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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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Resistance test of rice (Oryza sativa) varieties by Paraeucosmetus pallicornis Dallas. (Hemiptera: Lygaedae) in the screen house cici khairi gusnarsih; cyccu - tobing; mukhtar iskandar pinem
Jurnal Agroekoteknologi Vol 7, No 2,April (2019)
Publisher : Universitas Sumatera Utara

The research was aimed to determine the resistance of rice plant varieties against Paraeucosmetus pallicornis in screen house. This research was conducted in the screen house of Universitas Sumatera Utara from July until November 2017 using factorial randomized block design (RBD) with two factors and four replications. The first factor was the time of introduction (4, 6, 8, 10 weeks after planting) and the second factor was rice varieties (Ciherang, Inpari 32, Mekongga, dan Mapan P-05). The results showed that all of varieties was classified as scale 1 (resistant) against P. pallicornis. The highest ratio the intensity of attack tested based on time introduction was 10, 4 , 8, and 6 wap respectively. Key words : Paraeucosmetus pallicornis, rice, plant resistance, variety

Effectivity assay of several PGPR strains for controlling collar rot disease (Athelia rolfsii (Curzi)) on soybean (Glycine max (L.) Merril). Widya Antastia; Irda Safni; Ameilia Zuliyanti Siregar
Jurnal Agroekoteknologi Vol 7, No 2,April (2019)
Publisher : Universitas Sumatera Utara

A. rolfsii (Curzi) is a cosmopolitan fungus which infects a large varieties of plants, especially the young one. This study was aimed to test the effectivity of 5 types of plant growth promoting rhizobacteria (PGPR) in suppressing the growth of Athelia rolfsii (Curzi) and to obtain the most effective type of PGPR for controlling disease severity and incidence A. rolfsii. This research was conducted at Plant Disease Laboratory and at the screen house at Faculty of Agriculture, Universitas Sumatera Utara, Medan from March 2017 until August 2017. The research used by non Factorial Randomized Block Design with 7 treatment combinations and 4 replications: R0 (Control), R1 (A. rolfsii), R2 (A. rolfsii+Aeromonas hydrophila), R3 (A. rolfsii+Burkholderia cepacia), R4 (A. rolfsii+Serratia ficaria), R5 (A. rolfsii+Pantoea spp. 2), R6 (A. rolfsii+Vibrio alginolyticus). The results showed that the application of B. cepacia, Pantoea spp. 2, and V. Alginolyticus could suppress the growth of A. rolfsii, with disease incidence was 0.00 % for treatments of B. cepacia, Pantoea spp. 2, and V. alginolyticus compared to the treatment (only A. rolfsii), which was 100.00 %. The disease severity of treatments of B. cepacia, Pantoea spp. 2, and V. alginolyticus was 0.00 % compared to the treatment (only A. rolfsii), which was 50.00 %.

Effect of organic matter Mucuna bracteata and antagonist microbes (Trichoderma viride and Trichoderma harzianum) on the domination of Root Gall Nematode Meloidogyne spp. in potato in the field Raja Indra Rizki; Syahrial Oemry; Lisna Wita
Jurnal Agroekoteknologi Vol 7, No 2,April (2019)
Publisher : Universitas Sumatera Utara

ABSTRACT Root gall caused by Meloidogyne is one of threat for the production of potato plantation in Indonesia. Currently, biological controlling by using antagonist microbes and adding organic matters are more concerned to minimize the negative impacts for environment and human. Therefore, the objectiv of this research were to study the effect of organic matter Mucuna bracteata and antagonist microbes (Trichoderma viride and T. harzianum) on the domination of root gall nematode Meloidogyne spp. in potato in the field. This research was conducted in Plant Disease Laboratory, Agricultural Faculty of University Sumatera Utara, Medan and it was continued in the agriculture field in Karo Regency. The method used randomized complete block design non factorial with eight treatments (control, nematiside with active ingredient Karbofuran 3%, M. bracteata, T. viride, T. harzianum, M. bracteata + T.viride, M. bracteata + T. harzianum and T. viride + T. harzianum) and five replications. The results showed that treatment Mucuna bracteata + T. viride was the best treatment to suppress the nematode’s population with 34.40 galls and final population was about 53.03. Key words : Potato, Meloidogyne, Mucuna bracteata, Trichoderma viride, Trichoderma harzianum, Karbofuran 3%

Population Parasitoid of Larva in Different Planting Period in Tandem Hulu Plantation Land of PTPN II Sei Semayang Elfrida Sari Sinaga; Maryani Cyccu Tobing; Lisnawita Muis
Jurnal Agroekoteknologi Vol 7, No 2,April (2019)
Publisher : Universitas Sumatera Utara

Parasitoids have been introduced in PTPN II Sei Semayang to control various pests that attack the crops.This research aims to determine the diversity of parasitoid species in sugarcane fields. This research was carried out at Central research and Development of Sugarcane Crop Sei Semayang PTPN II. The method of this research used Randomized Block Design non factorial which consists of 6 planting periods (block):early April (block I), early May (block II), early June (block III), end of April (IV), end of May (V),and end of June (VI) with eight replications.The results showed that Apanthales flavipes was a parasitoid found in the field with different amounts at each block. Block I was 212 populatios, block II was 218 populations, block II was 266 populations, block IV was 187 populations, block V 194 populations, and block VI 348 populations. The highest percentage of a A. flavipes parasilization was found in block VI 1.25% and lowest percentage in block I 0.75%. The sex ratio of parasitoids : 406 males and 1019 females.

Penampilan Morfologi Akar Beberapa Hasil Persilangan (F1) Tanaman Jagung Pada Media Tanam Tanah Gambut Dengan Penambahan Bahan Organik Leguminosa Di Rhizotron Wita Purwasih; Khairunnisa lubis; Eva Sartini Bayu
Jurnal Agroekoteknologi Vol 7, No 2,April (2019)
Publisher : Universitas Sumatera Utara

The maize in indonesia mostly use land that is not fertile. The objective of the research was identified the selection character based on root morphology of hybrid maize (F1) in peat soil medium applicated with legume organic manure in rhizotron. The research was conducted at the greenhouse of Faculty of Agriculture, University of Sumatera Utara, from February until July 2017. The Randomized Block Design was used with two factors, the first factor is the population (V1, V2, V3, V4, V5) and the second factor is the planting medium (peat soil, peat soil + leucena, peat soil + mucuna). The parameters observed were: the number of root, the length of root, the diameter of root dispersed, the fresh weight of the canopy, the fresh weight of root and the dry weight of root. The result showed that the population F1 significantly affected the number of root, the volume of root, the fresh weight of root and the dry weight of root. The planting medium significantly affected the number of root, the length of root, the diameter of root dispersed, the volume of root, the fresh weight of the canopy, the fresh weight of root, the dry weight of root. Interaction between the population F1 NEI9008 x CLA46 (V5) and the planting medium peat soil + mucuna significantly affected the fresh weight of root. Keywords : maize, legume organic manure, peat soil, root morphology, rhizotron

Performance of Vegetative and Reproductive Characteristics of Multiple Outcomes (F1) of Maize (Zea mays L.) on Peat Soil applied Sludge and Ash of Oil Palm sulthan sulaiman siddik; khairunnisa lubis; hot setiado
Jurnal Agroekoteknologi Vol 7, No 2,April (2019)
Publisher : Universitas Sumatera Utara

Maize is one of the staple food crops in Indonesian that must be developed its genetic diversity. The objective of this study was to obtain the appearance of vegetative and reproductive character of some F1 maize populations on peat soil stress with pH criteria of 5.9 and peat soil with sludge and ash of oil palm. The research was conducted at Setiabudi field, Tanjung Rejo sub-district, Medan city from April to August 2017. This research used Randomized Block Design (RAK) with 2 treatment factors. The first factor is the population consisting of 5 levels:A (NEI9008 x CLA46), B: (NEI9008 x CLA106), C: (CLA106 x NEI9008),D: (CLA16 x CLA84), E: (CLA84 x NEI9008) and the second factor is planting medium consisting of 3 levels is M1 (peat soil), M2 (peat soil + ash of oil palm), M3 (peat soil + sludge). The results showed that the interaction of planting media with F1 population of maize plant had significant effect on plant height character. The best media is found in M3 (peat soil + sludge).

Potensi fusarium non patogenik untuk mengendalikan fusarium oxysforum f. sp. cubense pada tanaman pisang barangan Aulia Aghna; Lisnawita Muis; Lahmuddin Lubis
Jurnal Agroekoteknologi Vol 7, No 2,April (2019)
Publisher : Universitas Sumatera Utara

Fusarium oxysforum f. sp. cubense (Foc) is one of the important pathogens causing fusarium wilt on banana plants. This pathogen reduces the productivity of banana plants and cause more than 35 % of dead banana plant. The disease management has been done from chemical control to biological control. The use of Non Phatogenic Fusarium (FoNP) in some plants is quite effective in suppressing fusarium wilt disease. The aim of this research was to know the potency of FoNP isolates E3 and E5 (BALITTRO, Bogor) which were applied on barangan cultivar ‘barangan’ to control fusarium wilt disease. The method of this research was Randomized Complete Design Factorial withtwo isolates of-FoNP; i.e. E5 and E3. Application was conducted by immersing the banana seeds with the fungal incolum. Conidia suspension (106 conidia/ ml) and FoNP methabolites were used, with or without pathogen with the following treatments: P1 : conidia suspension E5 with Foc; P2 : conidia suspension E3 with Foc; P3 : conidia suspension E5 without Foc; P4 : conidia suspension E3 without Foc; P5 : metabolite E5 with Foc; P6 : metabolite E3 with Foc; P7 : metabolite E5 without Foc; P8: metabolite E3 with Foc; P9 : Foc; P10 : without Foc. The results showed that there weas no symptoms caused by Foc on leaves or banana herbs in the field. In the in vitro experiments, Non Pathogenic Fusarium isolates E5 and E3 could inhibit the growth of Foc with the inhibiting zone was 29. 16 % and 19. 22 % respectively. Keywords: Barangan Cultivar, Fusarium oxysforum f. sp. cubense, non pathogenic fusarium, fusarium wilt disease.

Effect of Quantity Factitious Host’s Egg Ratio, Corcyra cephalonica Stainton (Lepidoptera : Pyralidae) and Duration of Ultraviolet Radiation on Parasitization by Trichogramma (Hymenoptera : Trichogrammatidae) maman kurniawan silaban; suzanna fitriany sitepu; Syahria l Oemry
Jurnal Agroekoteknologi Vol 7, No 2,April (2019)
Publisher : Universitas Sumatera Utara

ABSTRACT The aim of this research was to find out quantity of factitious host’s eggs and duration of ultraviolet (uv) radiation which was effective in Trichogramma spp. propagation. This research used completely randomized design factorial with 2 factors. i. e, quantity factitious host’s egg ratio 1 : 6 , 1 : 7, 1 : 8, and 1 : 9 and duration of uv radiation 15 minutes, 25 minutes, and 35 minutes. The result showed that quantity of factitious host’s eggs and duration of uv radiation significantly affected to parasitize of the egg factitious host parasitization emergence and Corcyra cephalonica hatched. The highest percentage of parasitization (95.3%) was in the treatment of 1 : 6 with duration uv radiation 25 minutes, the lowest percentage of larva appeared (19.4%) occured on 35 minutes duration of uv radiation with treatment of 1 : 6, the highest percentage of imago appeared (97%) presented in 25 minutes duration of uv radiation with treatment of 1 : 6. Quantity of the best factitious host’s egg ratio with the best duration of uv radiation was also found in the treatment of 1 : 6 with duration of uv radiation 25 minutes and it was shown from the high percentage of parasitization.Key Words: Corcyyra cephalonica, duration of uv radiation, Trichogramma spp.

Studi Karakteristik Jagung Introduksi Dan Beberapa Varietas Jagung Lokal Wika Winani Syahputri Syahputri; Hot Setiado; Khairunnisa Lubis
Jurnal Agroekoteknologi Vol 6, No 2, April (2018)
Publisher : Universitas Sumatera Utara

The research was aimed to know the characteristics of vegetative and generative of introduction and some local maize varieties. The research was carried out on the land of the Centre Seed Service of Cash Crops, Departmentof Agriculture, Medan Sunggal, Deli Serdang district, from July 2016 to October 2016. The randomized block design was used with three varieties of maize (Black Aztec, Bisi2, Bonanza). Variables observed were: the plant height, the time of flowering, the time of female flowers bloomed, the time of harvested, the cob length, the number of lines per cob, the production per sample plant, the production per plot. The results showed that the three varieties of maize tested have varying diversity to the plant height, the time of male flower bloomed, the time of harveste, the cob length, the number of line per cob, the production per sample, the production per plot. The Black Aztec showed the lowest production (1005.56 grams per plot) mean while the Bonanza showed the highest production (2338.44 grams). The highest heritability and the broad of diversity coefficient were obtained in the time of male flower bloomed, the time of female flower bloomed, the time of harvested, the number of lines per cob.Key words: introduction, maize, varieties

Karakter Komponen Hasil Dan Parameter Genetik Pada Generasi M3 Rosella Gali Rakasiwi; Diana Sofia Hanafiah; Rosmayati Rosmayati
Jurnal Agroekoteknologi Vol 7, No 2,April (2019)
Publisher : Universitas Sumatera Utara

Penelitian ini bertujuan untuk mendapatkan komponen hasil dan parameter genetik pada generasi M3 rosella (Hibiscus sabdariffa L.). Penelitian ini dilakukan di Fakultas Pertanian USU, Medan dengan ketinggian tempat 32 m diatas permukaan laut dimulai dari bulan Desember 2017 sampai Mei 2018. Penelitian ini menggunakan benih populasi mutan generasi M3 yang berasal dari varietas Roselindo 2 yang telah diiradiasi sinar gamma pada penelitian sebelumnya. Data yang didapatkan diuji dengan menggunakan analisis uji-t. Parameter yang diamati adalah persentase perkecambahan, tinggi tanaman, jumlah cabang, diameter kanopi, diameter kelopak bunga, bobot buah per tanaman, bobot kelopak bunga per tanaman, jumlah kelopak bunga per tanaman, umur berbunga dan umur panen. Hasil penelitian menunjukkan bahwa adanya perbedaan komponen hasil pada karakter pengamatan yaitu bobot kelopak bunga dan jumlah kelopak bunga pada populasi kontrol dibandingkan populasi 450 Gy

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