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Articles 10 Documents
Search results for , issue "Vol 1, No 3 (2018)" : 10 Documents clear
UJI ANTAGONISME Trichoderma spp. TERHADAP Phytophthora palmivora PENYEBAB PENYAKIT GUGUR BUAH KELAPA Kaunang, Ryan A.; Assa, Berty H.; Montong, Vivi B.
COCOS Vol 1, No 3 (2018)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/cocos.v1i3.20865

Abstract

ABSTRACT  The deciduous fall of coconut fruit is caused by Phytophthora palmivora fungus.  This study aims to determine the ability of Trichoderma spp. Inhibiting P. palmivora on PDA media in vitro.  Research method used experimentally, that is antagonism test with method of dual culture method. P. palmivora in isolation from coconut fruit showing symptoms of the disease. The results showed that the antagonistic fungus Trichoderma spp could suppress the growth and development of the P. palmivora fungus, the average percentage of inhibition of the antagonistic fungus Trichoderma spp. of the pathogenic fungi of P. palmivora in vitro on PDA media on the fifth day is (100%) for simultaneously inoculated antagonism test and (40,62%) for antagonism test wherein antagonistic inoculation 4 days after pathogen. On the seventh day, the average percentage of inhibition of the antagonistic fungus Trichoderma spp. of the pathogenic fungus P. palmivora is (100%) for both treatments of this antagonism test.  Key Words: Coconut Nut Fall, Phytophthora palmivora, Antagonist
PEMETAAN DAERAH ALIRAN SUNGAI LELEMA DAN KONDISI FISIK JARINGAN IRIGASI DI DESA POPONTOLEN BERBASIS SISTEM INFORMASI GEOGRAFIS Pisu, Kristianto; Ludong, Daniel P.M; Rumambi, David p.
COCOS Vol 1, No 3 (2018)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/cocos.v1i3.21174

Abstract

ABSTRACT  The watersheds is an ecosystem and the main elements of this ecosystem are natural resources (land, water and vegetation) and human resources that utilize natural resources. Regarding with the relationship between watershed and irrigation as one component in the water resources management, watersheds determine the availability of irrigation water when the watershed ecosystem is disrupted. In this condition, the water supply for irrigation decreased and therefore the agricultural productivity reduced. The area of the Lelema Watershed is 3,095 ha with a main river as long as 12,787 m that ends in the main river of Nimanga. The irrigated area of the Popontolen village is geographically located in the irrigation area  of Popontolen Village that is located at 1o15'47 "- 1o16'40" LU and 124o36'20 "- 124o38'00" BT. The area of Popontolen irrigation is 121.20 ha and consisted of primary, secondary and tertiary channels. In conclusion, the carrying channel in the irrigation area of the Popontolen Village is 7,468 meters and the length of primary and secondary carrier channels are 213 and 3,131 m, respectively.  Keywords: Lelema Watershed, Technical Irrigation, Geographic Information System.
ANALISIS POTENSI TEGAKAN HUTAN RAKYAT JENIS CEMPAKA DI DESA KAWATAK KECAMATAN LANGOWAN SELATAN Waisaley, Nurbaya; Thomas, Alfonsius; Nurmawan, Wawan
COCOS Vol 1, No 3 (2018)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/cocos.v1i3.20868

Abstract

ABSTRACT Cempaka a large evergreen tree species, is one of well-know timber grow in the community forest of North Sulawesi, including in Kawatak Village, South Langowan District, Minahasa Regency. Cempaka Wasian in Sulawesi Could be divided into two  species of Magnolia genus, which are Magnolia Sulawesiana and Magnolia Tsiampacca. This research aims to discover the forest stand’s potential of cempaka in Kawatak Village, South Langowan District, Minahasa Regency. The data were collected by generating sample plots with a target of 20 sample plots taken from 12 plantations with the size of 20 x 20 m plot area. In general, the existing community Forest in Kawatak Village is mixed  planting pattern model spreading farmers’  land. The average volume of people‘s plantations are 185.63³ with the average volume of plantations stand of 1.177,54 m³.  Keywords : Community Forest, Cempaka Potential, Kawatak Village.
RESPONSES OF GIVEN THE WATER HYACINTH (Eichornniacrassipes) ONTHE TONDANO WATERSHED SEDIMENT TOWARD THE GROWTH OF CORN CROP ((Zea mays sp.) Frasawi, Alberthina Y.; Sinolungan, Meldi T.M; Kumolontang, Wiesje J.N
COCOS Vol 1, No 3 (2018)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/cocos.v1i3.20880

Abstract

AbstractTondano River is an outlet of Tondano Lake played important roles in the life society of North Sulawesi Province. More increase the population growth, more increase the needed of people to that river, so that more increase the problems, such as sedimentation process occurred as the waste/erosion discharge existed at the Tondano estuary. The problemis the processes of sediment discharge could be used as media for planting and the water hyacinth as compost. The objective of this research was to know the responses of given the water hyacinth compost on the sediments of Tondano Watershed with indicator of corn crop (Zea mays sp.) on the field. Methods were used Randomized Block Design, consisted of some treatments, i.e.: ST0 as control, ST1 – compost of 10 t/ha, ST2 – compost of 20 t/ha, ST3 – compost of 30 t/ha, in three groups as for 12 experimental plots. Results showed that, given the water hyacinth compost on the sediments of Tondano River gave the significant effect for corn growth, that is, the treatment of 30 t/ha.  Keywords: sediment, water hyacinth, compost, TondanoWater shed.
MODEL SISTEM PAKAR DALAM MENGIDENTIFIKASI PERMASALAHAN PADA JARINGAN IRIGASI PERTANIAN DI BENDUNG TALAWAAN Koloay, Richard A.V.; Rumambi, David; Molenaar, Robert
COCOS Vol 1, No 3 (2018)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/cocos.v1i3.20871

Abstract

ABSTRACT  This study aims to obtain information about the problems that occur in irrigation networks at the right part of Talawaan dam and produce a computer application model as an expert system. It is hoped that this expert system application can be useful to provide information about the problems that occur in the irrigation network in Talawaan dam, especially on right Talawaan irrigation networks and can provide solution of the problem through an expert system application that can be accessed by each user. This research was conducted in the Technical Laboratory of Agricultural Faculty of Agriculture Technology Department of UNSRAT and in Talawaan dam, Talawaan Subdistrict, North Minahasa Regency, North Sulawesi Province, and divided into two stages: irrigation network data collection and expert system application development.  Data collection on right Talawaan dam is done by calculating inflow water discharge and outflow water discharge and evaporation on primary, secondary and tertiary channel then documentation on problems that occur on irrigation channel. There is a water loss of 0.187 m3 / sec on the primary channel, 0.213 m3 / sec of water loss in secondary channels, and water loss of 0.074 m3 / sec on tertiary channels. Factors that cause water loss include the problem of damage to irrigation channels, garbage accumulation, illegal water taking, and silting of channels by mud. With this expert system, users can get information on problems that occur on irrigation channels and can consult to find solutions to the problem.  Keywords: Irrigation Network and Expert System
EFISIENSI LAPANG ALAT TANAM BENIH LANGSUNG (TABELA) PADI SAWAH DENGAN MENGGUNAKAN TRAKTOR TANGAN SEBAGAI TENAGA TARIK Geso, Feryatmono O.; Rantung, Ruland; Ludong, Daniel P M.
COCOS Vol 1, No 3 (2018)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/cocos.v1i3.20869

Abstract

ABSTRACTThis study aimed to calaulete the field efficiency of direct seed planting equipment (Tabela) using a hand tractor as a pulling tool. The field evaluation was conducted on an area of 120 m2 that was divided into 3 plots. In this study the distance between planting rows was 20 cm, the legowo rows distance was 40 cm the average of planting depth was 1,4 cm, the the seed number each hole was 3-7 seeds and the average was 4 seeds. The results showed that the field efficiency was 53,53 %. This direct seed planting equipment reduced the number of labors and working time.  Keywords : Tabela tool, Hand Tractor, Legowo
STUDI ETNOBOTANI TUMBUHAN OBAT MASYARAKAT DI DESA PASTINA KECAMATAN SANANA KABUPATEN KEPULAUAN SULA Soamole, Khardy; Pangemanan, Euis F.S.; Nurmawan, Wawan
COCOS Vol 1, No 3 (2018)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/cocos.v1i3.21143

Abstract

ABSTRACTTraditional medicine is part of a cultural system of people  whose benafits are very large in the development of public health. As  a first step it is very helpful to know a plant with medical poroperties is from the knowledge of the community for generations.this study aims to determine the type and utilization of traditionl community medicinal plants in Pastina village Sanana Distirct Sula Islands Regency.  This research was carried out in March – April 2017.  The data was collected by interviewing  Batra using questionnaires and the data were analyzed by descriptife analysis and presented in the from of tables and figure.  The results of this study found 53 types of plants and 39 families that were utilized as traditional medicine. The most numerous families are Araceae and Fabaceae.  Keywords : Traditional medicine, medicinal plants, Pasina village.
ANTAGONISME Trichoderma sp. TERHADAP Alternaria porri PATOGEN PENYAKIT BERCAK UNGU TANAMAN BAWANG MERAH PADA BEBERAPA MEDIA Susandi, Yukiko N.K; Sualang, Denny S.; Paruntu, Meisye H.B.
COCOS Vol 1, No 3 (2018)
Publisher : COCOS

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

ABSTRACT  Alternaria porri is pathogen causes purple blotch disease of shallot, and one of important constraints to increase agricultural production. Trichoderma spp. is one of the biological agents that known have antagonistic ability against the pathogen. This study aims to determine the antagonist Trichoderma sp. against the pathogen of Alternaria porri causes purple blotch disease of shallot on several media. Antagonism test implemented by using dual culture method on PDA media, leaf shallot extract media, and leaf shallot extract media + ½ PDA. The result is Trichoderma sp. is able to inhibit the growth of Alternaria porri on the treatment medium. Based on the inhibit percentage of Trichoderma sp. against A. porri,  Trichoderma sp. on PDA media more faster to inhibit than leaf shallot extract media, and leaf shallot extract media + ½ PDA because the good nutritions in PDA media.  Keywords: Alternaria porri, Trichoderma sp. purple blotch disease
KAJIAN KUALITAS AIR SUNGAI BENING SEBAGAI SUMBER AIR IRIGASI PERSAWAHAN DI DESA MOPUYA SELATAN II KECAMATAN DUMOGA UTARA KABUPATEN BOLAANG MONGONDOW Yusuf, Hendra; Wantasen, Sofia; Lumingkewas, Adeleyda M. W.
COCOS Vol 1, No 3 (2018)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/cocos.v1i3.21022

Abstract

ABSTRACT  The purpose of this study was to determine the water quality of Bening River in Subdistrict Dumoga Utara District Bolaang Mongondow which would be used as rice field irrigation water in the South Mopuya II Village, Subdistrict Dumoga Utara District Bolaang Mongondow. The study was conducted for three months (3 months), namely April to June, the location of water sampling is the Bening River in South Mopuya II Village, then analyzed in the Water Quality Laboratory. The results of the analysis show that the Bening River Sodium Adsorption Ratio (SAR) concentration in the Upper Area (0.61), in theBening River Lower Area (0.59), is in good quality.  DHL (Electrical Conductivity) concentrations in the Bening River in the Upper Area (2.39.10-5dS/m), in the Bening River Lower Area (2.59.10-5dS/m), are in good quality.  TDS (Total Dissolved Solid) concentration in the Bening River in the Upper Area (167 mg/l), in the Bening River Lower Area (181 mg/l), in good quality. Chloride (Cl) Concentration on Bening River in the Upper Area (0.031 me/l), in the Bening River Lower Area (0.051 me/l), in good quality. Boron (B) Concentration on Bening River in the Upper Area (0.005 mg/l), in the Bening River Lower Area (0.005 mg/l), in good quality.  Nitrate (NO3) concentrations in the Bening River in the Upper Area (0.147 me/l), in the Bening River Lower Area (0.179 mg/l), in the good category.  pH concentration in the Bening River in the Upper Area (8.19), in the Bening River Lower Area (7.55), in good quality.  The results of the analysis of Bening River water quality are still in good category or meet the requirements in accordance with the value of Irrigation Water Quality Standards Ayers and Wetscot, 1985.  Keywords:, Water Quality, Sungai Bening, Irigation Water.
PERBANDINGAN KEANEKARAGAMAN JENIS BURUNG DI TELUK MANADO Puasa, Stevano G. Ch.; Tasirin, Johny S.; Frans, Terry M.
COCOS Vol 1, No 3 (2018)
Publisher : COCOS

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Abstract

ABSTRACTManado Bay is an important area for the growth of Manado city, most of the Manado bay area has undergone development with a variety of good destinations for public facilities, service providers and economies as well as residential areas. The developments that have occurred are driving changes in land cover in the Manado Bay coastline. This study aims to compare the diversity of bird species in the built area and areas that are still natural or not yet developed in the Manado Bay coastline. This research was conducted from September to December 2017 using the Point Count. The results of observations were found in 37 species from 21 families, with the Shannon-Wiener index value 3.13 as an indication of the high diversity of bird species in the Bay of Manado. Keywords : Birds, Bird species diversity, Manado Bay

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