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INDONESIA
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy)
Published by Institut Pertanian Bogor
ISSN : 20852916     EISSN : 23373652     DOI : -
Core Subject : Economy, Agriculture,
Agriculture, Biological Sciences & Forestry Economics, Econometrics & Finance
Aims and Scope Aims Indonesian of Journal Agronomy (Jurnal Agronomi Indonesia), the official journal of the Indonesian Society for Agronomy, publishes primary research paper, review article, policy analysis and research notes and preliminary results in all areas of agronomy. Manuscripts could be written either in English or in Indonesia. Scope Indonesian of Journal Agronomy (Jurnal Agronomi Indonesia) covers agronomy in broad sense including plant production, genetic and plant breeding, plant physiology, plant ecology, plant biotechnology, modeling, seed science and technology and weeds science on food, horticulture, plantation, and forage crops.
Arjuna Subject : Ilmu Pertanian dan Biologi (Semua) - Agronomi dan Ilmu Tanaman
Articles 971 Documents
 85   86   87   88   89 
Analysis of Starch, Chlorophyll, and Antioxidant Content of Cardamom (Amomum cardamomum) Leaves from Various Accessions Lelly Aulia Damarhati; Sriwongo, Stephanie; Taureza, Aulia; Mulyati, Teti; Liwanda, Novian; Nurcholis, Waras
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol. 51 No. 2 (2023): Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy)
Publisher : Indonesia Society of Agronomy (PERAGI) and Department of Agronomy and Horticulture, Faculty of Agriculture, IPB University, Bogor, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24831/ija.v51i2.44781

Abstract

Cardamom (Amomum cardamomum) is a herbal plant with various phytochemical compounds such as phenols, starch, tannins, terpenoids, flavonoids, and antioxidants. Cardamom of the same type but originating from different regions can produce variations in the content of metabolites. This study aimed to select cardamom accession containing high starch, chlorophyll, and antioxidant capacity. The research was conducted at Biopharmaca Experimental Garden, Cikabayan IPB University from March to August 2022 using four cardamom accessions, i.e., Bogor Hijau, Bogor Merah, Ciamis and Sukabumi. Three leaves were taken for each accession, with three replications. The leaves taken were numbers 5, 6, and 7 counted from the tops of the cardamom plant. The methods used in this study were the phenol-sulfuric acid method, the DMSO method, the DPPH method, and the CUPRAC method. The results showed that the highest starch content was produced by the cardamom of Bogor Merah accession, with an average of 3.63 g (100 g)-1 FW. The highest total chlorophyll content was found in the cardamom of Bogor Hijau accession, with an average of 1.9 mg g-1 FW. At the same time, the highest antioxidant capacity using the DPPH method was produced by the cardamom of the Sukabumi accession with an average of 1.28 μmol TE g-1 FW. In comparison, the highest antioxidant capacity of the CUPRAC method was produced by the cardamom of the Bogor Hijau accession with an average of 5.71 µmol TE g-1 FW. Thus, it is recommended to use Bogor Merah dan Bogor Hijau accession for further evaluation. Keywords: accession, antioxidant activity, cardamom leaves, chlorophyll, starch
Flower bagging affects seed quality and dormancy period in Na-Oogst tobacco (Nicotiana tabacum L. var H-382) Thamrin, Nurhaliza; Amilin, Miftahul; Mufadilah, Mitha Aprilia; Ubaidillah, Mohammad
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol. 51 No. 2 (2023): Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy)
Publisher : Indonesia Society of Agronomy (PERAGI) and Department of Agronomy and Horticulture, Faculty of Agriculture, IPB University, Bogor, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24831/ija.v51i2.45493

Abstract

Seeds of tobacco plants are unable to germinate immediately after harvest because they have a dormancy period. The seed dormancy period may be shortened by bagging methods to affect the hormone content in the seeds. The bagging flower makes the dark conditions in the process of flowering and seed development, affecting the content of the hormone’s auxin and ABA. This study aimed to determine the effects of different bag colors on the dormancy period of tobacco seeds as evidenced by their vigor and viability. The research was conducted from March to August 2022 at PT. Dwi Light Tobacco Green House, Lombok Wetan, Bondowoso, Indonesia. Four crepe colors of paper were used as bagging treatments (black, red, yellow, blue) and control (without bagging) and replicated four times. The results showed that the bagging treatment significantly affected one hundred-seed weight, seed germination, seed growth rate, and seedling height. Black crepe paper resulted in the highest seed germination percentage (98.5%) and seed growth rate (11.68). Keywords: bag color, seed germination, viability, vigor
Agronomic traits of rice hybrids (Oryza sativa L.) derived from new plant type and male sterile parents Desi Anugra Safitri; Willy Bayuardi Suwarno; Ayub Darmanto; Hajrial Aswidinnoor
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol. 51 No. 2 (2023): Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy)
Publisher : Indonesia Society of Agronomy (PERAGI) and Department of Agronomy and Horticulture, Faculty of Agriculture, IPB University, Bogor, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24831/ija.v51i2.45759

Abstract

Hybrid rice is derived from a cross between the cytoplasmic male sterile (CMS) as the female parent and the restorer line as the male parent. This study aimed to evaluate the ability of several new plant type (NPT) rice lines as restorers of the CMS female parent and to elucidate the performance of the hybrid combinations. The research was carried out from December 2019 to November 2020 at Babakan Sawah Baru Experimental Station, Department of Agronomy and Horticulture, IPB University, Bogor, Indonesia. The hybrids were evaluated in the field together with the CMS female parent, male parents, and two check varieties, namely Ciherang and hybrid P05 Prima Seed. The experimental design used was a randomized complete block design (RCBD) with two replications. The results showed that two male parental lines, IPB189-F-10-3-2 (T6) and IPB189-14-1-1 (T9), had a hybrid seed yield per hill of 66.04 g and 75.27 g, respectively. These two parents have the restorer gene (R) which is substantiated by the good characteristics of the number of filled grains and total grain per panicle of the two hybrids. The potential hybrids CMS x IPB189-F-10-3-2 and CMS x IPB189-14-1-1 had a positive heterosis for panicle length and 1,000 grain weight, and could be evaluated in future research. Keywords: CMS; heterosis; heterobeltiosis; rice hybrid
Effect of nitrogen doses on growth and yield of several varieties of tungro-infected rice plant Achmad Gunawan; Purwono; Lubis, Iskandar; Widiarta, I Nyoman
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol. 51 No. 2 (2023): Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy)
Publisher : Indonesia Society of Agronomy (PERAGI) and Department of Agronomy and Horticulture, Faculty of Agriculture, IPB University, Bogor, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24831/ija.v51i2.46091

Abstract

Tungro is still a problem in efforts to increase rice production, it can disrupt the stability of rice production if conditions worsen. Plant fertilizer application is an integral part of plant cultivation, especially nitrogen fertilizer. Improper utilization of fertilizers can harm agriculture by increasing plant vulnerability to pests and diseases. Thus, the purpose of the study was to examine the effects of various doses of nitrogen on the agronomic performance of rice plants, as well as their susceptibility to tungro. The research was conducted at the Greenhouse, Sukamandi, and the Muara Experimental Field, Center for Rice Research, Bogor. The experiments, both in the greenhouse and field, used a split-plot randomized complete block design with three replications. The main plots were variety, while the subplots were nitrogen dosage. The results showed that Inpari 36 Lanrang was better than Ciherang and IR64 in terms of plant height, number of tillers, empty grain per clump, leaf greenness, and yield/pot in the greenhouse. While from the field experiment, varieties have different flowering times, plant heights, number of filled grains, number of empty grains, 1,000-grain weight, net assimilation rate, yield/plot, and tungro incidence. The use of nitrogen fertilizer affected flowering time in the greenhouse and affected productive tillers, yield per plot in the field, and the greenness of the leaves of healthy plants. The optimum dose is 167.5 kg ha-1 nitrogen. As a result, it is recommended that controlling tungro disease should involve the integration of fertilizer application that is balanced with the use of resistant varieties.Keywords: agronomic performance, nitrogen rates, plant diseases, resistant varieties, tungro infection
Growth and yield of rice from mycorrhizal enrichment seedlings on different soil water content Mahmudi; Sasli, Iwan; Ramadhan, Tris Haris
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol. 51 No. 2 (2023): Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy)
Publisher : Indonesia Society of Agronomy (PERAGI) and Department of Agronomy and Horticulture, Faculty of Agriculture, IPB University, Bogor, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24831/ija.v51i2.46201

Abstract

The growth and yield of rice in limited soil water are expected to increase through the application of mycorrhizae due to the increasing root ability to absorb water and nutrients from the soil. The study aimed to determine the role of mycorrhizae on the growth and yield of rice plants in different soil water content. The study was conducted in Mempawah District, West Kalimantan, in February-June 2022. The experiment was arranged in a split-plot randomized complete block design with main plots of mycorrhizae treatment on seedlings (without and with mycorrhizae application), and subplots of soil water content (100%, 80%, 60%). The results showed that mycorrhizae could colonize 60-80% of roots and increase phosphorus absorption at up to 60% of soil water content. Application of mycorrhizae improved plant growth up to 80% of soil water content for the maximum number of a tiller, and 60% of soil water content for the leaf area. Mycorrhizae performed better to increase yield at up to 80% soil water content on the number of productive tillers and grain index of 1,000 seeds, and it performed better at a soil water content of 100% for grain weight per hill. Keywords: microorganisms, plant resistance, rice production, root colonization
Fruit quality and shelf-life improvement of tomato (Solanum lycopersicum L.) 'Servo' by inorganic fertilizer enriched with amino acid Zalfa Amelia; Murti, Rudi Hari; Ilmiah , Haviah Hafidhotul; Purwanto, Benito Heru
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol. 51 No. 2 (2023): Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy)
Publisher : Indonesia Society of Agronomy (PERAGI) and Department of Agronomy and Horticulture, Faculty of Agriculture, IPB University, Bogor, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24831/ija.v51i2.46551

Abstract

Fertilizer and maturity stage affect the nutritional content and quality of tomatoes. This study aimed to obtain the best dosage of amino acid fertilizer on the qualities and shelf life and to determine the effect of the maturity stage on the qualities of Servo tomatoes. The research design used factorial RCBD with 3 blocks as replications. The Servo tomatoes were grown in Wonosobo District and foliar fertilized with 4 levels of amino acid fertilizer, namely 0, 1, 2, and 4 L ha-1 amino acid fertilizer, and 2 L ha-1 comparison fertilizer. Observation of tomato fruit quality was conducted in Horticulture Sublaboratory, UGM at 27,5 °C with relative humidity of 73%. The quality observed was CO2 concentration, visual quality rating, weight loss, fruit firmness, fruit color, TSS, TTA, carotenoids, lycopene, flavonoids, and vitamin C. The observation was terminated when the score of VQR reached 3 as shelf life of tomatoes. Amino acid fertilizer can improve the quality of Servo tomatoes as seen from the parameters of fruit color (a*) and total titrated acid (TTA). In terms of other parameters, the amino acid fertilizer does not affect the quality of Servo tomatoes. The highest value on fruit color (a*) and TTA resulted from 2 L ha-1 of amino acid fertilizer. The maturity stage significantly affects the quality improvement of fruit firmness, weight loss, VQR, CO2 concentration, TTA, total soluble solids, carotenoids, and flavonoids. L ha-1 Keywords: Aminoalkanoic; fertilizer effect; storage life; tomato quality
Changing rainfall and its adaptation strategies on tea plantation in West Java, Indonesia Fatawa, Muhammad Ihsan; Santosa, Edi; Hapsari, Dhika Prita; Krisantini
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol. 51 No. 2 (2023): Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy)
Publisher : Indonesia Society of Agronomy (PERAGI) and Department of Agronomy and Horticulture, Faculty of Agriculture, IPB University, Bogor, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24831/ija.v51i2.47081

Abstract

Climate change, i.e., changing rainfall refers to drought and excess rainfall, is known to affect the growth and yield of tea production in many regions. However, research on the impact of climate change on tea plantations in Indonesia is still limited. The study aimed to evaluate the impact of changing rainfall on the productivity of tea plantation at Cianjur, West Java. The data was collected from interviews, field data, and company records from April to July 2022. The results showed that changing rainfall of both limited rainfalls during El Nino and excess rainfall during La Nina affected the tea production. Annual tea productivity declined during both climatic events. Shortage of water during El Nino primarily reduced crop growth, while excess rainfall during La Nina reduced the capacity of tea pickers and increased labor for crop maintenance. Failure to adapt to the direct and indirect impacts of climate change could contribute to declining tea production in Indonesia. Thus, comprehensive action is needed including capacity building in human resources, water management, and microclimate adaptation such as shading plants and tolerant clones to sustain tea production under climate change events.
Genetic variability and stability analysis of chili in three environments Inayah Yasmin Kamila; Maharijaya, Awang; Sobir
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol. 51 No. 2 (2023): Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy)
Publisher : Indonesia Society of Agronomy (PERAGI) and Department of Agronomy and Horticulture, Faculty of Agriculture, IPB University, Bogor, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24831/ija.v51i2.47134

Abstract

Chili is an important vegetable crop consumed by most Indonesian people. Chili production is affected by the limited varieties and low adaptability to growing in different environments. This study aimed to identify the variability of 22 chili pepper on morphology, the genotype x environment interaction, and the stability of 10 chili pepper genotypes in 3 different environments. The study was conducted from July 2020 to February 2022 in Sleman DIY, Bogor, and Blitar. The experimental design used a single-factor randomized complete block design, each consisting of three replicates. The genotypes evaluated were HCR 17-003, HCR 17-004, HCR 17-007, HCR 17-008, HCR17-012, HCR 17-013, HCR 17-014, HCR 17-017, F7-1, F7-2, F7-3, Ca011, Ca013, Ca020, Ca021, Cf002, Cf005, Cf007, Cf010, Cf015, Bonita, and Loblita. Ten genotypes were evaluated in stability analysis, i.e., PKHT A, PKHT B, Bara, Genie, Centil, PKHT C, PKHT D, Bonita, Sona, and Tunduk. The biplot analysis for genetic diversity study showed a total diversity was 40.5% for the two main components. The genotype x environment interaction had a significant effect on productivity. PKHT C and Sona were identified as stable based on the Francis-Kannenberg method. PKHT C, Sona, PKHT B, and Bonita were stable based on the Wricke method. PKHT A and Bonita were stable based on Finlay-Wilkilson methods. PKHT B, PKHT C, Sona, and Bonita were identified as stable based on the AMMI method. The genotype which is stable based on all stability methods was PKHT C. Keywords: AMMI; GxE interaction; parametric stability; variety.
Adaptability assessment of three spice plant as understory plants in oil palm (Elaeis guineensis Jacq.) cultivation Edvanido, Hijrianto; Yahya, Sudirman; Kurniawati, Ani
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol. 51 No. 2 (2023): Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy)
Publisher : Indonesia Society of Agronomy (PERAGI) and Department of Agronomy and Horticulture, Faculty of Agriculture, IPB University, Bogor, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24831/ija.v51i2.47351

Abstract

Utilization of land with intercrop plants can support the productivity of the land. The wide spacing of oil palm plants can be used to plant intercrops. Spice plants such as red ginger, turmeric, and cardamom are examples of intercropping plants under the shade of oil palm. This study aimed to determine the adaptability of red ginger, turmeric, and cardamom as understorey plants of different oil palm ages. The research was carried out from February to November 2021 at Sekernan, Muaro Jambi, Jambi. The study consisted of three experiments to investigate three spice plants. Each experiment used a randomized complete block design (RCBD) with oil palm ages as treatments, namely 0, 5, 10, 15, and 20 years. Variables observed included light intensity, plant height, tiller number, leaf number, and rhizome weight. The red ginger and turmeric were considered as adaptive plants to understorey conditions due to the yield of > 60% in 15-year-old oil palm trees than those grown in non-shade conditions. Production levels of red ginger and turmeric were determined by the number of tillers and leaves. The cardamom plant under oil palm shade produced a better yield than that in control. This implies that all three spices are suitable as intercrop plants under oil palm plantations. Keywords: cardamom; low light intensity; red ginger; shade stands; turmeric
Utilization of amelioration and bioremediation to reduce Al stress in upland rice “Inpago 12” Pratiwi, Gagad Restu; Gunawan, Indra; Margaret, Swisci; Nurrahma, Arinal Haq Izzawati
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol. 51 No. 2 (2023): Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy)
Publisher : Indonesia Society of Agronomy (PERAGI) and Department of Agronomy and Horticulture, Faculty of Agriculture, IPB University, Bogor, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24831/ija.v51i2.47645

Abstract

The contribution of rice production in drylands (upland rice) to national rice production is still low, due to several limiting factors including limited water, low pH, and low soil fertility. This study aimed to obtain improved recommendations for amelioration and bioremediation in drylands with Al stress to enhance rice production. The upland rice variety of Inpago 12 was planted at Taman Bogo Experimental Farm, East Lampung in the first planting season of 2020. The experiment was arranged in a split-plot design with three replications. The main plot was the application of amelioration materials consisting of control (without amelioration), CaMg(CO3)2, CaCO3, and rock phosphate. The subplot was the application of bioremediation materials consisting of control (without bioremediation), biofertilizer, endophytic microbes, and citric acid. Results showed that amelioration and bioremediation on dry land with low to moderate Al stress and high Al stress did not significantly increase the growth of rice plants. However, bioremediation in the form of citric acid on land with low to moderate Al stress significantly increased grain production by 6.21% than without bioremediation. Keywords: Aluminium, dryland, limited water, rice production, low soil fertility, low pH

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