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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 30 Documents

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Search results for , issue "Vol 6, No 4,Okt (2018)" : 30 Documents clear

The Effect of the Source of Bud Set Material and Auxin Concentrations to the Growth and Production of Sugarcane (Saccharum officinarum L.) Yohannes Kristian Immanuel Hutapea; meiriani meiriani; Asil Barus
Jurnal Agroekoteknologi Vol 6, No 4,Okt (2018)
Publisher : Universitas Sumatera Utara

The growth and production of sugarcane are mainly affected by the quality of seedling, source of bud set material and the use of plant growth regulators as a factor influencing the quality of seedling that is produced so that the amount of production will be affected. The purpose of this research is to obtain the best source of bud set material and auxin concentration for the growth and production of sugarcane. This research was held in a PT. Perkebunan Nusantara II nursery in Tanjung Jati, Kecamatan Binjai Barat (50 above the sea) on July 2016 until April 2017. This research used a randomized block design with two factors, they are the source of bud set material (top stem and under stem material) and auxin concentrations (0 NAA+0 NAAm,100 ppm NAA+25 ppm NAAm, 200 ppm NAA+50 ppm NAAm, 300 ppm NAA+75 ppm NAAm and 400 ppm NAA+100 ppm NAAm). The result of this research showed that the source of bud set materal which is originally from the under stem material was significant increasing the growth of tillers and the stems as well as the source of bud set material that is originally from the top stem material that was really increasing the growth of stem diameter and the number of plant segments. The different auxin concentrations treatment was not significant increasing the growth and production of sugarcane. The treatment interaction of source of bud set material and auxin concentrations was not significant affecting to the growth and production of sugarcane.

Selection to Stem Rot Disease Athelia rolfsii (Curzi)Resistant Level of SomeSoybean (Glycine max L. Merrill)Line and High Production on M5 Generation Mutia Rahmah; Diana Sofia Hanafiah; Luthfi Aziz Mahmud Siregar
Jurnal Agroekoteknologi Vol 6, No 4,Okt (2018)
Publisher : Universitas Sumatera Utara

This study aims to get individuals selected of some soybean Glycine max L. (Merrill) M5 generation with character resistant stem rot disease Athelia rolfsii (Curzi)and high production. This research was conducted in Plant Disease Laboratory and experimental field Faculty of Agriculture Universitas Sumatera Utara Medan, Indonesia. This research was conducted from December 2016 until July 2017. In this study using augmented design. The treatments were 15 mutant lines, the check variety were Anjasmoro, Agromulyo, and Kipas Putih varieties. The results showed that the appearance of agronomic characters observed in the inoculated medium of the fungus causes stem rot disease is lower than the optimum field without inoculation of fungus. Differences in the means values of the mutant line are in the larger stem diameter character of plant than with the inoculation of fungus. Broad sense heritability values were found in the number of pods per plant, number of seeds per plant, and seed weight per plant on the inoculated medium of the fungus and the optimum field. Selection performed on population M5resulted 7 individuals with high production character and 62 individuals with tolerance of stem rot disease character.

The Combination effect of husk-pulp compost of Durio zibethinus and chicken manure with SP-36 about Chemist characteristic and and growth of maize (Zea mays L.) on Ultisol fenidea zaneta; fauzi jamal; benny hidayat
Jurnal Agroekoteknologi Vol 6, No 4,Okt (2018)
Publisher : Universitas Sumatera Utara

The objective of this research is to know the chemist characteristic and growth of maize (Zea mays L.) due to the combination of organic material and SP-36 on Ultisol. This study used randomized block designed which consist of 2 factors and 3 replications. The first factor is organic material: A (0 ton/ha), B (30 ton/ha husk-pulp compost of Durio zibethinus), C (22,5 ton/ha husk-pulp compost of Durio zibethinus + 7,5 ton/ha chicken manure), D (15 ton/ha of husk-pulp compost of Durio zibethinus + 15 ton/ha chicken manure), E (7,5ton/ha husk-pulp compost of Durio zibethinus +22,5 ton/ha chicken manure), F (30 ton/ha chicken manure) and the second factor is SP-36 : P0 (0 kg P2O5/ha), P1 (100 kg P2O5/ha), P2 (200 kg P2O5/ha), P3 (300 kg P2O5/ha). The results showed that the combination of organic materials significantly influenced soil pH, C-Organic, P-available soil, plant height, dry weight and dry root plant. Aplication SP-36 fertilizer significantly increased P- available soil, plant height , dry weight and dry root plant. The interaction of combination of organic matter and SP-36 fertilizer significantly increased P plant uptake. Best dose on this research is 7,5 ton/ha of husk-pulp compost of Durio zibethinus and 22,5 ton/ha chicken manure and 200kg P2O5/ha of SP-36 fertilizer. Keywords: chicken manure, husk-pulp compost of Durio zibethinus, SP-36 fertilizer, Ultisol

Critical Period of Competition between Peanut (Arachis hypogaea L.) and Weed Muhammad Alghazali Adli; Edison Purba; Mbue Kata Bangun
Jurnal Agroekoteknologi Vol 6, No 4,Okt (2018)
Publisher : Universitas Sumatera Utara

The research was carried out at Tanjung Sari, Medan, where the weeds were predominated by Eleusine indica. The research was begun from November 2015 until February 2016. The weeding treatments consisted of 14 treatments (weed free from 0-2 weeks after planting (WAP); weed free from 0-4 WAP; weed free from 0-6 WAP; weed free from 0-8 WAP; weed free from 0-10 WAP; weed free from 0-12 WAP; without weeding from 0-2 WAP; without weeding from 0-4 WAP; without weeding from 0-6 WAP; without weeding from 0-8 WAP; without weeding from 0-10 WAP; without weeding from 0-12 WAP; weed free until harvest and without weeding until harvest). The treatments were arranged in randomized block design with three replicates. Parameter observed were plant height, number of branch, number of flowering, number of peas per plant, number of peas per plot, peas weight per plant, peas weight per plot, seed weight per plant, seed weight per plot, weight of 100 seed, kind of weed, dominant weed height and weed’s weight. The result showed that the weeding time for peanuts has no effect on the plant height and number of flowering, but sifnificantly affected the number of peas per plant, number of peas per plot, peas weight per plant, peas weight per plot, seed weight per plant, seed weight per plot and weight of 100 seed. The critical periode of competition between peanut and weed occurred at 14 to 35 day after planting.

The Influence Length of Heating and Concentration of Giberelin on the Viability of Arabica Coffee Seeds (Coffea arabica L.) Muhammad Sakti Harahap; Haryati Haryati; Ratna Rosanty Lahay
Jurnal Agroekoteknologi Vol 6, No 4,Okt (2018)
Publisher : Universitas Sumatera Utara

ABSTRACT The coffee germination process needed a relatively long time it because the coffee seed has a hard seed shell that is impermeable to water. To maximize the germination of coffee seeds need to be treated before planting. This research was conducted at Seed Technology Laboratory of the Agriculture Faculty, Universitas Sumatera Utara, Medan with height + 25 meter above sea level, from April to June 2017, using randomized block design with 2 factors of treatment. The first factor was the heating time with temperature 40°C with 4 levels i.e. 0, 5, 10 and 15 minutes, the second with gibberellin concentration with 4 levels i.e. 0, 250, 500 and 750 ppm. Parameter observed were growthpotential, germination rate, dead seed, vigor index, leaf appearance, hypocotyl length and root length. The results showed that the heating treatment had no significant effect on all parameter observed. Gibberellin concentration significantly affected of growth potential, dead seed and vigor index. The interaction between heating time and gibberellin concentration had no significant effect on all parameter observed. Keywords: arabica coffee seed, gibberellin, length of heating, viability

Growth and Yield The First Generation (M1V1) of Local Shallot Humbang Hasundutan Genotypes Accession of Tipang Irradiated by Gamma Ray mentored Bobby Frans Natanael; ferry ezra sitepu; Mariati sinuraya
Jurnal Agroekoteknologi Vol 6, No 4,Okt (2018)
Publisher : Universitas Sumatera Utara

The aim of the research was to determine the growth and yield the first generation (M1V1) of local shallot Humbang Hasundutan genotypes accession of Tipang irradiated by gamma ray. Research was conducted at Rianiate village, Pangururan Samosir district at altitude ± 1010 meters above sea level began from July up to October 2016. The experiment was arranged by augmented design with six level dosages of gamma irradiation i.e; 0; 2; 4; 6; 8; and 10 Gy. The data was analyzed with T test using Minitab 16 software. The Parameters observed were plant lenght, number of leaves, number of tillers, fresh and dry weight of tubers, and tuber diameter. The result showed, that the genotypes shallot that were irradiated with gamma rays at 8 Gy produced better growth and yield than control plants (unirradiated plants).

Morphological Characteristics of Pepper (Piper nigrum L.)Varieties ofNatar 1 and Natar 2 Tolerant of Shade Stress fajar setia ningrum; chairani hanum; edison purba
Jurnal Agroekoteknologi Vol 6, No 4,Okt (2018)
Publisher : Universitas Sumatera Utara

FAJAR SETIA NINGRUM: Morphological characteristics of pepper varieties of Natar 1 and Natar 2 tolerant of shade stress, guided by CHAIRANI HANUM and EDISON PURBA.Morphological observations were a preliminary identification for screening of tolerant shade plants, the ability to form chlorophyll and the initial step of the plant to be able to avoid shade stress.The research was conducted at Cengkeh Turi, North Binjai Subdistrict (32 meters above sea) from April to June 2017. Research used Split Plot Design with main plot was shade (0%, 25%, 50% and 75%) and sub plot was pepper shrub (Natar 1 and Natar 2).The results showed that the shade stress treatment had significant effect on the observed variables of plant height, the number of leaves and the calculation of chlorophyll a, the best shade level was N1 (25%) with the highest yield.Both varieties of shrimp pepper used have different responses on the number of branches, stem diameter, total leaf area, chlorophyll b, total chlorophyll, fresh crown weight, fresh root weight, canopy dry weight and root dry weight, tolerant varieties ie varieties natar 1. The number of leaves and the diameter of the stem is increased in the combination of the large-size treatment depending on the variety. Keywords: characteristics, shade, varieties of pepper.

Changes in morphological variability of shallot ( Allium ascalonicum L. ) due to colchicine and gamma irradiation Sri Yunita Simanjuntak; Diana Sofia Hanafiah; Rosmayati Rosmayati
Jurnal Agroekoteknologi Vol 6, No 4,Okt (2018)
Publisher : Universitas Sumatera Utara

This research aims to see changes in morphology variability of shallot(Allium ascalonicum L.) due to colchicine and gamma irradiation. This research was conducted at the Faculty of Agriculture University of Sumatera Utara, Medan with the altitude of 32 m above sea level from april to june 2017. This research used plant material of shallot bulb from Marlumba accession. The data were analyzed using t-analysis. Percentage of germination, plant length, number of leaves, number of tillers, bulb diameter, wet bulb weight, dry bulb weight and number of chromosomes. The results showed the treatment of colchicine 6 ppm and 6 gray gamma irradiation effect the changes parameters of plant length, number of leaves, number of tillers, bulb diameter, wet bulb weight, dry bulb weight and number of chromosomes. 6 ppm colchicine treatment showed increasing plant productivity, increase the average length of plant, the number of leaves, number of tillers, bulb diameter, wet bulb weight, dry bulb weight and number of chromosomes. 6 gray gamma irradiation treatment resulted decreasing in plant productivity, lowering plant length, number of leaves, bulb diameter, number of tillers, bulb diameter, wet bulb weight and dry bulb weight.

The influence of coconut water concentration and duration storage of rootstock to the percentage of budding success and cassava’s (mukibat) growth Muhammad Indra Iswahyudi; Nini Rahmawati; Mariati Mariati
Jurnal Agroekoteknologi Vol 6, No 4,Okt (2018)
Publisher : Universitas Sumatera Utara

The purpose of the research was to determine the influence of coconut water concentration and duration storage of rootstock to the percentage of budding success and cassava’s (mukibat) growth. The research was conducted at the screen house of Agriculture Faculty USU (± 32m asl) in March-June 2017 using Factorial Randomized Block Design (RAK) repeated 3 (three) times. The first factor was the coconut water concentration with 4 (four) levels ie without coconut water, 25% coconut water, 50% coconut water and 75% coconut water and second factor of storage duration of rootstock with 3 (three) treatment levels: 1 (one) week storage, 2 (two) weeks storage, and 3 (three) weeks storage. Parameter observed were percentage of budding success, spinning rate, shoot height, shoot diameter, number of leaves, number of tubers, root wet weight, and root dry weight. The results showed that the coconut water concentration had a significant effect on the success rate of budding, root wet weight, and root dry weight. Where the best coconut water concentration is at 50% coconut water treatment. The longer duration storage of rootstock gives fewer percentage of budding success. The best storage time for rootstock was 1 (one) week storage. The interaction of coconut water concentration and storage duration of rootstock had significant effect on the number of leaves.

Application of KNO3 and coconut water on papaya seed viability test (Carica papaya L) dio tirta ardi; Haryati Haryati; Jonatan Ginting
Jurnal Agroekoteknologi Vol 6, No 4,Okt (2018)
Publisher : Universitas Sumatera Utara

Papaya is a dicotil plant that can only be developed with seed required, seed quality supported best production in field. For obtained good quality seed and increased production can be done several alternatives including by providing seed dormancy breaking KNO3 and coconut water. This research was conducted in Seed Technology Laboratory Agriculture Faculty University of Sumatera Utara, Medan from April to Mei 2016. This research used factorial randomized complete design with two factors. The first factor was concentration of KNO3 M0 (0%); M1 (2.5%); M2 (5%); M3 (7.5%) and the second factor is concentration of coconut water N0 (0%); N1 (25%); N2 (50%); N3 (75%); N4 (100%).Variabel observed was germination test (normal seedling, abnormal seedling, seed that have not grown),germination rate, vigor index, seedling fresh weight, and seedling dry weight. The result of this research showed that consentration of KNO3 were significantly increase to, normal seedling, vigor index, seedling fresh weight, seedling dry weight, and significantly decrease the seeds that have not grown. Concentration of coconut water were significantly increase to germination rate,vigor index, and seedling dry weight. Interaction of concentration of KNO3 and concentration of coconut water were not significantly effect to all parameters.

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