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).
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Search results for , issue " Vol 39, No 1 (2011): Jurnal Agronomi Indonesia" : 24 Documents clear
Pollen Viability and Pollen Tube Growth of IPB’s Papaya Suketi, Ketty; Tuharea, Cenra Intan Hartuti; Widodo, Winarso Dradjad; Poerwanto, Roedhy
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol 39, No 1 (2011): Jurnal Agronomi Indonesia
Publisher : Bogor Agricultural University

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Abstract

The purpose of the research  was to examine the pollen germination process and growth rate of pollen tubes of papaya. Pollen tube growth of nine genotypes of papaya (IPB 1, IPB 2, IPB 3, IPB 4,  IPB 5, IPB 7, IPB 8,  IPB  9,  and  IPB 10) was investigated in this experiment in order to study their pollen germination rate and pollen viability. The fresh pollen were excised from the flowers of papaya grown at Tajur Field Station of  Research Center for Tropical Fruit, Bogor Agricultural University (IPB), Bogor. The extracted pollen was cultured aseptically on the Brewbaker and Kwack medium (pH 7.3) at ambient  temperature of 26-28 °C. Pollen germination and pollen tube growth was observed under optical microscope with 100 and 400 magnification. Papaya pollen viability was not associated with size-based categories of papaya fruits. IPB 4 had the longest pollen tube at first 30 minutes after germination  (115.5 µm), whereas IPB 10 had the shortest (99.5 µm).  The distance  from  stigma  to   ovary  in  hermaphrodite  flowers  varies with genotypes, ranging from 7.38 to 13.44 mm.  Average length of pollen tube within four hours of germination for small papaya fruit category (IPB 1, IPB 3, and IPB 4) was 1,030.67 ± 19.14 #m, while the distance between stigma and ovary was short (14.85 ± 2.19 mm) so that the expected of  fertilization process occurred sooner.  At the end of the experiment (four hours after germination), IPB 1 genotype  had the longest pollen tube (1,052 µm) while IPB 9 genotype (913 µm) had the shortest  pollen tube.  Genotype with the highest percentage of germination  at the end experiment was IPB 2 (65.65%), whereas the lowest was IPB 7 (42.56%).   Keywords: Carica papaya, germination rate, pollen germination
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 
Pertumbuhan Kecambah Aren (Arenga pinnata (Wurmb.) Merr) dari Pohon Induk Berbeda Ketinggian dengan Pemberian Pupuk Organik Saleh, Muhammad Salim; Fathurrahman, ,
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol 39, No 1 (2011): Jurnal Agronomi Indonesia
Publisher : Bogor Agricultural University

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Abstract

The aim of this research  was to study the growth of sugar palm seedling from different altitudes of mother plant, growing in different organic media.  The experiment was conducted at Seed Technology Laboratory and Academic Garden of Agronomy Department, Faculty of Agriculture, Tadulako University, from February to July 2008. The experimental design was factorial randomized  block design with two factors.  The first factor was seed from different altitudes of mother plant sources, i.e, :  from Parigi  (1,000 m asl).  The second factor was types of organic fertilizers added on soil taken from sugar palm land. The organic fertilizer treatments were without fertilizer, manure, compost of rice husk, and sugar palm residue. Each experimental unit was comprised of 25 seeds with three replications. The results showed that seeds from Parigi grown in media with compost of rice husk gave a better growth than other treatments. Germination percentage at this treatment was 88.01% and dry weight of seedlings was 0.41 g in average, eligible to be transferred to main nursery.    Keywords: altitude, mother plant, organic media, seedling, sugar palm
Pengaruh Panjang Hari, Asam Indol Asetat, dan Fosfor terhadap Tanaman Kedelai dan Kualitas Benih dalam Penyimpanan Hartawan, Rudi; Djafar, Zainal Ridho; Negara, Zaidan Panji; Hasmeda, Mery; Zulkarnain, ,
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol 39, No 1 (2011): Jurnal Agronomi Indonesia
Publisher : Bogor Agricultural University

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Abstract

The objective of this study was to investigate the effect of photoperiod, indole acetic acid (IAA), and phosphorus on soybean plant growth and seed quality during storage. The trial was carried out at Sebapo Experimental Station, Jambi, Center for Post Harvest Research and Development, The Ministry of Agriculture and Center for Forest Research and Development, The Ministry of Forestry, Bogor from November 2009 until June 2010. Split-split plot design was used consisted of three factors, i.e. photoperiods (12 and 14 hours 54 minutes) as the main plot, concentrations of IAA (0, 75, and 150 ppm) as sub plot, and dosages of phosphorus (0, 60, and 120 kg P2O5  ha-1)  as  sub  sub  plot.  The  result  showed  that  photoperiod, IAA,  and  phosphorus  application  had signifi  cantly improved production and seed quality. The path analysis showed that the weight of 1,000 seeds affected other variables. The seed protein content has the largest path coeffi  cient compared to other variables. The treatment of mother plant with 14 hours 54 minutes photoperiod combined with IAA of 150 ppm and P2O5 of 120 kg ha-1 resulted in the highest seed quality during 90 days of storage  in room temperature.   Keywords: food crops, seed physiology, seed technology
Repellent Plants and Seed Treatments for Organic Vegetable Soybean Production Aziz, Sandra Arifin; Pardiyanto, Agus Yudhi; Sinaga, Meity Suradji
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol 39, No 1 (2011): Jurnal Agronomi Indonesia
Publisher : Bogor Agricultural University

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Abstract

The research was conducted to study the effect of repellent plants and seed treatments on growth and  production of organically grown vegetable soybean.  The experiment was carried out at Cikarawang Research Station, Bogor, from September 2005 to May 2006. The organic experiment was arranged in a split plot design using four species of companion plants as repellent plants, i.e. Tagetes  erecta, Cymbopogon nardus, Ocimum gratissimum,  Tephrosia  vogelii, and without repellent plants as the main plot, and seed treatments i.e. galangal oil, Pseudomonas  fl  uorescens, and without seed treatments as sub plot using 3 replications and conventional system (using pesticides) as control.  Plants grown under conventional system had a greater fresh pod weight (6.7 kg. 10 m-2) than those in organic system (4.80-5.79 kg. 10 m-2), a lower insect infestation (19.17, 22.92 and 32.50%) and disease prevalence (9.17, 11.42 and 14.42%), at 6, 7 and 8 Week After Planting (WAP) respectively, than the organic system.  In the organic experiment, the use of O. gratissimum as repellent plants resulted in a signifi  cantly lowest empty pod per plant (0.79 g). T. erecta and O. gratissimum without seed treatment, P. fluorescens without repellent plants, and T.  vogelii  with galangal oil seed treatment has the signifi  cant lowest insect infestation at 6 WAP of 20.67, 23.00, 26.67 and 27.33%, respectively.  An organic system using repellent plants had a significantly lower insect infestation at 8 WAP (35.67-40.33%, O. gratissimum being the lowest) than without repellent plants (50.56%). Seed treatments on organic system had the lower disease prevalence at 8 WAP (33.87% on P. fluorescens and 35.47% on galangal oil) than without seed treatments (37.73%). Number of root nodules (11.6-16.7 to 7.8) and root nodules dry weight (0.068-0.101 to 0.040 g) of the organic system were greater than the conventional system.  Soybean without repellent plants had a greater number of harvestable plants (137.3), but it was fewer than the conventional system (158.3).    Keywords: disease and pest control, seed treatments, organic vegetable soybean
Response of Soybean Genotypes to Waterlogging Kuswantoro, Heru
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol 39, No 1 (2011): Jurnal Agronomi Indonesia
Publisher : Bogor Agricultural University

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Abstract

National demand on soybean can be full filled by extending production area including marginal lands. Tidal swamp is one of marginal lands which potentially can be cultivated for soybean production with the use of tolerant varieties to waterlogging. So far, there are only two varieties that are tolerant to tidal swamp condition. This research was conducted to study the response of soybean genotypes to waterlogging and to provide gene resources in breeding for tidal tolerant variety. The research was conducted from October 2007 to February 2008 in the glasshouse of Indonesian Legume and Tuber Crops Research Institute (ILETRI), Malang. The experimental design was split-plot with two replications; where the main plot was waterlogging treatment and the sub plot was soybean genotype (17 genotypes of ILETRI collection). The results showed that soybean genotypes had different responses to different water treatments, shown on the number of branches and reproductive nodes, the number of filled and unfilled pods, and yield (dry seeds) per plant. Waterlogging inhibited plant growth of all traits. Under waterlogging, the highest number of reproductive nodes and fi  lled pods, and yield per plant was from MLGG 0537 i.e. 12.25, 19.25, and 3.13 g plant-1, respectively.   Keywords: germplasms, soybean,  waterlogging
Parametric Stability Analysis for Yield of Chili Pepper (Capsicum annuum L.) Syukur, Muhamad; Sujiprihati, Sriani; Yunianti, Rahmi; Kusumah, Darmawan Asta
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol 39, No 1 (2011): Jurnal Agronomi Indonesia
Publisher : Bogor Agricultural University

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Abstract

The objective of this study was to identify the stability of seven hybrid chili pepper genotypes that have been developed at Genetics and Plant Breeding Laboratory, Department of Agronomy and Horticulture IPB. The study used eight yield stability analyses and Additive Main Effect Multiplicative Interaction (AMMI) methods. The design was randomized complete block design with three replications as blocks using the genotypes of IPB CH1, IPB CH2, IPB CH3, IPB CH5, IPB CH25, IPB CH28, IPB CH50, and fi  ve commercial varieties, i.e. Adipati, Biola, Gada, Hot Beauty and Imperial. These genotypes were planted at six different locations at Ciherang, Leuwikopo, Tajur, Subang, Rembang and Boyolali. IPB CH28, IPB CH25, IPB CH1 and IPB CH2  were more stable cultivars than IPB CH3, IPB CH5, IPB CH50, Adipati and Biola, which had 10, 9, 8, and 6 out of all 10 stability statistics used, respectively. IPB CH28 and IPB CH25 being the most stable cultivars. IPB CH3 was the best genotype compared to the checks based on pair wise GxE interaction test. Based on post predictive success, the AMMI2 model was able to explain 85.51% of the interaction-influenced variation. The stable genotypes in six locations were IPB CH1, IPB CH2, IPB CH25, IPB CH28, and IPB CH50. IPB CH3 genotype was locally adapted for Subang.   Keywords: chili pepper, multi location trials, yield stability
Mekanisme Adaptasi Genotipe Baru Kedelai dalam Mendapatkan Hara Fosfor dari Tanah Mineral Masam Bertham, Rr. Yudhy Harini; Nusantara, Abimanyu Dipo
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol 39, No 1 (2011): Jurnal Agronomi Indonesia
Publisher : Bogor Agricultural University

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Abstract

Phosphate deficiency  is one of the main constraints to increase soybean yield in acid mineral soil. An experiment was conducted with an objective to discover scientific base of fertilizer selection based on soybean adaptation mechanism to mitigate P deficiency in acid mineral soils in Bengkulu Province. A factorial experiment was arranged in a randomized complete block design with four replications. The first factor was soybean genotypes, i.e.  Slamet and three new soybean genotypes (NSGs) i.e. 19BE, 25EC and 13ED, and second factor was P fertilization dosages (0 and 400 mg P2O5 kg-1 soil). Soybean was grown in a greenhouse using double pot system. Research results showed that the NSGs had different mechanism in P uptake from soil with high P absorbing capacity compared to Slamet genotype.  NSGs translocated more carbon to root, and decreasing of shoot-root ratio, about 66-70%. NSGs 25EC produce more oxalic and malic acid, and 13ED produce more citric acid to obtain same amount of P absorbed by Slamet variety. Under low P, NSGs developed symbioses with mycorrhizal arbuscular fungus, however, only 19BE which increase microbe population in rhizosfer. Phosphosrus fertilization supressed arbuscular ycorrhizal fungus development (15-100%), alkaline phosphatase activity (20-88%), and microbial C biomass (40-71%) in rhizosphere of new soybean genotypes.   Keywords: acid soil, adaptation mechanism, P acquisition, soybean genotypes
Application of Starter Solution Increased Yields of Chili Pepper (Capsicum annuum L.) Susila, Anas Dinurrohman; Ma, Chin-Hua; Palada, Manuel Celiz
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol 39, No 1 (2011): Jurnal Agronomi Indonesia
Publisher : Bogor Agricultural University

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Abstract

Chili pepper (Capsicum annuum L.)  was grown with polyethylene mulched on Inceptisol soil with low pH (5.5), low organic-C  (1.54%),  very  low total N (0.12%), low K content (0.29 me (100 g)-1), but very high soil P2O5 concentration (19.2 ppm) to evaluate the best crop management practices with starter solution.  Seven starter solution combinations (1 = No Starter Solution + No CM + No SI, 2 = CM + SSVC,  3 = CM + SSG, 4 = SI + SSVC, 5 = SI + SSG,  6 = SI + CM+ SSVC,  and 7 = SI + CM + SSG) were arranged in a randomized completely block design with four replications. Whereas CM = cow manure, SSVC = organic starter solution, SSG = inorganic starter solution, and SI=standard inorganic fertilizer. The results showed that inorganic, as well as organic, starter solution increased chili pepper growth and yield in less fertile soil. The highest marketable yield was obtained with application of standard inorganic (SI) + cow manure (CM) + inorganic starter solution (SSG).  Inorganic starter solution application resulted in a better plant growth than organic starter solution, being evident at 1 week until 7 weeks after transplanting. However,  inorganic starter solution did not significantly increase total marketable yields. Application of cow manure, standard inorganic fertilizer, or addition of organic starter solution reduced total unmarketable yield, improved fruit qualities and increased marketable yield.   Keywords: cow manure,  crop management,  fertilization, liquid fertilizer, vermi-composting
Rekomendasi Pemupukan Kalium untuk Tanaman Nenas Berdasarkan Status Hara Tanah Safuan, La Ode; Poerwanto, Roedhy; Susila, Anas Dinurrohman; Sobir, ,
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol 39, No 1 (2011): Jurnal Agronomi Indonesia
Publisher : Bogor Agricultural University

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Abstract

Potassium (K) is required in a large amount for plant growth and production of most fruit crops, including pineapple. However, excess application may decrease its growth and production. Therefore, fertilizer application must be site specific, based on soil nutrient status and plant requirements. The aims of the research were (1) to determine the soil K nutritional status of pineapple and (2) to determine the optimum dosage of  K fertilization for pineapple grown in Sawah Baru, Darmaga, Bogor.  The research was conducted using split plot randomized block design with five soil K status as main plots i.e. 0, 70, 140, 210, and 280 kg K2O ha-1 representing status levels of very low, low, moderate, high, and very high, respectively. The sub plot was dosage of  K fertilizer i.e. 0, 200, 400, 600, and 800 kg K2O ha-1. The result of the research showed   that plant growth and production of pineapple were improved by soil K nutrient status and dosage of K application.  The  level  of  soil K  nutrient  availability  was  classified  into  low  (50 ppm K2O). Potassium fertilizer is recommended for the soil with low  soil K status of 634 kg K2O ha-1.    Keywords: Ananas comosus, fertilization, potassium, soil nutrient status

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