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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 831 Documents
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POPULASI DAN SERANGAN LARVA Batocera hercules Boisduv (COLEOPTERA: CERAMBYCIDAE) PADA TANAMAN PALA DI KECAMATAN KAUDITAN KABUPATEN MINAHASA UTARA Ruknindi D.L Mamonto D.L Mamonto; Moulwy Frits Dien; Jimmy Rimbing
COCOS Vol. 9 No. 5 (2017)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/cocos.v1i1.19300

Abstract

ABSTRACTNutmeg plant is a superior plant of plantation sub-sector of North Sulawesi Province. Basically nutmeg plants are still a source of income farmers at the center of nutmeg production in North Sulawesi. In the development of plants Pala problem faced by farmers is borer stem borer Batocera Hercules. This study aims to determine the population and attack of B. hercules, on nutmeg plants in Kauditan District of North Minahasa Regency. The research used survey method on nutmeg plantation in Kauditan District of North Minahasa Regency. Servey result set three villages as sample location that is Karagesan village, Treman village and Watudambo village.Determination of sample plants was done randomly by selecting each of 20 trees in each village. Observation and sampling is done 4 times with interval once a week. Thus, the total sample crop at each sample/village location is 80 trees. To avoid double observation, the observed plants are marked at the base of the stem and are not observed again.The results showed that from 80 sample plants observed in each village in Kauditan District of North Minahasa Regency, the largest larvae population was found in the Karegesan village ie as many as 38 heads, then Treman village 7 and Watudambo Village 2. The highest percentage of affected plants was found in Keregesan Village which reached an average of 60.00%, then Treman village 26.25% and Watudambo Village 15.00%. The highest level of damage to the crop was found at the site of Karegesan village which reached an average of 2.11 holes / trees, Treman village averaged 0.37 hole / tree, Watudambo village on average 0.16 hole / tree.Keywords : Plant Nutmeg, Population of larva, Batocera hercules
Ukuran Populasi Kroto dan Tumbuhan Inang Semut Rangrang di Hutan Pantai Moinit Kabupaten Minahasa Selatan Yunias Wenda; Frans T; R Kainde
COCOS Vol. 9 No. 5 (2017)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/cocos.v1i1.19301

Abstract

ABSTRAKKroto is an ant egg rangrang and is the result of non-timber forest. Kroto is useful for birds chirping food and fish bait. Excessive utilization will cause the ant population to decrease. Rangrang ants also play a role to preserve the forest because it is a predator of certain pests.The research was conducted in Moinit coastal area of South Minahasa regency in November-December 2016. This study aims to find out the population of kroto and plant species ant ant rangrang. The method used is to record all the trees contained nests and purposive to determine the sample. The results of the study were 6 species of host plants from the ant rangrang namely ketapang (Terminalia cattapa),mengkudu (Morinda citrifolia L.), urlaut star (Calophyllum inophyllum), bitter tree (Barringtonia asiatica), waru (Hibiscus tiliaceus L.), banyan tree (Ficus benjamina L) .Number of nest / type of host plant, nest of ketapang 5 nest, mengkudu 3 nest, 4 nest urlaut, nest of bitung 5 nest, waru 4 nest, banyan tree 7 nest. The average number of hatchlings / species of host plants consists of ketapang 46,68 cm, mengkudu 40,57 cm, urlaut star 44, 51cm, tree bitung 41,71 cm, waru 48,36 cm, 36 cm cold tree. The average number of shoots / nests / granaries is exposed to cramped 74 kroto, mengkudu 75 kroto, urlaut 74 kroto, mengkudu, bitung 75 kroto, waru 78 kroto, banyan tree 38 kroto. Keywords: Kroto, non timber forest products, forest….
PENGARUH PENGGUNAAN MULSA PADA PERTUMBUHAN DAN PRODUKSI TANAMAN KENTANG (Solanum tuberosum L.) DI DATARAN MENENGAH Giavirna J. Enoch; Edy F. Lengkong; Jantje Pongoh
COCOS Vol. 9 No. 5 (2017)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/cocos.v1i1.19302

Abstract

ABSTRACTThe objective of this study was to study the effect of mulch use on the growth and production of potato crops in the middle plains and to determine the type of mulch suitable for potato crops in the middle plains. This research was conducted in Tompaso II Village District Tompaso, Regency of Minahasa, with the height of 765 mdpl. This study was implemented for 4 months, from May to August 2016. This study used a Completely Randomized Design experiment consisting of 3 treatments with different repetitions. The Treatments are Plastic Silver Black Mulch repeated 3 times, Straw Mulch repeated as much as 4 times and Control repeated 6 times. Based on the result of statistical analysis, there is no significant difference between the treatment can be caused by environmental factors and genetic factors seedings are planted. Environmental factors such as temperature, humidity, rainfall, light intensity, soil fertility, and the presence or absence of pests and diseases will determine growth and production in plants.Keywords: the potatos, medium plains, mulch
APLIKASI KOMPOS SEBAGAI PEMBENAH PADA BAHAN INDUK TANAH TAMBANG EMAS DI DESA TATELU KECAMATAN DIMEMBE Yohanes Sunuk; Maria Montolalu; Zetly E. Tamod
COCOS Vol. 9 No. 5 (2017)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/cocos.v1i1.19519

Abstract

ABSTRACT Compost is a product of decomposition of organic materials accelerated by various microbes to become weathered. This study aims to examine the change of soil chemical properties of the gold mine soil before and after the application of soil composting materials. The research method used is descriptive from the analysis of soil chemical properties such as : Color, pH, C-Organic, N, P, and K. Parent material of gold mine soil generally have pale yellow color, low pH  (acid), C-organic , N, P, and K are not ideal or low. The condition of the mine ground material is in the phase of damage. Soil ameliorant are natural or synthetic materials used to cope with soil damage. Compost is one of the organic soil ameliorant with the function of improving the condition of damaged soil and also as a source of nutrients. Compost will give changes to the gold mine soil material but not quickly, it takes a relatively long time.  Keywords: Compost, Soil ameliorant, Material of Gold Mine Ground.
KERAGAMAN JENIS TANAMAN PADA SISTEM AGROFORESTRI PEKARANGAN DI DESA WAREMBUNGAN Yaromi Yoman; Euis F.S. Pangemanan; Semuel P. Ratag
COCOS Vol. 9 No. 6 (2017)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/cocos.v1i2.20108

Abstract

ABSTRACT  The traditional agroforestry homegarden in the village when judging from the vegetation composition it have interesting characteristics. Village homegarden ecosystems have a very diverse ecosystem service function and play an important role in the lives of rural communities. The purpose of this research is to know the diversity of plant species in agroforestry homegarden in Warembungan Village. The method used in this research is the interview method by using questionnaires as a means of collecting primary data and secondary data and direct field observation Based on the results of research in Warembungan Village, Pineleng District found 53 species of homegarden plants. The diversity of plant species consists of 24 families. The diversity of plant species consists of 24 families. Most of the homegarden plants are spices with 279 plants, 257 fruits plants, and 180 vegetables plants. Meanwhile, 159 tuber plants 90 ornamental plants, and 82 timber plants.Total individu 1,047 plants and the location of front, side and back of respondent's house.  Keywords :Diversity of plant, types, agroforestry, homegarden
UJI ANTAGONISME Trichoderma sp. TERHADAP Colletotrichum capsici PENYEBAB PENYAKIT ANTRAKNOSA PADA CABAI KERITING SECARA In Vitro Ibnu Khairul; Vivi B. Montong; Max M. Ratulangi
COCOS Vol. 9 No. 6 (2017)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/cocos.v1i2.20109

Abstract

ABSTRACT  Colletotrichum capsici is one of the fungi that can cause anthracnose disease in chili plants. Trichoderma sp. is an antagonistic fungus that has the potential to control anthracnose disease. This study aims to determine the growth and development of the fungus Trichoderma sp. and Colletotrichum capsici pathogenic fungi as well as the percentage of inhibition of Trichoderma sp. fungus. against the Colletotrichum capsici fungus. Testing using dual culture method on Potato Dextrose Agar media to know the percentage of inhibition.The results of this study showed that the colony of Trichoderma sp. able to inhibit the growth of Colletotrichum capsici fungal colonies with an average percentage of 2.82% inhibition on the third day after inoculation; 70.28% on the fourth day after inoculation and 100% on the fifth day after inoculation.  Keywords: Percentage, Colletotrichum capsici, Anthracnose
AGROFORESTRI POLA KEBUN CAMPURAN DI DESA WAREMBUNGAN KECAMATAN PINELENG PROVINSI SULAWESI UTARA Yali Kogoya; Hengki D. Walangitan; Reinold P. Kainde
COCOS Vol. 9 No. 6 (2017)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/cocos.v1i2.20110

Abstract

ABSTRACTSYSTEM AGROFORESTRI MIXTURE GARDEN IN WAREMBUNGAN VILLAGE OF SUBDISTRICT PINELENG PROVINCE NORTH SULAWESIThe purpose of this research was to describe the agroforestry pattern at Warembungan village. The methods used in this study were survey, interview, and direct observation. Data collected were analysized descriptively and presented in graphics and tables. The results showed that dominant forest tree species used in the agroforestry pattern were Nantu (Palaquium sp.) and Angsana (Pterocarpus indicus). The dominant plantation species found were cloves (Syzygium aromaticum) andcoconut (Coconusnutifera). Thedominant fruit specieswere rambutan (Nepheliumlappaceum), jackfruit (artocarpus heterophyllus), and other species included chili (Capsicum sp.), and banana (Musa sp).Key words : system agroforestry mixture garden.
ESTIMASI BIOMASSA POHON MAHONI (Swietenia Macrophylla King) DI AREAL UNSRAT Martinus Lokbere; Hard N. Pollo; Johny S. Tasirin
COCOS Vol. 9 No. 6 (2017)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/cocos.v1i2.20116

Abstract

ABSTRACT  Mahogany tree besides capturing carbon for its natural growth, it can be hypotezised that the tree has a capability to reduce CO2, heat energy and other pollutant contents that released to the air.  Total carbon captured by the mahagony tree, then can be estimated quantitavely in form of biomass.  The aims of this research were to calculate biomass content on mahagony trees and to estimate the biomass characters on each part of the trees.  The researh was done in UNSRAT area from June to July 2017 by Cencus Method.  The data were analysed by using Allometric Equations developed to calculate biomass content of mahogany tree.  The result showed that from the 313 trees, the total biomass was 304,052.99 kg.  It was characterized by the biomass content on tree trunks was 5 %, stems 73 %, branches 17 %, branchlets 2 %, and on leaves 3 %. These imply that the mahagony tree can be planted to over released pollutant area in order to reduce the CO2, heat energy and other pollutant contents.  Keywords : Mahogany Tree, carbon, biomass, UNSRAT
PERMINTAAN BAMBU KONSTRUKSI PADA OUTLET PENJUAL BAMBU DI KELURAHAN KINILOW KECAMATAN TOMOHON UTARA Anita S. Safisa; Hengki D. Walangitan; Paulus A. Pengemanan
COCOS Vol. 9 No. 6 (2017)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/cocos.v1i2.20202

Abstract

ABSTRACT  The research aims to identify the quantity of demand and marketing outlets bamboo constuction in the bamboo sales outlets in Kinilow urban village. The research used interview method with the tools of the questionnaire for 4 respondents. The result of research showed that in general, the quantity of demand basically very fluctuated. The size demand of bamboo construction was difficult to set, but stock of bamboo keep provided all the time. Estimated within a week of bamboo construction available approximately as much as 1000 tips. The quantity of bamboo construction demands each month ranges from 750 to 1000 tips. Construction bamboo producers that was too small had very simple marketing outlets. There were 2 marketing outlets, (1) the farmers (producers) sold to consumers directly. (2) the farmers (producers) sold to collectors and then the collectors sold to consumers.  Keywords : Bamboo Construction, Demand, Marketing Outlets, Kinilow urban village
STUDI PENGEMBANGAN KAWASAN HUTAN LINDUNG GUNUNG MAHAWU MENJADI TAHURA M. Ali Liambana; H. D. Walangitan; S. P. Ratag
COCOS Vol. 9 No. 6 (2017)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/cocos.v1i2.20212

Abstract

ABSTRACT   This study aims to describe the biophysical and socio-economic conditions of Mount Mahawoe Protected Forest area and examine the strategy of the development of Mount Mahawoe Protected Forest area into the Great Forest Park area in terms of policy, institutional and potential of the area.This research was conducted by using survey method and interview to formal and informal parties by using open question questionnaire. Based on the SWOT analysis, there are 20 (two pulse strategies) that can be taken as an alternative strategy in achieving the objectives of Mahawoe Mountain forest area development into Tahura such as maintaining community commitment and participation, developing the role of NGOs and community leaders around the Mahawoe Mountain area in forest area development activities, establishes priority target locations that directly impact the protection of the hydrological system, develops species of economic and ecological value, builds stakeholder participation and cooperation in controlling the sale and purchase of land in the Mount Mahawoe protected forest area.     Keywords : Mount Mahawoe, Protected Forest, and Tahura.

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