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All Journal AGROEKOTEKNOLOGI

Mariati Mariati

Universitas Sumatera Utara

Author-ID : 3055746

Agriculture, Biological Sciences & Forestry

Published : 18 Documents Claim Missing Document

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RESPON PERTUMBUHAN DAN PRODUKSI BAWANG MERAH (Allium ascalonicum L. Var. TUKTUK) ASAL BIJI TERHADAP PEMBERIAN PUPUK KALIUM DAN JARAK TANAM Benhard H. Sitepu; Sabar Ginting; Mariati Mariati
Jurnal Agroekoteknologi Vol 1, No 3 (2013)
Publisher : Universitas Sumatera Utara

The aim of the research was to evaluated the effect of potassium fertilizer (K) andthe planting distance on the growth and yield of onion (Allium ascalonicum L.)varieties Tuktuk. The research used Randomized Block Design with two-factors.The first factor was the doses of potasium fertilizer (KCl) with four levels e.g : K0= without KCl (control), K1=10 g KCl/m², K2= 20 g KCl/m² and K3 = 30 gKCl/m². The second factor was planting distance with three levels e.g : J1 = 10x10cm, J2 = 10 x 15 cm and J3 = 10 x 20 cm. The results showed that the diameterof tubers, wet weight of tubers per sample and dry weight of tubers per samplewere significantly affected by potasium fertilizers. The higest of diameter oftubers, wet weight of tubers per sample and dry weight of tubers per sample wereproduced by K2, whistling of each were 3,72 cm, 18,69 g and 5,61 g, but plantheight and leafs number were unsignificantly. Where as, plant height weresignifcantly affacted by planting distance were prouced by J2 e.g 16,01 cm, butleafs of number, diameter of tubers, wet weight of tubers per sample and dryweight of tubers per sample unsignificantly. Interaction of potasiumfertilizer and planting distance significantly affected the wet weight oftubers per plot and dry weight of tubers per plot. The higest of wetweight of tubers per plot and dry weight of tubers per plot wereproduce by K2J1 were 1,34 kg and 0,40 kg.__________________________________________________________________Key words: onion, potassium fertilizer and planting distance

RESPONS PERTUMBUHAN DAN PRODUKSI BIOMASSA TANAMAN OBAT PEGAGAN (Centella asiatica (L.)Urb.) DENGAN PEMBERIAN FOSFOR DAN METIL JASMONAT. Windy WS Manullang; J. A. Napitupulu J. A. Napitupulu; Mariati Mariati; Noverita SV Noverita SV
Jurnal Agroekoteknologi Vol 2, No 1 (2013)
Publisher : Universitas Sumatera Utara

Response of Growth and Biomass Production of Medicinal Plants Centella (Centella asiatica (L.)Urb.) Phosphorus And Methyl jasmonate aplication. The aims of this study is determine theresponse of growth and biomass production of medicine plants Centella to aplications Phosphorusand Methyl jasmonate. For this purpose, field experiment had been done in January to June 2012 atdesa Syahmad Lubuk Pakam by using Randomized Block Design for growth variable whichphosphor application as single factor with 9 blocks and for component of biomass productionvariable used by Split Plot Design with factors, they are jasmonate rate (0;100;200 μM) andphosphor application as the sub plot (0,18,36,54 kg P2O5/ha). The growth and production charactersobserved were number of primary shoots, number of stolon, fresh and dry weight per sampel andfresh and dry weight per plot. The results showed that all characters were not significantly effectedby phosphorus and methyl jasmonate, significant interaction for both treatsments only at 11 weeksafter sawing for stolon numbers and the highest was found in combination of 100 μM jasmonateand without phsophorus.Keywords: centella asiatica, methyl jasmonate, phosphorus

Pertumbuhan Dan Produksi Kacang Tanah (Arachis hypogaea L.) Dengan Pemberian Pupuk Kandang Sapi Dan Pupuk Fosfat Pendi Kurniawan Pasaribu; Asil Barus; Mariati Mariati
Jurnal Agroekoteknologi Vol 2, No 4 (2014)
Publisher : Universitas Sumatera Utara

This research was aimed to know the effect of cow manure and phosphate fertilizer toward growthand production of peanuts. The research was conducted at the farm field with altitude ± 25 metersabove sea level, began from January until March 2012 using Randomized Block Design with twofactors. The first factor was cow manure which consist of four levels, that were K0 (0 g/plot), K1(875 g/plot), K2 (1.750 g/plot), and K3 (2.625 g/plot), and the second was phosphate fertilizerconsist of three levels, that were P0 (0 g/plot), P1 (17,5 g/plot), and P2 (35 g/plot). Parametersobserved were plant height, number of primary branch, flowering time, pods number per plant,filled pods number per plant, seed production per plant, seed production per plot, and weight of 100dry seeds. The results showed that only plant height 5 week after planting and pods number perplant were significantly affected by cow manure, meanwhile all parameters observed weresignificantly affected by phosphate fertilizer except for plant height and number of primary branch.There was no interaction between both treatments.Keywords : cow manure, phosphate fertilizer, peanut

Tanggap Pertumbuhan dan Produksi Kacang Tanah (Arachis hypogaea L.) Pada Dosis Pupuk Kalium dan Frekwensi Pembumbunan Nelson Simanjuntak; Rosita Sipayung; Mariati Mariati
Jurnal Agroekoteknologi Vol 2, No 4 (2014)
Publisher : Universitas Sumatera Utara

Attempts to increase the yield of peanut can be done with fertilizer and pile up. The purpose of thestudy was to determine the response of KCl fertilizer and pile up frequency on the growth and yieldof peanuts. The research was conducted at Pasar I Tanjung Sari street, Medan with the height of 25metres above sea level, began from April until Juli 2013. The design of the research was arandomized block design with two factors. The first factor was dose of KCl fertilizer (0, 50, 100,and 150 kg/ha) and the second was pile up frequency (20; 20 and 40; and 20, 40, and 60 days afterplanted). The parameters observed were plant height, number of branches, flowering age, number ofginofor per sample, number of pods per sample, number of filled pods per sample, weight of podsper plot, weight of grain per plot, and weight of 100 grains. The results showed that the weight ofpods per plot and weight of grain per plot were significantly affected by pile up frequency. Howeverall parameters observed were unsignificantly affected by dose of KCl and treatment interaction.Key words : KCl fertilizer, pile up frequency, peanuts.

Respons Pertumbuhan Dan Produksi Tanaman Kacang Tanah (Arachis hypogaea L.) Terhadap Pemberian Paclobutrazol Dan Pupuk Kalium Jonis Ginting; Mariati Mariati
Jurnal Agroekoteknologi Vol 2, No 4 (2014)
Publisher : Universitas Sumatera Utara

The purpose of the study was to determine the effect of paclobutrazol and potassium fertilizer onthe growth and yield of peanuts. The research was conducted at Pasar I Tanjung Sari street, Medanwith the height of 25 metres above sea level, began from May until October 2013. The research wasarranged with a randomized block design with two factors. The first factor was concentration ofpaclobutrazol ( 0 ; 75 ppm ; 150 ppm and 225 ppm ) and the second was dose of KCl ( 0; 0.15 g ;0.3 g and 0.45 g ) . The parameters observed were plant height, number of ginofor, number ofproductive branches, number of unproductive branches, days to flowering, harvesting, pod weightper sample, number of filled pods per sample, number of empty pods per sample, weight of grainper sample, weight of grain per plot and weight of 100 grains. The results showed that plant height,number of ginofor, number of productive branches, days to flowering, pod weight per sample,number of filled pods per sample, weight of grain per sample, weight of grain per plot, and weightof 100 grains were significantly affected by paclobutrazol concentration. However all parametersobserved were unsignificantly affected by dose of KCl. There was also no interaction betweenpaclobutrazol concentration and dose of KCl .Key words : peanuts , paclobutrazol , KCl fertilizer.

Tanggap Pertumbuhan Dan Produksi Bawang Merah (Allium ascalonicum L.) Terhadap Waktu Aplikasi Dan Konsentrasi Pupuk KNO3 Anwar Koheri; Mariati Mariati; Toga Simanungkalit
Jurnal Agroekoteknologi Vol 3, No 1 (2015)
Publisher : Universitas Sumatera Utara

The purpose of the study was to determine the response of growth and yield of shallot (Alliumascalonicum L.) on time applications and KNO3 concentrations. The research was conducted at Pasar1 street No. 89 Tanjung Sari Medan, with a height of 25 metre above sea level, began from Julyuntil September 2013. The design of the research was a Randomized Block Design non factorialwith 13 treatments were: Control (without treatments); (KNO3 5 g/l water + application at 14, 21, 28,35 HST); (KNO3 5 g/l water + application at 14, 21, 28 HST); (KNO3 5 g/l water + application at 14,21 HST); (KNO3 5 g/l water + application at 14 HST); (KNO3 10 g/l water + application at 14, 21, 28,35 HST); (KNO3 10 g/l water + application at 14, 21, 28 HST); (KNO3 10 g/l water + application at14, 21 HST); (KNO3 10 g/l water + application at 14 HST); (KNO3 15 g/l water + application at 14,21, 28, 35 HST); (KNO3 15 g/l water + application at 14, 21, 28 HST); (KNO3 15 g/l water +application at 14, 21 HST); (KNO3 15 g/l water + application at 14 HST). Parameters observed wereplant height, tillers number, wet weight per sample, dry weight per sample, wet weight per plot anddry weight per plot. The results showed that all parameters observed were unsignificantly affectedby time applications and KNO3 concentrations except for plant height 5 – 7 weeks after planting.Key words : Shallot, time application, KNO3 fertilizer.

Tanggap Pertumbuhan dan Produksi Bawang Merah (Allium ascalonicum L.)Varietas Lokal Samosir Terhadap Varietas Lokal Samosir Terhadap Beberapa Dosis Iradiasi Sinar Gamma Puspa Hayati Sinambela,; Ferry Ezra Sitepu; Mariati Mariati
Jurnal Agroekoteknologi Vol 3, No 1 (2015)
Publisher : Universitas Sumatera Utara

The aim of the research was to identify the effect on gamma ray irradiation on vegetative growthand production of local onion (Allium ascalonicum L.) Var. samosir. The research was conducted atJl. Pancing, Medan, North Sumatera, with a height of 25 m above sea level began from April up toJuly 2014. Bulbs of onion were exposed to various doses of gamma irradiation (0, 2, 4, 6, 8, 10, 12and 14 Gy) using Co60 source. Parameters observed were shoot length, leaves number, tillersnumber, harvesting age, bulb fresh weight, bulb dried weight, bulb diameter and average weight perbulb. The results showed significant difference between irradiated and unirradiated plants (control)growth and production. All parameter observed were lower than control. Irradiated plants 6 weeksafter planting at doses 6,8,10 12 Gy reduced shoot length 24.5%, 35.4%, 54.07%, 64.19%; leavesnumber 36.30%, 46.54%, 45.28%, 69.74%, respectively compared to control. There was no plantsustein alife at doses of 10, 12 and 14 in 7 weeks after planting. Irradiated plants at doses of 6 and 8Gy also reduced bulb fresh weight 56.40%, 70.85%, bulb dried weight 58.61%, 76.15%, bulbsdiameter 31,09% , 44.12%, average weight per tuber 59.6%, 78.45% respectively compared tocontrol.Keywords: onion, var. samosir, gamma ray irradiation

Tanggap Pertumbuhan Vegetatif dan Generatif Bawang Merah Terhadap Konsentrasi Dan Lama Perendaman GA 3 Di Dataran Rendah Andrio Sorensen; Mariati Mariati; Luthfi A. M Siregar
Jurnal Agroekoteknologi Vol 3, No 1 (2015)
Publisher : Universitas Sumatera Utara

The aim of the research was to identify the suitable concentration and soaking duration time of GAto induce flowering and seed formation of Medan variete shallots. Research was conducted atSelamat Ketaren #100 Medan which about 25 meters above sea level, begun December 2013 untilMarch 2014. The experiment was carried out by using non factorial randomized block design,replicated three times. The treatments were G0 (Control); G1 (20 ppm soaked 30 minutes GA); G2(20 ppm soaked 60 minutes GA3); G3 (20 ppm soaked 90 minutes GA); G4 (40 ppm soaked 30minutes GA3); G5 (40 ppm soaked 60 minutes GA33); G6 (40 ppm soaked 90 minutes GA); G7 (60ppm soaked 30 minutes GA3); G8 (60 ppm soaked 60 minutes GA) and G9 (60 ppm soaked 90minutes GA33). Parameters observed were shoot lenght, leaf number, tiller number, fresh weight ofbulb per sample and plot, and dry weight of bulb per sample and plot. The result showed that allparameters observed were not significantly affected by the treatments. Keywords : Shallot, GA3, Soaking Duration Time. 333

Karakter Pertumbuhan Bawang Merah (Allium ascalonicum L.) Varietas Lokal Samosir Pada Beberapa Dosis Iradiasi Sinar Gamma Afifa Ulfa Batubara; Mariati Mariati; Ferry Ezra T. Sitepu
Jurnal Agroekoteknologi Vol 3, No 1 (2015)
Publisher : Universitas Sumatera Utara

The aim of the research was to identify growth characters of shallot var. local samosir with gammarays irradiation. Research was conducted at the Jl. Selamet Ketaren, Medan with a height of 25meter above sea level began from April until July 2014. Bulbs of shallot were exposed to severaldoses (0, 1, 2, 3, 4, 5, and 6 Gy) using Co60 source. Differencies of growth characters (shoot length,leaf number and tiller number per clump, harvest time, fresh and dry weight of bulb per plant, bulbdiameter and average weight per bulb) was analyze by t test using minitab v.16. The results showedshoot length 6 weeks after planting (WAP) were shorter 1.97cm, 2.38cm, 3.1cm, 4.73cm and4.49cm at doses 2,3,4,5,6 Gy; leaf number 2 WAP were reduced 35.16% and 39.24% at dose 5 and6 Gy, meanwhile tiller number 6 WAP was increased 13.88% at dose 6 Gy respectively comparedto control. Fresh weight and dry weight of bulb were lighter 30,39% and 37,04% at doses 5 Gy and38,52% and 47,44% at doses 6 Gy; average weight per bulb were lighter 23,2%, 47,64% and47,98% and bulb diameter were smaller 11,48%, 25,48% and 30,41% at doses 4,5,6 Gy respectivelycompared to control.Key words : Shallot var samosir, gamma rays irradiation, doses

Respons Pertumbuhan Dan Produksi Bawang Merah (Allium ascalonicum L.) terhadap Pemberian Abu Vulkanik Gunung Sinabung dan Arang Sekam Padi Esther Tarigan; Yaya Hasanah; Mariati Mariati
Jurnal Agroekoteknologi Vol 3, No 3 (2015)
Publisher : Universitas Sumatera Utara

Abu vulkanik yang mengandung hara penyubur tanah untuk pertanian sebenarnya baru bisa dimanfaatkan sekitar 10 tahun setelah peristiwa meletusnya gunung, namun teknologi percepatan pelapukan abu vulkanik dapat dilakukan dengan mencampur bahan organik. Salah satu bahan organik yang mampu untuk melepaskan hara yang terikat dari abu vulkanik yaitu arang sekam padi. Penelitian ini bertujuan untuk mengidentifikasi respons pertumbuhan dan produksi tanaman bawang merah (Allium ascalonicum L.) terhadap pemberian abu vulkanik Gunung Sinabung dan arang sekam padi. Penelitian dilaksanakan di lahan percobaan Fakultas Pertanian USU mulai bulan Mei ˗ Agustus 2014, menggunakan rancangan acak kelompok faktorial dengan dua faktor yaitu pemberian abu vulkanik (0, 5, 10, 15 ton/ha) dan arang sekam padi (0, 10, 20 ton/ha). Peubah yang diamati adalah jumlah anakan, bobot basah per sampel, bobot basah per plot, bobot kering per sampel, dan bobot kering per plot. Hasil penelitian menunjukkan bahwa pemberian arang sekam padi belum kelihatan mempercepat pelapukan abu vulkanik. Pemberian abu vulkanik dan arang sekam padi berpengaruh tidak nyata terhadap semua peubah amatan, tetapi interaksi keduanya berpengaruh nyata terhadap jumlah anakan pada 3 MST. Kombinasi perlakuan tanpa abu vulkanik dan arang sekam padi 10 ton/ha menghasilkan jumlah anakan per rumpun terbanyak.Kata kunci : abu vulkanik, arang sekam padi, bawang merah

Co-Authors Afifa Ulfa Batubara Andrio Sorensen Anwar Koheri Arga Malona asil barus Benhard H. Sitepu Berson Berson Eric Pandiangan Ernika Septyma Br Pardede Esther Tarigan Fajar Yandi Siahaan Ferry Ezra Sitepu Ferry Ezra T. Sitepu J. A. Napitupulu J. A. Napitupulu Jonis Ginting Luthfi A. M Siregar Meiriani Meiriani Muhammad Indra Iswahyudi Nelson Simanjuntak Nini Rahmawati Noverita SV Noverita SV Osmin Sipayung Pendi Kurniawan Pasaribu Puspa Hayati Sinambela, Rian Eko Pradana rosita sipayung Sabar Ginting Toga Simanungkalit Toga Simanungkalit Windy WS Manullang Yaya Hasanah

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