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 40, No 2 (2012): JURNAL AGONOMI INDONESIA" : 12 Documents clear
Sifat Agronomis, Heritabilitas dan Interaksi G x EGalur Mutan Padi Gogo (Oryza sativaL.) Ishak, ,
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol 40, No 2 (2012): JURNAL AGONOMI INDONESIA
Publisher : Bogor Agricultural University

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Abstract

The average productivity of upland rice is still relatively low. Therefore, it is necessary to improve agronomic characters related to grain yields, maturity, and their adaptation in dry land. The aims of this research were to evaluate agronomic traits, genetic parameters such as genetic and phenotype variance, heritability and G x E interaction of rice mutant lines derived from gamma irradiation treatment on upland rice. This research was conducted in Situbondo and Madiun, during rain season. The analysis of variance (ANOVA) showed that DT15/11/KU and 1058/Cty mutant lines have higher yield compared with Situgintung (check variety). The grain yield per hectare from DT15/11/KU and 1058/Cty mutant lines were 7.76 ton ha-1and 7.18 ton ha-1respectively, with 12% of water content. Broad-sense heritability, genetic and phenotypic and environmental variances for agronomical traits such as filled grain per panicle, weight of 1,000 grain, yield per plot and yield per hectare were observed. The results showed that broad-sense heritability for weight of 1,000 grain was 94%, whereas other characters was less than 40%. Phenotypic variance was dominated by genetic variance for weight of 1,000 grain. Further selection for filled grain per panicle, yield per plot and yield per hectare needs to be conducted. G x E interaction and genotype were highly significant, whereas location variance was highly significant for filled grain and weight of 1,000 grains. Keywords: agronomic characters, broad-sense heritability, G x E interaction, genetic variance, upland rice
Evaluasi Beberapa Galur-Pup1Tanaman Padi (Oryza sativaL.) pada Larutan Hara dan Lapangan Prasetiyono, Joko; Suhartini, Tintin; Soemantri, Ida Hanarida; Tasliah, ,; Moeljopawiro, Sugiono; Aswidinnoor, Hajrial; Sopandie, Didy; Bustamam, Masdiar
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol 40, No 2 (2012): JURNAL AGONOMI INDONESIA
Publisher : Bogor Agricultural University

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Abstract

Phosphorus (P) deficiency is one of major problems in rice cultivation. Development of a tolerant variety to P deficient soil is expected to reduce the needs of P fertilizer. The aim of this research was to evaluate the agronomic performance of Pup1-introgression rice lines. This research consisted of two separate experiments, an evaluation on rice grown in nutrient solution in the greenhouse of ICABIOGRAD, Bogor; and field evaluation at upland rice screening site Taman Bogo, Lampung. The rice lines used were BC2F3 derived from crossing of Situ Bagendit with Kasalath and NIL-C443, and from crossing of Batur with Kasalath and NIL-C443. Molecular analysis was conducted to verifiy the Pup1 introgression in the lines used and successfully confirmed the occurance of homozygote Pup1 segment in those lines. Evaluation of rice lines grown in nutrient solution was performed in a split plot factorial design, using the dose of Al (0 and 45 ppm Al3+) as main plots and dose of P (0.5 and 10 ppm P) as subplots. Field evaluation was performed in split plot design, with P fertilization (0 and 500 kg SP-18 ha-1) as main plots and BC2F3 lines as the subplots. Evaluation using Yoshida nutrient solution showed that the BC2F3 lines had greater total dry weight under low-P condition (37.5-112.5%), especially under Al-toxicity, compared to the respective parental varieties (Situ Bagendit and Batur). Field evaluation showed that the Pup1-introgression lines had greater shoot dry weight than the respective parental lines (10.5-74.82%). However there was no significnant effect of Pup1 introgression in terms of weight of filled grain. Keywords: Al toxicity, BC2F3-Pup1 lines, P-deficiency, rice, Yoshida nutrient solution
Pengembangan Kultur Mikrospora pada Varietas Padi Ladang Lokal Asal Kendari Suaib, ,; Arma, Makmur Jaya
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol 40, No 2 (2012): JURNAL AGONOMI INDONESIA
Publisher : Bogor Agricultural University

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Abstract

The three Kendari local upland rice varieties i.e. Paedai Meeto, Pae Ikulaku and Pae Loio were studied for their ability to produce the embryogenic microspore and microspore callus from anther under high temperature stress pretreatments. The pretreatment was conducted by incubating the anther in a B medium at 33 oC in darkness for 0, 2, 4, and 7 days to induce the growth of embryogenic microspores. The formation of microspore calli was obtained by incubating the embryogenic microspores into the MO-19 embryo induction medium. Scoring was conducted on the percentage of: (1) embryogenic microspores, (2) symmetrical binucleat microspores, (3) multinucleate microspores, and (4) microspore calli or embryos. Each replication consisted of three hundred of individual microspores and every treatment was replicated in three times. The mean values of the data were analyzed by variance analysis, and the Fisher LSD mean separation at 0.05 of significance level were applied to judge the best treatments. The result showed that Pae Loio produced the higher frequency of embryogenic microspores after anther pretreatment in B medium for 4 days at 33 oC in darkness compared to other varieties. Culture of embryogenic microspore of Pae Loio in MO-19 medium over 30 days also produced the symmetrical binucleate and multinucleate microspores, and microspore calli at higher frequencies than those of other local varieties.Keywords: anther, calli, embryogenic microspores, high temperature pretreatment, upland rice
Pengaruh Konsentrasi Besi dalam Larutan Hara terhadap Gejala Keracunan Besi dan Pertumbuhan Tanaman Padi Noor, Aidi; Lubis, Iskandar; Ghulamahdi, Munif; Chozin, Muhammad Achmad; Anwar, Khairil; Wirnas, Desta
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol 40, No 2 (2012): JURNAL AGONOMI INDONESIA
Publisher : Bogor Agricultural University

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Abstract

Iron (Fe) toxicity is a major constraint in rice production that decreases yield due to high level of soluble Fe. The aims of this experiement were to study the effect of particular Fe concentrations in nutrient solution on rice growth, and to determine Fe concentration in nutrient solution that caused light, moderate, and severe Fe toxiciy symptom. The experiment was conducted in a greenhouse, Bogor Agricultural University from May to July 2010. A randomized block design with two factors and three replications were used in this study. The first factor was Fe concentration in the medium solution (2, 50, 100, 200, 400, 600 ppm Fe), and second factor was rice genotypes (IR64, Margasari). The results showed the higher Fe concentration in the solution resulted in higher scores of iron toxicity symptoms, higher Fe levels in the plant, and caused stunted growth of rice plants. Levels of Fe in a solution of ≥ 200 ppm Fe inhibited plant growth. Iron toxicity symptom in Margasari was lower than the IR64 varieties, especially at concentrations of 200 and 400 ppm. According to the regression equation Y = 0.022X+ 1849, Fe concentration in the solution which caused light Fe toxicity symptom (score ≤ 3) was ≤ 52 ppm Fe, moderate (score = 5) was 143 ppm Fe, heavy (score = 7) was 234 ppm Fe, and severe (score ≥ 9) was ≥ 325 ppm Fe. Keywords: iron toxicity symptoms, iron concentration, rice
Metode Pengusangan Cepat untuk Pengujian Vigor Daya Simpan Benih Cabai (Capsicum annuumL.) Ekowahyuni, Luluk Prihastuti; Sutjahjo, Surjono Hadi; Sujiprihati, Sriani; Suhartanto, Mohamad Rahmad; Syukur, Muhamad
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol 40, No 2 (2012): JURNAL AGONOMI INDONESIA
Publisher : Bogor Agricultural University

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Abstract

The ability of seed to maintain seed quality during storage is called seed vigor. Accurate method for seed vigor testing of pepper seeds is necessary to accurately determine seed storability during seed distribution. The aim of this research was to determine the best accelerated aging method (AAM) of pepper seed. Freshly harvested seeds of Capsicum annuumL., IPB C9 genotype were used in this study. The experiment used randomized complete block design (RCBD) with three replications. The experimental treatments were seed vigor testing methods i.e. natural deterioration test at room temperature in controlled humidity (RH 90-95%), and four AAM (hot water 60 ºC, methanol 20%, ethanol 20%, and high temperature at 40 ºC). The best method was selected using analysis of variance, coeficient of variance, regresion dan t student analysis. AAM using 20% methanol at periods of 0, 2, 4, 6 and 8 hours was the best method of seed vigor testing for pepper seed. Keywords: accelerated aging, deterioration, ethanol, methanol, high temperature
Pendugaan Parameter Genetik pada Beberapa Karakter Kuantitatif pada Persilangan antara Cabai Besar dengan Cabai Keriting (Capsicum annuumL.) Arif, Abdullah Bin; Sujiprihati, Sriani; Syukur, Muhamad
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol 40, No 2 (2012): JURNAL AGONOMI INDONESIA
Publisher : Bogor Agricultural University

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Abstract

Selection method is one of the most important factors in determining the success of pepper breeding programs. Selection method will be effective if it is supported by a complete knowledge of genetic character inheritance. The aim of this research was to investigate the inheritance patterns to quantitative characters using large pepper (P1 (IPB C5)), curly pepper (P2 (IPB C105)), F1, F1R, BCP, BCP2 and F2. The result showed that dichotomous height, days to harvest and weight per fruit characters were not maternally inherited. The additive-dominant genetic model was the most suitable for dichotomous height character. The additive-dominant with influence of interaction additive-dominant and interaction dominant-dominant genetic model was suitable for days to harvest character. The additive-dominant with influence of interaction additive-additive and interaction dominant-dominant genetic model was suitable for the weight of fruit character. Broad-sense and narrow-sense heritabilities range medium for dichotomous height and weight per fruit characters. Heritability of the days to harvest character was high in a broad-sense but was low in the narrow-sense. Keywords: genetic model, heritability, inheritance
Effect of Sector (Position in Canopy) on Allocation of 13 C-photosynthates in Mangosteen Setiawan, Eko; Poerwanto, Roedhy; Fukuda, Fumio; Sugiyama, Nobuo; Saitoh, Kuniyuki; Kubota, Naohiro
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol 40, No 2 (2012): JURNAL AGONOMI INDONESIA
Publisher : Bogor Agricultural University

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Abstract

We investigated the effect of sector (position in canopy) on translocation and distribution of 13C-photosynthates in  mangosteen trees and related the findings to previous analyses of fruit quality. Our experiment was conducted on three 25-year-old mangosteen trees. Tree canopies were divided into 9 sectors based on height (bottom, middle, top) and width (inner, center, outer). One branch from each sector was labeled with 13CO2 in December 2003. Immediately after labeling, 13C concentration in leaves from middle sectors was higher than that in leaves from other positions. 13C concentration in all leaves decreased rapidly for 24 h after 13C feeding, followed by a gradual decrease. In contrast, 13C concentration increased over time in the pericarp and aril of fruits. Translocation of 13C-photosynthates into fruit was high in Sectors 4 and 5, and in top positions (Sectors 7 to 9). At 96 h after 13C feeding, the highest distribution ratio of 13C-photosynthates was observed in stems, followed in descending order by pericarp, leaf, and aril. 13C distribution ratio in the aril was generally highest in fruits from inner and center positions. The relationship between partitioning of photosynthates and quality of mangosteen fruit, which differs among sectors, has been discussed. Keywords: fruiting positions, Garcinia mangostanaL., photosynthate partitioning, 13C, tree branches
Perlakuan Benih dengan Rizobakteri Meningkatkan Mutu Benih dan Hasil Cabai (Capsicum annuumL.) Sutariati, Gusti Ayu Kade; Safuan, La Ode
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol 40, No 2 (2012): JURNAL AGONOMI INDONESIA
Publisher : Bogor Agricultural University

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Abstract

The development of biological products based on beneficial microorganisms could extend the range of options for maintaining the health and yield of crops. Rhizobacteria have been used for ‘promoting plant growth. The objectives of this research were to determine the best method of preplant seed treatment through seed conditioning with rhizobacteria which would be effective to improve yields and increase seed quality of hot pepper. This research was conducted in Agronomy Laboratory Haluoleo University and in the field of Wawotobi Seed Farm Centre of Southeast Sulawesi Province. Seed conditioning with rhizobacteria was effective in improving plant growth, yield and seed quality of hot pepper. However, the most effective treatment was the integration of sawdust seed matriconditioning with rhizobacteria Bacillus polymixaBG25. The seed treatment increased fruit total per plant to 51, compared with 26 in the control seeds. The treatment was also effective in increasing seed viability and vigor (germination percentage and vigor index) to 81% and 46% compared with 41% and 26% in the control seeds. Based on this experiment, rhizobacteria B. polymixaBG25 integrated with sawdust seed matriconditioning could be recommended as biofertilizer in improving yield and seed quality of hot pepper. Keywords: hot pepper, matriconditioning, rhizobacteria, sawdust, seed treatment
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
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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