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Meldi T.M. Sinolungan
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Fakultas Pertanian Universitas Sam Ratulangi Manado
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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 10 Documents
 1 
Search results for , issue "Vol. 7 No. 2 (2016)" : 10 Documents clear
IDENTIFIKASI JENIS TUTUPAN LAHAN DI KAWASAN KPHP POIGAR DENGAN METODE MAXIMUM LIKELIHOOD Abdul M. Muhammad; Johan A. Rombang; Fabiola B. Saroinsong
COCOS Vol. 7 No. 2 (2016)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/cocos.v7i2.11451

Abstract

ABSTRACTLand cover of KPHP Poigar constantly has been changing. Mapping and identification by Maximum Likelihood method was more accurate than another method. Purpose of this research is to analyze the capability Maximum Likelihood Classification to map and identify the type of land cover in KHPH Poigar area. This research was carried out in September – November 2015 and in four steps. The first step was Image Pre-processing such a Layer Stacking process. Second step consists of OIF (Optimum Index Factor) Calculation, Cropping, and Visual Image Interpretation. Third step was Ground check in KPHP Poigar area. Fourth step were Image Analyzing with Maximum Likelihood Classification method and Accuracy Test. The value of accurate test for Overall Accuracy (OA) was 85,04 percent and for Kappa Accuracy (KA) was 80,97 percent classified into Almost Perfect Agreement category. The result of land cover classification based on image analyzing with Maximum Likelihood Classification method in KHPH Poigar indicated that there are 5 types of land cover, they are forest (21597,21 ha), bareland (5799,69 ha), bush (5612,58 ha), farmland (5649,12 ha) and mixed farmland (2942,37 ha).Keywords : Maximum Likelihood, KPHP Poigar, Type of Land Cover, Accuracy
KEANEKARAGAMAN JENIS TUMBUHAN DI HUTAN MANGROVE KECAMATAN TOMBARIRI KABUPATEN MINAHASA Ziman F. Dekme; Marthen T. Lasut; Alfonsius Thomas; Reynold P. Kainde
COCOS Vol. 7 No. 2 (2016)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/cocos.v7i2.11735

Abstract

ABSTRACT This research took place at four villages (Poopoh, Teling, Kumu, and Pinasungkulan) in the District of Tombariri from May to June 2015.  It was aimed to determine the diversity of mangrove forest trees using explorative method for species identification as well as their morphology structure.  Vegetative features include roots, bark, leaf, flower, fruit, and colour. In addition to that, community use of the mangrove was also studied.  Results show that 8 species were found and belonged to 5 families (Avicenniaceae, Rhizophoraceae, Arecaceae, Sonneratiaceae, and Pandanaceae).  From Rhizophoraceae there are 3 species (Bruguiera clyndrica, Rhizophora stylosa, Rhizophora apiculate); from Sonneratiaceae there are 2 species (Sonneratia alba and Sonneratia ovata); followed by 1 species each for the rest of the families, that is, Avicennia alba from Avicenniaceae, Nypa fruticans from Arecaceae, and Pandanus sp. from Pandanaceae. Keywords: Tombariri, mangrove, Avicenniaceae, Rhizophoraceae, Arecaceae, Sonneratiaceae, Pandanaceae
PERTUMBUHAN Grynops vesteegi (Giil) PADA BERBAGAI DOSIS PUPUK ORGANIK CAIR G-TONIK Timur Kogoya; Marthen T. Lasut; Johan A. Rombang
COCOS Vol. 7 No. 2 (2016)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/cocos.v7i2.11904

Abstract

ABSTRACTThe study of the growth of Gyrinops vesteegii (Giil) plant by applying various doses of G-tonic liguid organic fertilizer had been carried out in the Greenhouse of the Faculty of Agriculture, University of Sam Ratulangi Manado.The purpose of this study is to find out the effect of various doses of liguid organic fertilizer on the growth of the Gyrinops vesteegii plant. This study is conducted by using Randomized Complete Block Design ( RCBD) with 5 treatments and 5. Replications each replication consists of one plant. The treatments applied were P1 (Control, without fertilizer), P2 0.125 cc of G – tonic liguid organic fertilizer given every application. P3 0,25 cc, P4 0,375 cc, and P5 0,500 cc. The variables observed were the increase of plant,s height as well as of stalk diameter. The data obtained will be analyzed by using Analisisv of Variance (anova) at 5% level.The result of the study showed that the application of G-tonic liguid organic fertilizer to Gyrinops vesteeglii plant seedling did not have significant effect on the increase of plant,s height and stalk,s diameter. This is due to the liguid organic fertilizer did not have yet effect toward the Gyrinops vesteeglii plant seedling in a period of 35
POTENSI AVIFAUNA UNTUK PENGEMBANGAN EKOWISATA BIRDWACTHING DI DESA EKOWISATA BAHOI Meike D. Lakiu; Martina A. Langi; Hard N. Pollo
COCOS Vol. 7 No. 2 (2016)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/cocos.v7i2.11938

Abstract

ABSTRACTAVIFAUNA POTENCY FOR DEVELOPING BIRDWACTHING ECOTOURISM IN THE VILLAGE OF ECOTOURISM BAHOIThe research aimed to study diversity, distribution, and avifauna potency for birdwacthing ecotourism in the mangrove vegetation of Bahoi village, west of Likupang, North Minahasa. The research was conducted from June to September 2015. The purposive method was used to collect data. Observations were made at 36 points determined based on bird preferences. From that observations it was found 47 bird spesies, belonging to 25 families. Among all the species, 65.9% is categorized as resident, 23.4% as endemik of Sulawesi, and 10.6% as migratory. Based on the government regulation (PP No. 7, 1999), there are 12 protected birds spesies within the resident and Sulawesian endemic species. The value of diversity in this mangrove was 3.24 or higher than Shannon-Wiener criteria. Index of eveness was 0.84 or higher than Magguran criteria. Based on all the values obtained, two birdwatching lines for ecotourism were proposed.Keywords: avifauna, bird diversity, ecotourism, birdwacthing.
KERUSAKAN BIJI KAKAO OLEH HAMA PENGGEREK BUAH (Conopomorpha cramerella Snellen) PADA PERTANAMAN KAKAO DI DESA MUNTOI DAN SOLIMANDUNGAN Saida F. Azim; Daisy S. Kandowangko; Noni N. Wanta
COCOS Vol. 7 No. 2 (2016)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/cocos.v7i2.11972

Abstract

ABSTRACTThe research aimed to damage cacao seed of is cacao moth (C. cramerella Snellen) was carried plants cocoa in the village Muntoi and village Solimandungan.The research was carried two village : (1) Muntoi (2) Solimandungan. To find out damage cacao seed of cacao moth attack to do is cacao fruit fission with figuring quantity damaged seed, and quantity healthy seed. quantity cacao fruit gaze have a lot of 25 fruit from to each sample location and by dividing 4 repetetion with interval harvesting 1 month that starts from November 2015 to February 2016. The research in use purposive sampling (sampling was by randomly) with take fruit is ripeness with characterized shape of the fruit is yellow. Precentage of damaged seed cacao of is cacao moth in the village Muntoi 18,25 % and village Solimandungan 50,20%. Damaged seed was to fruit cacao to plants cacao in the village Muntoi and village Solimandungan because have a controller by pruning and garden sanitation.Keywords : C. cramerella, Cacao moth, Cacao.
Fenologi Pohon Angsana (Pterocarpus indicus) Di Kota Manado. Tepenur Weya; Johny S. Tasirin; Martina A. Langi; Josephus I. Kalangi
COCOS Vol. 7 No. 2 (2016)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/cocos.v7i2.12015

Abstract

ABSTRACTThis research is aimed to study the phenology of angsana trees in the urban areas of Manado city. Sam Ratulangi street is divided into five observing segments with relatively the same number of trees at about 129-131 at each segment giving a total of 651 trees. The phenology observed at each tree including leaf, flower, and fruit phenomenon. The diameter of each tree are measured. Trees were then greuped into five categories:<10, 10-<20, 20-<30, 30-<40 and ≥40 cm. The results shows that angsana trees in Sam Ratulangi street had diameter of about 3.4-50.5 cm.The highest accumulation at trees was at last fourth categories ranging at 132-185 trunks. The phenology of leaves which dominate the entire segments on Sam Ratulangi street are green leaves at 89.9%of the 651 trees.The shoot phenology was performed by 11-20 trees (1.7-3.1%) and the flowering phenomena were found in 17-20 trees (2.6-3.8%). The flowering phenomena was mostly found at segment 1 (zero point) and becoming less and less toward the upper segments (Citraland intersection). The fruiting phenology shows and an opposite trend. The new flowering phenology are found on trees in three categories at medium diameters (10-40 cm) while the phenology of fruiting are found on trees with large diameters (>20 cm).
INSIDENSI PENYAKIT BUSUK BUAH PALA DI KECAMATAN KENDAHE KABUPATEN KEPULAUAN SANGIHE Virnansia A. Karoho; Denny Sualang; Max Ratulangi
COCOS Vol. 7 No. 2 (2016)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/cocos.v7i2.12094

Abstract

ABSTRACKThis study aimed to quantify the incidences of dry-rot and wet-rot fruit diseases in some centers of nutmeg plantations, namely the Village of Talawid, Kendahe Satu, and Kendahe Dua, Kendahe Sub-District, The District of Sangihe Islands. This study was done for 4 months from October 2015 to January 2016. This study used a survey method with a purposive sampling in nutmeg plantations owned by the farmers in the village of Talawid, Kendahe Satu, and Kendahe Dua, each village was assigned one farm as a sample. The nutmeg tree was divided into two sectors, namely the upper and lower sector. The number of sample nutmeg trees were 20 trees; each sector of the tree was randomly observed 30 nutmeg. Observations were made three times at intervals of two weeks, of different nutmeg trees.The results of this study showed that early symptoms of dry-rot fruit disease appeared small brown rounded patches, with a diameter of approximately 0.3 cm, this section become brown and sunken (concave), while the wet-rot fruit disease, symptoms generally begin to appear at the base of the fruit, in which the diseased part started to become brown. The causal agent of dry-rot fruit disease is Stigmina myristicae, while wet-rot fruit disease caused by Colletotrichum gloeosporioides. The incidences of fruit rot disease in the observed center nutmeg plantations showed diffrent disease incidences. The highest average incidences of wet-rot fruit disease was 3.92%, while the highest average incidences of dry-rot fruit disease was 56.18%.Key Words: Nutmeg, Stigmina myristicae, Colletrotrichum gloeosporiodes, Incidences
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

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