Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy)
ISSN : 20852916     EISSN : 23373652
urnal Agronomi Indonesia, sebelumnya bernama Buletin Agronomi, terbit sejak 1962, diterbitkan oleh Departemen Agronomi dan Hortikultura Fakultas Pertanian, Institut Pertanian Bogor dan Perhimpunan Agronomi Indonesia (PERAGI). Jurnal Agronomi Indonesia merupakan media untuk publikasi tulisan asli yang berkaitan dengan budidaya tanaman secara luas, dalam Bahasa Indonesia maupun Bahasa Inggris. Naskah dapat berupa: hasil-hasil penelitian mutakhir (paling lama 5 tahun yang lalu), ulasan (review)singkat, analisis kebijakan atau catatan penelitian (research note) singkat mengenai teknik percobaan, alat, pengamatan, hasil awal percobaan (preliminary result).
Articles 24 Documents
Search results for , issue " Vol 36, No 2 (2008): Jurnal Agronomi Indonesia" : 24 Documents clear
Karakteristik Daun Jarak Pagar (Jatropha curcas L.) dan Hubungannya dengan Fotosintesis Raden, Ince; Purwoko, Bambang S.; Hariyadi, ,; Ghulamahdi, Munif; Santosa, Edi
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol 36, No 2 (2008): Jurnal Agronomi Indonesia
Publisher : Bogor Agricultural University

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Abstract

The objective of this research was to study the morphology and physiology of jatropha leaves and its relation to photosynthesis. Research was conducted using Randomized Complete Block Design with single factor,  i.e., leaf ages at the canopy with ten replications. The results showed that jatropha had phyllotaxy 5/13 with  angular divergence 1380. In early growing leaf enlarged sharply and then constant after 9 week, remaining green for 14 weeks.  Chlorophyll a, b, and total achieved maximum at 9 week, i.e., 0.45 g/cm2, 0.19 g/cm2, and 0.62 g/cm2, respectively. Photosynthesic rate was maximum at 6 week, i.e., 8.99 µmol/m2/s, while number of  stomata was maximum at 9 week (289.47 mm2). This finding implies that leaf number 11 to 13 or age 6 week after emergence could be used as reference for photosynthetic evaluation.   Key words:  Jatropha curcas L., leaf arrangement, photosynthetic, reference leaf
Induksi Kalus dan Regenerasi Tunas Padi Varietas Fatmawati Lestari, Endang G; Yunita, Rosa
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol 36, No 2 (2008): Jurnal Agronomi Indonesia
Publisher : Bogor Agricultural University

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Abstract

Efficiency of shoot  regeneration from rice callus explant is an important factor, particularly for the purpose of plant genetic improvement such as somaclonal variation, transformation and in vitro selection. In the attempt of gaining shoot regeneration, callus induction and shoot regeneration experiments were conducted in the Biological Cell and Tissue Culture Laboratory, Indonesian Center for Agricultural Biotechnology and Genetic Resources Research and Development.  Mature seed was used as an explant. The media formulation for calli induction was  MS + 2.4-D (1, 3, 5 and 7 mg/l ) + prolin (0 and 100 mg/l ) and hydrolyzed casein 3000 mg/l. The media for shoot regeneration was   (1) MS + BA (1.2 and 3 mg/l ) + IAA 0.8 mg/l + prolin 100 mg/l, and (2) MS + BA 2 mg/l + IAA 0.8 mg/l + zeatin (0.1; 0.2 and 0.3 mg/l). The result showed that the embryogenic calli  could be produced from MS + 2.4-D 3 mg/l + hydrolyzed casein 3000 mg/l treatment and the best media for shoot induction was MS + BA  2 mg/l + IAA 0.8 mg/l + zeatin 0.2 mg/l. The obtained plantlets were successfully acclimatized in the greenhouse.   Key words:  Embryogenic calli, rice,  shoot regeneration
Efek Pupuk KCl dan SP-36 Terhadap Kalium Tersedia, Serapan Kalium dan Hasil Kacang Tanah (Arachis hypogaea L.) pada Tanah Brunizem Silahooy, Ch.
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol 36, No 2 (2008): Jurnal Agronomi Indonesia
Publisher : Bogor Agricultural University

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Abstract

Molucca, in general and especially Ambon has  ground nut fields with low productivity  compared to national yield of ground nut. Brunizem has low levels of K and P nutrients. These conditions were interesting to be investigated.  The research took place in a plastic house for two months in Halong village, sub district Baguala. The research was done in a Completely Randomized Design with 2 Factors. The first factor was three levels of K fertilizer, ie K0 (no K fertilizer application), K1 ( 0.5 g KCl/pot) and K2 ( 1.0 g KCl/pot). The second factor was three levels of P fertilizers, ie P0 (no P fertilizer application), P1 (0.6 g SP-36/pot), and P2 (1.2 g SP-36/pot). The aim of the research was to investigate the availability and sorption of potassium, growth and dryweight-of ground nut (Arachis hypogaea L.) seed due to the application of KCl and SP-36 fertilizers on Brunizem. The results of this research showed a high significant effect of potassium fertilizer treatment on soil-pH, availibility and sorption of K, plant height, stem diameter, and dry-seed weight of ground nut.  Treatment g P fertilizer has a significant effect on soil pH, available K, plant height, and dry weight of seed. The interaction of K and P fertilizers had no significant effect on K availability and sorption of K.  K availability  of 0.26 me/100 g and 4.95% of plant-K was attained at the treatment of 1.0 g KCl/pot. The high dry yield of ground nut (17.35 g/pot) was achieved at  dose of 1.0 g KCl/pot, meanwhile dose of 1.2 g  SP-36/pot gave the highest seed-dry yield of ground nut.   Key words:  K availability, K sorption, phosphate, ground nut    
Karakterisasi Morfoekotipe dan Proksimat Pala Banda (Myristica fragrans Houtt.) Marzuki, Ilyas; Uluputty, M. R.; Aziz, Sandra A.; Surahman, Memen
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol 36, No 2 (2008): Jurnal Agronomi Indonesia
Publisher : Bogor Agricultural University

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Abstract

A field research was conducted to study morpho-ecotype and proximate aspects of  Banda nutmeg (Myristica fragrans Houtt.) in three ecotypes: Banda Islands, Ambon Island, and  Ceram Island in Maluku.  The objectives of the study were to characterize morpho-ecotype of the Banda nutmeg, to investigate the trees productivity across three ecotypes, and to identify the proximate characteristics of the fruit.  Ten productive nutmeg sample trees aged ranging 25 to 50 years were chosen for observations.  In morphological observation, 21 items were described based on IBPGR procedure, and then subjected to UPGMA cluster analysis.  The proximates of nutmeg flesh including edible portion (EP), water content, protein content, fat content, and pectin content were analyzed by AOAC procedure.  Morphological and proximate data were analyzed using SAS. Results show that Moluccas ecotypes characterized by hill and mountain has tectonic mountain physiography and karst soils with a slope of 16 to 40%.  Ambon and Banda ecotypes are mainly composed of volcanic soils, whilst Luhu has sediment.  The climate of Moluccas ecotype is dominated by IIIC type, except Banda Island which has IIB. The morphological traits of the nutmeg are stabile across three ecotypes (similarity index, SI 90%).  Productions of fruit, nutmeg, and mace show no difference between the three sites. They are 137.73, 19.27, and 3.07 kg per tree, respectively. All proximate parameters analyzed are not statistically different, except EP.  EP of Ambon ecotype is statistically different from that of Ceram but it is similar to Banda ecotype.   Key words:  Nutmeg, morpho-ecotype, proximate, ecotype.
Pengaruh Pemeraman Buah dan Periode Simpan terhadap Viabilitas Benih Pepaya (Carica papaya L.) Murniati, Endang; Sari, Maryati; Fatimah, Ema
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol 36, No 2 (2008): Jurnal Agronomi Indonesia
Publisher : Bogor Agricultural University

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Abstract

The objective of  this experiment was to study  the influence of post-harvest storage and storage period to seed viability. The research was conducted in the Laboratory of Seed Science and Technology and the green house at Leuwikopo IPB Darmaga, from February until August 2007. The experiment used split-plot design with three replications. The main plot was seven periods of storage: 0, 3, 6, 9, 12, 15, and 18 weeks. The sub plot was the period of post-harvest maturation storage (use the fruits with 30-40% yellow coloured): 0, 2, 4, 6 days post-harvest storage, and control fruits that ripe on the tree (with 80-90% yellow coloured). The control fruits have the best seed viability and vigor. Viability of  seed from fruits with 0, 2 and 6 days post-harvest storage was significantly less than that of control. Seed from four days post-harvest storage have same viability as control. Post-harvest storage can improve physiological seed quality on the seed that must be harvested before the time of physiological maturity, especially four days post-harvest storage.    Key words:  Papaya, seed, viability, post-harvest maturation storage, storage period
Keragaan dan Hubungan Berbagai Komponen Hasil Tanaman Karet (Hevea brasiliensis Muell. Arg.) pada Dua Populasi Hasil Persilangan PB 260 dengan PN Novalina, ,; Jusuf, M.; Wattimena, G. A.; Suharsono, ,; Sumarmadji, ,; Daslin, Aidi
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol 36, No 2 (2008): Jurnal Agronomi Indonesia
Publisher : Bogor Agricultural University

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Abstract

Latex yield of rubber tree (Hevea brasiliensis Muell. Arg.) is a complex trait influenced by external and internal factors. In this trial, F1 progenies of two populations (crossing PB 260 as high latex yielder x PN as low latex yielder) and their parents were used to study the characteristic of yield components, namely physiology, anatomy and growth characters which influence latex yield. Based on statistic analysis, it showed that latex yield of two populations had high variation among their F1 progenies.  The other variables such as girth,  bark thickness, number of latex vessel rings, plugging index, sucrose content and inorganic phosphate content also showed  high variation.  Based on path analysis and stepwise regression, it showed that the  number of latex vessel rings and plugging index had bigger direct effect on determining latex yield of A population (PB 260 x PN 7111), while girth and plugging index variables had  bigger direct effect on latex yield of C population (PB 260 x PN 7).   Key words:  Hevea brasiliensis Muell. Arg., latex yield,  F1 progenies, physiology and anatomy  characters  
Mekanisme Fisiologi Toleransi Cekaman Aluminium Spesies Legum Penutup Tanah terhadap Metabolisme Nitrat (NO3-), Amonium (NH4+), dan Nitrit (N02-) Utama, M. Zulman Harja
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol 36, No 2 (2008): Jurnal Agronomi Indonesia
Publisher : Bogor Agricultural University

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Abstract

The experiment was aimed to investigate the Al-tolerant mechanisms physiology of legume cover crops species related to metabolism NO3-,  NH4+, and N02-.  The results revealed that an addition of Al had less effect on Al-tolerant species compared to Al-sensitive in term of reduction in NO3-,  NH4+ and N02- uptake.  The reduction in Nitrit of  the  Al-tolerant species under Al treatment was less than in Al-sensitive species. The results suggested that in tolerant legume cover crops species, the higher level of Al tolerance seems to have emanated from efficient  NO3- metabolism and the higher N02- to NH4+.   Key words:  Legume cover crop, aluminum tolerance, NO3-,  NH4+ and N02-
Uji Ketahanan in Vitro Klon-klon Kentang Hasil Persilangan Kentang Kultivar Atlantic dan Granola terhadap Penyakit Layu Bakteri (Ralstonia solanacearum) dan Busuk Lunak (Erwinia carotovora) Maharijaya, Awang; Mahmud, Muhammad; Purwito, Agus
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol 36, No 2 (2008): Jurnal Agronomi Indonesia
Publisher : Bogor Agricultural University

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Abstract

Several bacterial pathogens can cause diseases of potato. Ralstonia solanacearum and Erwinia carotovora are those of the worlds most important diseases of potato, especially in tropical climates. This experiment was aimed to obtain putative potato cultivars having good tolerance to bacterial wilt caused by R. solanacearum and soft rot caused by E. carotovora. Two adopted potato cultivars in Indonesia, cv. Atlantic (2n=4X=48) and cv. Granola (2n=4X=48), were used as parents.  The experiment was arranged in a Randomized Complete Design.  Test for tolerance was perfomed in vitro using BF15 as susceptible control and Solanum stenotonum as tolerance control. The result showed that there was high diversity of tolerance level to both R. solanacearum and E. carotovora.  Some clones showed good tolerance level as compared to cv. Atlantic and cv. Granola, but none showed that as compared to S. stenotonum.   Key words:  in vitro testing,  potato, R. solanacearum, E. carotovora  
Karakterisasi Sekuen Lengkap JJ3 yang Diisolasi dari Kedelai Toleran Naungan Khumaida, Nurul; Kisman, ,; Sopandie, Didy
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol 36, No 2 (2008): Jurnal Agronomi Indonesia
Publisher : Bogor Agricultural University

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Abstract

The aim of this study was to characterize full length sequence of JJ3 isolated from shade tolerant soybean. The characterization of full length sequence involved analyses of structure of full length sequence, open reading frame (ORF) or coding sequence (CDS), and homology. The analyses of JJ3 full length sequence structure were done using GeneScanW program, coding sequence (CDS) or open reading frame (ORF) using ORF Finder program, and the homology of JJ3 full length sequence were done using BLAST and clustalW programs. Results showed that the full length sequence of JJ3 consisted of single exon and polyA. Single exon was a coding sequence (CDS) 633 bp produced open reading frame (ORF) with 210 amino acid deduction comprised of 136 conserved amino acids and 77 varied amino acids. The conserved domain of JJ3 produced functional protein, PsaD photosystem I (PSI) subunit, related to photosynthetic transport electron in PSI reaction center. The full length of JJ3 homolog to psaD, a gene encoding protein subunit photosystem I (PSI) related to mechanism of plant adaptation to shade stress, in wood tobacco (Nicotiana sylvestris), rice (Oryza sativa), tomato (Lycopersicon esculentum), barley (Hordeum vulgare), spinach (Spinacia oleracea), Arabidopsis (Arabidopsis thaliana), and potato (Solanum tuberosum).     Key words: full length sequence, gene, homology, shade tolerant, soybean
Potensi Hasil Jarak Pagar (Jatropha curcas L.) pada Satu Tahun Budidaya di Lahan Kering Lombok Barat, Nusa Tenggara Barat Santoso, Bambang B.; Hasnam, ,; Hariyadi, ,; Susanto, Slamet; Purwoko, Bambang S.
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol 36, No 2 (2008): Jurnal Agronomi Indonesia
Publisher : Bogor Agricultural University

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Abstract

Productivity of Physic Nut (Jatropha curcas L.) depends on environment and culture intensity. We evaluated yield potential of Jatropha curcas L. at dry land (sandy entisol soil type) of West Lombok, West Nusa Tenggara using three types of propagules, i.e., stem cutting, seed, and seed after pruning and were designed with Randomized Block Design in three replications during November 2006 until November 2007. Result showed that productivity of nut is 880.78 kg/ha (352.31 g/plant) from stem cutting, 749.81 kg/ha (299.92 g/plant) from seed, and 484.11 kg/ha (193.64 g/plant) from seed followed by pruning after 2 weeks planting.   Key words:  Productivity, pruning, seed,  stem cutting,  type of propagule

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