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VIABILITAS BENIH ROSELA (Hibiscus sabdariffa L.) PADA BERBAGAI KADAR AIR AWAL DAN KEMASAN BENIH Herri Wiliam Suhendra Purba; Ferry Ezra Sitepu; Haryati Haryati
Jurnal Agroekoteknologi Vol 1, No 2 (2013)
Publisher : Universitas Sumatera Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (208.734 KB) | DOI: 10.32734/jaet.v1i2.1551

Abstract

The aim of the research was to studyseed viability of rosela  (Hibiscus sabdariffa  L.) during 3 months storage on various levels of initial seed moisture content and storage seed packaging. It was conducted in the Laboratory of Seed Technology, Faculty of Agriculture USU about 25 m sea level rise on Mei to September 2012 by using randomized block design with two factors. The first factor was various levels of initial moisture content(7%, 9% and 11%) and the second one was storage seed packaging(aluminium foil, polyethylene plastic and paper). Variables measured include moisture content, germination rate, grow potential, germination percentage and vigor index. The results showed that initial seed moisture contentshowed only significant effects on moisture content and storage seed  packaging showed significant effects on moisture content, grow potential, and germination percentage. Interaction of both treatments showed non significant effect on all parameters.   Key words : Rosela seed, moisture content, storage seed  packaging and seed viability.
PENGARUH BEBERAPA TINGKAT KEMASAKAN TERHADAP VIABILITAS BENIH TANAMAN ROSELA (Hibiscus sabdariffa L.) Muhdan Syarovy; Haryati Haryati; Ferry Ezra T Sitepu
Jurnal Agroekoteknologi Vol 1, No 3 (2013)
Publisher : Universitas Sumatera Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (198.251 KB) | DOI: 10.32734/jaet.v1i3.2735

Abstract

Roselle is plant that have benefit for the prevention of disease. In Indonesia, productivity of roselleis still low. One factor contributing to low plant productivity is the low quality of the seeds. The lowquality of seeds have low vigor and viability. The aim of the research was to determine the viabilityof seeds roselle (Hibiscus sabdariffa L.) at different levels of ripening are conducted in SeedTechnology Laboratory, Faculty of Agriculture, University of North Sumatra, Medan with a altitude± 25 m above sea level from May until July 2012 using completely randomized design with 6 levelof ripening that is 17 HSMB (day after anthesis flower), 21 HSMB, 25 HSMB, 29 HSMB, 33HSMB dan 37 HSMB. Parameters measured were seed dry weight, moisture content, germinationpercentage normal and seedling dry weight. The results showed that the level of ripeningsignificantly affect seed dry weight, moisture content, percentage normal germination and seedlingdry weight
APLIKASI PUPUK ORGANIK DAN BENZILADENIN TERHADAP PERTUMBUHAN DAN PRODUKSI TANAMAN ROSELA (Hibiscus sabdariffa L.) Budi Santoso; Irsal Irsal; Haryati Haryati
Jurnal Agroekoteknologi Vol 1, No 4 (2013)
Publisher : Universitas Sumatera Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (122.953 KB) | DOI: 10.32734/jaet.v1i4.4355

Abstract

This research has been conducted to study the effect of organic matter andbenziladenin aplication on the growth and yield of the roselle. Research wasconducted on Research Center at Tanjung Selamat Village, sub district sunggalwith a height of 57 m above sea level during February-June 2012, using factorialrandomized block design with two factors, they are compost (0, 200, 400g/polybag) and benziladenin (0, 100, 200, 300 cc/l). The parameters observedwere plant height, flowering age, branch number, fruit production per plant, freshweight of fruits per plant, fresh weight of petals per plant, dry weightof petals perplant and seed weight per plant. The result of the research showed that compostsignificantly increased all parameters, bensiladenin significantly increased thebranch number, and interaction of both compost and benziladenine did not showany significant effect on all parameters.
PENINGKATAN KADAR VITAMIN C BUAH TOMAT (Lycopersicum esculentum MILL.) DATARAN RENDAH DENGAN PEMBERIAN HORMON GA3 Riky Gusti Handrian; Meiriani Meiriani; Haryati Haryati
Jurnal Agroekoteknologi Vol 2, No 1 (2013)
Publisher : Universitas Sumatera Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (226.495 KB) | DOI: 10.32734/jaet.v2i1.5833

Abstract

Tomato is one of the fruits that are beneficial to humans. Tomato has a delicious taste and has acomposition of substances in tomatoes quite complete and well. Composition in tomatoes quiteprominent of these is the composition of vitamin A and C. With vegetables like tomatoes and otherfruits, can be processed into various food products. Nutrient composition of tomato fruit is 100grams of protein (1 g), carbohydrate (4.2 g), fat (0.3 g), calcium (5 mg), phosphorus (27 mg), iron(0.5 mg ), vitamin A (carotene) 1500 SI, vitamin B (thiamine) 60 mcg, vitamin C 40 mg. Vitaminscontained in tomatoes is necessary for the growth and health of the body. Vitamin C is useful toprevent ulcers, to maintain healthy teeth and gums, as well as protect against other diseases causedby lack of vitamin C. Even the U.S. study showed, tomatoes can be used as a preventative ofcancer, particularly prostate cancer, if eaten on a regular basis as much as 5 pieces every week. Oneof the business in order to increase the levels of vitamin C in tomatoes that growth hormone GA3application. Results of research conducted by Meiriani (2011) on the provision of GA3 on tomatoplants results obtained highest levels of vitamin C at a concentration of 450 ppm with a frequencyof 3 times is equal to 123.20 mg/100 g. This research aimed to increase in vitamin C of tomato(Lycopersicum esculentum Mill.) with the hormone GA3. This research aimed to increase vitaminof tomato (Lycopersicum esculentum Mill.) with the GA3 hormone. This Research was conducted atthe Faculty of Agriculture, Universitas Sumatera Utara about + 25 meters above sea level fromJanuary to April 2012. And arrange in randomized block design with two-factors factorialtreatments. The first factor was concentration of GA3 with four levels : 300 ppm, 450 ppm, 600ppm, 750 ppm and the second factor was frequency of GA3 with three levels, i.e : 3 time, 4 timesand 5 times. The result of research showed that application of GA3 at concentration up to 750 ppmwas significantly influenced to increased tomato vitamin C level. Interaction of both treatmentwas not significant to influenced parameter of observation.Key words : GA3, tomato, consentration, application frequency, vitamin C.
PENGARUH PERIODE PANEN TERHADAP VIABILITAS BENIH ROSELA (Hibiscus sabdariffa L.) Dedes Mayang Sari Pulungan; Haryati Haryati; Ratna Rosanty Lahay
Jurnal Agroekoteknologi Vol 2, No 2 (2014)
Publisher : Universitas Sumatera Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (217.128 KB) | DOI: 10.32734/jaet.v2i2.7176

Abstract

Roselle has a harvest period that does not simultaneously or concurrently so that harvesting donegradually. To obtain a good quality seed of roselle harvesting seeds based physiologically mature.This research aimed to determine effect of harvest periode for seeds viability of roselle (Hibiscussabdariffa L.). This research has conducted in the experimental field which were ± 25 meters abovesea level and continued in Seed Technology Laboratory of the Faculty of Agriculture, UniversitasSumatera Utara from February to June 2013, using the non factorial completely randomized design.Analyzed of the data using analysis of variance and continued with DMRT. The result of researchhas identified that it has significantly effect of harvest period that influenced weight of 100 seeds(g), number of seeds/fruit (seed), normal germination (%), seeds do not germinate (%), seedling dryweight (g), but it was not significantly to rate of germination (days), abnormal germination (%) andvigor index (%).Keywords: harvest period, viability, seed of roselle
RESPONS PERTUMBUHAN DAN PRODUKSI BAWANG SABRANG (Eleutherine americana Merr) TERHADAP PEMBELAHAN UMBI DAN PERBANDINGAN MEDIA TANAM Dewi Sartika Siregar; Haryati Haryati; Toga Simanungkalit
Jurnal Agroekoteknologi Vol 2, No 3 (2014)
Publisher : Universitas Sumatera Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (167.598 KB) | DOI: 10.32734/jaet.v2i3.7407

Abstract

Low bulb supply of bawang sabrang be trouble in propagation. For that purpuse bulbs divisionaimed to decreasing bulb needed and the right comparing of planting media can increase growthand yield of bawang sabrang. This research was conducted in experimental field at Jl. Pembangunanin April- July 2013, used randomized block design with two factor etc bulb division (no division, 2part division, 4 part division) and comparing planting media (topsoil, topsoil+compost 1:1, 2:1,3:1). Parameter observed was germination time, plant height, number of leaves, number of bulbs persample, fresh bulb weight per sample and fresh bulb weight per plot.The result of this researhshowed that bulb division significantly decreased germination time, plant height, number of bulbsper sample, fresh bulb weight per sample and fresh bulb weight per plot.Comparing of plantingmedia significantly effect number of leaves, number of bulbs per sample, fresh bulb weight persample and fresh bulb weight per plot. Interaction between bulb division and comparing plantingmedia significantly number of leaves, number of bulbs per sample, fresh bulb weight per sampleand fresh bulb weight per plot. The best result showed in no division and comparing planting media1:1 and 2:1.Keyword : bulb division, comparing of planting media, bawang sabrang
PENGARUH JARAK TANAM DAN PEMBERIAN KOMPOS JERAMI PADI TERHADAP PERTUMBUHAN DAN PRODUKSI BAWANG SABRANG (Eleutherine americana Merr.) Lili Tri Anggraini; Haryati Haryati; T. Irmansyah T. Irmansyah
Jurnal Agroekoteknologi Vol 2, No 3 (2014)
Publisher : Universitas Sumatera Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (366.689 KB) | DOI: 10.32734/jaet.v2i3.7443

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Using of traditional medicine is growing rapidly at this time. Eleutherine americana Merr. is one ofkind plants that potentially can be traditional medicine. This research is proposed to find out theproper plant spacing and addition of rice straw compost of Eleutherine americana. This researchwas conducted at Jalan Pasar 1 Tanjung Sari, Medan with altitude ± 25 m above sea level from Mayto September 2013, using factorial randomized block design with two factors. The factors werevarious plant spacing (20x15, 15x10, 10x15 cm) and addition of rice straw compost (0; 0,5; 1kg/plot or 0, 10, 20 ton/ha) used three replications. Data were analyzed with ANOVA and continuedwith Duncan Multiple Range Test (DMRT). Parameters were observed sprouting age (day), heightof plant (cm), number of bulb per sample and fresh bulb weight per sample (gram). The resultsshowed that the plant spacing effected significantly on sproutig age, height of plant except 9-12weeks after planting, and the number of bulb per sample. Addition of rice straw compost notsignificantly on any parameters. The interaction of two factors effected significantly on height ofplant 4 and 5 weeks after planting.Keywords : Plant spacing, rice straw compost, Eleutherine americana Merr.
Respons Pertumbuhan Berbagai Ukuran Diameter Batang Stek Bugenvil (Bougainvillea spectabilisWilld.) Terhadap Pemberian Zat Pengatur Tumbuh Leo Richi H Panjaitan; Jasmani Ginting; Haryati Haryati
Jurnal Agroekoteknologi Vol 2, No 4 (2014)
Publisher : Universitas Sumatera Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (340.687 KB) | DOI: 10.32734/jaet.v2i4.8429

Abstract

Successive percentage of bugenvil plant propagation by cutting method is low enough sincebugenvil is difficult to rooting plant. The availability of carbohydrate source and plant growthregulator in the stem cutting are factors that influencing the successive of cutting. Solution to solvethis problem is selection of the size of stem and giving the exsogen plant growth regulator. Theresearch was done in Screen House at Agricultural Faculty, University of North Sumatra, Medan inJanuary until August 2013 to study the growth of sizes of diameter stem cutting with application ofthe growth regulators. The design of the research used randomized block design of factorial withtwo factors of treatment and three replications. The first factor was diameters of stem cutting which6, 12 and 18 mm. The second factor was application of the plant growth regulator IBA + BAPwhich control, 400+ 400 ppm, 600 + 600 ppm and 800 + 800 ppm. Parameters were shoot height,shoot diameter, root fresh weight of sample, root dry weight of sample, shoot fresh weight ofsample, and shoot dry weight of sample. The results showed that diameter 18 mm and giving ofplant growth regulator 800 + 800 ppm gave the great influence in cutting growth.Key words : size of diameter stem cutting, plant growth regulator, bugenvil
Pengaruh Metode Strafikasi Suhu Rendah, Krioprotektan Dan Kriopreservasi Terhadap Viabilitas Benih Rosela (Hibiscus sabdariffa L.) Dede Suhendra,; Haryati Haryati; Luthfi A. M. Siregar
Jurnal Agroekoteknologi Vol 2, No 4 (2014)
Publisher : Universitas Sumatera Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (234.209 KB) | DOI: 10.32734/jaet.v2i4.8451

Abstract

The objective of the research was to know effect of treatment low temperature, cryoprotectants,cryopreservation and it’s combination to seed viability of rosele. The research was conducted at theSeed Technology Laboratory, Agriculture Faculty, University of Sumatera Utara, Medan withheight ± 25 meters above sea level, in January to February 2014, using a randomized block designwith 5 level low temperature stratification, cryoprotectants and cryopreservation treatment as wellcombination and control. Parameters observed were moisture content seed (%), germination rate(day), germination normal (%), abnormal sprouts (%), seeds die (%), vigor index (%), wet weight ofsprouts (g), dry weight of sprouts (g). The results showed that rosele seed viability using liquidnitrogen significantly different than without giving liquid nitrogen, provision cryoprotectants andcooling rate -5°C temperature before it immersed in liquid nitrogen not were optimal.Keywords: seed rosele, low temperature stratification, cryoprotectans, cryopreservation
Respons Pertumbuhan dan Produksi Tanaman Semangka (Citrullus vulgaris Schard.) terhadap Pemberian Giberelin dan Pupuk TSP Zaura Makhliza; Ferry Ezra T. Sitepu; Haryati Haryati
Jurnal Agroekoteknologi Vol 2, No 4 (2014)
Publisher : Universitas Sumatera Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (205.583 KB) | DOI: 10.32734/jaet.v2i4.8597

Abstract

The objective of this experiment is to determine the respons in growth and yield of watermelon(Citrullus vulgaris Schard.) to Gibberellins and TSP fertilizer. This experiment was conducted atland of Pasar I Street No. 89, Tanjung Sari, Medan with the level approximately ± 25 inabove sea level, starting from May to December 2013 using factorial randomized block design withtwo factor, i.e. gibberellin (0, 100, 200 and 300 ppm) and TSP fertilizer (60, 80and 100 g/plant). Parameter observed were plant height, days to flowering, weight of fruit andnumber of seed. The result showed that gibberellin concentration affect significantly to the numberof seed and weight of fruit and giving up to 200 ppm gibberellin treatment on fertilizer TSP 80g/plant significantly speed up the age of harvesting.Keywords : gibberellin, TSP fertilizer, watermelon