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UJI KETAHANAN BERBAGAI VARIETAS TANAMAN KEDELAI (GLYCINE MAX. L) TERHADAP HAMA LAMPROSEMA INDICATA Muhammad Dirga Patria; Darma Bakti; Ameilia Zuliyanti Siregar
Jurnal Agroteknologi Vol 11, No 2 (2021): Februari 2021
Publisher : Universitas Islam Negeri Sultan Syarif Kasim Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24014/ja.v11i2.9107

Abstract

This research aims to determine the resistance of variance of soybean (Glycine max L) varieties to Lamprosema indicata in the field. This research was conducted in Banyumas Village, Stabat sub-district, Langkat Regency, North of Sumatra, from March 2019 until May 2019. This research used by a descriptive method with observational techniques consisting of 15 plots and 225 sample plants. The results of the study showed the resistance and intensity of attacks larvae of L. indicataon leaf of each variety, namely the Dena (average of 10.33 larvae and 24%); followed by Dega consists of 8.17 larvae and 18%, then Detap showed of 6.00 larvae which 12%. Meanwhile, Devon (7.83 larvae and 14%) and Anjasmoro with an average of 7.67 larvae and 13%.Variety of soybean of Data was resilience of attack of L. indicate in the field, while Dena is very susceptible to attack of L. indicate. 
Penggunaan Ekstrak Biji Pinang untuk Mengendalikan Hama Keong Mas (Pomacea canaliculata Lamarck) pada Tanaman Padi Wiwik Yunidawati; Darma Bakti; B. Sengli J. Damanik
Jurnal Ilmu Pertanian KULTIVAR Vol 5, No 2 (2011)
Publisher : Jurnal Ilmu Pertanian KULTIVAR

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Abstract

Aplikasi ekstrak pinang dapat digunakan untuk mengendalikan hama keong mas pada tanaman padi. Tujuan penelitian ini adalah mendapatkan konsentrasi ekstrak pinang yang efektif pada populasi keong mas tertentu. Penelitiaan dilaksanakan pada bulan Desember 2010 sampai dengan April 2011 di Rumah Kasa Laboratorium Pengamatan Hama Penyakit Tanaman dan Agens Hayati Tanjung Morawa di UPT Balai Benih Induk Padi Murni Tanjung Morawa Kabupaten Deli Serdang Sumatera Utara. Metoda penelitian yang digunakan adalah Rancangan Acak Kelompok (RAK) Faktorial yang terdiri dari 2 (dua) faktor dengan 3 (tiga) ulangan. Faktor pertama adalah Ekstrak pinang  yang terdiri dari 4 (empat) taraf yaitu tanpa ekstrak pinang, 30 cc dan 40 cc/l air ekstrak pinang. Faktor kedua adalah populasi keong emas terdiri dari 4 (empat)  taraf (tanpa keong mas, 8, 16 dan 24 ekor keong mas/16 m2.  Pengendalian hama keong mas terbaik dijumpai pada pemberian ekstrak pinang sebanyak 40 cc/l air. Adapun jumlah populasi keong mas yang diinvestasikan pada tanaman padi memberi pengaruh terhadap persentase tanaman terserang, sehingga menyebabkan jumlah anakan per rumpun menurun. Perlakuan ekstrak pinang dan jumlah keong mas yang diinvestasikan pada tanaman padi,  tidak menunjukkan hubungan yang nyata terhadap  jumlah anakan per rumpun. Kata kunci: ekstrak pinang, keong mas, tanaman padi, kontrol.
Kemampuan Actinote anteas Doub. (Lepidoptera:Nymphalidae) sebagai Serangga Pemakan Gulma Darma Bakti; Marheni Marheni; Isnar Reza
Jurnal Ilmu Pertanian KULTIVAR Vol 4, No 2 (2010)
Publisher : Jurnal Ilmu Pertanian KULTIVAR

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Abstract

Penelitian ini bertujuan untuk mengetahui Persentase Serangan Actinote anteas Doub. pada gulma Chromolaena odorata dan Mikania micrantha dan mengetahui status serangga Actinote anteas Doub. ketika diujicobakan pada tanaman yang bukan gulma. Penelitian ini dilaksanakan di Insektarium, Departemen Hama dan Penyakit Tumbuhan, Fakultas Pertanian Universitas Sumatera Utara, Medan pada bulan Agustus 2010 sampai Oktober 2010. Penelitian dilaksanakan 2 tahap yaitu Tahap I menggunakan Rancangan Acak Lengkap (RAL) Faktorial yang terdiri dari 2 faktor yaitu faktor jumlah ulat dan jenis gulma dengan 9 kombinasi perlakuan dan diulang sebanyak tiga kali. Tahap II menggunakan Rancangan Acak Lengkap (RAL) non faktorial dengan 3 kombinasi perlakuan dan diulang sebanyak tiga kali. Hasil penelitian Tahap I menunjukkan persentase serangan tertinggi terdapat pada gulma Mikania micrantha di infestasikan 10 ekor ulat Actinote anteas Doub.(G1U2) sebesar 74,86% dan terendah pada Chrysanthenum indicum di infestasikan 5 ekor ulat Actinote anteas Doub (G3U1) dan (Chrysanthenum indicum dengan 10 ekor ulat Actinote anteas Doub.(G3U2) dan kontrol masing-masing sebesar 0,00 %. Pada penelitian uji Tahap II menunjukkan intensitas serangan tertinggi terdapat pada perlakuan F2 Mikania micrantha sebesar 69,58% yang dipasangkan dengan tanaman Chrysanthenum indicum sebesar 0,00% di infestasikan 10 ekor ulat Actinote anteas Doub. Sedangkan yang terendah pada F3 Chromolaena odorata sebesar 57,01 % yang dipasangkan dengan tanaman Chrysanthenum indicum sebesar 0,00% di infestasikan 10 ekor ulat Actinote anteas Doub. Status serangga Actinote anteas Doub. bukanlah sebagai hama ketika di infestasikan ke tanaman Chrysanthenum indicum yang bukan gulma. Kata kunci: Chromolena odorata, A. anteas, pengendalian hayati.
STUDI KANDUNGAN LOGAM BERAT TEMBAGA (Cu) DAN TIMBAL (Pb) DI PERAIRAN DANAU TOBA, PROVINSI SUMATERA UTARA (Study of Heavy Metal of Copper (Cu) and Lead (Pb) in Lake Toba, North Sumatera Province) Hiras Sucipto Tampubolon; Darma Bakti; Indra Lesmana
AQUACOASTMARINE Vol 1, No 1 (2013): JURNAL AQUACOASTMARINE VOLUME 1, NO 1, DESEMBER 2013
Publisher : Program Studi Manajemen Sumberdaya Perairan, Fakultas Pertanian Universitas Sumatera Utara

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Abstract

The Purpose of Lake Toba were very diverse and required water qualityand fulled certain requirements. Otherwise, the used of the lake for the variousactivities of the society also gave impact to water quality degradation. Thisresearch were conducted from May to July 2013 in Lake Toba. This research usedPurpossive Random Sampling. There were 3 locations. Station I: Ajibata area,Station II: Haranggaol area and Station III: Porsea as the outlet of Lake Toba.Sampling activities were conducted once/month. This research aimed to knewheavy metal consentrate of Lead (Pb) and Copper (Cu) in water and sediment.This results showed indicated chemical physics parameter of Lake Tobastilled in the normal range. Concentrations of copper (Cu) in the water column ateach station in sequence 0.027 mg/l, 0.025 mg/l, 0.033 mg/l and the concentrationof lead metal (Pb) in the water column 0.039 mg/l, 0.014 mg/l, 0.029 mg/l. Whilemetal concentrations of copper (Cu) in sediments at each station in sequence1.092 mg/kg, 2.85 mg/kg, and 2.483 mg/kg and the concentration of lead metal(Pb) of 3,058 mg/kg, 3.592 mg/kg and 2,833 mg/kg. These results indicated theconcentration of heavy metal Cu and Pb in the water column had exceeded thequality standard, while concentrations of Cu and Pb in sediments had notexceeded the quality standard.Keyword: Cuprum (Cu), Lead (Pb), Toba Lake, Water Quality
Pengaruh Beberapa Jenis Pakan Terhadap Pertumbuhan Populasi Brachionus spp The Effect of Some Types of Food to Brachionus spp Population Growth Henny Fitriani S; Darma Bakti; Nurmatias Nurmatias
AQUACOASTMARINE Vol 2, No 2 (2014): JURNAL AQUACOASTMARINE VOLUME 2, NO 2, DESEMBER 2014
Publisher : Program Studi Manajemen Sumberdaya Perairan, Fakultas Pertanian Universitas Sumatera Utara

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Abstract

Natural food that has a high protein content, easily digestible and small sized could be found in Rotifers genus Brachionus. However, due to the complication of cultivating, it has low rate production. The purpose of this research was to identify appropriate food and to idenfity maximum time of rotifer’s growth The methods used experimental and observation by directly observing the population growth of Brachionus spp. The experiment using a Completely Randomize Design with 4 treatment and 3 repetition. Four treatments include A (Brachionus spp + phytoplankton), B (Brachionus spp + soya bean production waste), C (Brachionus spp + baker”s yeast), dan D (Brachionus spp + vitamin B-Complex).The result showed that there were different population of Brachionus spp to each treatment. The highest population could be found in the soya bean production waste with population value 201x104 ind/ml. The highest population was reached in the eighth day. It revealed that Branchionus spp with high value could be produced in the soya bean production waste and the optimum time was in the eighth day after the spreading.Keywords: Brachionus spp, Population Growth, Soya Bean Production
STUDI KOMPOSISI MAKANAN IKAN SEPAT RAWA (Trichogaster trichopterus Pallas) di RAWA TERGENANG DESA MARINDAL KECAMATAN PATUMBAK Hadi Syahputra; Darma Bakti; Muhammad Riza Kurnia
AQUACOASTMARINE Vol 2, No 3 (2014): JURNAL AQUACOASTMARINE VOLUME 2, NO 3, DESEMBER 2014
Publisher : Program Studi Manajemen Sumberdaya Perairan, Fakultas Pertanian Universitas Sumatera Utara

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Abstract

The fresh water in Indonesia has signifikan potential To be exploited as fish cultivation. Food as a component of waters is a ecology factor and have an important role in determining the rate of populations density, population dynamics, growth, reproduction and fish condition. This research aimed to know the composition of three spot gourami’s food ,and broad niche. This research was held on November-December 2013 In Marindal village of Swamp Subdistrict Patumbak, North Sumatera. This study use a grap nets, and fishing trap. The Data analysis was index of the stomach, The frequency of occurrence and niche.The result showed that foods found in fishes intestinal consists of 13 genera Bacillariophyceae, 4 genera Chlorophyceae, 1 genera Conjugatophyceae, 4 genera Coscinodiscophyceae, 3 genera Cyanophyceae,1 genera Euglenophyceae, 1 genera Filosia, 1 genera gastropoda. 1 genera monogonta, dan 1 genera secernentea. The main food is Bacillariophyceae. Chlorophyceae, Cyanophyceae, Conjugatophyceaeas were complements food and Coscinodiscophyceae, Euglenophyceae , Gastropoda, Filosia, Monogonta, Secementea were additives food.Keyword : Swamps, Food composition, Food habits, Trichogaster trichopterus, Patumbak.
ANALISIS KANDUNGAN LOGAM BERAT TIMBAL (Pb) DI AIR DAN SEDIMEN PADA ALIRAN SUNGAI PERCUT PROVINSI SUMATERA UTARA (Analysis Heavy Metal Lead (Pb) Content in water and sediment in Percut River, North Sumatera) Irfan Al Husainy; Darma Bakti; Rusdi Leidonald
AQUACOASTMARINE Vol 2, No 4 (2014): JURNAL AQUACOASTMARINE VOLUME 2, NO 4, DESEMBER 2014
Publisher : Program Studi Manajemen Sumberdaya Perairan, Fakultas Pertanian Universitas Sumatera Utara

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Abstract

The river is one of the old used by man for a variety of activities in life, with the decline in the quality of human needs and river due to the presence of one of the various waste pollution accidents are heavy metals. This research aims to analyze the content of Pb and water quality standards based on raw fachir PP No 82 of 2001 by using the method tsoret and determine any metal Pb in sediment and ascertaining the quality of sediment based on raw IACD / CEDA. This research was carried out in November-Desember, 2013.The sample using methods purposive sampling by observing three stations. Parameters observed fisika-kimia waters, is the parameter pb on heavy metal concentration and sediments using atomic there water absorption spectrophotometry ( AAS). The level of heavy metals are on board in the highest station of a 0,08 mg / l based by Government Regulation no. 82 of 2001 and the quality of being inducted into a second. Calamity tackling in the metals concentration is found in sedimentary highest station of 2.7 mg / kg, based on environmnetal quality standars iacd / ceda and still classified as low, the sediment yet exceeding quality standards.Keyword : Storet Method and level of pollution Pb in water, sediment, Percut River
STUDI KOMPOSISI MAKANAN IKAN SEPAT RAWA (Trichogaster trichopterus Pallas) di RAWA TERGENANG DESA MARINDAL KECAMATAN PATUMBAK Hadi Syahputra; Darma Bakti; Muhammad Riza Kurnia
AQUACOASTMARINE Vol 2, No 4 (2014): JURNAL AQUACOASTMARINE VOLUME 2, NO 4, DESEMBER 2014
Publisher : Program Studi Manajemen Sumberdaya Perairan, Fakultas Pertanian Universitas Sumatera Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (515.452 KB)

Abstract

The fresh water in Indonesia has signifikan potential To be exploited as fish cultivation. Food as a component of waters is a ecology factor and have an important role in determining the rate of populations density, population dynamics, growth, reproduction and fish condition. This research aimed to know the composition of three spot gourami’s food ,and broad niche. This research was held on November-December 2013 In Marindal village of Swamp Subdistrict Patumbak, North Sumatera. This study use a grap nets, and fishing trap. The Data analysis was index of the stomach, The frequency of occurrence and niche.The result showed that foods found in fishes intestinal consists of 13 genera Bacillariophyceae, 4 genera Chlorophyceae, 1 genera Conjugatophyceae, 4 genera Coscinodiscophyceae, 3 genera Cyanophyceae,1 genera Euglenophyceae, 1 genera Filosia, 1 genera gastropoda. 1 genera monogonta, dan 1 genera secernentea. The main food is Bacillariophyceae. Chlorophyceae, Cyanophyceae, Conjugatophyceaeas were complements food and Coscinodiscophyceae, Euglenophyceae , Gastropoda, Filosia, Monogonta, Secementea were additives food.Keyword : Swamps, Food composition, Food habits, Trichogaster trichopterus, Patumbak.
KEANEKARAGAMAN MAKROZOOBENTOS SEBAGAI INDIKATOR KUALITAS PERAIRAN DANAU SIOMBAK KECAMATAN MEDAN MARELAN KOTA MEDAN The Diversity of Macrozoobenthic as Water Quality Indicators of Siombak Lake District of Medan Marelan in Medan City Achmad Taher Daulay; Darma Bakti; rusdi leidonald
AQUACOASTMARINE Vol 3, No 1 (2015): JURNAL AQUACOASTMARINE VOLUME 3, NO 1, PEBRUARI 2015
Publisher : Program Studi Manajemen Sumberdaya Perairan, Fakultas Pertanian Universitas Sumatera Utara

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Abstract

Siombak is the artificial lake formed as the result of sand dredging activities in an area formerly known as Paya Pasir. The purpose of this study was to determine the water physical and chemical parameters of Siombak Lake in conjunction with water quality standards at PP 82 Tahun 2001 and Storet methods as well as the diversity of macrozoobenthic.This study was conducted from May to July 2014 at the Siombak Lake District of Medan Marelan in Medan City. The results obtained, the relationship between water chemical physical parameters of Siombak Lake in reference to water quality standards at PP 82 Tahun 2001 and Storet method states that the waters of Siombak Lake belong to the C class with the condition of water being moderately contaminated.The value of diversity index (H') of macrozoobenthic were obtained at each station study ranged from 1,091 to 1,480. The results of Pearson correlation analysis showed that temperature, COD, phosphate, light penetration and BOD5 have a positive correlation with the diversity of macrozoobenthic while salinity, DO and nitrate have a negative correlation.Keywords: Siombak lake, Diversity of Macrozoobenthic, Water Quality
ASPEK BIOLOGI REPRODUKSI IKAN LEMEDUK (Barbodes schwanenfeldii) DI SUNGAI BELUMAI KABUPATEN DELI SERDANG PROVINSI SUMATERA UTARA Siti Aisyah; Darma Bakti; Desrita Desrita
AQUACOASTMARINE Vol 3, No 1 (2015): JURNAL AQUACOASTMARINE VOLUME 3, NO 1, PEBRUARI 2015
Publisher : Program Studi Manajemen Sumberdaya Perairan, Fakultas Pertanian Universitas Sumatera Utara

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Abstract

The purpose of this research is to know the reproduction (the sex ratio, the gonad maturity level, the gonad maturity index, the size of the first mature gonad, fecundity, and the egg diameter). This research was done in May until June 2014 in four different locations by using census method. The sex ratio is consisting of 21 females fishes and 34 male fishes with a balanced sex ratio. The maturity gonad level for lemeduk female and male are found in I–IV. The gonad maturity index for female is 0,05% – 9,66% and for male is 0,05% – 9,75%. The size of the first mature gonad for male fish is 193 mm. The fecundity of female lemeduk is 5.345–54.372 eggs. The distribution of the female lemeduk egg diameter is 0,068–0,1202 mm.Keyword : Belumai River, Fish reproduction, Barbodes schwanenfeldii.,
Co-Authors Achmad Taher Daulay Ade Artia Gultom Ameilia Zuliyanti Siregar Ani Suryanti B. Sengli J. Damanik Desrita Desrita Dita Agnesia Febrina Arli Febrina Rahmadanti Putri Hadi Syahputra Henny Fitriani S Hiras Sucipto Tampubolon Huria Marnis Indra Lesmana Irfan Al Husainy Isnar Reza Marheni Brahmana Marheni Marheni Muhammad Dirga Patria Muhammad Riza Kurnia Nur Basani Pasaribu Nurmatias Nurmatias Putri Widyawati Rasyid Kurnia Nasution Rusdi Leidonald Siti Aisyah Tawakal Kusuma Tommy Patria Marbun Tri Woro Widyastuti Tri Yaninta Ginting Uswatun Nisa Wiwik Yunidawati Zulham Apandy Harahap