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INDONESIA
Jurnal Penelitian Pertanian Terapan
Published by Politeknik Negeri Lampung
ISSN : 14105020     EISSN : 24071781     DOI : -
Core Subject : Agriculture,
Agriculture, Biological Sciences & Forestry
Jurnal Penelitian Pertanian Terapan is a peer-reviewed journal that publishes scientific articles from agricultural disciplines covering Plantation crops, Food crops and horticulture, food Technology, Agriculture biology and agribusiness. Articles published in the Journal of Applied Agriculture may be research results (original) and scientific review articles (review). Applied Journal of Agriculture is published by Research Unit and Community Service of Lampung State Polytechnic Society 3 edition one year, that is January, May, and September. JPPT was first published in January 2000. JPPT published a print version in 2007, then started the online version or Open Journal System (OJS) in 2014. Early online versions of JPPT or OJS editing have not yet been fully implemented online management and are beginning to make improvements Web Journal view and journal cover and OJS governance management on Volume 2 No. 2 of 2017. JPPT has been indexed on Google Scholar and Garuda IPI by 2015, and by 2017 it has indexed SINTA and registered DOAJ and Crossref in the same year. We accept submissions from all over Indonesia. All submitted articles will not be published elsewhere, original and not considered for other publications.
Arjuna Subject : -
Articles 795 Documents
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1,2,3-propanetriol 1,2,3-propanetriol: Senyawa Metabolit Sekunder Rhizobakteri Tanaman Padi (Oryza sativa L.) yang Berpotensi Sebagai Bioelisitor jieni wigi nurefendi; Tirto Wahyu Widodo; Mahindra Dewi Nur Aisyah; Trisnani Alif
Jurnal Penelitian Pertanian Terapan Vol 26 No 3 (2026)
Publisher : Politeknik Negeri Lampung.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25181/jppt.v26i3.4341

Abstract

Rhizosphere microorganisms (Plant Growth Promoting Rhizobacteria) play an important role in the plant nutrient cycle (fixation, solubilization, and nutrient supply), phytostimulator production, and plant resistance to pathogens. This study aims to identify the types of rice rhizosphere PGPR and examine secondary metabolite compounds from microorganisms that have the potential as elicitors. This study was conducted using observation and descriptive analysis methods by comparing inorganic and organic rice rhizosphere PGPR. Inorganic-rice rhizosphere soil samples were taken at Kebonsari, while organic ones were taken at Sumberjambe. The results showed that there were three types of bacteria, namely Azotobacter sp., Acetobacter sp., and Bacillus subtilis, for the inorganic rice rhizosphere, while in the organic rhizosphere there were also three types of bacteria, namely Bacillus aerophilus, Acetobacter sp., and Azotobacter sp. The GC-MS test results showed that the highest chemical compounds in the inorganic rice rhizosphere were acetic acid (CAS) and 2-pyrrolidinone, while the highest chemical compounds in the organic rice rhizosphere they were acetic acid (CAS) and 1,2,3-propanetriol. The 1,2,3-propanetriol compound (glycerol) has the potential to be an elicitor, while CAS is an antimicrobial compound.
Efektivitas Kombinasi Pupuk Anorganik Terhadap Performa Agronomis dan Produksi Polong Edamame di Lahan Ultisol Hidayat Saputra; Dulbari Dulbari; Destieka Ahyuni; Nuni Anggraini
Jurnal Penelitian Pertanian Terapan Vol 26 No 3 (2026)
Publisher : Politeknik Negeri Lampung.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25181/jppt.v26i3.4895

Abstract

Edamame (Glycine max (L.) Merrill) is a high-value economic crop. However, its productivity on marginal soils such as Ultisols remains limited due to low soil fertility. This study aimed to evaluate the effectiveness of single, compound, and micronutrient inorganic fertilizer combinations on the agronomic performance and pod yield of edamame in Ultisol. The experiment was arranged in a Randomized Complete Block Design (RCBD) with three replications and eight fertilization treatments, which included: a control (without inorganic fertilizer), standard single fertilizers (Urea, SP-36, KCl), compound fertilizer (NPK), and their combinations with foliar micronutrient fertilizers. The results showed that all fertilization treatments consistently and significantly increased the number of branches, leaf area, flowering rate, plant fresh weight, and filled pod weight compared to the control. The highest increase in filled pod weight per plant was achieved using the single fertilizer treatment (100 kg/ha Urea + 150 kg/ha SP-36 + 100 kg/ha KCl), with an increase of 138.1% (101.37 g), followed by increases in leaf area and plant fresh weight by 115.5% and 100.7%, respectively. Comparative analysis indicated no significant differences among the various fertilization combinations (P1–P7). Correlation analysis demonstrated that pod yield was positively correlated with canopy expansion (leaf area and number of branches) and biomass accumulation, rather than with parameters such as plant height. In conclusion, both single and compound inorganic fertilization combinations demonstrate equivalent effectiveness in optimizing edamame yield components in Ultisols. Cultivation strategies are recommended to utilize cost-efficient base formulations without the necessity of complex micronutrient additions.  
Penerapan Marka Molekuler dan Pendekatan Multi-Omik dalam Identifikasi Toleransi Suhu tinggi pada Tomat (Solanum lycopersicum L.) Siti Zahra Khairunnisa; Farida Damayanti; Citra Bakti
Jurnal Penelitian Pertanian Terapan Vol 26 No 3 (2026)
Publisher : Politeknik Negeri Lampung.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25181/jppt.v26i3.5092

Abstract

Tomato is an important horticultural crop that is highly susceptible to heat stress. Heat stress can reduce the photosynthetic rate, pollen viability, fruit set, and fruit quality, while disrupting plant metabolism. This review aimed to examine the utilization of molecular markers and multi-omics approaches in identifying heat tolerance in tomato plants. The study employed a systematic review based on the PRISMA guidelines, analyzing 20 research articles retrieved from the Scopus and Google Scholar databases published between 2016 and 2026. The results showed that molecular markers such as SSR, RAPD, and SNP have been utilized to identify heat-tolerant genotypes. Transcriptomic approaches successfully identified several genes involved in heat stress responses, including CWINV2, HK2, SPS, SUT, SWEET, HsfA2, HsfA3, and Aox1a. Proteomic approaches revealed the accumulation of proteins involved in defense mechanisms against high temperatures, particularly Heat Shock Proteins (HSPs), Small Heat Shock Proteins (sHSPs), glutaredoxin, glutathione-disulfide reductase, and anti-apoptotic proteins, which contribute to maintaining protein homeostasis, redox balance, and pollen viability under heat stress conditions. The integration of molecular markers and multi-omics approaches provides a more comprehensive understanding of heat tolerance mechanisms in tomato and has the potential to improve the efficiency of developing heat-tolerant varieties through marker-assisted selection (MAS) and precision breeding.  
Pengaruh Genangan dan Varietas terhadap Pertumbuhan, Hasil, dan Struktur Akar Tanaman Tomat (Lycopersicum esculentum Mill.) Indah Sriwahyuni; Untung Slamet Hariadi; Odit Ferry Kurniadinata; Ellok Dwi Sulichantini
Jurnal Penelitian Pertanian Terapan Vol 26 No 3 (2026)
Publisher : Politeknik Negeri Lampung.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25181/jppt.v26i3.5217

Abstract

Waterlogging is one of the major abiotic stresses limiting tomato (Lycopersicum esculentum Mill.) productivity on tropical wetland areas in Indonesia, including East Kalimantan, which has high rainfall. This study aimed to determine the effects of waterlogging level and variety on the growth, yield, and root anatomical structure of four tomato varieties (Servo, Tora IPB, Timoty, and Royal 58). The study was conducted in Rempanga Village, Loa Kulu District, Kutai Kartanegara Regency, East Kalimantan, using a Split Plot design with the water-table depth below the growing medium surface as the main plot (no waterlogging/h0; 30 cm below the medium/h1; 20 cm below the medium/h2; and 10 cm below the medium/h3, kept constant from transplanting to harvest) and variety as the subplot, each with three replications. Data were analysed using analysis of variance followed by Duncan's Multiple Range Test (DMRT) at the 5% level. The results showed that h1 produced the best growth and yield response compared with the other treatments, with the highest leaf number, plant height, stem diameter, root length, and root weight, and productivity reaching 1438.76 g/polybag, whereas the deepest waterlogging (h3) suppressed all parameters, resulting in the lowest productivity (60.73 g/polybag). The Royal 58 variety showed the best tolerance, characterised by the highest root dry weight and productivity among the four varieties tested. Root anatomical observation on Royal 58 indicated cell wall thickening and a porous cortical structure resembling aerenchyma tissue under h1, a pattern also consistently observed in the other three varieties. This study provides baseline information for developing waterlogging-tolerant tomato cultivation on suboptimal land in Indonesia.
Trade-off atau Co-benefit? Analisis Efisiensi Ekonomi Marjinal dan Eko-Efisiensi Substitusi Penggunaan Pupuk Kimia pada Usahatani Bunga Kol Dany Juhandi; Jenny Elisabeth; Widya Yohana Hutapea; Policarpus Eric Christofer; Kris Erlando Pratama Ginting
Jurnal Penelitian Pertanian Terapan Vol 26 No 3 (2026)
Publisher : Politeknik Negeri Lampung.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25181/jppt.v26i3.5264

Abstract

Fertilizer practice in highland vegetable farming is generally set by habit rather than marginal calculation, while its economic evaluation rarely moves beyond average income comparison. This study analyses the cost and income structure of cauliflower farming across levels of chemical fertilizer substitution, identifies treatments on the economic efficiency frontier through dominance analysis and marginal rate of return, measures the eco-efficiency of each treatment, and tests whether economic and ecological efficiency constitute a trade-off or a co-benefit. A quantitative descriptive method was applied to on-farm experimental data on cauliflower cv. Spring 70 in Siponjot Village, highland North Sumatra, during the 2025 growing season, comparing full chemical fertilization following farmer practice with 25 and 50 percent dose reductions substituted by cattle manure and the biofertilizer Fertomax or Bioneensis, plus a completely randomised design experiment with four replications. Data were analysed using partial budgeting, dominance analysis, marginal rate of return, partial factor productivity of nutrient, the eco-efficiency ratio, analysis of variance, and the least significant difference test. Reducing the chemical fertilizer dose raised production by 17.6 to 30.1 percent relative to the control, with treatment K50+PF1 recording the lowest fertilization cost of IDR 7,341,270 and IDR 5,515,873 per hectare and the highest revenue cost ratio, 6.18. Conventional farmer practice was economically dominated in both series because cheaper yet more profitable alternatives existed. The marginal rate of return towards K75+PF1 reached only 35.4 percent under Fertomax but 132.9 percent under Bioneensis, indicating that the optimum dose depends on the type and price of the biofertilizer used. Partial factor productivity of nutrient rose by 111.7 and 114.5 percent while the eco-efficiency ratio more than doubled, and analysis of variance confirmed highly significant differences with an F value of 42.68. No trade-off was found between economic and ecological efficiency, but rather a consistent co-benefit pattern.

Page 80 of 80 | Total Record : 795

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