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
Radiosensitivitas Pisang cv. Ampyang dan Potensi Penggunaan Iradiasi Gamma untuk Induksi Va rian Indrayant, Reni; Mattjik, Nurhajati Ansori; Setiawan, Asep; Sudarsono, ,
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol 39, No 2 (2011): Jurnal Agronomi Indonesia
Publisher : Bogor Agricultural University

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Abstract

Banana is commonly propagated vegetatively by suckers since most of edible banana are triploid, male sterile and parthenocarpic, use of conventional breeding for banana improvement is difficult.  Mutation induction and in vitro technique are alternative tools for banana improvement. The objectives of this research were (1) to determine radiosensitivity of banana cv. Ampyang against gamma irradiation, and  (2) to evaluate performance of plantlets regenerated from gamma irradiated explants of banana cv. Ampyang.  Explants of in vitro grown shoots were exposed to gamma irradiation at 0, 20, 25, 30, 35, 40, 45, and 50 Gy to determine their radiosensitivity. Growth and development of regenerated plantlets were recorded after 10 months of proliferation and regeneration periods. The CurveExpert ver. 1.4 analysis results indicated that lethal doses of irradiation reducing 20% to 50% of shoot growth (LD20-50) were 51.07 - 64.54 Gy.  All regenerated plantlets from irradiated explants produced less numbers of roots, and some of regenerated plantlets, showed significantly less plantlet fresh weight and height than the control one. Plantlets regenerated from explants irradiated with 25, 40, 50 Gy have longer leaves than the control. The regenerated plantlets from gamma irradiation treatments were successfully transferred into soil and they would be used to evaluate existence of variants among regenerated banana plantlets.   Keywords: induced mutation, gamma irradiation, lethal dose (LD20-50)
Toleransi Beberapa Varietas Padi pada Sawah Gambut Berkorelasi dengan Kandungan Asam Fenolat Haryoko, Widodo; Kasli, ,; Suliansyah, Irfan; Syarif, Auzar; Prasetyo, Teguh Budi
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol 40, No 2 (2012): JURNAL AGONOMI INDONESIA
Publisher : Bogor Agricultural University

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Abstract

One of the causes of the low productivity of rice grown on peat soils was the high levels of of toxic phenolic compounds in the soil. Development of tolerant rice varieties is one of strategies to grow rice on peat soils. The aims of this research were to select rice varieties tolerant to peat soils and to study the correlation between the plant phenolic acid content with plant tolerance to peat soil. This research was conducted at the Seed Farm Centre Lubuk Minturun, Padang from February to July 2009. The research consisted of two experiments i.e. in peat soil and in mineral soil. The experiments used a completely randomized design using 21 varieties of rice as treatments which were replicated four times. The results showed that there were nine rice varieties categorized as tolerant to peat soil. These tolerant varieties showed higher stress tolerance index (STI), demonstrated by a high level of phenolic acids (coumaric, syringic, and ferulic) in the plant tissues. The STI value had positive correlation with the content of plant phenolic acids, thus the level of plant phenolic acids can be used as an indicator to determine tolerant rice varieties in peat soils. Keywords: peat soil, phenolic acids, tolerant rice, STI
Pertumbuhan, Produksi dan Efi siensi Pemanfaatan Lahan dalam Sistem Tu mpangsari Jagung dan Kacang Hijau dengan Interval Penyiraman Berbeda Sabaruddin, Laode; Hasyid, Rachmawati; Muhidin, ,; Anas, Arsy Aysyah
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol 39, No 3 (2011): Jurnal Agronomi Indonesia
Publisher : Bogor Agricultural University

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Abstract

 Water availability is a limiting factor to develop farming systems in the arid region, therefore more attention is given in the effort to increase water use true intercropping system. The research aim was to increase the productivity and land use efficiency. Research was conducted at field station of Agriculture Faculty, Haluoleo University. The experimental was arranged in completely randomized block design with two factors and three replications. The first factor was watering interval, i.e. once every 2, 4 and 6 days. Second factor is planting time of mungbean, i.e. 0, 7, 14, 21 and 28 days after planting (DAP) maize. The result showed that total yield of maize is 5.67 ton ha-1 in intercropping system occurred at delayed planting of mungbean, i.e. at 14 DAP maize, and watering interval every 4 days. Our result showed that intercropping system could improve yield up to 39.68% compared to monoculture planting system of maize and mungbean. Leaf area index, long ear and number of grain per ear of maize have correlation  with yield. Number of pod per hill of mungbean has correlation to weight of 1,000 grain and dry pod yield. Percentage of pod emptiness has negative correlation to  weight of 1,000 grain and dry pods yield.    Keywords: intercropping, LER,  maize, mungbean,  water availability
Pola Peningkatan Hasil Ta naman Jarak Pagar (Jatropha curcas L.) Ekotipe Lombok Barat selama Empat Ta hun Siklus Produksi Santoso, Bambang Budi; Hariyadi, ,; Purwoko, Bambang Sapta
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 aim of this experiment was to evaluate the pattern of yield improvement of Jatropha curcas L. of West Lombok ecotype at dry land of North Lombok, West Nusa Tenggara during four years production cycle.  The experiment was conducted in randomized complete block design (RCBD) using three types of propagules (i.e., stem cutting, seed, and seed followed by pruning after transplanting) and three replications from November 2006 to November 2010. The results showed that yield was increased as plant age increased. Plants cultivated during rainy season had higher yield compared to those cultivated during dry season.  However, the oil content of nuts was slightly higher when harvested in dry season than in rainy season.  Yield was also affected by plant material used.  In the first year, plants propagated by stem cutting had the highest yield.  In the second, third, and fourth year, plants propagated from seed followed by pruning produced the highest nut dry weight. During four years production cycle, yearly yield improvement was about 2-3 times than the previous year and did not follow the geometrical progression based on dichotomy branching pattern of Jatropha.   Keywords: dry land, productivity, pruning, seed oil content, type of propagule  
Protein and Anthocyanin Production of Waterleaf Shoots (Ta linum triangulare (Jacq.) Willd) at Different Levels of Nitrogen+Potassium and Harvest Intervals Susant, Hilda; Aziz, Sandra Arifin; Melati, Maya; Susanto, Slamet
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 experiment was conducted at IPB Experimental Station, Leuwikopo, Dramaga, Bogor, from November 2009 until February 2010 to study the effect of different  nitrogen+potassium rates and harvest intervals on protein and anthocyanin production of waterleaf shoot (Talinum triangulare (Jacq.) Willd). A randomized complete block design was used with three replications of two factors, which were  four N+K  dosages (50 kg urea + 50 kg ha-1 KCl, 50 kg urea + 100 kg ha-1 KCl, 100 kg urea + 50 kg ha-1 KCl, 100 kg urea + 100 kg ha-1 KCl) and three harvest intervals (30, 15, and 10 days).  The results showed that interaction of 100 kg urea + 100 kg ha-1 KCl and 15-day harvest interval produced the highest content (8.29 mg g-1 fresh weight) and production (4.72 g plant-1) of protein.  The interaction of N+K dosages and harvest intervals were not significant in affecting the anthocyanin content.  The highest production of anthocyanin was produced by single treatment of 100 kg urea + 100 kg ha-1 KCl (152.23 µmol plant-1) and 10 days harvest interval (165.47 µmol plant-1), respectively.  Leaf protein levels negatively correlated with anthocyanin content.   Keywords: anthocyanin, fertilizer, harvest interval, protein, Talinum triangulare  
Application of Filter Cake on Growth of Upland Sugarcanes Purwono, ,; Sopandie, Didy; Harjadi, Sri Setyati; Mulyanto, Budi
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol 39, No 2 (2011): Jurnal Agronomi Indonesia
Publisher : Bogor Agricultural University

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Abstract

Recently planting site of sugarcane was shifted from lowland to upland area. Sugar cane cultivation in upland has many constraints, especially limited water supply and low nutrition availability. The objectives of this research were to study the influence of  application of composted filter cake on growth and water use efficiency of upland sugar cane. The research was conducted in Jengkol, Kediri. Treatments consist of three factors: frequency of irrigation (once every 1 week, once every 2 weeks, and once every 3 weeks); sugarcane varieties (PS-862 and  PS-864); and  compost doses (0, 2.5, 5, and 7.5 ton ha-1). Split plot design with three replications was used in each  irrigation treatment, using composted filter cake as main plots and sugarcane varieties as sub plots. The results showed that the highest sugar content was  reached at application of 5 ton ha-1   compost  and the  greatest crystal sugar was reached at 3.09 ton ha-1 compost. Compost application at 5 ton ha-1 on each planted row can reduce  frequency of irrigation from once a week to once every 2 weeks.   Keywords: compost of filter cake, frequency of irrigation, upland sugar cane
Leaf, Anthocyanin, and Protein Production of Ta linum triangulare Jacq. Willd with Various Rates of P Fertilizer Mualim, Leo; Aziz, Arifin
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 effect of P fertilizer rates on growth and production parameters of waterleaf [Talinum triangulare (Jacq.) Willd] were studied over two months (February-April 2010) in Bogor. Treatments of five P-rates (0, 200, 400, 600, and 800 kg SP-18 ha-1) were laid out in a randomized complete block design with three replications. Generally, the effect of P fertilization in waterleaf was mostly prominent at 8th week after planting (WAP). The increase of  P rates increased leaf area, leaf fresh weight, edible part (shoot weight), and protein production; but decreased anthocyanin production. These results suggested that to produce high protein and anthocyanin, waterleaf must be fertilized with 400 kg SP-18 ha-1; and P fertilizer must be applied at least two weeks before planting.   Keywords: inorganic fertilizer, phosphorus, portulacaceae, secondary metabolite  
Pengurangan Pemakaian Pupuk Anorganik dengan Penambahan Bokashi Serasah Tanaman pada Budidaya Ta naman Tomat Pangaribuan, Darwin Habinsaran; Pratiwi, Octa Liestia; Lismawanti, ,
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 the research was to investigate the application of plant compost on the growth and yield of tomatoes. The experiment was conducted in Bandar Lampung from October 2009 until February 2010. The experimental design was completely  randomized block design with 3 replications. The treatments were: control; recommended inorganic fertilizers 135 kg N ha-1, 75 kg P2O5  ha-1, and 110 kg K2O  ha-1; white leadtree (Leucaena glauca) compost + recommended inorganic fertilizer; legume compost + 50% recommended inorganic fertilizer; teak (Tectona grandis) compost + recommended inorganic fertilizer; teak compost + 50% recommended inorganic fertilizer; paddy straw (Oryza sativa) compost + recommended inorganic fertilizer; paddy straw compost + 50% recommended inorganic fertilizer; rattlepod (Crotalaria anagyroides) compost + recommended inorganic fertilizer; rattlepod compost + 50% recommended inorganic fertilizer. Our results showed that rattlepod and paddy straw composts gave similar results in tomato growth and yield, and they were better than other plant composts tested. The application of 50% inorganic fertilizers combined with plant compost had the higher yield as compared to recommended inorganic fertilizer treatment. This implied that the use of plant compost could reduce the use of inorganic fertilizers while maintaining higher yield than using inorganic fertilizers only. The soil chemical properties was improved after application of plant compost.     Keywords: inorganic fertilizer, plant compost, tomatoes  
Application of 1-MCP to Intact To matoes Differing in Maturity Delays Quality Changes in the Stored Slice Pangaribuan, Darwin Habinsaran; Irving, Donald
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol 39, No 2 (2011): Jurnal Agronomi Indonesia
Publisher : Bogor Agricultural University

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Abstract

A study was carried out to determine the effect of  1-MCP applied to intact tomatoes differing in maturity stage on quality of stored tomato slices.  1-MCP (1 mL L-1, 20 °C, 12 h) was applied directly to intact tomatoes from ‘turning’, ‘pink’, and ‘light-red’ stages of maturity. After slicing, slices were stored for up to 10 days at 5 ºC. 1-MCP maintained slice quality during storage following treatment of intact ‘turning’ and ‘pink’ maturity fruit as indicated by higher titratable acidity, higher ascorbic acid concentration, and lower lycopene content.1-MCP treatment did not significantly affect soluble solids and electrolyte leakage.  Slices from ‘light-red’ maturity stage fruit did not respond to 1-MCP.  The results show that application of 1-MCP to intact tomatoes was effective in maintaining tomato slice quality if 1-MCP is applied to fruit at early (‘turning’ and ‘pink’) stages of maturity.   Keywords:  1-methylcyclopropene, soluble solids, acidity, ascorbic acid, lycopene, electrolyte leakage   
Perbanyakan Tunas Mikro pada Beberapa Umur Simpan Umbi dan Pembentukan Umbi Mikro Bawang Merah pada Dua Suhu Ruang Kultur Dinarti, Diny; Purwoko, Bambang Sapta; Purwito, Agus; Susila, Anas Dinurrohman
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol 39, No 2 (2011): Jurnal Agronomi Indonesia
Publisher : Bogor Agricultural University

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Abstract

Shallot bulb generally stored for several month before planted in the field. Since explant age is one of important factors in tissue culture development, storage period of shallot bulb might alter the explant growth in vitro. Shoots of shallot formed in the in vitro culture should form bulbs before can be use as seedling, and temperature may affect micro bulb induction. Two experiments had been conducted to evaluate 1) the effect of storage period in the field on the growth of shallot explant in vitro and 2) the effect of culture room temperature in microbulbs induction of shallot. In the first experiment, shallot bulb had been stored for 1, 2, 3 and 4 months before used as explants. Storage period significantly influenced the explant growth in vitro. Bulb with 2 months storage gave the best performance on number of micro shoot, number of leaves and roots, and less of vitrification. Micro shoots on three weeks after planting (WAP) was feasible to use as propagule for shallot micro bulb induction. In the second experiment, shoots from propagation medium was transplanted to bulb induction medium and  grown in growth chamber with different temperatures (day/night) 20/17 oC and 30/27 oC, respectively.  Micro bulb induction was influenced by temperature. Lower temperature showed good results for number of leaves, length of leaves, number of roots, and length of roots. However, temperature of 30/27 oC gave the best result on number of micro bulb, diameter of bulb and bulb width:bulb disk diameter ratio.   Keywords: Allium, explants age, micro bulb,  temperature, 2ip

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