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Jurnal Agroekoteknologi

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Published by Universitas Sultan Ageng Tirtayasa

ISSN : - EISSN : 25487108 DOI : -

Core Subject : Agriculture,

Agriculture, Biological Sciences & Forestry

Journal of Agroecotechnology contains articles directly sourced from the results of research related to the cultivation of plants related to soil, plants, weeds, pests and diseases.

Arjuna Subject : -

Articles 267 Documents

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PENGARUH PERLAKUAN KOLKISIN TERHADAP JUMLAH KROMOSOM DAN FENOTIP TANAMAN CABE KERITING (Capsicum annuum L.) Dewi Murni
Jurnal Agroekoteknologi Vol 2, No 1 (2010)
Publisher : Jurusan Agroekoteknologi Fakultas Pertanian Untirta

ABSTRACTSeed of red chilli plants has been induced with different consentrations of cholchisine 0,01%, 0,025% dan 0,05% in 24 hours incubation. The best consentration of cholchisine to induce these plants from diploid to poliploid was 0.025%. With this treatment root tip was dwelling, 90,82% in red chilli plants. Chromosomal microscope preparation of root tip dwelling showed tertaraploid chromosome which indicate tetrapolid character. The tetraploid plants show different morphology character comparing with diploid plants. The tetraploid plants are shorter, stems diameter are bigger, leaves size are wider and corollas are longer but flowering slower than diploid plants. Chromosome of anther buds was also showed tetraploidi, 95,83% in red chilli.Keywords: cholchisine, ploidy level, phenotype, red chilli plants

PERTUMBUHAN TANAMAN KANTONG SEMAR (Nepenthes rafflesiana Jack.) DENGAN MODIFIKASI KONSENTRASI MEDIA DAN pH SECARA IN VITRO Lea Yony Kunita; Susiyanti .; Sulastri Isminingsih; Yupi Isnaini
Jurnal Agroekoteknologi Vol 3, No 1 (2011)
Publisher : Jurusan Agroekoteknologi Fakultas Pertanian Untirta

This research about growth of pichter plant Nepenthes rafflesiana Jack was aimed to determine the modification medium’s concentration and pH at in vitro . This research has been conducted in the laboratory of plant concervation center Bogor Botanical Garden. This research was doing from Juni to September 2010. research using randomized block design with 2 factor, the first factor is modification concentration medium MS, consisting of 5 level is 1 MS, 1/2 MS, 1/4 MS, 1/8 MS, dan 1/16 MS; and the second factor is the pH medium was consisted 3 level: pH 4,7, pH 5,7 dan pH 6,7 was repeated four times. The results showed that concentration medium 1/8 MS and all pH medium were significant the variable of number pichter, number rootlet, percentage of planlet life, percentage of planlet pichter, percentage of planlet rootlet.Key words: Nepenthes rafflesiana Jack, medium concentration, pH.

EFEKTIVITAS APLIKASI BEBERAPA HERBISIDA SISTEMIK TERHADAP GULMA PADA PERKEBUNAN KELAPA SAWIT RAKYAT Yardha .; Araz Meilin
Jurnal Agroekoteknologi Vol 2, No 1 (2010)
Publisher : Jurusan Agroekoteknologi Fakultas Pertanian Untirta

ABSTRACTThe objective of the study were to find the dominant weeds in palm oil plantation before application of weeds control using effective active compound of systematical herbicide. Research done in Glorious Countryside Petaling, public plantation, River Gelam, Muaro Jambi, Jambi Province in January--Februari 2008. The research used active compound of herbicide gliphosate amineisoprophyll, 2,4 D-dimethyllamine, gliphosate isoprophyllamine + 2,4 D dimethyllamine, and triasulphuron 75%. The study was conducted using Randomized Completely Design, with 5 replicates. Data were analyzed by Duncan’s Multiple Range Test (DMRT). Data analysis of weeds vegetationusing SDR values. Result found 5 dominants weed species before herbicide application were Imperata cylindrica (with SDR value 27,8%), followed with Asystasia intrusa ( SDR = 9,4%), Affinae melastoma ( SDR = 9,2%), Repens panicum ( SDR = 8,2%), and Borreria alata ( SDR = 7,7)). Glyphosate isoprophyllamine of herbicide active compound which suitable to control grass weed species; while 2,4 D dimethyllamine active compound more suitable to control the wide leaf weed. Imperata cylindrica controlled with herbicide using gliphosate isoprophyllamine active compounds. Asystasia intrusa and Affinae melastoma controlled with 2,4 D dimethyllamines active coumpound. Weed competition reduce of crop production.Key words: active compound, herbicide, weed, palm oil

PENYISIPAN GEN FITASE PADA TANAMAN TEBU cv. PA 175 MELALUI Agrobacterium tumefaciens GV 2260 (pBinPI-IIEC) Susiyanti .; Gustav Adolf Wattimena; Memen Surahman; Agus Purwito; Dwi Andreas Santosa
Jurnal Agroekoteknologi Vol 1, No 1 (2009)
Publisher : Jurusan Agroekoteknologi Fakultas Pertanian Untirta

ABSTRACT Sugarcane (Saccharum officinarum L.) is one of importance crop grown in marginal in Indonesia. Phosphorus (P) is critical to the growth and development of plant in the marginal land. P is stored in plant as phytic acid (myo-inositolhexakisphosphate). Phytic acid is hydrolyzed by the activity of phytases to yield inositol and free phosphate. Genetic transformation of sugarcane with phytases gene holds promise to provide enough P during period of rapid cell division and growth of plant. Plant transformation mediated by Agrobacterium tumefaciens, has become the most used method for the introduction foreign genes into plant cells and the sub sequens regeneration of transgenic plant. The selection and regeneration of embryogenic callus of transformed plant was done on MS medium containing kanamycin. The main objective of this study were: (1) To find the best kanamycin concentration for selectable marker; (2) Insert phytase gen into varieties of sugarcane (cv. PA 175) through Agrobacterium tumefaciens GV 2260 (pBinPI-IIEC); and (3) To analyze of intregated transgene into genom of sugarcane using PCR method. Result of the experiment showed: (1) kanamycin selectable marker lethal doses for transformed sugarcane calli: 100 mg l-1; (2) Efficiency transformation of putative transgenic line was cv. PA 175= 24 %; (3) The first culture of transformed calli become 24 (Triton cv.), 18 (PSJT 94-41 cv.), and 30 (PA 175 cv.) putative plants; the second sub cullture of putative eksplant regenerate become new plant: 380 (PA 175 cv.) plants. (4) Analyzed of integrated phytase gene was proven by appearance of 900 bp of PCR band (5) transgenic plants (cv. PA 175) with highest activities respectively: 45 %; with medium phytase activity: 27 %, and low phytase activity: 27 % from total of sample. Non transgenic plants, most of sample show low phytase activity respectively: 100 % , noneh show medium - hight activy of phytase. Key words: Sugarcane, transformation, phytase, Agrobacterium tumefaciens

BAKTERI PELARUT FOSFAT HASIL ISOLASI DARI TIGA LOKASI LAHAN KERING RIZOSFER TANAMAN JAGUNG (Zea mays) DI BANTEN Firnia, Dewi; ., Nurmayulis; Fatmawaty, Andi Apriany
Jurnal Agroekoteknologi Vol 7, No 1 (2015)
Publisher : Jurusan Agroekoteknologi Fakultas Pertanian Untirta

Phosphorus in the soil is essential macronutrient for plant growth. Phosphate solubilizing bacteria are capable of managing phosphate availability in its soluble forms and are often found in the rhizosphere. This study aimed to know the level of total density and characteristics of phosphate solubilizing bacteria isolated from the rhizosphere of maize plants at three dry land locations in Banten. Â The bacteria were isolated using serial plate dilution method. Results showed that four isolated phosphate solubilizing bacteria were obtained. Two isolates were obtained from Curug, one from Walantaka, and one from Petir. The total density of phosphate solubilizing bacterial colonies from those dry land locations were Â 1.9 x 1010 CFU/ml for Curug 1, 1.9 x 1012 CFU/ml for Curug 2, 6x1012 CFU/ml for Walantaka, and 4,8x1010 CFU/ml for Petir.

KERAGAAN PRODUKSI BENIH KEDELAI DI PROVINSI JAMBI Hery Nugroho; Yardha .
Jurnal Agroekoteknologi Vol 5, No 1 (2013)
Publisher : Jurusan Agroekoteknologi Fakultas Pertanian Untirta

National soybean area harvested in the last decade tend to decline. This requires attention and study to find solutions to existing problems. This study aimed to identify implementation of seed production technology of soybeans in three agroecological land in Jambi Province, study the response of farmers to the technology used. This study was conducted from October 2010 through January 2011 in East Tanjung Jabung (Tidal Land), Tanjung Jabung West (Wetland irrigation) and Tebo Regency (Upland). The method used in this research is secondary data collection on soybean seed production technology that is the recommendation of Research Institute for Legumes and Umbiumbian. Furthermore, the survey method to collect primary data obtained through direct interviews with farmers in East Tanjung Jabung (Tidal Land), Tanjung Jabung West (Wetland irrigation) and Tebo Regency (Upland), Jambi Province. Purposive sampling method by farmers as respondents were taken of each region 10 farmers each breeder. The factors that affect farmers in seed production technologies analyzed in description. The results showed that the technology used in three different agro-ecological land this is due to soybean plants can be grown in various agro ecosystem with soil type, soil fertility, climate, and different cropping patterns so that constraints will differ from one agroecosystem other agroecosystem. With the technology is applied to the land tidal obtain the highest production compared with irrigated land and dry land. This happens because the tidal land application of cultivation technology of soybean seed production were adopted. From the results obtained with the expected higher seed production technology will be improved to increase the extent of unity.

ISOLASI BERBAGAI MIKROBA PADA RHIZOSFIR TANAMAN JAGUNG ., Nurmayulis; Setiawati, Mieke Rochimi; Utama, Putra; ., Susiyanti
Jurnal Agroekoteknologi Vol 1, No 2 (2009)
Publisher : Jurusan Agroekoteknologi Fakultas Pertanian Untirta

ABSTRACTÂ Biodiversity of potentialÂ soil microbes has been regarded as biological fertilizer of Zea mays in marginal land. A few microbe increased the rate of growthÂ of plant throught absorbtion slow released N and P in soil. The isolation, identification and population of soil microbes from rizosphere at Walantaka (Banten province) had been done in the Soil Biology Laboratories and the greenhouse, Pajajaran University- Bandung, during Mei to Agustus 2009. The soil was collected randomly from sites in Walantaka. To increase N and P using trapping and selection medium from from rizosphere at Walantaka (centre of Zea mays production), province of Banten.Â The Exploration of potential microbe Isolates of Azotobacter, Azospirillum, microbes dissolver phosphate (MPF) dan Mycorrhyzae microbes were identified and were founded in soil samples. The result showed, on okon selection mediumÂ can be found 4 Azospirillum, on Ashby mediumÂ lived 4 Azotobacter, Â and Pikovskaya medium got 2 MPF and Mycorrhyzae microbes.Key words: marginal land, Azospirillum, Azotobacter, MPF, Mycorrhyzae, Zea mays

PENINGKATAN PERTUMBUHAN BIBIT OKULASI KARET ( Havea brasilliensis Mull arg) KLON ANJURAN DI POLIBEG DENGAN PPC Joko Supriyanto; Yardha .
Jurnal Agroekoteknologi Vol 2, No 2 (2010)
Publisher : Jurusan Agroekoteknologi Fakultas Pertanian Untirta

ABSTRACT Rubber is forest commodity which planted most in Jambi with total area of 558.570 ha (97 % of community’s forest) and most are very old plants. Regeneration in commercial level has been done, however the quality of seedling was doubtful. Formers have their own preferency on superior clone of rubber such as PB260, RRIC100, and BPM24 but growth characteristics of those clones were not very well known yet. Thertore, research on growth of suggested clones need to be done done with optimal application of fertilizer research was conducted at trial plot of BPTP Jambi from May to November 2008. The experimental design was Completelty Randomized Design (CRD) with factorial assessed factory were : (1) Suggessted clone of rubber consist of A1 (BPM24), A2 (RRIC100), A3 (PB260) and (2) concentration of PPC Bayfolan consist of 5 lenels : Bo (Control), B1 (1,5 ml L-1), B2 (1,5 ml L-1), B3 (3 ml L-1), B4 (4,5 ml L-1), B5 (4,5 ml L-1). Parameters abserved were apical, langth, dry meight of roots, dry meight of apical, leaf total width, and quality index. Results shomed that there was in feraction betueen apical leugth and dry meight of apical, the highest yield was tahen from combination of A2B2. Parameters of root dry weight, leaf total width and quality index pave significanthy effect, RRIC100 gone the highest volume. PPC Bayfolan 3mll-1 gove the best yield. In overall, clone treatments gone significant effect on growth of seedling in the polibags while effect of PPC bayfolan shomed that there was optimum concentration on each suggested clone.Keywords: Seedling Grafting Rubber, Havea brasilliensis Mull arg, superior clone, PPC

RESPON BIBIT GENERATIF TANAMAN DUKU (Lansium domesticum Correa) PADA BERBAGAI ORDO TANAH TERHADAP PEMUPUKAN NPK Kartina AM
Jurnal Agroekoteknologi Vol 1, No 2 (2009)
Publisher : Jurusan Agroekoteknologi Fakultas Pertanian Untirta

ABSTRACTA research was carried out to know response duku seedling on soil from various location to NPK fertilizer. The research was conducted in green house of BPSB TPH IX from January until April and arranged in Randomized Completely Block Design with Split Plot Design and to know NPK absorbtion to leaf meristem obtained through laboratory analysis. The result of research showed that response of duku seedling on soil from various locations to NPK fertilizer was tested not significant to all of parameters observed except to plant height accretion of NPK fertilizer.Key words: Duku (Lansium domesticum Correa), Seedling, NPK

JUMLAH BINTIL AKAR DAN HASIL KACANG TANAH (Arachis hypogaea L.) KULTIVAR LOKAL ASAL PANDEGLANG PADA KONDISI KETERSEDIAAN AIR TANAH YANG MENURUN Rusmana .
Jurnal Agroekoteknologi Vol 2, No 1 (2010)
Publisher : Jurusan Agroekoteknologi Fakultas Pertanian Untirta

ABSTRACTThe objective of this experiment were find out responses various local peanut cultivars of Pandeglang to soil water availability decline condition. Randomized complete block design with three replications was used in this experiment. First factor is level of soil water availability consisted of three levels (100%, 75%, and 50%). Second factor is local cultivar of Pandeglang consisted of four levels(local cultivar of Menes, of Cibaliung, of Malingping, and of Cikeusik). Result of research indicates that decline soil water availability results degradation of number of root nodules and seed wight per plant for all local cultivar peanut of Pandeglang. Degradation of soil water availability out of 100% becomes 75%to result degradation of number of root nodules per plant average of 24,59% and degradation of soil water availability out of 100% becomes 50% to result degradation of number of root nodules 31,15%. Degradation of soil water availability out of 75% becomes 50% doesn't show degradation of number ofroot nodules manifestly. Degradation of soil water availability out of 100% becomes 75% to result degradation of seed wight average of 10,77% and degradation of soil water availability out of 100% becomes 50% to result degradation of seed wight 22,08%. Degradation of soil water availability out of75% becomes 50% doesn't show degradation of seed wight manifestly.Key words: local cultivar, peanut, root nodule, soil water availability

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