Keywords : sandy soil, physical and chemical properties of soil
POPULASI DAN INTENSITAS SERANGAN LARVA Spodoptera litura PADA TANAMAN KACANG TANAH Arachis hypogeae L. DI DESA KANONANG KECAMATAN KAWANGKOAN BARAT Greyni P. Palit; Betsy A.N. Pinaria; Elisabeth R.M. Meray
COCOS Vol. 7 No. 2 (2016)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/cocos.v7i2.12100

Abstract

ABSTRACTThe purpose of this research is to know the population and intensity attack of larvaS. litura to peanuts at Kanonang Kawangkoan Barat. Decided the research location, there aretwo planting locations of peanuts on 25x15 m2 wide. Then, every garden bed decided to fivesub plot monitoring that spread diagonally on size 3x3m.The result showed that the population of larva S. litura on peanuts at Kanonangvillage Kawangkoan Barat the highest was on 49 days old after planting at location A thatreached out 2,2 by clump and reached out 4,8 by clump of location B and the highestintensity attack was on 49 days old of plant at location A that reached out 17,61% and19,52% at location B.The more the plant had been growing old that more the population and intensityattack of a pest had been increasing, because the necessity of pest would be more increasing .Key words : Population, Attack Intensity, S. litura, Peanut
Pengaruh Penggunaan CMC (Carboxymethyl cellulose) Terhadap Sifat Organoleptik Kue Pia Gorontalo Dengan Bahan Baku Tepung Jagung Christy Sakendatu; Dekie Rawung; Lucia Mandey
COCOS Vol. 7 No. 2 (2016)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/cocos.v7i2.12101

Abstract

ABSTRACTCorn is a main commodity of Gorontalo Province and often become typical culinary from Gorontalo. But processing of pia is use 100% wheat flour as main ingredient, so how to make a pia use as much as possible corn flour become a basic of this research with CMC as fastener. The benefit of this research to produce pia from corn flour that can be a typical culinary of Gorontalo. This research is use CMC with 1%, 2%, and 3% consentration in mix flour (corn flour 80% and wheat flour 20%) to test receptivity of corn pia by organoleptic test consist of texture, color, taste and to analyze chemical character of corn pia. According to the sensory analyzing data, corn flour can be processed into pia. Addition of 2% CMC produces pia with most preferably through a test based on organoleptic test and in different test sample had better color than control but texture and mothfeel same as control.Keywords : Pia, Corn Flour, CMC
FLORA POHON DI KAWASAN KAMPUS UNIVERSITAS SAM RATULANGI MANADO Edwan Tuidano; Marthen T. Lasut; Euis F.S. Pangemanan; Wawan Nurmawan
COCOS Vol. 7 No. 3 (2016)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/cocos.v7i3.12117

Abstract

ABSRACTThis research has been conducted in the area of Sam Ratulangi University Campus for 2 months, from October to November 2014. This study aims to determine the number of tree species, distribution, and make key identification. The research used the census method. The trees that have been observed have a trunk diameter of over are 10 cm. The morphological observation was made in the roots, trunk, branches, leaves, fruits, and seeds.roots, stems, branches, leaves, flowers, fruits, and seeds. From the observation was found 80 species of trees.Keywords: Flora, Tree, Identification Key.
Distribusi dan Populasi Burung Manguni (Otus manadensis) di Gunung Kosibak, Taman Nasional Bogani Nani Wartabone Fransisca Solang; Johny S. Tasirin; Wawan Nurmawan
COCOS Vol. 7 No. 3 (2016)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/cocos.v7i3.12120

Abstract

ABSTRACTThe national park has an important role in the preservation of biodiversity, became the house for animals to living wildly. Otus manadensis is one of wild animals in the Bogani Nani Wartabone National Park is endemic species Sulawesi who have ecological role as pest controller. Quantitatively the spread of this species is not known for certain. This research conducted approximately 3 months from September – December 2015. Used methods of the point count and transect line. The point of observation is systematically divided into 4 segments based on the height of the surface of the sea. Three segments including in the national park area that is located in the Mount Kosibak while other segments is a production area or field located near the settlement. Research results obtained that Otus manadensis prefer areas with a good vegetation cover. There is a very high correlation between the condition of the vegetation cover with the density of Otus manadensis in Mount Kosibak. Otus manadensis density higher on the vegetation with basal area and importance value index is high.Key word : Population, Otus manadensis, Vegetation, Segment, Mount Kosibak, TNBNW
PENGARUH PUPUK DAUN DAN NAUNGAN TERHADAP PERTUMBUHAN BIBIT GAHARU Gyrinops verstegii (Gilg) Domke DI BAWAH CEKAMAN AIR. Anggreine H. Mentang; Johan A. Rombang; Marthen T. Lasut; Alfonsius Thomas
COCOS Vol. 7 No. 3 (2016)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/cocos.v7i3.12152

Abstract

ABSTRAKThis research aims to know the influence of leaf fertilizers and shade on the growth ofGyrinops verstegii (Gilg) Domke under water stress. This research was conducted in the greenhouse of Faculty of Agriculture, University of Sam Ratulangi Manado, from June to August2013. Spit plot design is used in this research. Shade as main plot consists of two levels,namely: 1 layer of paranet N1 (light intensity ± 40%) and 2 layers of paranet N2 (lightintensity ± 16%). Doses of fertilizer as sub-plot consists of 3 levels: P0 as a control (nofertilizer), P1 0.012 g/plant and P2 0.024 g/plant. The fertilizer was given every week for 2months. The effects of both shading and fertilizer treatments were not significant on plantheight and stem diameter under water stress.Keywords: Gyrinops verstegii, water stress.
INSIDENSI PENYAKIT LAYU BAKTERI PADA TANAMAN KENTANG (Solanum tuberosum L) DI KECAMATAN MODOINDING Monica Wenas; Guntur S.J. Manengkey; Henny V.G. Makal
COCOS Vol. 7 No. 3 (2016)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/cocos.v7i3.12153

Abstract

ABSTRACTThis reseach aims study the wilt desease of bacterial on potato held in Mondoinding District for3 monts from January to April 2016. Laboratory studies conducted at the Laboratory ofMicrobiology and Plant Pathology, Faculty of Agriculture Unsrat Manado and in the field whichis in Modoinding District. The research in the laboratory is to determine the pathogenic bacteriathe causes wilt disease while in the field is to determine the incidence of the disease thet carriedout in the Linelean village, Makaaroyen village and Palelon village using subplots extent of 2 mx2 m and the spacing used between the plants is 40 cm x 20 cm with the number of samples ineach subplot at 22 plants, to study the incidence of the disease by the method of survey andsampling deliberate on potato experiencing symptoms of wilting. The result showed that thecharacteristic of pathogenic bacterial causing wilt disease on potatoin the Modoinding Districtthat Ralstonia solanacearum, is the symptoms of the plants become wither, the stem becomesbrown and rotten. The result of the study the incidence of wilt diseases caused by pathogenicbacteria in the field have differences with the incidence of wilt diseases caused by pathogenicbacteria at each location, with the highest incidence is Linelean village with 51.58%, followed by44.88% Palelon village and the Makaaroyen village 40.78%. The incidence of bacterial wiltdisease in Modoinding district each location of the observations is increasing every week withthe highest incidence of will disease caused by pathogenic bacteria is an average of 78.62% andthe lowest attack which is an average of 5.45%.
Pengaruh Media Tumbuh Kompos Terhadap Pertumbuhan Bibit Jabon Merah (Anthocephalus Macropyllus) Chandra C. Mosooli; Marthen T. Lasut; Josephus I. Kalangi; Jos Singgano
COCOS Vol. 7 No. 3 (2016)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/cocos.v7i3.12301

Abstract

ABSTRACTThe Research Anthocephalus growth macrophyllus (Roxb.) Havil) at various doses of compost have been carried out in the greenhouse of Faculty of Agriculture, forestry science courses Unsrat. The purpose of this study was to determine the effect of the growing medium compost on growth Anthocephalus macrophyllus. This study uses a randomized block design (RBD), with five treatments and five replications each test consists of 6 plants. Compost growing media treatment levels given are A control (without fertilizer) B (0.5 kg), C (1kg), D (1.5 kg), E (2kg). variable observed that the increase of plant height, stem diameter increase, in the number of leaves, root volume and dry weight of the plant. This study uses a randomized block design (RBD).The results showed that the growing medium compost significant effect on the growth of high and volume root crop seeds Anthocephalus macrophyllus. And the effect of high growth and volume Anthocephalus best root seedling compost macrophyllus is giving treatment that is as much as 1.5 kg at treatment D.Keyword : Compost, Seed Growth Anthocephalus macrophyllus
TINGKAT PENERIMAAN KONSUMEN TERHADAP MINUMAN HERBAL TEH DAUN SIRSAK (Annona muricata Linn.) Nathania E. Ong; Gregoria S. S. Djarkasi; Judith C. S. Moningka
COCOS Vol. 7 No. 3 (2016)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/cocos.v7i3.12313

Abstract

ABSTRACTSoursop leaves tea is an herbal tea that has a distinctive flavor and distinct from the other leaves. The aim of this research is to determine the level of consumer acceptance of soursop leaves herbal tea. The research arranged using Factorial Completely Randomized Design with 3 factors, processing, leaves of processed form, and long extraction. Analysis of consumer acceptance include taste, color, and aroma of soursop leaves herbal tea. The hedonic test of soursop leaves tea with the highest score of taste, color and aroma is sample on boiled extraction method, with flakes leaves, and 7 minutes of long extraction.Keywords : soursop, herbal tea, hedonic test
PENENTUAN UMUR SIMPAN SIRUP PALA BERDASARKAN PERUBAHAN DERAJAT KEASAMAN pH Melisa J. Sahambangung; Lady Ch. Lengkey; David Rumambi
COCOS Vol. 7 No. 3 (2016)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/cocos.v7i3.12314

Abstract

ABSTRACTNorth Sulawesi province known as one of the largest producer of nutmeg crop in Indonesia. North Sulawesi supplies about 75% of the needs of nutmeg world with exports ranging between 1000 to 2000 tons. Processing nutmeg nutmeg syrup is one way of diversification of nutmeg. Small and Medium Industries (SMI) "Sari Fruit" is one nutmeg syrup producers in North Sulawesi, especially in the district of Sitaro. However nutmeg syrup products on the market has not been specified expiration date. One method that can be used in determining the shelf life of foodstuffs is ASLT (Accelerated Shelf Life Testing). The benefits of this research is to increace public knowledge about the processing of nutmeg syrup, and to add nutmeg syrup product competitiveness. The nutmeg syrup stored at a temperature of 30 ° C, 35 ° C and 40 ° C for 12 weeks (90 days). The parameters used to analyze the degradation products are nutmeg syrup, pH. The results showed that the shelf life based on pH nutmeg syrup at normal storage temperature of 30 ° C is 52.48 weeksKey words : nutmeg syrup, ASLT ((Accelerated Shelf Life Testing)

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