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AGROEKOTEKNOLOGI

agroekoteknologi
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Published by Universitas Sumatera Utara

ISSN : 23376597 EISSN : - DOI : -

Core Subject : Agriculture,

Agriculture, Biological Sciences & Forestry

Jurnal AGROEKOTEKNOLOGI merupakan jurnal ilmiah yang diterbitkan secara online berisikan hasil-hasil penelitian tentang hama dan penyakit tumbuhan, agronomi, pemuliaan tanaman dan ilmu tanah

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Articles 943 Documents

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KEANEKARAGAMAN ARTHROPODA PADA TANAMAN JAGUNG TRANSGENIK Daniel T Tambunan; Darma Bakti; Fatimah Zahara
Jurnal Agroekoteknologi Vol 1, No 3 (2013)
Publisher : Universitas Sumatera Utara

Biodiversity of arhtropoda on the transgenic corn. The objective of this research was to studyinfluence of variety introduction of varieties arthropoda in transgenic corn. This research was takenat Balai Benih Tanaman Palawija, Kelurahan Tanjung Selamet, Medan start on March 2012 untilMay 2012. This research used 3 design traps of insect (pitfall trap, sweep net, sticky trap),andrepeated three times. The result of research showed that the highest insect value was caught insweet corn area was consist of 9 ordo, 23 family and 31 species and the lowest insect value intransgenic corn area was consist of 9 ordo, 22 family and 31 species. The highest relative frequencyvalue in sweet corn area was 11.4482 % and the lowest was 0.1718 %. The highest relativefrequency value in transgenic corn area was 18.6597 % and the lowest was 0.0343 %. The highestaccuraty relative value in sweet corn area was 4.2858 % and the lowest was 1.4286 %. The highestaccuraty relative value in transgenic corn area was 3.9473 % and the lowest was 1.3157 %.Shanon-Weiner (H’) Index varieties value of insect highest in sweet corn area is 2.8995 (medium),and in the transgenic corn area was 2.6455 (medium).Keywords : biodiversity. Arthropoda. transgenic Corn

UJI KETAHANAN BEBERAPA VARIETAS JAGUNG (Zea mays L.) TERHADAP PENYAKIT KARAT DAUN (Puccinia polysora Underw.) DI DATARAN RENDAH Denny Irawan; Hasanuddin Hasanuddin; Lahmuddin Lubis
Jurnal Agroekoteknologi Vol 1, No 3 (2013)
Publisher : Universitas Sumatera Utara

Test of resistance of some varieties of corn (Zea mays L.) on leaf rust (Puccinia polysora Underw.)on lowland. The aim of the research was to know the resistance of some varieties of corn (Z. mays)on the leaf rust (P. polysora) on lowland. The research was conducted at Tanjung Selamat village,Medan. The research used cluster random design with ten treatments and three repetitions. Theresults of the research showed that the varieties of resistance were found in the varieties of Pioneer12, Bisi 12, Bisi 12, SHS 2. SHS 12, and DK 3. Tolerant varieties were found in the varieties ofPioneer 23, BISI 2, NK 22, and NK 99. The highest production was found in BISI 12 (6.51 tons/ha)and the lowest production was found in Pioneer 23 (4.02 tons/ha).Keywords : varieties of corn, Puccinia polysora Underw., leaf rust, varieties of resistance

PENGARUH PERLAKUAN PEMATAHAN DORMANSI TERHADAP VIABILITAS BENIH AREN (Arenga pinnata Merr.) Desy Manurung; Lollie Agustina P.Putri; Mbue Kata Bangun
Jurnal Agroekoteknologi Vol 1, No 3 (2013)
Publisher : Universitas Sumatera Utara

The objective of this research were to study the influence of dormancy breaking methods on sugarpalm seed viability. This research was conducted at screenhouse in Agriculture Faculty, Universityof North Sumatera, Medan (± 25 m asl) from June-September 2012, using completely randomizeddesign with 8 treatments (control, water soaking 50ºC, 0.1%KNO3, 0.3%KNO3 , 0.5%KNO3 and0.1%HCl, 0.2%HCl, 0.3%HCl) with 4 replications. The results showed that dormancy breakingmethods were significantly effect to axis embryo length (5 week after planted), germinating time,viability, plant height, diameter bar, numbers root, root length, fresh weight, dry weight and werenot significantly to axis embryo length 4 WAP, normal sprout, abnormal sprout and the numberleaf extent.Keywords : dormancy, sugar palm,viability

UJI PATOGENISITAS Bacillus thuringiensis dan Metarhizium anisopliae TERHADAP MORTALITAS Spodoptera litura Fabr (Lepidoptera: Noctuidae) DI LABORATORIUM Desy Yanti Tampubolon; Yuswani Pangestiningsih; Fatimah Zahara; Fatiani Manik
Jurnal Agroekoteknologi Vol 1, No 3 (2013)
Publisher : Universitas Sumatera Utara

Uji patogenisitas Bacillus thuringiensis dan Metarhizium anisopliae terhadap mortalitasSpodoptera litura Fabr (Lepidoptera: Noctuidae) di laboratorium. Penelitian ini bertujuan untukmendapatkan konsentrasi yang tepat yaitu B. thuringiensis dan M. anisopliae terhadap mortalitaslarva S. litura di laboratorium. Dilaksanakan di Laboratorium Balai Penelitian Tanaman BuahTropika Kebun Percobaan Tongkoh-Berastagi pada bulan Juli sampai Agustus 2012. Metode yangdigunakan adalah Rancangan Acak Lengkap (RAL) Non Faktorial, dengan tujuh perlakuan.Kontrol, B1 (B. thuringiensis 10 gr/ liter air), B2 (B. thuringiensis 20 gr/ liter air), B3(B. thuringiensis 30 gr/ liter air), M1 (M. anisopliae 10 gr/ liter air), M2 (M. anisopliae 20 gr/ literair), M3 (M. anisopliae 30 gr/liter air), dengan tiga ulangan. Hasil penelitian menunjukkan bahwapersentase mortalitas yang efektif berturut-turut terdapat pada perlakuan B3 (B. thuringiensis30 gr/ liter air ) (100%) dan B2 (B. thuringiensis 20 gr/ liter air) (90%), oleh B1 (B. thuringiensis10 gr/ liter air) (80%), M3 (M. anisopliae 30 gr/ liter air) (76,67%), dan yang kurang efektifterdapat pada perlakuan M2 (M. anisopliae 20 gr/ liter air) (56,67%) dan M1 (M. anisopliae 10 gr/liter air) (43,33%).Kata kunci: konsentrasi, Spodoptera litura Fabr, bioinsektisida, mortalitas

RESPONS KETAHANAN LIMA VARIETAS CABAI MERAH (Capsicum annum L.) TERHADAP BERBAGAI KONSENTRASI GARAM NaCl MELALUI UJI PERKECAMBAHAN Didik Triadi; T. Chairun Nisa; Sanggam Silitonga
Jurnal Agroekoteknologi Vol 1, No 3 (2013)
Publisher : Universitas Sumatera Utara

The aim of the research was to find out resistance of the five varieties of chili pepperto various concentrations of NaCl salt by Germination Test. The research wasconducted in the seed technology laboratory of the Faculty of Agriculture, Universityof North Sumatera on December 2011. The research used Randomized Block Designwith two factors and three replication. The first factor was variety, consisting of fivevarieties, namely Laris, Mario, TM 007, TM 999, and Hot Star. The second factor wassalt concentration, consisting 4 levels, namely G0(0 ppm), G1 (1000 ppm), G2 (2000ppm), and G3 (3000 ppm). The parameters observed in this research were germinationpercentage, germination rate, percentage of normal and abnormal seedlings,percentage of dead seeds, seedling fresh weight and seedling height. The resultsshowed that varieties significantly effected germination rate, percentage of deadseeds, seedling fresh weight and seedling height. While salt concentration did notshow any significant affect on all parameters. It can be concluded that among thevarieties tested, the Mario variety showed best tolerance to NaCl salt, the leasttolerance was Hot Star.Keywords : red chili, variety, NaCl, germination

PERTUMBUHAN DAN PRODUKSI JAGUNG MANIS (Zea mays sacaratha Sturt. L) PADA BERBAGAI JARAK TANAM DAN WAKTU OLAH TANAH Evy Thyrida Silaban; Edison Purba; Jasmani Ginting
Jurnal Agroekoteknologi Vol 1, No 3 (2013)
Publisher : Universitas Sumatera Utara

The aim of the research was to evaluate the growth and production of sweet corn (Zea mays sacharata Sturt. L) planted at various distance and land preparation (soil tillage prior to planting). The treatments were arranged in split plot design with three replication. The study consists of two factors, as main plot was time of soil tillage prior to planting (one and seven days) whereas sub plot was planting distance consist of four different spaces : 70cm x 10cm, 70cm x 20cm, 70cm x 30cm dan 70cm x 40cm. Result showed that the plant spacing consists of 70cm x 40cm performs significant effect on number of leaves, stem diameter, cob diameter, and production per plant, but not significant effect on flowering time and number of cobs per plot. The interaction between time of planting and planting space had no significant effect on plant height, number of leaves, stem diameter, days to flowering, cob diameter, number of cobs per plot, weight of cobs per plot and production per plant. Keywords: sweet corn, plant spacing and tillage time

PEMANFAATAN LIMBAH Sargassum polycystum DARI INDUSTRI FARMASI SEBAGAI PUPUK CAIR SERTA PENGARUHNYA TERHADAP SIFAT KIMIA TANAH ULTISOL DAN PERTUMBUHAN TANAMAN SAWI Hafsah Winda Nst1 Hafsah Winda Nst1 Hafsah Winda Nst1; Alida Lubis; Supriadi Supriadi
Jurnal Agroekoteknologi Vol 1, No 3 (2013)
Publisher : Universitas Sumatera Utara

The aim of this research to know the effect of seaweed liquid fertilizer (Sargassum polycystum) made from waste materials on the growth and production of mustard (Brassica juncea L.) on ultisol. This research was held in gauze house, Chemistry/Soil Fertility Laboratory and Research Laboratory, Agricultural Faculty, University of North Sumatra, Medan in June-September 2012. The sample of soil to used is ultisol. The research used a Completely Randomized Design (CRD) Non Factorial with nine treatments and three replications that are twenty-seven experimental units. Treatment consists of P0 (Control), Pa2 (EM-4 20 cc with liquid seaweed fertilizer every 2 days), Pa3 (EM-4 20 cc with liquid seaweed fertilizer every 3 days), Pa4 (EM-4 20 cc with liquid seaweed fertilizer every 4 days), Pa5 (EM-4 20 cc with liquid seaweed fertilizer every 5 days), Pb2 (EM-4 40 cc with liquid seaweed fertilizer every 2 days), Pb3 (EM-4 40 cc with liquid seaweed fertilizer every 3 days), Pb4 (EM-4 40 cc with liquid seaweed fertilizer every 4 days), Pb5 (EM-4 40 cc with liquid seaweed fertilizer every 5 days). The result of experiments showed that seaweed liquid fertilizer different is not real to pH of soil, C-organic of soil, N soil, K-exchange, C/N of soil. But, real different to the P-available of soil, fresh weight of plants, fresh weight of root, dry weight of plant and dry weight of root. Keywords: Polycystum sargassum, Seaweed fertilizer, Mustard (Brassica juncea L).

IDENTIFIKASI KARAKTER MORFOLOGIS SALAK SUMATERA UTARA (Salacca sumatrana Becc.)DI BEBERAPA DAERAH KABUPATEN TAPANULI SELATAN Hilda Mei Yeni Harahap; Eva Sartini Bayu; Luthfi A. Mahmud Siregar
Jurnal Agroekoteknologi Vol 1, No 3 (2013)
Publisher : Universitas Sumatera Utara

The objective of the research was to identify morphological characters and phylogenetic relationship among Salacca sumatrana at South Tapanuli Region. The study conducted in June to August 2012 at Sibio-bio Angkola Timur, South Tapanuli (+ 1100 m asl), Siamporik Angkola Selatan (+ 900-1100 m asl) , and Parsalakan Angkola Barat (+ 1200 m asl). The method to use descriptive method, purposive sampling method and than cluster method to see relationship Sumatra salak at South Tapanuli. The results obtained from the three villages were simililarity morphological characters such as caulis form, folium form, folium color, vagina color, spina color, flos malculus color and hermafroditus and sphata color. From phylogenetic relationship Salacca sumatrana in three villages Tapanuli Selatan the similarity is 63,77% which grouped into 2 groups. That higest similarity from village Parsalakan sampel C6 with C9equal to 98,65%,, while that lowest similarity from village Sibio-bio sampel A1 with A2 equal to 63,77%. Key word : salacca, identification, morphological characters, descriptive method

EVALUASI KEMAMPUAN LAHAN DESA SIHIONG, SINAR SABUNGAN DAN LUMBUN LOBU KABUPATEN TOBA SAMOSIR Julpan Lynneus Sitohang; Sitorus Sitorus; Mariani Sembiring
Jurnal Agroekoteknologi Vol 1, No 3 (2013)
Publisher : Universitas Sumatera Utara

Land capability evaluation is an evaluation of land potential for use of various farming systems in general without specifying the allocation to certain crops and management actions. The research was conducted in April of 2012. The purpose of this study was to determine the land capability class on Sihiong, Sinar Sabungan and Lumban Lobu Village Toba Samosir Distric with the method of limiting factors and matching according to land capability class Arsyad (1989). Analysis of the soil such as soil texture, permeability, bulk density, salinity and organic material are conducted in the Laboratory of Research and Technology, Faculty of Agriculture, University of North Sumatra and field observations such as slope, erosion factors, soil depth, drainage, gravel / rock and inundation / flood hazard. The results showed that areas Sihiong, Sinar Sabungan and Lumban Lobu has actual land capability class is the same class III (es), Class III is in which land can be used for the production of crops and forests, (es) an limiting factor on erosion and the depth of the root zone or soil (solum). So the capability class of potential land become III (s), which (s) is a limiting factor on the rooting area only. Keywords: evaluation of land capability, survey, BPS Tobasa

RESPONS PERTUMBUHAN DAN PRODUKSI BAWANG MERAH (Allium ascalonicum L.) TERHADAP PEMBERIAN PUPUK NPK DAN Tithonia diversifolia (Hemsl.) Gray Koko Elieser Ginting; Rosanty Rosanty Ratna; Hanum Hanum
Jurnal Agroekoteknologi Vol 1, No 3 (2013)
Publisher : Universitas Sumatera Utara

Application of inorganic fertilizers continuously without the use of organic fertilizers has caused the degradation of agricultural land. The negative impacts caused by land degradation is a decline in agricultural yield, such as the yield of shallot. A solution to solve this problem is to combination inorganic with organic fertilizers exactly. So, the research was conducted to investigate combination of NPK fertilizer and Tithonia diversifolia on growth and production of shallot which is use Randomized Block Design with two factors. First factor is NPK fertilizer (0, 200, 400, 600 kg/ha) and the second factor is Tithonia diversifolia (0, 12500, 25000, 37500 kg/ha). The results showed that the treatment of NPK fertilizer non significantly affect to all parameters and the highest production at dosage 400kg/ha (597,25 g/1,2m2). Tithonia diversifolia treatment non significantly affect to all parameters and the highest production at dosage 25000 kg/ha (578,48g/1,2 m2). The interaction between the NPK fertilizer and Tithonia diversifolia significantly affect to the shoot root ratio parameter.The highest shoot root ratio at treatment combination of NPK fertilizer at dosage 600 kg/ha and Tithonia diversifolia at dosage 12500 kg/ha(510,59).The highest production at treatment combination of NPK fertilizer at dosage 400 kg/ha and Tithonia diversifolia at dosage 25000 kg/ha (739,55 g /1,2 m2). Key words: shallot, NPK fertilizer, Tithonia diversifolia

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