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 7 Documents
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Perbenihan Sayuran di Indonesia: Kondisi Terkini dan Prospek Bisnis Benih Sayuran Anwar, Aswaldi; Sudarsono, ,; Ilyas, Satriyas
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol 33, No 1 (2005): Jurnal Agronomi Indonesia
Publisher : Bogor Agricultural University

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Abstract

Indonesian Vegetable Seeds: Current Condition and Prospects in Business of Vegetable Seeds
Sulfur Source, Rate, and Methods of Application for Polyethylene-mulched Tomato Susila, Anas D.; Locascio, Salvadore J.
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol 33, No 1 (2005): Jurnal Agronomi Indonesia
Publisher : Bogor Agricultural University

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Abstract

Tomato (Lycopersicon esculentum L.) was grown with polyethylene mulch and drip irrigation on a Millhopper fine sandy soil testing very high in P and low in organic matter during two seasons to evaluate the effect of S source, rate, and application methods on plant growth and yield of fruit.  Sulfur rate of 34 and 68 kg S.ha-1 were applied with  preplant (broadcast in the bed), drip (10 weekly drip application), and  by split applications (50% preplant and 50% drip).  In split applications, S sources evaluated were ammonium sulfate and ammonium thiosulfate.  Plant height was increased with S application from 0 to 68 kg S.ha-1 in both studies. However, response on plant dry weight only occurred in spring 1999. Total marketable yield was 17.9 tons.ha-1 with 0 kg S.ha-1 and was increased linearly to 48.1 tons.ha-1 with application of 68 kg S.ha-1 in Spring 1999, but no response to S was obtained in the Spring 1998 study. Measured variables were not affected by S source and methods of application.  Increasing S application from 0  to 68 kg S.ha-1 reduced leaf and plant tissue P concentration 14 and 12% at mid season, 26 and 25% at  late season sampling times, respectively.  S application of 68 kg S.ha-1 reduced soil pH approximately 0.3 unit at the end of the season in both studies.   Key  words:  drip irrigation, sulfur,  fertigation, Lycopersicon esculentum
Studi Komersialisasi Benih Padi Sawah Varietas Unggul Hadi, Setia; Budiarti, Tati; Haryadi, ,
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol 33, No 1 (2005): Jurnal Agronomi Indonesia
Publisher : Bogor Agricultural University

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Abstract

Rice is the most important food in Indonesia and the rice demand has gradually increased during some decades.  There are several efforts to increase national rice production in order to minimize  rice import, such as using seed of improved variety, fertilizer, protection from pest and diseases, improving water management  and post harvest handling.  Cultivation of improved  variety is the most efficient way to  increase  rice production in Indonesia.   There are several improving characteristics on new released variety such as : early mature, high productivity, resistant to pests and diseases, resistant to lodging, and  high quality of rice.  During 1960 - 2000, more than 90 improved varieties were released by Ministry of Agriculture, but only several varieties (about 10%)  were accepted by the farmer and  cultivated in a large-scale area during  a long periode.   IR 64 is the most popular variety in many provinces more than 12 years, so that the variety has the  highest commercial level  and  efficency index among Cisadane, PB 42, PB 46 and the old improved variety.    Key words: Rice, Commercialization, Efficiency index
Analysis of Quantitative Trait Loci for Protein Content in Soybean Seeds using Recombinant Inbred Lines Tajuddin, Teuku
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol 33, No 1 (2005): Jurnal Agronomi Indonesia
Publisher : Bogor Agricultural University

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Abstract

Protein content in the seed is quantitatively inherited and controlled by polygene.  The quality of seed protein content has been studied extensively, however, information on its quantity is still limited.  In order to analyze the genetic basis of these traits, recombinant inbred lines (RILs) derived from a cross between Glycine max (L.) Merrill variety Misuzudaizu and variety Moshidou Gong 503 were planted in two environments and evaluated for seed protein content.  The broad sense heritability of the traits ranged from 0.74 to 0.79 in our RIL population.  Single-factor analysis of variance, interval mapping and composite interval mapping were used to detect significant associations between traits and genetic markers.  A total of 10 QTLs, which were significant in at least one environment were identified.  Each QTL explained the total phenotypic variation for protein content in the range from 3.4% to 29.7%.  Among all the detected QTLs, three of them were detected in both environments.  QTLs identified in this study were mapped in the soybean linkage map.  The results obtained in our study may serve as a base for analyzing the genetic control of protein content and may eventually enable to change the seed constituents.   Key words: Glycine max (L.) Merrill, quantitative trait loci, protein, recombinant inbred lines.
Defisit Evapotranspirasi sebagai Indikator Kekurangan Air pada Padi Gogo (Oryza sativa L.) Sulistyono, Eko; Suwarto, ,; Ramdiani, Yulianti
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol 33, No 1 (2005): Jurnal Agronomi Indonesia
Publisher : Bogor Agricultural University

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Abstract

The research was conducted to study the correlation between deficit of evapotranspiration and yield decreasing.   Factorial experiment was arranged in Randomized Block Design.  First factor was irrigation frequency of 1, 2, 4 and 6 days.  Second factor were nine upland rice lines.  Evapotranspiration was measured with simple lysimeter based on water balance. There was positive correlation between deficit of evapotranspiration and yield decreasing. Defisit of evapotranspiration as much as 240.06 mm caused yield decreasing of 90% and dry matter weight decreasing of 72.5%. The relation between total evapotranspiration (E, mm) and dry matter weight (DM, g/plant) was DM = 0.0245 E + 13.85.  Water use efficiency or yield and evapotranspiration ratio correlated with leaf width and sum of seed each panicle  positively .  Increasing leaf width and sum of seed each panicle could increase water use efficiency.    Key Words : evapotranspiration, water use efficiency, upland rice, lysimeter.
SCAR (Sequence Characterized Amplified Region) Analysis for Pi-b and Pi-ta genes on 28 Genotypes of Rice Sobir, ,; Santoso, ,; Aswidinnoor, Hajrial; Amir, Mukelar
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol 33, No 1 (2005): Jurnal Agronomi Indonesia
Publisher : Bogor Agricultural University

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Abstract

Evaluation to blast disease (Pyricularia grisea) resistance was carried out by using two SCAR (Sequence Characterized Amplified Region) markers of Pi-b and Pi-ta blast resistance genes, and spray-inoculation method with 10 races of P. grisea on 28 paddy genotypes, that consisted six wild genotypes of rice. The results revealed that among 28 paddy genotypes, fifteen genotypes carrying both genes including Oryza rufipogon; six genotypes carrying Pi-b genes including O. alta, two genotypes carrying Pi-ta gene, and five genotypes did not possess both gene including O. glumaepatula, O. officinalis, O. latifolia, and O. malapuzhaensis. Based on infection intensity, the evaluated genotypes were vary in responses to different  ten races of P. grisea, indicated that the evaluated genotypes were  vary in carrying Pi genes. Analysis in detail indicated that existence of Pi-ta gene associated with lower infection intensity caused by P. grisea race 063 C.   Keywords:  SCAR markers, rice blast resistance, Pyricularia grisea
Comparison Analysis for Diversity Pattern of Introduction Banana Based on Phenotypic and RAPD Markers and Estimating Correlation Between Both of Them toTheir Genomic Composition Robi`ah, Hanik Rohmah; Sobir, Sobir; Surahman, Memen
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol 33, No 1 (2005): Jurnal Agronomi Indonesia
Publisher : Bogor Agricultural University

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Abstract

Banana accessions introduced from INIBAP Transit Center (ITC) have been studied their diversity revealed on phenotypic and RAPD markers. Both of them showed different clustering pattern and not fit to genomic composition. In order to know fitness level of clustering pattern both of them, comparison analysis have done to their similarity coefficient matrix, and followed by partial correlation analysis among phenotypic traits, and genomic composition. The comparison analysis resulting very poor correlation (r = 0.491). Partially correlation analysis among traits, DNA profile, and Musa genomic composition at 95-99% confidence revealed only OPA-18 line 2 related to accessions possessed pure “Aâ€Â genome, and they were together associated to green color of petiole margins. OPD-10 line 3, significantly, associated to accessions with genome dominated “Bâ€Â, but there was no correlation between both of them to any characters. These results suggested that some primers and characters may specifically associated with certain. Key words: Comparison analysis, Correlation analysis, Introduction bananas, Musa

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