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 35, No 1 (2007): Jurnal Agronomi Indonesia" : 9 Documents clear
Penapisan Galur Haploid Ganda Padi Gogo Hasil Kultur Antera untuk Toleransi terhadap Cekaman Aluminium Bakhtiar, ,; Purwoko, Bambang S.; Trikoesoemaningtyas, ,; Chozin, M. A.
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol 35, No 1 (2007): Jurnal Agronomi Indonesia
Publisher : Bogor Agricultural University

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Abstract

Aluminum (Al) toxicity is one of the most important yield-limiting factors for upland rice grown on acid soils. Since many small farmers may have difficulty in soil liming, the genotypes tolerant to soil acidity and aluminum toxicity should be developed. Anther culture can substantially speed up new variety development through recombination of parental characters in early generations and immediately homozygous lines were upon chromosome doubling. The Doubled haploid (DH) rice lines were screened under both nutrient solution containing either 0 or 45 ppm Al and acid soils containing either low or high-Al saturation. The relative root length (RRL) was determined at 14-day-old stage to characterize genotypes for Al-tolerance in nutrient solution. The relative grain weight (RGW) was determined to characterize genotypes for Al-tolerance in soils conditions. The results of this study indicated that Al reduced root elongation. The differential tolerance for Al among genotypes was found to be highly significant for RRL. Of the 120 genotypes tested, 16, 77 and 27 genotypes were found to be Al-tolerance, moderate and sensitive in term of RRL respectively. KRGM4, JTGR13, JTGR17, JTGR18, JTKR1, JTKR5, GRGM4, GRGM6, GRGM9, GRGM14, GRGM25, GRJT11 and SGJT27 lines were consitently Al-tolerance under both nutrient solution and acid soils. The RRL of doubled haploid upland rice lines in nutrient solutions were strongly correlated with RGW in acid soils.   Key words: Rice, doubled haploid, aluminum tolerance, relative root length, relative grain weight
Pengaruh Sarcotesta dan Kadar Air Benih terhadap Kandungan Total Fenol dan Daya Simpan Benih Pepaya (Carica papaya L.) Sari, Maryati; Suhartanto, M. R.; Murniati, Endang
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol 35, No 1 (2007): Jurnal Agronomi Indonesia
Publisher : Bogor Agricultural University

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Abstract

There are phenolic compounds in sarcotesta of papaya seed which can act either as inhibitor or as antioxidant.  The objective of this experiment was to study the effect of sarcotesta and seed moisture content on total phenolic content and seed longevity of papaya seed.  The experiment was conducted in November 2004 - May 2005, at Bogor Agicultural University, by using papaya seed (IPB-1) harvested from Center for Tropical Fruit Studies orchard in Bogor. In this study, seeds were dried in the absence and presence of sarcotesta until 11-12% and 6-7% moisture content (mc).  After drying, seeds were packed in sealed plastic bag and stored in ambient room until 0, 3, 6, 9, 12 and 15 weeks. Seed viability and total phenolic compound were evaluated every 3 weeks.  Total phenolic content of seed with sarcotesta was higher (> 327mg/100g dry weight) than the seed without sarcotesta (
Karakteristik Kimia Lahan Gambut Dangkal dan Potensinya untuk Pertanaman Cabai dan Tomat Alwi, Muhammad; Hairani, Anna
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol 35, No 1 (2007): Jurnal Agronomi Indonesia
Publisher : Bogor Agricultural University

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Abstract

Experiment was conducted on shallow peat with depth (50 - 75 cm) and C/D flooding type at Purwodadi village, Maliku District, Pulang Pisau Regency, Central Kalimantan in wet season 2003.  Ten samples were taken from areal of 2 ha for studying characteristics of shallow peat.  Nutrient absorption of crops and soil nutrient after harvesting  were also analyzed.  This experiment used split plot design with three replications.  As a main plot was input application (M1) : manure (5.000 kg/ha), lime (2.000 kg/ha), urea (150 kg/ha), SP36 (312.5 kg/ha) and KCl (200 kg/ha) for tomato and SP36 (187.5 kg/ha) and KCl (125 kg/ha) for red pepper and without application (M0). Five varities of red pepper (Tombak 1, Tanjung 1, Tanjung 2, Prabu and Hot Chilli) and, five varities of tomato (Oval, Ratna, Mirah, Berlian and Permata) were as subplots. The results showed that soil chemical characteristics were : peat depth 50 - 75 cm, phyrite depth 75 - 100 cm, soil pH 3.5 - 4.0, C-organic content 12 - 24 %; range of nutrient availability : N (0.4 - 0.6 %), P (30 - 50 ppm P), K (0.1 - 0.3 me/100 g), Ca (1 - 6 me/100 g), Mg (0 - 1 me/100 g), Fe (20 - 120 ppm Fe) and Al (1 - 7 me/100 g).  Availability of nutrients N, P, K, Ca, and Mg was low, and it could be increased by application of some inputs such as manure, lime, urea, SP36 and KCl.  Low nutrient availability and crop absorption especially K, Ca, and Mg was a main factor that retarded crop growth.  Red  pepper and tomato yields ranged 0.59 - 4.02 and 4.77 - 10.99 t/ha for control treatments and 3.44 - 7.72 and 14.85 - 35.98 t/ha with input application.   Key words : amelioration, yield potency, red pepper, tomato, shallow peat
Uji Daya Hasil Pendahuluan dan Mutu Beras 21 Padi Hibrida Harapan Lestari, Angelita Puji; Aswidinnoor, Hajrial; Suwarno, ,
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol 35, No 1 (2007): Jurnal Agronomi Indonesia
Publisher : Bogor Agricultural University

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Abstract

Preliminary Yield Trials and Grain Quality of 21 Promising Hybrid Rice. Hybrid rice varieties are alternative technology for increasing national rice productivity.  Heterosis effect from the hybrid F1 can increase yield potential 15% more than inbred rice varieties. The objectives of this experiment were to test the yield and rice quality of some hybrid rice varieties, compared with the three check varities i.e. IR64, Memberamo, and Maro. This experiment was conducted at Muara Experimental Farm, Bogor during wet season 2002/2003 (December-May). A Randomized Complete Blocked Design in three replications was used for this experiment. The result shows that the yield of hybrid rice combinations H-27, H-28, H-29, H-30, H-31, H-32, H-35, H-37, H-38, H-39, H-40, H-41, H-42, H-43, H-45, H-47, H-48 had short growth duration and have erect leaf appearance, but most of them had less resistance to pests and diseases caused by bacteria, and low percentage of grain content. The yield of these hybrids except H-27 and H-49 were lower than the check varieties and all of the hybrid rice tested in this experiment were good in terms of cooking quality. H-27, H-30, H-34, H-41, H-45 dan H-49 could be tested in the advance yield trials.   Key words: hybrid rice, preliminary yield, grain quality
Pendugaan Nilai Heterosis dan Daya Gabung Beberapa Komponen Hasil pada Persilangan Dialel Penuh Enam Genotipe Cabai (Capsicum annuum L.) Sujiprihati, Sriani; Yunianti, Rahmi; Syukur, Muhamad; Undang, ,
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol 35, No 1 (2007): Jurnal Agronomi Indonesia
Publisher : Bogor Agricultural University

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Abstract

The objective of this study was to  estimate the  heterosis and heterobeltiosis of thirty chili hybrids, the general combining ability (GCA), and the specific combining ability (SCA) of six chili (Capsicum annuum L.)   inbred lines. The experiment was conducted from October 2005 to March 2006 at IPB Experiment Field, Cikabayan, Darmaga. Randomized Complete Blocked Design was used with three replications.  All characters were significantly different for heterosis, heterobeltiosis, general and specific combining ability. Significant  differences were noted in reciprocal effect for fruit weight, and yield per plant. Hybrid IPB C-2 x IPC C-3 and IPB C-3 x IPB C-1 had positive heterosis and heterobeltiosis values for all variables observed. IPB C-2 showed the highest GCA for yield per plant and fruit length, IPB C-3 and IPB C-7 showed high GCA for yield per plant, fruit length, fruit width, and fruit weight. Crosses having high SCA for all variables observed were IPB C-1 x IPB C-3 and IPB C-2 x IPB C-3. Cross combination of IPB C-2 x IPB C-3 was the best hybrid.   Key words: chili, heterosis, heterobeltiosis, combining ability, full diallel
Effect of Different Nitrogen and Potassium Rates on Agronomic Characters of Aloe indica Hossain, Kazi Liaquat; Wadud, Md. Abdul; Kashem, Md. Abul; Santosa, Edi; Ali, Md. Shajahan
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol 35, No 1 (2007): Jurnal Agronomi Indonesia
Publisher : Bogor Agricultural University

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Abstract

A field study was conducted to investigate the growth of Aloe indica with different rates of nitrogen and potassium fertilizers at the Germplasm Centre, Department of Horticulture, Bangladesh Agricultural University.  Treatments consisted of 0, 200 and 300 kg nitrogen/ha and 0, 100 and 200 kg potassium/ha. The rates of nitrogen and potassium had significant effect on the leaf production of Aloe indica when compared to control. Leaf yield of Aloe indica was highest at application of nitrogen at rate 200 kg/ha and potassium at rate 100 kg/ha. Leaf protein content was 12.71% higher at 200 kg N/ha and 8.47% higher at 300 kg N/ha compared to control. Potassium application at rate of 100 and 200 kg/ha produced 4.86 % and 8.51% higher leaf protein content than the control, respectively. It is recommended to apply nitrogen at rate 200 kg/ha and potassium at rate 100 kg/ha for leaf production of Aloe indica.   Key words: Aloe indica, chemical fertilizers, leaf nitrogen, protein content, potassium content
Evaluasi Aplikasi Biofertilizer EMAS pada Tanaman Jagung di Pelaihari, Kalimantan Selatan Santi, Laksmita Prima; Sumaryono, ,; Goenadi1, Didiek Hadjar
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol 35, No 1 (2007): Jurnal Agronomi Indonesia
Publisher : Bogor Agricultural University

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Abstract

Implementation of national food safety program to increase food production still faces some constraints.  The intensification program has resulted the marginal land to be fully dependent on chemical fertilizers, where leveling-off production has occurred. Low organic matter content as a source of microbial feed and energy decreased the activity of soil microbes.  Efficiency of fertilization on marginally suitable soils might be achieved by the application of biofertilizer.  Enhancing Microbial Activities in the Soils (EMAS) is a biofertilizer consisting of non-symbiotic N-fixing bacteria, phosphate-solubilizing microbes, and aggregate stabilizing microbes. This experiment was initiated to evaluate the effectiveness of EMAS bio-fertilizer in reducing the dosage of conventional fertilizers used in corn at Pelaihari, South Kalimantan.  Based on the current production value and total of cost production, reducing 25, 50 and 75% conventional fertilizer provided the planters with 1.44, 1.13, and 1.12 revenue cost ratio.  Yield of dry grain of corn was higher (+41.8%) by application of 75% standard dosage and 1 gram EMAS biofertilizer/plant (53.3 kg/ha) than by standard dosage of conventional fertilizer.   Key words: bio-fertilizer EMAS, corn, evaluation, pelaihari
Evaluasi Ketahanan Tanaman Padi Haploid Ganda Calon Tetua Padi Hibrida terhadap Wereng Batang Coklat dan Hawar Daun Bakteri Dewi, Iswari S.; Apriana, A.; Sisharmini, A.; Somantri, Ida H.
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol 35, No 1 (2007): Jurnal Agronomi Indonesia
Publisher : Bogor Agricultural University

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Abstract

The susceptibility of introduced hybrid rice to main rice pests and diseases is subject to be improved through the improvement of its parental lines, i.e. restorer and male sterile/cms lines.  From previous experiment, through anther culture of F1 from maintainer or restorer crossed to released varieties we obtained doubled haploid spontaneous plants or pure lines.  The objectives of this research were to evaluate those doubled haploid plants to brown plant hopper (BPH biotype SU) and bacterial leaf blight (BLB) strain IV and VIII. Standard Evaluation System for Rice (SES, IRRI) was used to evaluate their resistance to those pest and disease.  Plant materials used were a) 15 doubled-haploid plants (DH2) potential as cms lines derived from anther culture of F1 IR58025B x Sintanur and IR62829B x Ciherang; and b) 17 doubled-haploid plants (DH2) potential as restorer lines derived from anther culture of F1 IR53942R x Ciherang and BR827-35R x Sintanur.  Bioassay with BPH showed that for plants potential as maintainer lines there were only 3 moderately susceptible lines, while for plants potential as restorer lines there were one resistance line (BioR-Ac-W-HD-15) and one moderately resistance line (BioR-Ac-W-HD-16). The results of bioassay with BLB in lines potential as maintainer were: a).  For BLB strain IV we obtained one moderately resistance line (BioM-Ac-W-HD-4), b) For BLB strain VIII we obtained 5  moderately resistance lines (BioM-Ac-W-HD-5, 6, 7, 11 dan 12).  Furthermore, the results of bioassay with BLB in lines potential as restorer lines were: a)  For BLB strain IV we obtained 2 moderately resistance lines (BioR-Ac-W-HD-15, and 16), b) For BLB strain VIII we obtained 16 moderately resistance lines, i.e. BioR-Ac-W-HD-(1, 2, 3, 4, 5, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, dan 17).  All lines will be evaluated further in the field.   Key words: doubled-haploid, rice, BPH, BLB
Karakterisasi Morfologi Bunga dan Buah Abnormal Kelapa Sawit (Elaeis guineensis Jacq) Hasil Kultur Jaringan Hetharie, Helen; Wattimena, Gustav A.; Thenawidjaya S., Maggy; Aswidinnoor, Hajrial; Toruan-Mathius, Nurita; Ginting, Gale
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol 35, No 1 (2007): Jurnal Agronomi Indonesia
Publisher : Bogor Agricultural University

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Abstract

Tissue culture-derived plants of oil palm (Elaeis guineensis Jacq) can produce abnormal female dan male flowers, especially female, which develop into mantled fruit. This abnormality have caused yield lost up to 40%. The objectives of this research were to study the stages of flower development in which the abnormality started to appear, to characterize the morphology of the abnormal flower and fruit, and to determine the degree of abnormality. Plant materials used in this research were MK152, MK 176, MK 203, MK163, MK104, MK 212 and MK 209 clones obtained from the collection of "Badan Pengkajian dan Penerapan Teknologi (BPPT)" in Ciampea, Bogor. Characterization of abnormality at the flowering stage was conducted  based on morphological performance at several stages of flower development, while the degree of abnormality at fruiting stage was determined based on the condition of carpel, mesocarp and seed. Normal flower and fruit of the same clone were used as the control. The results showed that the abnormality started at primordial stage of flower organ formation. Supplement carpel was found surrounding gynoecium for the abnormal female flower, which was composed of three to six carpels present at  separate whorl of flower. Abnormal male  flower had no additional whorl of  flower, instead stamens were converted into carpel-like structures. In this case, number of carpels structure depends on the degree of abnormality. There were three levels of abnormality, i.e. light abnormality (AbR), heavy abnormality (AbB) and severe abnormality (AbSB). The severe abnormal fruit was seedless, with soft mesocarp (AbSB1) and woody mesocarp (AbSB2).   Key words : oil palm, mantled fruit, supplement carpel, flower whorl, tissue culture

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