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 9 Documents
Search results for , issue " Vol 33, No 3 (2005): Jurnal Agronomi Iindonesia" : 9 Documents clear
Evaluasi Daya Pemulih Kesuburan Padi Lokal dari Kelompok Tropical Japonica Hairmansis, Aris; Aswidinnoor, Hajrial; Trikoesoemaningtyas, ,; Suwarno, ,
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol 33, No 3 (2005): Jurnal Agronomi Iindonesia
Publisher : Bogor Agricultural University

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Abstract

Twenty seven land races of tropical japonica rice were test-crossed with a ´WA´ type cytoplasmic male sterility (CMS) line IR58025A to evaluate their fertility restoration ability.  Based on pollen fertility and spikelet fertility of their F1 hybrids, genotypes are classified into maintainer or restorer.  The result showed frequency of maintainers among genotypes was higher than restorers.  Four genotypes, i.e., Ase Lapan, Ase Mandi, Hawara Bunar and Lampung Kuning were designated as maintainers.  These maintainers possess a number of desirable traits such as pest resistance and abiotic stresses tolerance; thus they will be useful for improving parental lines of hybrid rice.     Key words: Land race, test cross, fertility restoration
Pertumbuhan, Produksi dan Kandungan Triterpenoid Dua Jenis Pegagan (Centella asiatica L. (Urban)) Sebagai Bahan Obat pada Berbagai Tingkat Naungan Kurniawati, Ani; Darusman, Latifah K.; Rachmawaty, Rani Yulie
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol 33, No 3 (2005): Jurnal Agronomi Iindonesia
Publisher : Bogor Agricultural University

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Abstract

The research was aimed to determine the optimum shading level and effect two types of Indian Pennywort (Centella asiatica L. Urban)) on growth, production, and triterpernoid. The research was conducted on  March until November 2004 at BIOFARMAKA Research Station, Darmaga and chemical analysis was conducted at Analytical Chemistry Laboratory, FMIPA, Baranangsiang. Split plot design with two factors was used in this experiment. The first factor was shading level as main plots consisting of 0, 25, 55, and 75% shading level. The second factor was type of Indian Pennywort  as subplots  consisting  of big and small Indian Pennywort. Result of the reseach showed that shading effects decrease leaf area indeks, yield, and composition of triterpenoid content of Indian Pennywort. No shading treatment  showed optimum growth and yield. The combination of 25% shading and small type of Indian Pennywort  gave the highest triterpenoid content. Both types of Indian Pennywort showed best growth; the difference in length of petiole, number of leaf  and shoots but the small one gave the best yield.   Key words :  Indian Pennywort type, shading level, triterpenoid  
Pengembangan Kriteria Seleksi pada Pisang (Musa sp.) Berdasarkan Analisis Lintas Wirnas, Desta; Sobir, Sobir; Surahman, Memen
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol 33, No 3 (2005): Jurnal Agronomi Iindonesia
Publisher : Bogor Agricultural University

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Abstract

This research was aimed to develop selection criteria based on correlation and path coefficient analysis.  The experiment was carried out at CETROFS (Center for Tropical Fruit Studies) field station of Bogor Agricultural University, Tajur.  The result showed that plant height, pseudostem diameter, number of leaves, weeks to harvest,  finger number per plant, and mean of  finger weight were positively correlated with bunch weight. Pseudostem diameter,  number of leaves, finger number per plant have strong direct effect on bunch weight,  with path coefficient 0.321, 0.264, 0.297, and 0.722, subsequently.  However, the plant height showed strong indirect effect on bunch weight  through  pseudostem diameter. These characters  are useful as a selection criteria for developing new variety of banana  with higher bunch weight   Key words: path coefficient, selection criteria, banana  
Analisis Pembandingan Pola Keanekaragaman Pisang Introduksi Berdasarkan Penanda Fenotipik dengan Penanda RAPD dan Pendugaan Korelasi antara Keduanya terhadap Komposisi Genomiknya Sobir, Sobir; Surahman, Memen
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol 33, No 3 (2005): Jurnal Agronomi Iindonesia
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 "A" genome, and they were together associated to green color of petiole margins.  OPD-10 line 3, significantly, associated to accessions with genome dominated "B", 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
Tingkat Kritis Intensitas Cahaya Relatif Lima Genotip Kacang Hijau (Vigna radiatus L.) Sundari, Titik; Soemartono, ,; Tohari, ,; Mangoendidjojo, W.
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol 33, No 3 (2005): Jurnal Agronomi Iindonesia
Publisher : Bogor Agricultural University

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Abstract

The aim of this experiment was to determine the critical relative light intensities (RLI) level of mungbean. The critical level was determined by 50% decreasing of grain yield. The experiment was conducted at the ILETRI (Indonesian Legume and Tuber Crops Research Institute), Malang, from February to May 2004. Five genotypes of mungbean, i.e. VC2768B, Kenari, Local Wongsorejo, Nuri and MLG 431 were grown in  four relative light intensities (RLI) levels, respectively 100%, 75%, 50% and 25%, that were prepared before planting with artificial shading. The experimental design was a randomized complete block with three replicates. The results showed that reducing RLI increased specific leaf area, but decreased leaf number, leaf area, leaf, stem and root dry weight, as well as pod number, pod dry weight and grain yield per plant. Reducing RLI from 100% to 75%, 50% and 25% did result in 15%, 56% and 71% decreased grain yield of mungbean. The critical level of RLI on mungbean was 48% or was found at 52% shading.   Key words: Vigna radiatus L., genotype, critical level, relative light intensities, growth, yield
Efek Aplikasi Synechococcus sp. pada Daun dan Pupuk NPK terhadap Parameter Agronomis Kedelai Soedradjad, R.; Avivi, Sholeh
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol 33, No 3 (2005): Jurnal Agronomi Iindonesia
Publisher : Bogor Agricultural University

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Abstract

Synechococcus sp. is a species photosynthetic bacterium that has symbiotic mutualism with plant.  Research on this field is not many. Foliar application of this bacterium may increase the growth and yield characteristics.  The aim of this research was to determine the effect of Synechococcus sp. application and NPK fertilizer on soybean growth and yield.  The research was conducted in Pusat Inkubator Agribisnis (PIA) Jember University on February until May 2004.  Split plot design was used with 2 factors, Synechococcus sp. as sub plot (B0: without bacteria and B1: with bacteria application) and NPK fertilizers as main plot (P0: 0 g/plant; P1: 0.347 g/plant; and P2: 0.875 g/plant) with three replications. The result showed that the interaction between Synechococcus sp. and NPK fertilizers treatments was not significant.  The  bacteria applications significantly increasing plants growth (42.9%), leaf area index (294.6%), number of productive stem per plant (141.3%), number of productive nodes per plant (40.3%), pods weight per plant (175.2%), number of pods per plant (152.8%), grain weight per plant (80.5%), dry weight (209.8%), and 100 grains weight per plant (3.4%).  The fertilizers significantly affected only on plants growth (44.6%) and number of pods per plant (29.4 %).    Key words:  Glycine, Synechococcus sp., NPK  
Pengaruh L-Sistein terhadap Efisiensi Transformasi Genetik Jagung (Zea mays) Menggunakan Agrobacterium Utomo, Setyo Dwi
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol 33, No 3 (2005): Jurnal Agronomi Iindonesia
Publisher : Bogor Agricultural University

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Abstract

An efficient procedure of genetic transformation ultimately can accelerate the process of cultivar development of maize.  The objective of this study was to evaluate the effect of L-cysteine added to co-cultivation medium on the efficiency of Agrobacterium-mediated transformation of two genotypes of maize.  Explants of immature embryos were isolated from immature ears genotypes Hi-II and Tom Thumb harvested 11-13 days after pollination.  Then explants were inoculated with Agrobacterium strain C58C1 carrying pPTN345 vector and cultured in co-cultivation medium for 2 days then on delay medium for 14 days, on selection medium for 4 x 14 days, on regeneration medium, and finally on germination medium.  Co-cultivation media contained either 0 or 100 mg/L L-cysteine.  Based on assay at 2 days after inoculation,the transient expression of GUS at scutelar side of explants co-cultivated on medium containing 100 mg/L cysteine was higher than that of the control (0 mg/L cysteine).  Transient expression of GUS on the explants of Tom Thumb was higher than that of Hi-II.  However, transgenic plants in this study were only produced from Hi-II explants co-cultivated in a medium amended with 100 mg/L L-cysteine. No transgenic plants was produced from explants of Tom Thumb due to low efficiency of induction of embriogenic calli.  The efficiency of transformation using explants of Hi-II cocultivated in a medium amended with 100 mg/L L-cysteine was 4 independent transformants or transgenic plants out of 70 explants inoculated or 5.7%.    Key words:  Agrobacterium tumefaciens, corn, L-cysteine, Hi-II, Tom Thumb
Indeterminasi Sekuensial Pembungaan dan Ketidakmampuan Produksi Kedelai di Lapang Akibat Penambahan Cahaya Kontinu pada Kondisi Terbuka dan Ternaungi Agusta, Herdhata; Santoso, Imam
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol 33, No 3 (2005): Jurnal Agronomi Iindonesia
Publisher : Bogor Agricultural University

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Abstract

Additional continuous light (photoperiod of 24 hours/day) with irradiation value of 0.61 cal/cm2/minute and illumination value of 59 lux was able to suppress the development of flowering, pod building, grain filling and the production of soybean variety Bromo,  so that the sum of flowers, pods and grain production dropped and reached to null value.   However, the plant height increased with remarkable measurement from normally 78.0 cm to be 193.2 cm.  At the later condition the plant lodged and crept.  Due to additional continuous light irradiation at value of 0.03 cal/cm2/minute with average illumination value of 17 lux, the grain production was still null ton/ha.  However, the formed flowers and pods were not well developed.  At very little additional continuous light irradiation at the value of 0.01 cal/cm2/minute with illumination value of  2 lux, soybean production reached only 0.72 tons/ha, which at the normal condition it was able to produce grain legumes in amount to 1.53 tons/ha.  Light shading at the level of 56% could not improve the negative effect of the additional continuous light excess, so that the grain production was not much better.  However, grain production was either not reduced significantly due to the light shading.  It showed that the soybean is well tolerant against the shading treatment at this additional light condition.   Key words :  light, shading, soybean, air carbon dioxide, photoperiod  
Sifat-sifat Kimia dan Mineralogi Tanah serta Kaitannya dengan Kebutuhan Pupuk untuk Padi (Oryza sativa), Jagung (Zea mays), dan Kedelai (Glycine max) Nursyamsi, Dedi; Suprihati, ,
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol 33, No 3 (2005): Jurnal Agronomi Iindonesia
Publisher : Bogor Agricultural University

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Abstract

Laboratory experiment was conducted to identify soil chemical and mineralogical characteristics from topsoil (0-20 cm) of Inceptisols, Oxisols, Vertisols, and Andisols, as well as its relationship with the requirement of NPK, lime, and organic matter fertilizers for rice, maize, and soybean at laboratory of Indonesian Soil Research Institute and Soil Science Department of Bogor Agricultural University.  The result showed that Inceptisols was dominated by kaolinite (1:1), Oxisols by kaolinite and goethite (hydroxide), and Vertisols by smectite (2:1). Andisols had kaolinite and crystobalite (oxide) minerals in it, while amorphous materials could not be detected through X-ray Diffraction (XRD) method.  The soil reaction of Inceptisols, Oxisols, and Andisols was acid; exchangeable (exch) Ca and Mg, the contents of K and P, as well as base saturation (BS) of the soils were low. On the contrary, the soil reaction of Vertisols was neutral; exch. Al and H were very low, whereas exch. Ca and Mg, the contents of K and P, as well as base saturation (BS) of the soil were high. Both Vertisols and Andisols had high cation exchange capacity (CEC) which was from permanent charge in Vertisols and from variable charge (organic matter) in Andisols. Fertilizer requirement for crops in the soil was affected by land use system, plant species, soil nutrient content and its behavior in the soil system.   Key words: Soil characteristics, fertilizer, rice, maize, soybean.  

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