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PENGARUH PEMBERIAN GIBERELLIN TERHADAP PERTUMBUHAN BIBIT AREN (Arenga pinnata Merr) Prima Irawan; Lollie A. P. Putri Agustina P Putri; Yusuf Husni
Jurnal Agroekoteknologi Vol 1, No 3 (2013)
Publisher : Universitas Sumatera Utara

The effect of giberellin on growt of sugar palm in nursery (Arenga pinnata Merr). Application of giberellin were done to know effect on the growth of sugar palm seed. The research used randomized block design with 5 levels of 0 ppm, 50 ppm, 100 ppm, 150 ppm, and 200 ppm. The parameters observed were seed height, leaf sum, leaf chlorophyl, steam diametre, wide leaf, fresh weight of crown, fresh weight of root, dry weight of crown and dry weight of root. The result of research showed that effect of giberellin significantly on seed height 10, 12, 14 weeks after planting and the optimum concentrate was on 200 ppm and not significantly number of leaf, chlorofil content, steam diametre, wide leaf, fresh weight of shoot, fresh weight of root, dry weight of shoot and dry weight of root. Keywords : sugar palm, giberellin, growth.

EVALUASI TOLERANSI TANAMAN KEDELAI (Glycine max (L.) Merrill) GENERASI M3 HASIL RADIASI SINAR GAMMA TERHADAP SALINITAS Rapi Rapi Simbolon1; Emi Harso Kardhinata; Yusuf Husni
Jurnal Agroekoteknologi Vol 1, No 3 (2013)
Publisher : Universitas Sumatera Utara

The objective of the research is to know the tolerance of M3 soybean generation radiated by gamma ray to salinity. The research was conducted on the Experimental Farm Faculty of Agriculture, University of North Sumatra,, from December 2011 – March 2012. Randomized block design was used with two treatments i.e : population of M3 soybean (0, 10, 20, 30 krad per plant) and NaCl concentration (0, 1500, 3000, 4500 ppm). Parameters measured were plant germination, viability, high of plant, the number of node per plant, the number of branch, root longth, weigh of dry root, weigh of dry leaves, the number of pods per plant, the number of empty pods per plant and weigh of 100 seed. M3 soybeans showed significant diffrent on root longth and weigh of dry root. NaCl concentration affect were significantly to plant germination and viability.The interaction between population M3 soybeans and NaCl concentration were significantly to the number of node per plant, the number of branch, weigh of dry leaves, the number of pods per plant, the number of empty pods per plant and weigh of 100 seed. Key words: tolerance, salinity, M3 generation, soybean

RESPONS PERTUMBUHAN DAN PRODUKSI KEDELAI (Glycine max (L.) Merrill) YANG DIBERI FUNGI MIKORIZA ARBUSKULAR (FMA) PADA TANAH SALIN Teguh Hakiki Nasution; Rosmayati Rosmayati; Yusuf Husni
Jurnal Agroekoteknologi Vol 2, No 1 (2013)
Publisher : Universitas Sumatera Utara

Soybean crop productivity on saline land affected by the input that is given to the provisionof mycorrhizal plants. For which a research field trials have been conducted in the village ofTanjung Rejo District Percut Sei Tuan Deli Serdang regency (± 1.5 m asl.) In May-July 2012.Experimental was conducted using a factorial randomized block design that is mycorrhizalwith standard treatment (M0 = No provision of mycorrhizal and mycorrhizal granting M2 =10 g / plant), the treatment was repeated six times. The data were analyzed using variance(ANOVA) and continued with HSD.The analysis of data showed that administration ofmycorrhizae improve plant height at age 5 MST, the number of branches, number of podsand cropping, as well as accelerate the age of flowering plants.Key words: salinity, mycorrhizal

RESPONS PERTUMBUHAN BIBIT AREN ( Arenga pinnata Me Manahan Manahan; Lollie Agustina P. Putri; Yusuf Husni
Jurnal Agroekoteknologi Vol 2, No 2 (2014)
Publisher : Universitas Sumatera Utara

ABSTRACTOne of the problems encountered in the development of the sugar palm seedling there is no fertilizer issuitable for palm nursery. Based on this, the objective of this research was to determine the effect of liquidorganic fertilizer on the growth of sugar palm seedling. The research was conducted at area University ofSumatra Utara, Medan with ± 25 m height above sea level which is held in August to December 2012randomized block design was used. The treatment was a liquid organic fertilizer with some types anddossages of different fertilizers. The treatment was used four replication. The type and dosage of fertilizerwas used in control (without organic liquid fertilizer), organic liquid fertilizer N: <2%, P2O5: <2%, K2O:<2% (50 cc / seeds), organic liquid fertilizer N: <2%, P2O5: <2%, K2O: <2% (75 cc / seeds), organic liquidfertilizer P2O5: <2%, K2O: <2% (4.5 cc / seeds), organic liquid fertilizer P2O5: <2 %, K2O: <2%(7cc/bibit), liquid organic fertilizer N 0.011%, P 6.26 mg/100 ml, 72.13 K mg/100ml, auxin IAA 0.066 g / l,GA3 gibberellins 0.093 g / l (6cc/bibit), liquid organic fertilizer N 0.011%, P 6.26 mg/100 ml, 72.13 Kmg/100ml, auxin IAA 0.066 g / l, GA3 gibberellins 0.093 g / l (8.5 cc / seeds). Parameters measured werepalnt height, leaves number, stem diameter, total leaves area, shoot weight, root weight, shoot dry weight androot dry weight. The results showed that the liquid organic fertilizer had not been significantly affected forall parameters were palnt height, leaves number, stem diameter, total leaves area, shoot weight, root weight,shoot dry weight and root dry weight.Keywords: iquid organic fertilizer, palm

PERTUMBUHAN DAN PERKEMBANGAN NODUS KENTANG (Solanum tuberosum L.) AKIBAT MODIFIKASI KONSENTRASI SUKROSA DAN PENAMBAHAN 2-ISOPENTENILADENINA SECARA IN VITRO Asma Ul Husna; Luthfi Aziz Mahmud Siregar; Yusuf Husni
Jurnal Agroekoteknologi Vol 2, No 3 (2014)
Publisher : Universitas Sumatera Utara

Potato is horticulture crops that able to consume its corm and used as food materials until a raw material toindustry in Indonesia . However, potato production capacity is not proportional to the increase in demand forpotatoes this time, one of this problem due to lack of availability of quality seed. In vitro tecniques is oneway that can be taken by using nodes as seed. Sucrose and cytokinin have an important part on it wheresucrose acts as a carbon source and energy while cytokinin is important in cell division to support a nodesgrowth. The research aimed to get a suitable concentration of sucrose and 2-isopenteniladenine (2-ip) forgrowth of number of potato (Solanum tuberosum L.) nodes by using in vitro methode. The research wascarried out in the Tissue Culture Laboratory, agriculture’s Faculty of North Sumatera University from Juneto September 2013. This research used Randomized Block design with two factors. First factor was sucroseconcentration consist of four level: 35 g/l; 50 g/l; 65 g/l; 80 g/l. The second factor was 2-ip concentrationconsist of five level are 0 mg/l; 2 mg/l; 4 mg/l; 6 mg/l; 8 mg/l. The results showed that sucrose gavesignifiantly effect to number of nodes after darkness period parameter. 2-ip concentration give significantlyeffect only on number of nodes after lighting period. Interaction of sucrose and 2-ip have no effectsignificantly to all parameterKeywords : Sucrose, 2-Isopenteniladenine (2-ip), Potato Nodes, In Vitro

Respons Pertumbuhan dan Produksi Beberapa Varietas Tomat (Lycopersicum esculentum L.) Dataran Rendah Terhadap Pemberian Pupuk Kandang Ayam Ali Zainal Abidin; Emmy Harso Kardhinata; Yusuf Husni
Jurnal Agroekoteknologi Vol 2, No 4 (2014)
Publisher : Universitas Sumatera Utara

The purpose of the study was to determine the growth response and yield of some varieties oflowland tomato (Lycopersicum esculentum L.) under application of chicken manure. The researchwas conducted at Pasar I Tanjung Sari, Medan, of 25 meters above sea level, from June until August2013. The research design is a randomized block design with two factors, tomato varieties; Rempai,Vida and Super King, and chicken manure’s dosages; 0, 250, 500 and 750 g/polybag. Parametersobserved were plant height (cm), the number of fruit per plant, the number of bunches, the numberof fruit per bunch, average fruit weight (g) and heritability. The results showed that tomato varietieshave significant different on plant height, average fruit weight, the number of bunches, the numberof fruit per plant and the number of fruit per bunch, dosage of chicken manure showed significantparameters plan height, the numberof bunches and the number of fruit per bunch. Interaction of bothtreatments gave significant different on plant height, the number of bunches, the number of fruit perplant and the number of fruit per bunch.Key words : lowland tomato variety, chicken manure

Respons Pertumbuhan Tebu (Sacharum officinarum L.) terhadap Pengolahan Tanah pada Dua Kondisi Drainase M.Maulana Rasyid Lubis; Lisa Mawarni; Yusuf Husni
Jurnal Agroekoteknologi Vol 3, No 1 (2015)
Publisher : Universitas Sumatera Utara

Drainage and land cultivation be determaining factor for optimal production of sugar cane. For thatpurpose, this research aimed to know response growth of of sugar cane (Sacharum officinarum L.)to land cultivation on some drainage condition. This research was conducted in Plantation Field ofPT Perkebunan Nusantara II Kebun Sampali, Deli Serdang on July 2013 – January 2014, used splitplot design with two factor are; drainage (good and bad drainage), and land cultivation (maximumand minimum land cultivation). Parameter observed are plant height, stem diameter, number ofinternodes, and number of stem.The result showed that drainage significantly affect on plant height1-6 months after planting (MAP), stem diameter 1, 2, 5 dan 6 MAP, and number of internodes 1-6MAP. Land cultivatin significantly affect on plant height 1-6 MAP, stem diameter 1, 2, 3, 5 dan 6MAP, number of internodes 1-6 MAP, and number of stem 6 MAP. Interaction between two factorssignificantly affect on plant height 1-6 months after planting (MAP), stem diameter 1, 2, 5 dan 6MAP, and number of internodes 1-6 MAP. Best combination treatment showed on good drainageand maximum land cultivation.Keywords: drainage, land cultivation, sugar cane

Kajian Awal : Respon Eksplan Nodus dalam Inisiasi Tunas Mikro Tanaman Karet (Hevea brasiliensis Muell Arg.) dalam Medium MS Permata Sari Harahap; Luthfi Aziz M. Siregar; Yusuf Husni
Jurnal Agroekoteknologi Vol 3, No 1 (2015)
Publisher : Universitas Sumatera Utara

The aimed of the research was to determine the best medium for micro shoot induction ofrubber plant (H. brasiliensis Muell. Arg.) from node explant in MS medium. Theresearch was carried out in the In Vitro Culture Laboratory, PT. Perkebunan NusantaraIII Kebun Gunung Pamela, Tebing Tinggi, Sumatera Utara, Indonesia. The researchbegan from April to June 2014. The research used Completely Randomized Design withsixteen treatments and six replications. The results showed that combination of BAP andNAA concentrations significantly affected on percent of sterile explants and percent ofshoots emergence. Each treatment showed different result and the MS Media + 1 mg/lBAP + 0 mg/l NAA was the best media for leaf formation of the microshoot.Key words: rubber, micro shoot, BAP, NAA

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