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Fatardho Zudri
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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
Optimasi Dosis Pupuk Kalsium dan Magnesium pada Bibit Kelapa Sawit (Elaeis guineensis Jacq.) di Pembibitan Utama Ningsih, Eltis Panca; ,, Sudradjat; ,, Supijatno
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol. 43 No. 1 (2015): 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 (405.181 KB) | DOI: 10.24831/jai.v43i1.9596

Abstract

Oil palm is one of the important plantation crops in the plantation sector. Increased oil palm plantation area causes the need for the availability of oil palm seedlings in large quantities. Good quality oil palm seedlings were obtained through intensive maintenance especially fertilization. Fertilizers needed for the growth of oil palm seedlings include calcium and magnesium fertilizers. The objective of this experiment was to determine the optimum rates of calcium and magnesium fertilizer for oil palm seedling (Elaeis guineensis Jacq.). This experiment was conducted at Cikabayan Experimental Station, IPB Darmaga, Bogor, from December 2011 to November 2012. The experimental design used was factorial randomized block design with three replications. The first factor was Ca fertilizer rates i.e., 0, 5, 10,  and  20 g CaCO3 plant-1. The second factor was Mg fertilizer rates, i.e., 0, 24, 48,  and 96 g MgSO4  plant-1. The results showed that calcium affected stomatal density, whereas magnesium fertilizer affected morphological and physiological variables (stomatal density and chlorophyll content) of oil palm seedling. Based on the plant height and stem diameter, the recommended rate of magnesium fertilizer for 8 months oil palm seedlings in the main nursery was 58 g plant-1. This total rate should be applied at different amount every month from 1-8 month, at 2.0, 2.0, 8.0, 9.3, 8.8, 9.3, 9.4 and 9.3 g MgSO4 plants-1, respectively. The optimum rate of calcium fertilizer was not able to be determined in this research. Keywords: chlorophyll, leaf, morphology, physiology
Penampilan Galur Harapan Mutan Dihaploid Padi Tipe Baru di Sulawesi Selatan Dewi, Iswari Saraswati; Lestari, Endang Gati; ,, Chaerani; Yunita, Rossa
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol. 43 No. 2 (2015): 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 (326.161 KB) | DOI: 10.24831/jai.v43i2.10408

Abstract

ABSTRACTSouth Sulawesi is known as one of national rice production centers. However, average productivity of rice varieties planted in that area (4.43 ton ha-1) is lower than those of rice productivity in Java (5.25 ton ha-1). The aims of this research were to evaluate agronomic characters and adaptation of 7 dihaploid mutant advanced lines of new plant type (DH-NPT) of rice at several locations in South Sulawesi. The research was conducted in 2012 at Maros, Gowa, Barru, and Pangkep. The experiments were conducted in randomized complete block design with 3 replications nested in locations. Treatment consisted of 7 DH-NPT of rice, i.e., BIO-MF115, BIO-MF116, BIO-MF125, BIO-MF130, BIO-MF133, BIO-MF151, BIO-MF153, and control varieties i.e., Fatmawati, Ciherang, and Inpari13. The results indicated that in general the lines had medium height (102.77-110.23 cm), moderate productive tiller (9-16 tiller per hill), moderate days to flower (50%), i.e., 73-76 days after sowing (DAS), earlier days to harvest (103-110 DAS), moderate panicle length (28.35-29.31 cm), large number of grain per panicle (> 250 grains) with moderate panicle fertility (63-70%), moderate 1,000 grain weight, i.e., 26.51-27.75 g, and high yield (7.51-8.09 ton ha-1). Four lines, i.e., BIO-MF116, BIO-MF130, BIO-MF151, and BIO-MF153 were stable and had wide adaptability. Other lines, i.e., BIO-MF125 and BIO-MF133 were sensitive to environmental changes, therefore they were classified as specifically adapted to favorable environment; while BIO-MF115 was not sensitive to environmental changes, and therefore it was adapted to non-favorable environment.Keywords: adaptation, agronomic characters, rice mutant
Peningkatan Toleransi Rendaman Padi Lokal Rawa Lebak dengan Introgresi Gen Sub1 ,, Gusmiatun; Suwignyo, Rujito A.; Hasmeda, Mery; Wijaya, Andi
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol. 43 No. 2 (2015): 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 (326.378 KB) | DOI: 10.24831/jai.v43i2.10409

Abstract

ABSTRACTOne of efforts to increase rice production at swamp area which is frequently flooded is the use of submergence tolerant rice varieties. The objectives of this research was to improve plant tolerance after submergence stress for 14 days in BC1F1 of crosses between local superior varieties and Sub1 gen donor (FR13A). The studies were carried out in two stages: 1) Crossing local superior varieties, i.e., Pegagan (Pgn), Siam (Sm), Payak Selimbuk (Pys), dan Pelita Rampak (Plr) to submergence tolerant variety FR13A; and 2) submergence tolerance evaluation of the progeny. The first study was conducted at green house of Graduate Study Sriwijaya University, Palembang. The second study was carried out at field experiment of Central Research and Development of Agricultural Biotechnology and Genetic Resources in Bogor. All studies were conducted from March 2011 until March 2013. The first study was the introgression of Sub1 gene into local genotypes Payak Selimbuk, Pegagan, Siam and Pelita Rampak from FR13A. The second study was evaluation of BC1F1 plant performance after submergence treatment for 14 days. The results showed that introgression of Sub1 gene into local varieties improved submergence tolerance as indicated by higher percentage of survived plants, lower decrease of plant dry weight, and lower decrease of grain weight per panicle compared to parents.Keywords: Sub1 gene, local swamp rice, submergence tolerant
Peningkatan Hasil Padi di Tanah Sulfat Masam melalui Kombinasi Perlakuan Lindi dan Olah Tanah Ar-Riza, Isdijanto; Alwi, M.; ,, Nurita
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol. 43 No. 2 (2015): 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 (435.96 KB) | DOI: 10.24831/jai.v43i2.10410

Abstract

ABSTRACT Tidal swamp lands containing acid sulphate is easily become idle land, which can be fixed by reducing oxidation process of pyrite (FeS2). The pyrite oxidation causes disturbance on the growth and yield of rice plant. An experiment was conducted by means soil leaching in order to reduce accumulation of pyrites. The research had been conducted in Simpang Jaya village, Barito Kuala District in 2012 using a split plot design with three replications. As the main plot was leaching, and no leaching treatment, while as the subplot was soil tillage, i.e., 1) control, 2) weeds cleared without tillage, 3) soil tillage at a depth of 15 cm, and 4) soil tillage at a depth of 30 cm. The results showed that the leaching treatment combined with tillage at a depth of 15 cm or 30 cm increased the number of rice tillers, shoot dry weight, and number of panicles per hill, and number of seeds per hill, thus the leaching treatment was able to increase rice production.Keywords: acid sulphate, leaching, pyrite, tidal swamp land
Radiosensitivitas dan Keragaman Ubi Kayu (Manihot esculenta Crantz) Hasil Iradiasi Sinar Gamma Maharani, Sadewi; Khumaida, Nurul; Syukur, Muhamad; Ardie, Sintho Wahyuning
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol. 43 No. 2 (2015): 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 (323.061 KB) | DOI: 10.24831/jai.v43i2.10412

Abstract

ABSTRACTHigh genetic variability is one of important determinants in successful breeding of clonally propagated crops such as cassava. Induced mutation, including mutagenesis using gamma irradiation, is one strategy to increase genetic variability. The objective of this research was to obtain information of lethal doses (LD20-LD50) from five cassava genotypes (Jame-jame, Ratim, UJ-5, Malang-4, and Adira-4), to analyze the variability, and to obtain potentially high yielding cassava mutant candidates. Cuttings of several cassava genotypes were irradiated by 0, 15, 30, 45, and 60 Gy gamma rays. The results showed that genotype Malang-4 had the lowest LD20 (7.53 Gy) and LD50 (18.47 Gy), while genotype Jame-jame had the highest LD20 (24.94 Gy) and LD50 (33.24 Gy). The highest phenotype variability was obtained in the cassava population irradiated by 15-30 Gy gamma rays. The highest phenotype variability was also determined by the source of tissue, i.e., cuttings from the middle stem resulted in the highest phenotype variability. This research found 32 high yielding potential candidate mutants.Keywords: gamma rays, LD20, LD50,mutant, mutation
Identifikasi Spesies Cabai Rawit (Capsicum spp.) Berdasarkan Daya Silang dan Karakter Morfologi Undang, U; Syukur, Muhamad; ,, Sobir
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol. 43 No. 2 (2015): 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 (687.223 KB) | DOI: 10.24831/jai.v43i2.10413

Abstract

ABSTRACTThe chili consists of several species, five of which have been cultivated, namely C. annuum, C. chinense, C. frutescens, C. baccatum, and C. pubescens. The classifications of these species are based on: 1) morphological characters, especially floral morphology, 2) crossability between species, and 3) fertile hybrids between species. Species C. baccatum and C. pubescens can be easily identified and distinguished from one another, because there are obvious differences in the two species. However the species C. annuum, C. chinense, and C. frutescens has many common characteristics, so it is difficult to distinguish morphologically. The purpose of this study was to identify capsicum species based on crossability and morphological characters. The crossability experiment was done in housing area TDP 2 Ciampea Bogor from January to December 2013 and the morphological characteristics at Leuwikopo experimental station, IPB. The morphological characters experiment was arranged in randomized complete block design (RCBD) with three replications. Data were collected on successful crosses, seed viability of successful crosses and morphological characters based on descriptor for capsicum IPGRI. The percentage of successful crosses involving IPBC10 and IPBC145 (C. annuum) as female parents and 20 genotypes as male parents ranged between 0-90%; and using IPBC295 (C. frutescens) as female parent was 40%. Genotypes which had successful results equals 40% were alleged as C. frutescens species (IPBC61, IPBC139, IPBC63, IPBC163, IPBC289, IPBC288, IPBC294 and IPBC285). Principal component and of clusters analysis suggests that there are two species groups, i.e. C. annuum and C. frutescens.Keywords: capsicum, cluster analysis, crossing, genotypes, principal component analysis
Radiosensitivitas dan Seleksi Mutan Putatif Jeruk Keprok Garut (Citrus reticulata L.) berdasarkan Penanda Morfologi ,, Karyanti; Purwito, Agus; Husni, Ali
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol. 43 No. 2 (2015): 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 (399.529 KB) | DOI: 10.24831/jai.v43i2.10417

Abstract

ABSTRACTMandarin Citrus cv. garut is a of local citrus variety with several superiority, but not competitive to imported citrus. Quality improvement have been the subject of citrus breeding programme. The objective of this research was to determine lethal dose 50 (LD50) and putative mutans regenerant selected based on morphological markers. Callus was irradiated at doses of 0, 20, 30, 40, 50, 60, 70, 80, 90 and 100 Gy and regenerated through somatic embryogenesis. The result of radiosensitivity showed that lethal dose 50 (LD50) analyzed by Curve Expert 1.4 software was 75.31 Gy. Observation on callus showed variation on morphology and weight of callus. Callus growth was not inhibited at doses 0-50 Gy but at doses 60-100 Gy callus growth was inhibited. Gamma irradiation also affected the formations of somatic embryos. After six weeks on maturation medium, the highest number of embryo somatic was produced from doses of 20 and 100 Gy and following culture on germination medium, the highest number of planlet was produced from doses of 20 and 40 Gy. Based on morphological characters, the selected regenerants had variability of 0-58%.Keywords: gamma irradiation, germination, lethal dosis 50 (LD50), maturation, somatic embryo
Karakterisasi Anggrek Alam secara Morfologi dalam Rangka Pelestarian Plasma Nutfah Hartati, Sri; Darsana, Linayanti
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol. 43 No. 2 (2015): 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 (463.366 KB) | DOI: 10.24831/jai.v43i2.10419

Abstract

ABSTRACTMorphological characters of natural orchids (species) is an important key for successful breeding program of orchids. This study was aimed to determine the morphological diversity and to study the genetic relationship among natural orchids from Java. The characterization was conducted on 12 orchids collected from Central, East and West Java from April to September 2012. Twenty five characters including stem, leaves, flower, pseudobulb, and root type were evaluated and scored based on Guidance of Orchid Characterization. Cluster analysis was done using the NTSYSpc version 2.02i under UPGMA function of SimQual. The study showed that there was a diversity on morphology of stem, pseudo bulb, leaf, flower and root type. Dendrogram based on genetic similarity at 52% clustered the population into two groups. The first group consisted of Paphiopedilum purpurascens, P. javanicum, P. glaucophylum, Coelogyne flexuosa, C. spesiosa, Dendrobium mutabile. Bulbophyllum blumei and B. biflorum. The second group was Coelogyne tomentosa, C. trinervis, D. crumenatum, and B. flavescens LindlKeywords: cluster analysis, dendrogram, diversity, morphology
Keragaman Genetik Kelapa Sawit (Elaeis guineensis Jacq.) Asal Angola Menggunakan Marka SSR Sayekti, Urip; Widyastuti, Utut; Toruan-Mathius, Nurita
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol. 43 No. 2 (2015): 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 (479.461 KB) | DOI: 10.24831/jai.v43i2.10420

Abstract

ABSTRACTEffort to increase productivity and other elite characters in Indonesia oil palm breeding program is facing a problem because of the narrow genetic diversity. To broaden the genetic diversity, germplasm exploration has been done in Angola, Central Africa. The objective of this research was to assess the genetic diversity and population structure of Angola originated oil palm germplasm based on 20 SSR markers. The plant materials used were 27 accessions consisted of 136 palms planted in Riau, Sumatera. The DNA was isolated and amplified using PCR. Phylogeny analysis was constructed using Unrooted Neighbor-Joining by DARwin software 6.0.8. The result showed that polymorphic information content (PIC) value is 0.55 (0.17 to 0.75 for each locus) with 102 total number of alleles. Genetic diversity between individuals was higher compared to the genetic diversity within accessions or regions and between accessions or regions. Phylogenetic analysis of 27 accessions showed that accessions were divided into three main groups. Every group containing individuals originated from 5 spatial distribution regions. Principal coordinates analysis (PCoA) showed that accessions were distributed in one structure. Using more primers and samples to get more representative data is recommended for the following research.Keywords: allele, locus, germplasm, molecular marker, polymorphic
Identification of Gene Related to Hard Bunch Phenotype in Oil Palm (Elaeis guineensis Jacq.) ,, Roberdi; ,, Sobir; Yahya, Sudirman; Toruan-Mathius, Nurita; Liwang, Tony
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol. 43 No. 2 (2015): 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 (514.814 KB) | DOI: 10.24831/jai.v43i2.10421

Abstract

ABSTRACTMolecular genetic analysis of hard bunch phenomenon in oil palm was done in order to elucidate the role of genetic factor underlying hard bunch in oil palm plantation. The aim of this study was to identify the AFLP primer combination that co-segregates with hard bunch phenotype related gene in oil palm. Molecular analysis was done by bulk segregant analysis approach. DNA was isolated from leaves of the normal and hard bunch palm. DNA from ten individual palms from each category were pooled and used as a template. A total of 56 AFLP primer combinations were selected for selection of polymorphic primer, and as a result it was found that 22 AFLP primer combinations (39.28%) were polymorphic. A total of 48 individual of palm DNA containing 24 individual for each group were further genotyped by those 22 polymorphic markers. Of these, one AFLP primer combination (E-ACC/M-CTG) was obtained as a co-segregated marker that distinguished the hard bunch DNA from the normal one. Based on the analysis of the target sequence aligned to the oil palm DNA sequences available in database, we found that our sequence has similarity with Ty-1 copia retrotransposon. This sequence distribute in all 16 linkage group of oil palm genome.Keywords: abnormal fruits, AFLP, oil palm, Ty-1 copia retrotransposon

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