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 870 Documents
Pengaruh Pemangkasan Batang dan Cabang Primer terhadap Laju Fotosintesis dan Produksi Jarak Pagar (Jatropha curcas L.) Hariyadi, ,; Purwoko, Bambang Sapta; Raden, Ince
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol 39, No 3 (2011): Jurnal Agronomi Indonesia
Publisher : Bogor Agricultural University

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Abstract

This research was aimed to study the effect of stem and primary branch prunning on photosynthetic rate and production of physic nut. The experiment was conducted in IPB experimental station in Cikabayan, Darmaga, Bogor, from February 2007 until May 2008. A randomized block design with one factor was used in the experiment.  The treatments were combination between stem pruning with various height from the soil surface and pruning of primary branches with various number of branch remained. Stem pruning on 40 cm above the soil surface with no branch pruning resulted in the highest photosynthetic rate (8.10 µmol CO2 m-2 s-1), while stem pruning on 20 cm above the soil surface with 2 primary branches remained resulted in the lowest photosynthetic rate (4.71 µmol CO2 m-2 s-1).  Stem pruning on 40 cm above the soil surface without branch pruning produced the highest yield components, i.e., capsul number (207.3 capsul plant-1), seed number (506 seeds plant-1) and  seed dry weight (323.81 g plant-1).   Keywords: photosynthetic rate, production, stem prunning
Pengaruh Media Induksi terhadap Multiplikasi Tu nas dan Pertumbuhan Planlet Pisang Rajabulu (AAB) dan Pisang Ta nduk (AAB) pada Berbagai Media Multiplikasi Kasutjianingati, ,; Poerwanto, Roedhy; Widodo, ,; Khumaida, Nurul; Efendi, Darda
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol 39, No 3 (2011): Jurnal Agronomi Indonesia
Publisher : Bogor Agricultural University

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Abstract

 The aim of this research was to study the effects of explant from various induction media on multiplication and growth of cv Rajabulu  (AAB) and Tanduk (AAB) plantain.  This research was arranged in factorial complete randomized design with two factors. The first factor was two kinds of explant which came from induction media I1 (MS + BA 2 mg L-1 + IAA 3 mg L-1), and from induction media I2 (MS + BA 2 mg L-1 + IAA 3 mg L-1 + TDZ 0.09 mg L-1); the second factor was 4 kinds of multiplication media, i.e. MS0 (control/without PGR), MS + BA 0.20 mg L-1 + IAA 0.01 mg L-1 (M1), MS + BA 1 mg L-1 + IAA 0.25 mg L-1 (M2), MS + BA 2 mg L-1 + IAA 0.5 mg L-1 (M3).  The experiment results were the use of TDZ in the induction medium reduced the use of high cytokinin in the multiplication level. The use of Rajabulu explant that came from media I2 produced more shoots (4.3 shoots per explan) compared to explant from media I1 (3.2 shoots per explan). The use of multiplication media M3 and M2 produced the highest shoot number. The best shoot morphogenesis produced when the shoots after subculture in media with PGR (M3 or M2) to media MS0 (big shoot 3.1 and medium shoot 3.5). Tanduk plantain’s shoot was  responsive to cytokinin. The best treatment is I1-M3 with the highest number of shoots and the highest percentage of big and medium shoot is (33%) compared  to  other  treatments  (
Pengaruh Aplikasi Limbah Cair Pabrik Kelapa Sawit terhadap Hasil Kedelai dan Perubahan Sifat Kimia Ta nah Ultisol Ermadani, ,; Muzar, Ali
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol 39, No 3 (2011): Jurnal Agronomi Indonesia
Publisher : Bogor Agricultural University

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Abstract

 The aim of this research was to evaluate the effect of palm oil mill effluent (POME) and its residue on yield of soybean (Glycine max L.) and soil chemical properties.  Field experiment was done on Ultisol soil in Brasau Village, Tungkal Ulu, Tanjung Jabung Barat District from March to November 2009. In the experiment, soybean was planted twice. At first planting, the treatments were without POME as control with application of  50 kg urea ha-1, 150 kg SP-36 ha-1, 100 kg KCl ha-1, 5 ton  manure ha-1 and 2 ton dolomite ha-1, and POME application consisting of 50,000 L ha-1, 100,000 L ha-1, 150,000 L ha-1,  50,000  L  ha-1 + 150  kg SP-36 ha-1, 100,000 L ha-1 + 150 kg SP-36 ha-1, 150,000 L ha-1 + 150 kg SP-36 ha-1. Treatments were replicated four times and arranged in a randomized block design.  At second planting, plots were treated with half of first planting doses of POME. The results showed that the content of N, P, and K of plant tissue and dry weight of soybean seed were increased with increasing dose of POME. The highest yield of soybean at first planting was 2.15 ton ha-1, and achieved with the application of 150,000 L POME ha-1 + 150 kg SP-36 ha-1 , while at second planting the highest dry weight of soybean seed was 2.01 ton ha-1 by residue of 150,000 L POME ha-1 and 150 kg SP-36 ha-1+ application of 75,000 L POME ha-1. Moreover, improvement of soil chemical properties were showed by increasing organic C, cation exchange capacity,  total N, total P, available P, and exchangeable K and decreasing exchangeable Al.   Keywords: POME, residue, Ultisol, Glycine max (L)
Nitrogen and Potassium Applications on the Growth of Amorphophallus muelleri Blume Santosa, Edi; Setiasih, Ika; Mine, Yoko; Sugiyama, Nobuo
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol 39, No 2 (2011): Jurnal Agronomi Indonesia
Publisher : Bogor Agricultural University

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Abstract

Productivity of Amorphophallus muelleri is considered low. Thus, pot experiment was conducted at the Cikabayan Experimental Farm, Bogor Indonesia during rainy season November 2007 to July 2008, in order to determine the optimum fertilizer dose for A. muelleri under 50% shading net. Treatments consisted of four doses of nitrogen (0, 50, 100 and 150 kg ha-1 N) and three doses of potassium (0, 50 and 100 kg ha-1 K2O). The results showed that application of N and K fertilizers significantly increased vegetative growth, i.e., number of leaves, number of leaflets and second leaf size, but did not affect harvesting time. Fresh weight and dry matter content of daughter corm were significantly affected by N and K applications. Combination of 50 kg ha-1 N and 100 kg ha-1 K2O resulted in higher corm weight than other treatments. It is evident that the application of nitrogen and potassium is important in A. muelleri.   Keywords: disease infection, iles-iles, Indonesian konjac, nitrogen, potassium
Mekanisme Toleransi Aluminium pada Rumput Pakan Setaria splendida Karti, Panca Dewi Manu Hara
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol 39, No 2 (2011): Jurnal Agronomi Indonesia
Publisher : Bogor Agricultural University

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Abstract

Plant tolerance mechanism to aluminum (Al) toxicity can be studied by comparing the Al-tolerant and Al-sensitive species. Setaria splendida is an Al tolerant forage, while Chloris gayana is a Al sensitive one. This research was aimed to reveal the main Al-tolerant mechanism in S. splendida. The first experiment was arranged in completely randomized design with two factors and two replications to study the organic acid and Al accumulation in the S. splendida and C. gayana. The first factor  was Al concentration (0 and 2 mM Al), while the second factor was Al tolerant (S. splendida) and Al sensitive (C. gayana) species. The second experiment was arranged in completely randomized design with two factors and three replications to study the effect of Al stress on plant growth. The first factor was Al tolerant (S. splendida) and Al sensitive (C. gayana) species, while the second factor was four levels of Al concentration in the growth medium (28.19, 27.37, 13.74, and 0.13 me Al3+). The results showed that the Al accumulation in the root tissue of S. splendida was similar to C. gayana. Although S. splendida accumulated higher Al in the shoots in comparison to C. gayana, they were more tolerant to Al. S. splendida tolerated Al-toxicity by secreting oxalic acids and citric acid from roots to the external solution, and by accumulating oxalic acid and malic acid in their roots and shoots.   Keywords: aluminum, Chloris gayana, organic acid, Setaria splendida, tolerance.  
Evaluasi Daya Gabung dan Heterosis Lima Galur Jagung Manis (Zea mays var. saccharata) Hasil Persilangan Dialel Iriany, R. Neni; Sujiprihati, Sriani; Syukur, Muhamad; Koswar, Jajah; Yunus, Muhamad
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol 39, No 2 (2011): Jurnal Agronomi Indonesia
Publisher : Bogor Agricultural University

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Abstract

  The objective of this research was to estimate general combining ability (GCA), specific combining ability (SCA), and heterosis of five sweet corn inbreds in order to be selected to develop hybrid varieties. Five inbred lines as parent were Mr12/SC/BC4-6-1B-1, Mr14/SC/BC4-6-1B-1, Mr4/SC/BC4-2-1B-1, Mr11/SC/BC4-2-1B-1, and Mr12/SC/BC3-3-1B-1. The experiment was conducted from April to June 2010 using a Randomized Complete Block Design with two replications at Indonesian Cereal Research Institute (ICERI) experimental station, Maros, South Sulawesi. Analyses of GCA and SCA were based on the Griffing’s fixed model of Diallel Design Method I. Heterosis values were predicted based on the average values of their parents whereas heterobeltiosis were predicted based on the average values of the highest parents. Cross B x D (Mr14/SC/BC4-6-1B-1 x  Mr11/SC/BC4-2-1B-1) had  the highest SCA for yield 990.67. Cross A x B (Mr12/SC/BC4-6-1B-1 x Mr14/SC/BC4-6-1B-1) had the highest SCA for ear diameter 0.36. Cross A x D (Mr12/SC/BC4-6-1B-1 x Mr11/SC/BC4-2-1B-1) had the highest heterosis and heterobeltiosis for yield, while Cross A x D (Mr12/SC/BC4-6-1B-1 x Mr11/SC/BC4-2-1B-1) had the highest heterosis and heterobeltiosis for ear  length. Cross A x B (Mr12/SC/BC4-6-1B-1 x Mr14/SC/BC4-6-1B-1) and E x A (Mr12/SC/BC3-3-1B-1 xMr12/SC/BC4-6-1B-1) had the highest heterosis and heterobeltiosis for ear diameter.   Keywords: combining ability, diallel crossing, heterosis, sweet corn 
Perubahan Karakter Agronomi Aksesi Plasma Nutfah Kedelai di Lingkungan Ternaungi Susanto, Gatut Wahyu Anggoro; Sundari, Titik
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol 39, No 1 (2011): Jurnal Agronomi Indonesia
Publisher : Bogor Agricultural University

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Abstract

Excessive shading during plant growth is one of the factors that might decrease the productivity of crops. The aim of this study was to determine agronomic characters of soybean germplasms grown under shaded environment. The research was carried out at Kendalpayak experimental station (grey Alluvial soil, 450 m above the sea level with C3 climate type) during dry season in Malang, from February to April 2006. The experimental design used was Randomized Complete Block Design with three replications. The genetic material observed were 120 accessions of Balitkabi’s soybean germplasm; the treatments were without shading and 50% shading using shading net. The results showed that 50% shading decreased plant age to harvest, increased plant height, and reduced the number of pods and seed weight compared to those in no shading environment. Based on Stress Tolerancy Index (STI) analysis on the seed weight per plant, fi  ve accessions i.e. MLGG 0845, MLGG 3335, MLGG 0010, MLGG 0771, and Wilis demonstrated  high tolerance on 50% shade.   Keywords : shading environment, soybean, yield, yield component 
Character, Xanthone Content and Antioxidant Properties of Mangosteen Fruit’s Hull (Garcinia mangostana L.) at Several Fruit Growth Stadia Kurniawati, Ani; Poerwanto, Roedhy; Sobir, ,; Effendi, Darda; Cahyana, Herry
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol 39, No 3 (2011): Jurnal Agronomi Indonesia
Publisher : Bogor Agricultural University

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Abstract

The objective of this study was to evaluate the characteristics of mangosteen fruit’s hull, xanthone content, and antioxidant potential on various stadia of mangosteen fruit development. The experiment  was conducted in September 2006 until July  2008 using randomized complete block design, with three replications at maturation stage i.e. 1, 2, 3, and 4 months after anthesis. The parameters being observed were fruit’s hull characters, xanthone content, and antioxidant capacity.  The results of this study showed that fruit diameter and fruit weight increased until three months after anthesis and then did not change significantly once they entered the process of maturity. Thickness of fruit’s hull differed significantly among maturation stage. The thickness of fruit hull was observed at two months and the highest weight was at three months after anthesis. Xanthone content of mangosteen fruit’s hull at a month up to four months after anthesis did not differ significantly however capacity of antioxidant differed significantly among fruit ages, the IC50 values increased with the increase of fruit maturation.   Keywords: Antioxidant, fruit growth, fruit’s hull, mangosteen, xanthone
Pembungaan Jarak Pagar (Jatropha curcas L.) beberapa Ekotipe Nusa Te nggara Barat Santoso, Bambang Budi; Susanto, Slamet; Purwoko, Bambang Sapta
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol 39, No 3 (2011): Jurnal Agronomi Indonesia
Publisher : Bogor Agricultural University

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Abstract

The flowering biology of physic nut (Jatropha curcas L.) has been observed in dry land (sandy entisol soil type) of Amor-Amor, North Lombok, West Nusa Tenggara. Exploration was conducted in several areas where high population of physic nut grown as fence plant was found. Quantitative, descriptive, and observation data were collected for each accession during two-year growth period. Randomized block design was used in this research with three replications from November 2006 until November 2008. Treatments consisted of five ecotypes, i.e. West Lombok, Central Lombok, East Lombok, Sumbawa, and Bima. The results showed that flowering of physic nut West Nusa Tenggara ecotypes was produced continuously during a year, while the peak number of flower was only twice e.g. at the early (November-February) and at the end (April–May) of rainy season. Duration of the flowering process took around 3 days for female flower, around 2 days for male flower, and 7-10 days for total flower per inflorescence. Higher genetic potential for female flower formation was found on West Lombok, Sumbawa, and Bima ecotype. This result should be useful information for breeding programme of physic nut. However, since physic nut is a perennial plant, further study is needed especially on the technology to control flowering.   Keywords: dry season, flowering, fruiting, rainy season,  
Potensi Cendawan Endofit sebagai Agens Pengendali Hayati Phytophthora palmivora (Butl.) Butl. Penyebab Busuk Buah Kakao Tondok, Efi Toding; Sinaga, Meity Suradji; Widodo, ,; Suhartono, Maggy Thenawidjaja
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol 40, No 2 (2012): JURNAL AGONOMI INDONESIA
Publisher : Bogor Agricultural University

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Abstract

Black pod disease (BPD) of cacao caused by Phytophthora palmivora(Butl.) is one of the major diseases on cacao plantation worldwide. Endophytic fungi (EF), fungi that live asymptomatically inside healthy plants, were examined to study their potentials as biocontrol agent of the disease. Six of EF selected from 37 species (from 2843 isolates), isolated from healthy pods of cacao from Marena in Central Sulawesi were tested for their abilities to control BPD. Pods on living trees in the field were sprayed with each EF propagules. The inoculated pods were harvested two weeks later and subsequently inoculated with P. palmivora. Scoring of disease development was performed and quantified as area under disease progress curve (AUDPC). Latent period, infection rate and effectiveness were also recorded. In vitro growth inhibition of pathogen and induced plant defense mechanisms due to EF were also investigated. Xylariaceaeand Calocybe gambosatreatment generated the highest effectiveness control level, i.e. 38.8% and 33.8% respectively, followed by Resinicium friabileand Aschersoniatreatment, i.e. 17.4% dan 12.7% respectively.  Pestalotiopsisand Fusariumwere not effective to control BPD. There was a strong connection between disease severity of BPD with the latent period of pathogen. Growth inhibition of pathogen and induced resistance of plant were partially responsible for disease suppression by Xylariaceae, C. gambosa, R. friabileand Aschersonia. Keywords: Calocybe gambosa, induced resistance, peroxidases, salicylic acid, Xylariaceae

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