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 23 Documents
Search results for , issue " Vol 40, No 1 (2012): Jurnal Agronomi Indonesia" : 23 Documents clear
Pengaruh Formula Coating terhadap Viabilitas dan Vigor serta Daya Simpan Benih Padi ( Oryza sativa L.) Palupi, Tantri; Ilyas, Satriyas; Machmud, Muhammad; Widajati, Eny
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol 40, No 1 (2012): Jurnal Agronomi Indonesia
Publisher : Bogor Agricultural University

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Abstract

The objectives of this research were to find the most compatible coating formula for rice seeds (Experiment 1), and to evaluate the effect of coating formula on   viability, vigor and   storability of the seeds (Experiment 2). This research was conducted in Laboratory of Seed Science and Technology at IPB, Bogor and Laboratory of Seed Technology at PT East West Seed Indonesia, Purwakarta from December 2010 to February 2011. In Experiment 1, the ten coating materials (formula) were arranged in single factor of Completely  Randomized Design with four replications, i.e. uncoated seed, 3% alginate + 1% talc, 3% alginate + 1% gypsum, 3% alginate + 1% peat, 3% arabic gum + 1% talc, 3% arabic gum + 1% gypsum, 3% arabic gum + 1% peat, 1.5% CMC + 1% talc, 1.5% CMC + 1% gypsum, and 1.5% CMC + 1% peat. Experiment 2 used Split Plot Design with four replications. The main plot was storage periods i.e. 0, 1 and 2 months. The seeds were stored in two storage conditions: ambient and air conditioned room. The subplot was coating formula (same as in Experiment 1). The results of Experiment 1 showed that the most compatible coating material for rice seeds were 1.5% CMC + 1% talc, and 1.5% CMC + 1% gypsum, these formula were able to maintain vigor of the coated seeds. In Experiment 2, coating formula of 1.5% CMC + 1% peat generated higher seed vigor than uncoated seeds after two months storage, 3% gum arabic + 1% gypsum was able to keep   vigor for one month storage in ambient condition. The coating formula of 3%  alginate + 1% peat was  able to keep viability and vigor of the coated seeds for two months in air conditioned room.  Keywords: seed coating material, seed quality, seed storage condition, seed storability
Genetic variations of Amorphophallus variabilisBlume (Araceae) in Java using AFLP Santosa, Edi; Sugiyama, Nobuo; Kawabata, Saneyuki; Hikosaka, Shoko
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol 40, No 1 (2012): Jurnal Agronomi Indonesia
Publisher : Bogor Agricultural University

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Abstract

Amorphophallus variabilisBlume, a member of Araceae, is a native tuber crop in Java, Madura and Kangean Islands, Indonesia. The plant showed high variations in morphology. However, genetic variations at molecular level have not been well studied. Amplified fragment length polymorphism (AFLP) was carried out using 8 primers combination of EcoRI and MseI on 78 accessions collected from 28 sites in Java, Indonesia. Results showed that AFLP markers able to generate polymorphism among accessions. A total of 220 polymorphisms were found. The differences among accessions at the genetic level were high, and 5 clusters were constructed. Grouping was independent of geographical origin, similar to clustering of morphological characteristic of flowers as in the previous report. Accessions from one site composed of one to four different cluster groups, showed that variation in single site was observed. Regarding conservation program of the A. variabilisin natural population, it is reasonable to protect one bigger site rather than many small sites, but it should be recommended to maintain conservation areas in several districts. Further study on population structure should be carried out to explain such variability. Keywords: genetic diversity, iles-iles, molecular marker, morphology, tuber crop
Keragaan Hasil Jarak Pagar (Jatropha curcasL.) pada Berbagai Umur Pemangkasan Santoso, Bambang Budi
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol 40, No 1 (2012): Jurnal Agronomi Indonesia
Publisher : Bogor Agricultural University

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Abstract

Seed and oil production of physic nut (Jatropha curcas) is the function of planting material, growing condition, and also canopy architecture maintenance. The objective of the research was to determine the effect of pruning time on yield of physic nut. An experiment was conducted from November 2007 to November 2010 in North Lombok, West Nusa Tenggara using West Lombok genotype. The experimental design was randomized block design with three replications. There were four treatments i.e. a) without pruning, b) pruning at planting time, c) pruning of 1-year old trees at dormance period (after harvesting), and d) pruning of 2-years old trees at dormancy period (after harvesting). Results showed that development and maintenance of physic nut canopy is one of important agronomic practices to obtain high seed production. The best time for pruning during 3-years production cycle was at the end of harvest of 1-year old trees which could yield more than 4 tonnes seed ha-1. Keywords: canopy architecture, pruning, seed production, seed oil content
Ketahanan Tiga Genotipe Cabai terhadap Infeksi Dua Isolat Chilli Veinal Mottle Potyvirus Opriana, Endang; Hidayat, Sri Hendrastuti; Sujiprihati, Sriani
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol 40, No 1 (2012): Jurnal Agronomi Indonesia
Publisher : Bogor Agricultural University

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Abstract

Many factors influence virus replication and movement in the plant cell, among others are virulence of the virus and resistance of the infected plants. Infection of two ChiVMV isolates on three chilli pepper genotypes were assayed to observe disease development. The study was conducted in Cikabayan screen house and Laboratory of Plant Virology, Bogor Agricultural University from April to September 2008. Three genotypes of chilli pepper with different resistance to ChiVMV were selected for this study, i.e. IPB C521(highly resistant), IPB C17 (resistant), and IPB C99 (highly susceptible). Each of the genotypes was mechanically inoculated separately with virulent isolate (ChiVMV CKB) and mild isolate (ChiVMV BL) of the virus. Disease incidence and incubation period of the virus were observed based on symptom development, whereas virus titer and translocation were detected using dot immunobinding assay (DIBA). Disease incidence caused by infection of ChiVMV CKB and ChiVMV BL reached 100% on genotype IPB C99, but no disease incidence was observed on genotype IPB C521. Incubation period of ChiVMV CKB was relatively shorter (7 to 9 days) than those of ChiVMV BL (9 to 14 days). Positive reaction on DIBA was strongly shown for ChiVMV CKB with a high score of virus titer (5 to 6) and sensitivity up to dilution factor of 1 : 106. This study shows that ChiVMV CKB has the ability to cause more severe infection on chilli pepper than ChiVMV BL. Keywords: dot immunobinding assay, pepper genotype, ChiVMV
Tingkat Produksi Ratun berdasarkan Tinggi Pemotongan Batang Padi Sawah Saat Panen Purwoko, Bambang Sapta; Aswidinnoor, Hajrial; Santosa, Edi
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol 40, No 1 (2012): Jurnal Agronomi Indonesia
Publisher : Bogor Agricultural University

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Abstract

The objectives of the study was to determine the effect of cutting height of main crop on the yield of rice ratoon, and to select genotypes with high productivity on tidal swamp land. The method used was a factorial randomized block design with three replications. The first factor was cutting height of 10 cm, 20 cm and 30 cm from soil surface. The second factor was five genotypes selected from previous study, namely Cimelati, Hipa-5, Rokan, IPB106-7-47-DJ-1 and IPB106-F-8-1. The results showed that combination of genotypes and cutting height affected ratoon yield.  Cutting height of 20 cm increased the number of filled grain in almost all genotypes, increased growth rate of ratoon to 1.5 cm day-1  and increased growth uniformity of ratoon of Cimelati, Hipa-5 and Rokan geontypes, with production 3.0 ton ha-1, 2.8 ton ha-1 and 2.2 ton ha-1, equal with 57.2%, 60.1%, 52.7%, of the main crop respectively.  Cutting height of 10 cm above soil surface showed the best results for IPB106-7-47-DJ-1 and IPB106-F-8-1 genotypes, with the highest yield of ratoon 2.1 ton ha-1 and 1.5 ton ha-1, equal with 45.8% and 35.4%  of the main crop respectively. Keywords: cutting height, ratoon, yield
Pengaruh Pengairan Separuh Daerah Akar terhadap Efisiensi Penggunaan Air dan Produksi Kedelai ( Glycine max L.) pada Musim Kemarau Bahrun, Andi; Hasid, Rachmawati; Erawan, Dedi
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol 40, No 1 (2012): Jurnal Agronomi Indonesia
Publisher : Bogor Agricultural University

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Abstract

A new method of irrigation was designed for increasing water use efficiency (WUE) and yield of field grown soybean during dry season. This experiment consisted of four treatments , namely (1) the whole root zone system was irrigated with 4 L m-2 ; (2) the partial root zone system was irrigated with 4 L m-2; (3) the partial root zone system was irrigated with 3 L m -2 ; and (4) the partial root zone system was irrigated with 2 L m-2 . Partial root zone irrigation treatments were done  by daily watering one side between two plants row while the other side was allowed to dry and irrigation was shifted to the dry side while the wet side was allowed to dry every 7 days irrigation interval, respectively.  The experiment was designed as a randomized complete block design with four replications and a 2.6 m x 2.4 m plot size.  The results showed that the partial root zone irrigation treatment maintained growth, biomass, nodule ,  relative leaf water content, relative leaf chlorophyll content, leaf nitrogen content and yield at the level of fully irrigated treatment and increased leaf ABA content and water use efficiency, but the effect depended on volume of water applied. Partial root zone irrigation with 2 L m-2   and 3 L m-2 irrigation decreased yield by 2.97% and 16.91%, respectively, however, those treatments increased water use efficiency by 29.97% and 23.63%, respectively, compared to those with fully irrigated plots. Keywords: ABA,  irrigation,  soybean, root zone, water use efficiency
In VitroShoot Formation on Sugarcane (Saccharum officinarumL.) Callus as Affected by Benzyladenine Concentrations Hapsoro, Dwi; Febrianie, Astrina Putri
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol 40, No 1 (2012): Jurnal Agronomi Indonesia
Publisher : Bogor Agricultural University

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Abstract

In vitro regeneration of sugarcane (Saccharum officinarumL.) clones can support breeding program of sugarcane. This research was conducted to study the effect of benzyladenine on in vitro shoot formation from sugarcane callus. Leafrolls were cultured for 8 weeks on callus induction medium containing MS salts, 30 g L-1 sucrose, 150 ml L-1 coconut water, 100 mg L-1 myo-inositol, 0.1 mg L-1 thiamine-HCl, 0.5 mg L-1 pyridoxine-HCl, 0.5 mg L-1 nicotinic acid, 2 mg L-1 glycine, and 3 mg L-1 2,4-D. Callus was then subjected to different concentrations of benzyladenine (BA) (0, 0.5, 1, 2, and 2.5 mg L-1) contained in MS media. The experiment showed that after 8 weeks in culture 2 and 2.5 mg L-1 BA led to the highest percentage of shoot formation (100%). The experiment also showed that addition of BA caused an increase in percentage of shoot formation, number of shoot per callus clumps, and average shoot length. In the range of 0-2.5 mg L-1, the higher the concentrations of BA the more shoots and the longer shoots were produced. Highest number of shoots was recorded at BA 2.5 mg L-1 (36.4 shoots per callus clump) and highest average shoot length was obtained at 2 and 2.5 mg L-1 BA, i.e. 2.25 and 2.3 cm respectively. The shoot formation system was then applied to 12 sugarcane genotypes, resulting in statistically different response and producing substantial number of shoots, ranging from 29 to 41.33 shoots per clump. Keywords: In vitro, sugarcane, leafrolls, benzyladenine, shoot formation
Karakter Morfologi dan Kimia Kultivar Pamelo (Citrus maxima(Burm.) Merr.) Berbiji dan Tanpa Biji Rahayu, Arifah; Susanto, Slamet; Purwoko, Bambang Sapta; Dewi, Iswari Saraswati
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol 40, No 1 (2012): Jurnal Agronomi Indonesia
Publisher : Bogor Agricultural University

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The objective of this study was to evaluate morphological and chemical characteristics of seeded and seedless pummel fruit. The study was carried out during April 2009 to July 2010. The pummelo fruits were harvested from the production center of Sumedang, Pati, Kudus, Magetan, Bireun (Aceh) and Pangkep (South Sulawesi). Some of seeded cultivars have spherical and ellipsoid form, while the seedless one shown pyriform shape. The edible portion of the fruits (juice vesicles) mainly affected by peel thickness and fruit shape. The edible portion of seedless cultivars (57.22%) were not sigificantly different with seeded (57.07%) and potentially seedless cultivars (59.35%). Generally fruit taste of seedless cultivars were sweet to sweet-bitter, meanwhile seeded and potentially seedless pummelo cultivars have sour-sweet. Pummelo juice taste was affected by TSS (total soluble solids), TA (titratable acidity), TSS/TA ratio and naringin content. Seedless pummelo cultivars have higher pH, TSS, TSS/TA ratio, vitamin C and naringin, but lower in TA content than seeded and potentially seedless fruit juice. ‘Jawa 1’ and ‘Bali Merah 2’ pummelos can be further developed as seedless superior cultivars. Keywords: fruit shape, edible portion, TSS/TA, naringin, vitamin C
Evaluasi Konsumsi Air Beberapa Genotipe Padi untuk Potensi Efisiensi Penggunaan Air Chozin, Muhammad Ahmad; Sopandie, Didy; Junaedi, Ahmad; Lubis, Iskandar
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol 40, No 1 (2012): Jurnal Agronomi Indonesia
Publisher : Bogor Agricultural University

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Abstract

Water use efficient varieties in rice may have good opportunity in term of economic value and scarcity of water.  This study was conducted to determine water consumption among rice genotypes that conventionally cultivated as low land (IR64, IPB97-F-15, Ciherang, Mentik Wangi, and Rokan hybrid), up land (Jatiluhur, Silugonggo), and amphibian type (Way Apo Buru, that could be planted both as lowland and up land). Rice seedlings at 14 days old were transplanted in a plastic container containing 83 kg of air dried soil, 1 plant per whole and 6 plants per container. The experiment was conducted in a vinyl house, using randomized complete block design with three replications. During rice growth, water table was maintained at 2 cm above soil surface, and water was added and recorded weekly. The results showed that varieties reveal production components and yield were different significantly. Water consumptions among varieties were significantly different, ranged from 15.93 L plant-1  for IR64 to 24.13 L plant-1  for Jatiluhur, or equal with 3,639 to 4,827 m3  ha-1. Jatiluhur was the most efficient variety in using water. This finding may guide us to explore benefit of water use efficient variety as sustainable option in water management of rice cultivation. Keywords: paddy rice, water management, water use efficiency
Keragaman Waktu Tanam Tanaman Padi di Pulau Kalimantan Runtunuwu, Eleonora; Syahbuddin, Haris; Ramadhani, Fadlullah
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol 40, No 1 (2012): Jurnal Agronomi Indonesia
Publisher : Bogor Agricultural University

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Rice planting time varied among farming sites. This research was aimed to study the variation in planting time especially in rainy season in Kalimantan. ‘Planting time’ was deterimined using assumption as the time when 8% of paddy fields in a sub district had been planted. Analysis was done by using mean ten-days of planting area of each sub-district during the period of 2000 to 2009 that was obtained from Statistics Indonesia. The result showed that the farmers in Kalimantan started planting rice during the first and second ten-days of September each year. Peak time of rice planting varied among provinces, i.e., on October II/III (West Kalimantan), January I/II and June II/III (East Kalimantan), and March III/April I (South and Central Kalimantan). Data from this research could be used to calculate planting management at national level. Keywords: paddy crop, planting area, planting time, rain fall

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