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INDONESIA
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy)
ISSN : 20852916     EISSN : 23373652     DOI : -
Aims and Scope Aims Indonesian of Journal Agronomy (Jurnal Agronomi Indonesia), the official journal of the Indonesian Society for Agronomy, publishes primary research paper, review article, policy analysis and research notes and preliminary results in all areas of agronomy. Manuscripts could be written either in English or in Indonesia. Scope Indonesian of Journal Agronomy (Jurnal Agronomi Indonesia) covers agronomy in broad sense including plant production, genetic and plant breeding, plant physiology, plant ecology, plant biotechnology, modeling, seed science and technology and weeds science on food, horticulture, plantation, and forage crops.
Articles 971 Documents
Karakter Anatomi Daun dari Kultur Tunas Artemisia annua L. Juliarni, ,; Dewanto, Hamami Alfasani; Ermayanti, Tri Muji
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol. 35 No. 3 (2007): Jurnal Agronomi Indonesia
Publisher : Indonesia Society of Agronomy (PERAGI) and Department of Agronomy and Horticulture, Faculty of Agriculture, IPB University, Bogor, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (549.067 KB) | DOI: 10.24831/jai.v35i3.1336

Abstract

Artemisia annua L. produce artemisinin, an endoperoxide sesquiterpene lactone, which is effective against resistant strains of Plasmodium falciparum, the malarial parasite. Artemisinin in foliar tissue are localized entirely in subcuticular space of capitate glandular trichomes. This research was performed to investigate the anatomical structures especially glandular trichomes which associated with artemisinin production in leaves of five different shoot culture clones (A, B, C, D, and E clones). Observation of anatomical characters of leaves was done by making cross-section, while observation of trichomes was performed using Scanning Electron Microscopy.  The leaves of five clones showed bifacial anatomical structure.  The leaf thickness of E clone was the highest (96.8 µm), while those of four other clones were relatively the same ranging from 62.8 µm to 66.6 µm. Glandular trichomes were distributed throughout the lamina of leaves with the highest distribution in adaxial parts of  the leaves. The size of uppermost secretory cells of glandular trichomes was relatively the same in five clones observed. There were variations in density of  glandular  trichomes in five clones observed. A and B clones had higher density of glandular trichomes i.e. 56.9 and 60.5/mm2, while three other clones had density which range from 43.0 to 49.7/mm2. It was suggested that A and B clones were the potential clones in producing artemisinin in vitro due to their larger leaf size and higher density of glandular trichomes.   Keywords :  Artemisia annua, shoot culture, anatomical structure of leaf
Pola Pewarisan Adaptasi Kedelai (Glycine max L. Merrill) terhadap Cekaman Naungan Berdasarkan Karakter Morfo-Fisiologi Daun Kisman, ,; Trikoesoemaningtyas, ,; Sobir, ,; Khumaida, Nurul; Sopandie, Didy
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol. 36 No. 1 (2008): Jurnal Agronomi Indonesia
Publisher : Indonesia Society of Agronomy (PERAGI) and Department of Agronomy and Horticulture, Faculty of Agriculture, IPB University, Bogor, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (57.816 KB) | DOI: 10.24831/jai.v36i1.1338

Abstract

The objective of this study was to analyze the inheritance pattern of soybean adaptation to shade stress based on leaf morpho-physiological characters. Genetic materials used in this study consisted of 22 plants of low irradiance (LI)-tolerant genotype (Ceneng) and 22 plants of LI-sensitive genotype (Godek); 21 plants of F1 (Ceneng x Godek); and 114 plants of F2 populations (derived from F1). These populations were planted under shading of paranet 50%. The population was arranged in a Randomized Complete Block Design with two replicates. Analysis of inheritance of soybean adaptation involved estimation of heritability (broad sense) and gene action. Results of this study showed that: adaptation of soybean to low light stress based on characters of yield per plant was highly heritable (68% of broad sense) with partial dominant mode of action. Characters of leaf area and specific leaf weight were highly (68% of broad sense) and moderately (48% of broad sense) heritable, respectively, with additive mode of action. Soybean adaptation based on leaf physiological characters (chlorophyll contents) was highly heritable (70% - 86% of broad sense) in epistatic mode of action.   Key words:  Soybean, leaf morpho-physiological character, heritability, gene action
Pengaruh Kadar Air Awal, Kemasan dan Lama Simpan terhadap Protein Membran Dalam Mitokondria Benih Kedelai Tatipata, Aurellia
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol. 36 No. 1 (2008): Jurnal Agronomi Indonesia
Publisher : Indonesia Society of Agronomy (PERAGI) and Department of Agronomy and Horticulture, Faculty of Agriculture, IPB University, Bogor, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (166.523 KB) | DOI: 10.24831/jai.v36i1.1339

Abstract

The research aimed at studying the effect of moisture content, package and storage period on mitochondrial inner membrane protein of soybean seed. The research was conducted in the laboratory of Seed Technology and Microbiology of Gadjah Mada University from May 2002 to August 2003. A Randomized Complete Block Design was used in the experiment with three factors and three replications. The first factor was moisture content consisted of three levels, i.e. 8%, 10%, and 12%. The second was three kinds of packages namely polyethylene plastic, wheat and aluminium foil. The third was the storage period, i.e. 0, 1, 2, 3, 4, 5 and 6 months. Data collected were analyzed by analysis of variance and Duncan Multiple Range Test. Regression and correlation analysis were done to study the correlation between germination, vigor and protein content of mitochondria inner membrane. Record was made on protein content of mitochondrial inner membrane and its electrophoresis profile, electrical conductivity, germination and vigor. The result showed that moisture content, packaging and storage period had significant influences on protein content of the mitochondria inner membrane and its electrophoresis profile. Inner membrane protein of mitochondrial had a positive correlation with germination and vigor. It was concluded that moisture content, package and storage period affected inner membrane protein content of mitochondria and its protein electrophoresis profile. The protein content of mitochondrial inner membrane, germination and vigor of soybean seed stored in aluminium foil sack at 8%, 10% and 12% moisture content did not decreased within 6 months. Cell membrane damage affected mitochondrial damage.   Key words:  Soybean seed, mitochondria inner membrane protein
Perbaikan Teknik Kultur Embrio Kelapa Kopyor (Cocos nucifera L.) Asal Sumenep Jawa Timur Melalui Penambahan Bahan Aditif dan Pengujian Periode Subkultur Sukendah, ,; Sudarsono, ,; Witjaksono, ,; Khumaida, Nurul
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol. 36 No. 1 (2008): Jurnal Agronomi Indonesia
Publisher : Indonesia Society of Agronomy (PERAGI) and Department of Agronomy and Horticulture, Faculty of Agriculture, IPB University, Bogor, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (250.721 KB) | DOI: 10.24831/jai.v36i1.1340

Abstract

The success of culturing of "Kopyor" coconut (matured coconut with broken meat particles due to abnormal formation of endosperm) through embryo culture depends on the medium used.  A revised protocol on medium embryo culture was done to increase embryo germination and plantlet production of kopyor coconut obtained from Sumenep.  Embryos excised from mature nuts were cultured in solid Eeuwens basal media supplemented with 150 ml coconut water, 150 ml coconut milk, 50 mg/l thio-urea, and 100 mg/l thio-urea. Germinating embryos were transferred to solid Eeuwens basal media containing 100, 150, and 200 ml/l coconut water.  Subsequent transfers of the germinating embryos to fresh media to complete seedling development were done at different periods of subculture, i.e., 1, 2, 3, and 4 months. The highest viability of kopyor embryo was shown by 150 ml/l coconut water, about 95% embryos in this medium germinated. At plantlet phase, addition of coconut water did not give a positive result to the growth of kopyor plantlets.  However, coconut water could increase the complete plantlet, i.e., plantlet with shoot and good root. Growth and number of kopyor plantlets obtained were the best when the plantlets transferred into fresh medium every 2 months.   Key words:  Embryo culture, kopyor coconut, additive agents, period of subculture
Kajian Karakter Ketahanan terhadap Cekaman Kekeringan pada Beberapa Genotipe Bibit Kelapa Sawit (Elaeis guineensis Jacq.) Palupi, Endah Retno; Dedywiryanto, Yopy
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol. 36 No. 1 (2008): Jurnal Agronomi Indonesia
Publisher : Indonesia Society of Agronomy (PERAGI) and Department of Agronomy and Horticulture, Faculty of Agriculture, IPB University, Bogor, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (96.979 KB) | DOI: 10.24831/jai.v36i1.1341

Abstract

The research was aimed to study the response of oil palm seedlings to drought stress and to determine characters which would be useful in selection for drought resistance. This research was conducted at PT Dami Mas Sejahtera field station and SMART Research Institute laboratory Libo, Riau from April to August 2005. The research was arranged in split plot design with two factors in randomized block design. The main plot was soil water content, i.e. 100%FC/field capacity : 24+1%; 75%FC : 18+1%; 50%FC : 12+1%; and 25%FC : 6+1%, whereas the subplot was four genotypes: G1: 635xAP.01, G2: 635x742.316, G3:15x742.316 and G4: 15xAP.01. The result showed that only soil water content as low as 25%FC could significantly inhibit seedling growth, as indicated by reduction of leave water content,  shoot and root dry weight, seedling height, root length and volume; and an increase of water deficit. Soil water content ranging from 50-100% FC did not give any significant effect. Based on the physiological responds, G1 and G3 were relatively more resistant to drought stress than G2 and G4. Leaf water content was the easiest, cheapest, fastest and non-destructive variable to be used for early selection of drought resistant oil palm seedlings.   Key words:  Oil palm, seedling, character for selection, drought resistant
Pengaruh Perlakuan Deoperkulasi Benih dan Media Perkecambahan untuk Meningkatkan Viabilitas Benih Aren (Arenga pinnata (Wurmb.) Merr.) Rofik, Aenur; Murniati, Endang
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol. 36 No. 1 (2008): Jurnal Agronomi Indonesia
Publisher : Indonesia Society of Agronomy (PERAGI) and Department of Agronomy and Horticulture, Faculty of Agriculture, IPB University, Bogor, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (57.357 KB) | DOI: 10.24831/jai.v36i1.1342

Abstract

The research was aimed at studying the effects of seed deoperculation treatment and germination substrate to enhance viability of sugar palm seed. This research was conducted from February until August 2006 at Seed Science and Technology Laboratory and Turfgrass area. Randomized block design with 2 factors was used in this research. The first factor consisted of five treatments namely: control, without seed treatment (P0), deoperculation with sand paper precisely on the embryo position (PI), deoperculated seed and heating in the incubator at 40oC for 5 minutes (P2), deoperculated seed and soaking in the potassium nitrate (KNO3 0.5%) for 36 hours (P3) and deoperculated seed, soaking in the potassium nitrate for 36 hours and heating in the incubator at 40oC for 5 minutes (P4). The second factor substrate used for germination consisted of five types, i.e., sand (M1), soil and compost mixed, each in equal (1:1) portions by weight (w/w) (M2), saw dust (M3), cocopeat (M4) and paddy charcoal (M5). The result showed that seed deoperculation gave very significant effect to enhance seed viability. The interaction between seed treatment and substrate significantly influenced on potential growth, germination percentage, speed of germination, the length of embryonic axis and the length of root. The highest potential growth of 96.67% was obtained from deoperculated seed and heating in the incubator at 40oC for five minutes and germinated in sand, whereas highest germination percentage of 88.33% was reached by deoperculated seed and germinated in sand. Sand (M1), cocopeat (M4) and paddy charcoal (M5) were suitable for germination substrate of sugar palm seed.   Key words:  Sugar palm seed, seed viability, deoperculation, cocopeat, paddy charcoal.
Peningkatan Laju Pertumbuhan dan Kandungan Flavonoid Klon Daun Dewa (Gynura pseudochina (L.) DC) Melalui Periode Pencahayaan Ghulamahdi, Munif i; Aziz, Sandra A.; Nirwan, ,
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol. 36 No. 1 (2008): Jurnal Agronomi Indonesia
Publisher : Indonesia Society of Agronomy (PERAGI) and Department of Agronomy and Horticulture, Faculty of Agriculture, IPB University, Bogor, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (61.119 KB) | DOI: 10.24831/jai.v36i1.1343

Abstract

Lights are influential to increase plant flavonoids content.  The bioactives is needed as medication for human cancer.  The research objectives were to investigate  the effect of lighting periods on the growth and flavonoid content of Gynura pseudochina clones. A split plot design was used  with lighting periods as the main plots (100% light  (full light) for 4 months; 25% shading for 1 month, full light 3 months; 25% shading for 2 months, full light for 2 months; 25%  shading  for 3 months, full  light  for 1 months; 25%  shading  for 4 months; 50% shading  for 1 month, full light for  3 months; 50%  shading for 2 months, full light for 2 months; 50% shading for 3 months, full light for 1 montht; 50% shading for 4 months) and sub plots were two clones (clone 9 from in vitro culture and clone 7 from shoot cuttings). The results showed that maximum LAI (Leaf Area Index) (2.72), RGR (Relative Growth Rate) (0.062 g/g/day), LAR (Leaf Area Ratio) (168.55 cm2/g) and NAR (Net Assimilation Rate) (0.00093 g/cm2/day) were obtained from plants grown under 50% shading for 4 months, full light for 4 months, 50% shading for 2 months and  full light for 2 months, respectively. The maximum plant biomass  (90.92g) was  produced by  plants  grown  under 50%  shading  for 1 month  and full light  for 3 months, while maximum total flavonoids content (11.92%) was obtained from plants under 50% shading for 3 months  and full  light for 1 month, whereas maximum anthocyanine content from those grown under 50% shading for 1 month and full light for 3 months. Clone 9 produced LAI, LAR, and anthocyanine content higher than clone 7, but RGR, NAR, total biomass, and total flavonoid content was lower than clone 7.   Key words:  Lighting periods, growth, flavonoids, Gynura pseudochina , clones
Produksi Biomassa dan Bahan Bioaktif Kolesom (Talinum triangulare (Jacq.) Willd) dari Berbagai Asal Bibit dan Dosis Pupuk Kandang Ayam Susanti, Hilda; Aziz, Sandra Arifin; Melati, Maya
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol. 36 No. 1 (2008): Jurnal Agronomi Indonesia
Publisher : Indonesia Society of Agronomy (PERAGI) and Department of Agronomy and Horticulture, Faculty of Agriculture, IPB University, Bogor, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (58.266 KB) | DOI: 10.24831/jai.v36i1.1346

Abstract

Field experiment to study biomass and bioactive compound productions of   Talinum triangulare from different propagules and chicken manure dosages was conducted at Leuwikopo, Dramaga, Bogor, West Java, Indonesia from September to November 2005.  The research used split plot design with 3 replications.  The main plot was propagules (seed and stem cutting) and sub plot was chicken manure dosages (0, 5, 10, and 15 t ha-1). Bioactive compound was determined qualitatively. The results showed that stem cutting gave the highest leaf dry weight (7.78 g plant-1) and tuber dry weight (4.99 g plant-1). The bioactive compounds (alkaloid, steroid, saponin, tannin, and flavonoid) were not influenced by propagules. The dosage of 15 t ha-1 chicken manure gave the highest leaf dry weight (10.73 g plant-1) and tuber dry weight (6.36 g plant-1). The bioactive compound decreased with the increasing chicken manure dosages. Interaction of stem cutting and 15 t ha-1 of chicken manure gave the highest leaf dry weight (12.43 g plant-1).   Bioactive compound and tuber dry weight were not influenced by the interaction of  propagules and chicken manure dosages.   Key words:  Bioactive compound, Talinum triangulare, propagules, chicken manure
Aktivitas Kitinase dan Peroksidase dari Ekstrak Protein Daun, Akar, Kalus dan Tunas In Vitro Trichosanthes tricuspidata Lour. Sukma, Dewi; Poerwanto, Roedhy; Sudarsono, ,; Khumaida, Nurul; Wiyono, Suryo; Artika, I Made
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol. 36 No. 1 (2008): Jurnal Agronomi Indonesia
Publisher : Indonesia Society of Agronomy (PERAGI) and Department of Agronomy and Horticulture, Faculty of Agriculture, IPB University, Bogor, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (188.991 KB) | DOI: 10.24831/jai.v36i1.1347

Abstract

A number of Trichosanthes species has been reported as a source of bioactive protein associated with defense mechanisms such as chitinase. Chitinase and peroxidase of crude protein extracted from leaves, roots, in vitro calli and shoots of T. tricuspidata had been analysed. Calli were induced on MS medium containing combinations of 1 µM NAA + 1 µM BA (K1), 2 µM NAA + 2 µM BA (K2), 3 µM NAA + 3 µM BA (K3), or 4 µM NAA + 4 µM BA (K4). Shoots were cultured in MS with 1 mg/l of BA, while leaves and roots were harvested from six-month old plants grown on the field. Results of the experiment suggested that K1-K4 medium could be used to induce calli although weight of calli from all medium composition was not significantly different (0.19-0.31 g/explant/4 weeks). Calli from K1 medium had the highest of total crude protein content (3.24 mg/ml). The highest of chitinase activity was found in in vitro shoots (6.51 mM pNP/hour/mg protein) and the highest peroxidase activity was in the plant roots (0.25 ∆ 420/minute/mg protein). Key words: in vitro calli, shoots, crude protein, chitinase and peroxidase activities
Pengaruh Jadwal Irigasi Terhadap Pemakaian Air Konsumtif dan Produksi Nilam (Pogostemon cablin (Blanco) Benth) Sulistyono, Eko; Yanuar, Sandi
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol. 36 No. 1 (2008): Jurnal Agronomi Indonesia
Publisher : Indonesia Society of Agronomy (PERAGI) and Department of Agronomy and Horticulture, Faculty of Agriculture, IPB University, Bogor, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (51.57 KB) | DOI: 10.24831/jai.v36i1.1356

Abstract

The objective of this research was to study the effect of irrigation schedule on consumptive water use and yield of patchouli.  The irrigation schedule treatment was combination between irrigation level and growth phase.  Irrigation levels included irrigation until field capacity were applied every day (100% Available Water/AW1), 3 days (100% AW3), 6 days (100% AW6), 9 days (100% AW9), irrigation until 75% of available water every day (75% AW1), 50% of available water every day (50% AW1) and 25% of  available water every day (25% AW1).  The growth phase was described into whole growth phase, 2 weeks before harvest and 4 weeks before harvest. Results showed that consumptive water-use ranged from 129.18 cm/4 months to 47.58 cm/4 months that was equivalent to 63379 l water in pot with 25 cm diameter (100% AW3 applied at 4 weeks before harvest) to 23344 l water in pot with 25 cm diameter (25% AW1 applied during whole growth phase), respectively.  High water use efficiency was yielded by irrigation level of 50% AW1 or 100% AW6.  High productivity was reached by irrigation level of 50% AW1 or 100% AW3.   Key words:  Irrigation schedule, water use efficiency, available water, Pogostemon  cablin

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