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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 All submitted articles will not be published elsewhere, original and not considered for other publications.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 741 Documents
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Hubungan Penurunan Vitamin C Sayuran Hiperakumulator Dengan Residu Zat Aktif Insektisida Fipronil Agus Sutanto; Hening Widowati; Mia Cholvistaria
Jurnal Penelitian Pertanian Terapan Vol 21 No 3 (2021)
Publisher : Politeknik Negeri Lampung.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25181/jppt.v21i3.2112

Abstract

The use of insecticides is often unavoidable in the production of vegetable crops, but on the other hand it can lead to the presence of harmful substances in vegetables. In this regard, the aims of this study is to determine the relation of Insecticides active substance i.e fipronil toward the reduction of Vitamin C in Hyperaccumulator vegetable i.e Spinach (amaranthus hybridus), Caisim (Brassica juncea) and Kangkung (ipomea raptans) with ex pose facto method, and the samples taken by Completly Random Design (CDR) and tested in Laboratory. The regression test results show the sig value of 0.07> 0.05, the R square value of 0.871 means that it has a significant correlation with the percentage of the correlation of 87.10% on the decrease in vitamin C in vegetables. Vitamin C acts as an antioxidant to ward off free radicals. Insecticide Active Substances made the contains of vitamin in hyperaccumulator vegetable tissue being decrease. Based on the research conducted, it was concluded that there was a negative relationship between the residue of the active substance of the insecticide fipronil and a decrease in vitamin C in hyperaccumulator vegetables, in other words, when the residue of the active substance of the insecticide fipronil increased, the vitamin C content in the vegetables decreased.
Effect of Priming on Vigor of Germinated Chili (Capsicum annum L.) Seeds in Aluminium Stress Conditions Agustiansyah Agustiansyah; P. B. Timotiwu; E. Pramono; M. Maryeta
Jurnal Penelitian Pertanian Terapan Vol 21 No 3 (2021)
Publisher : Politeknik Negeri Lampung.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25181/jppt.v21i3.2133

Abstract

Seed germination in ultisol is a problem. Ultisol has a low pH, poor in nutrients and organic matter, and high Al content. The low physiological quality of seeds is also a limiting factor. The purpose of this study was to determine the effect of priming on the seed vigor of two chili varieties whose seeds have expired and have not expired. This experiment consisted of 2 experiments, namely Experiment 1, which used seeds that had expired (deteriorating), and Experiment II, which used seeds that had not expired (non-deteriorating). This study was structured using a completely randomized design (CRD) which was repeated three times. This experiment is factorial. The first factor is priming, consisting of five levels: control, immersion in water, 30% PEG, 50 ppm GA3, and 1% KNO3. At the same time, the second factor in the first experiment was the seeds of the Tanjung 2 and Kencana varieties that had expired (deteriorating). In the second experiment, the second factor was the seeds of the Tanjung 2 and Kencana varieties that had not expired (non-deteriorating). The data obtained were analyzed using the R statistic program with a 5% HSD test. The results showed that priming with 50 ppm GA3 and 1% KNO3 increased the vigor of seeds that had expired (deteriorating). Meanwhile, priming with water and 1% KNO3 increased the vigor of seeds that had not yet expired (deterioration). The Kencana variety has a higher vigor than the Tanjung 2 variety on expired seeds. In seeds that have not yet expired, both varieties have the same good vigor.
JALUR INFEKSI Beauveria bassiana DAN Metarhizium anisopliae SEBAGAI PENGENDALI HAYATI COLEOPTERA:Oryctes rhinoceros L. Dyah Nuning Erawati; Irma Wardati; Suharto Suharto; Joni Murti Mulyo Aji; Novita Cholifah Ida; Yeni Suprapti
Jurnal Penelitian Pertanian Terapan Vol 21 No 3 (2021)
Publisher : Politeknik Negeri Lampung.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25181/jppt.v21i3.2139

Abstract

Recent co-evolutionary studies of insect-pathogens have shown that entomopathogenic fungi have a greater potential for oral toxicity in terms of virulence in the mouth infection of insect pests. Therefore, it is necessary to conduct research on finding the route of infection of B. bassiana and M. anisopliae through the mouth in the larvae of the rhinoceros beetle O. rhinoceros. The purpose of this study was to analyze the path of infection of B. bassiana and M. anisopliae in O. rhinoceros larvae through exposure to the entompotagen fungus. The study was conducted at the Plant Protection Laboratory Politeknik Negeri Jember using a single factor Completely Randomized Design (CRD) with B. bassiana and M. anisopliae isolates from Temanggung, Jember and Jombang. Data analysis used Analysis of Variance and further analysis used Least Significant Difference Test at 5% level. The results showed that all isolates were able to infect and cause mortality in the test insects. MJb isolate had the highest effectiveness with the mortality rate of the test insects reaching 100% and the highest spore density with an average of 8.9 x 109 conidia/ml on day 6 after application. The hyphae that were abundant in the abdomen of cadaveric infected with M. anisopliae were different from the hyphae which grew more on the head of insects infected with B. bassiana, confirming previous research on the route of B. bassiana infection through oral toxicity. These results will be useful in providing new information regarding potential pathways of infection of B. bassiana in O. rhinoceros larvae through oral toxicity mechanisms, which until now have been very little reported. Keywords: entomopathogenic fungi, oral infection, larvae, coleoptera
Potential Characterization and Identification of Indigenous Rhizobacteria Species of Ultisol Soil to Support the Growth of Several Superior Upland Rice Varieties Sapto Nugroho Hadi; Ida Widiyawati; Syaeful Anwar
Jurnal Penelitian Pertanian Terapan Vol 21 No 3 (2021)
Publisher : Politeknik Negeri Lampung.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25181/jppt.v21i3.2146

Abstract

TG4 and SR2 were isolates of indigenous bacteria from cassava roots from Banyumas Regency, Central Java. Both are local isolates from marginal lands that can be developed as biofertilizers. This study aimed to determine the potential characteristics of bacterial isolates TG4 and SR2 in supporting the growth of superior upland rice and determining species identity based on the molecular analysis of 16S rRNA. Bacterial isolates TG4 and SR2 were determined for their potency of Plant Growth Promoting Rhizobacteria (PGPR) by fixing N2, dissolving phosphate, and producing Indole Acetic acid (IAA). Bioassays were carried out on TG4 and SR2 isolates by application of bacterial isolates (B0 = control, B1 = TG4, B2 = isolates SR2, B3 = isolates TG4 and SR2) on superior upland rice (V1 = INPAGO UNSOED 1, V2 = UNSOED PARIMAS, V3 = INPAGO 8) in sterile ultisol soil. The F test was used for bioassay data analysis, and if there was a significant difference, it was further tested with Duncan's Multiple Range Test (DMRT) with an error rate of 5%. The identity of bacterial species TG4 and SR2 was obtained by analyzing 16S rRNA sequences and genetic relationships through phylogenetic trees. The results showed that the isolates of TG4 were phosphate solubilizing bacteria and producers of IAA, while the isolates of SR2 were nitrogen fixing, phosphate solubilizing, and IAA producers. The application of bacterial isolates TG4 and SR2 significantly affected root length wet and dry weight of upland rice plants, with the highest value obtained from using a consortium of TG4 and SR2 bacteria. Bacterial isolates TG4 were identified as Bacillus albus, while SR2 as B. Paramycoides. Bacterial isolates TG4 and SR2 can be used as biofertilizers to support superior upland rice growth.
Strategy of Rice Variety Technology Transfer for Supporting the Agricultural Inventions Commercialization Morina Pasaribu; Lukman M. Baga; Joko Purwono
Jurnal Penelitian Pertanian Terapan Vol 21 No 3 (2021)
Publisher : Politeknik Negeri Lampung.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25181/jppt.v21i3.2152

Abstract

Innovation is an important aspect in the nation's competitiveness. Technology transfer is required to bring invention into innovation. However, the implementation technology transfer, especially commercialization technology is still considerably low. This challenge is faced by Indonesian Agency for Agricultural Research and Development (IAARD) to commercialize Indonesian rice varieties. Adoption and interest of Industry in the commercialization of varieties invented by IAARD in 2019 was only 11%. This study aims to build roadmap business strategy for commercialization rice varieties invented by IAARD. The method used in this research was a business model canvas approach, SWOT analysis, and a strategic roadmap. The results showed that there were 11 strategies that can be applied in four approaches , namely a) intensive strategy: expanding and mapping new customer segmentation, optimizing promotion mechanisms and attracting new partners, and strengthening the organizational structure of implementing technology transfer, b) turn-around strategy: adding and increasing HR competence, planning R&D activities by measuring Technology Readiness Level (TRL or TKT), and increasing the capacity of facilities and infrastructure, c) diversification strategy: improving the quality of rice varieties and commercial technology transfer services, pre-licensing, and d) consolidation strategy: building information systems, collaborative alliances with stakeholders, and valuation of intangible assets. The strategies were described in 19 programs mapped on a strategy roadmap of transfer of technology on commercialization rice variety invented by IAARD.
Mempercepat Perkecambahan Benih Asam Jawa (Tamarindus indica Linn) Menggunakan Metode Perendaman Lince Romauli Panataria; Chichi J. Manalu; Efbertias Sitorus
Jurnal Penelitian Pertanian Terapan Vol 22 No 1 (2022)
Publisher : Politeknik Negeri Lampung.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25181/jppt.v22i1.2097

Abstract

ABSTRACT Tamarind constitutes orthodox seed which is impermeable to water so that it is difficult to be penetrated by water in its imbibitions process. Consequently, the seeds have longer dormancy time so that special treatment is needed to accelerate its seed development. This research was done by soaking the seeds in the PGPR solution with the concentration and the soaking duration which are different from the purpose in order to accelerate the tamarind seed germination of the tamarind. The research used RAL (complete random sampling) consisted of soaking time (L) – L1: 2 hours, L2: 4 hours, L3: 6 hours, and PGPR concentration (P) which was Po; without PGPR concentration (control), P1: 10 ml/L of water, P2: 20 ml/L of water, and P3: 30 ml/L of water. The combination of treatment was 12 combinations, and each of them was repeated 3 times. The tamarind seeds were soaked according to the treatment, dried up, and germinated. The result of the research showed that germinating the seeds in 6 hours with PGPR concentration of 30 ml/L of water could accelerate the seeds until 4 days, 100% of sprouting power, 2.5% of vigor index, and 1% of germination rate. Keywords: Tamarind, PGPR, Seed Soaking
PENYEDIAAN PAKAN SILASE DARI TANAMAN UBIJALAR DALAM MENUNJANG SISTEM PERTANIAN BERKELANJUTAN Reza Prakoso Dwi Julianto; Edyson Indawan; Sri Umi Lestari; Poppy Indri Hastuti
Jurnal Penelitian Pertanian Terapan Vol 22 No 1 (2022)
Publisher : Politeknik Negeri Lampung.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25181/jppt.v22i1.2120

Abstract

The study aims to evaluate the response sweet potato clones by pruning to tuber production and silage making experiments. In the field using Split Plot design with 3 replays. Sweet potato clones are placed as plots and pruning periods as the main plot. V₁: Kuningan Putih, V₂: Beta-2, V₃: Kuningan Merah, V₄: BIS-OP-61, V₅: 73-OP-5, V₆: BIS-OP-61-♀-29, V₇: BIS-OP-61-OP-22. The clone sweet potato consists of trimming period ages 90 dap, 120 dap and 150 dap. The result of trimming stroge is then preserved in the form of silage. Silage making as follows: each clons was cut to a size of 3-5 cm, then used to lower the moisture content. Storage is cut, weighed and added tubers according to treatment is: S1= 100% storage, S2 = 90% storage + 10% tubers, S3= 80% storage + 20% tubers, S₄ = 70% storage + 30% tubers. The nutritional value composition of sweet potato silage has of DM 7.07-23.33%, OM 78.04-91.45%, ash 8.57-21.96%, CP 6.90-16.14%,and CF 17.87-57.57% based on dry materials. The value of sweet potato silage of DMD 42.36-63.71%, OMD 38.85-63.64% and TDN 33.24-56.54%.
Formulasi Inokulan Padat Bakteri Tanah yang Menguntungkan sebagai Pengendali Nematoda pada Tanaman Kopi Reginawanti Hindersah; Iis Nur Asyiah; Rita Harni; Dwi Suci Rahayu; Betty Natalie Fitriatin
Jurnal Penelitian Pertanian Terapan Vol 22 No 1 (2022)
Publisher : Politeknik Negeri Lampung.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25181/jppt.v22i1.2126

Abstract

Plant Growth Promoting Rhizobacteria Pseudomonas and Bacillus are well known biofertilizer due to their ability for solubilizing inorganic phosphate and producing phytohormones in soil. However, their potential to decreased diseases incidence caused by Pratylenchus coffeae has been documented. The objective of this laboratory experiment was to formulate solid biofertilizer contained Pseudomonas diminuta and Bacillus subtilis. The laboratory experiments consisted of three-step experiment: 1) selection of the molasses-based liquid media for P. diminuta and B. subtilis growth, 2) organic liquid inoculant formulation and 3) organic carrier-based inoculant formulation. The population of both bacteria in all steps was count by serial dilution plate method with specific medium. The result verifeid that cell density of P. diminuta and B. subtilis in liquid culture with 2% molasses were higher than cell count in the culture contained 4% molasses. Bagasse-based carrier inoculated with liquid culture of mixed bacteria has higher bacterial count compared to manure-based carrier. After 90-day incubation, bagasse-based solid inoculant maintained P. diminuta and B. subtilis density up to 108 CFU/mL and the acidity of solid inculaant was about neutral. The bacterial count and acidity of solid inoculant agreed with Indonesian standard for solid biofertilizer
KOMPARASI RISIKO PRODUKSI DAN PENDAPATAN USAHATANI KOPI ORGANIK DAN AN ORGANIK: (Suatu Kasus di Desa Margamulya, Kecamatan Pangalengan, Kabupaten Bandung) Tuti Karyani; R. Az-Zahra S; E. Djuwendah; E. Supriyani R
Jurnal Penelitian Pertanian Terapan Vol 22 No 1 (2022)
Publisher : Politeknik Negeri Lampung.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25181/jppt.v22i1.2155

Abstract

Changes in consumer lifestyle have led to an increasing demand of organic products. The government supports the growth of the organic-product trend by establishing 1000 organic-farming village program. The transformation of farming method from the conventional (inorganic) one to the organic one certainly imposes risks that need to be considered. This study aims to analyze the differences of production risks and income risk between organic and inorganic coffee farmers. The research was conducted in Margamulya Village, Pangalengan District, West Java, which was purposively chosen because Margamulya Village is the center of coffee production in West Java and is one of the villages selected in the 1000 organic-farming-village program. The samples used in this study amounted to 56 respondents, which consisted of 28 organic farmers and 28 conventional farmers that were obtained through Slovin’s formula and selected by simple random method. The method used in this research was comparative quantitative research method. The data were analyzed using comparative analysis by coefficient comparison analysis of production risks and income risks. The results show that the production risks and income risks of inorganic coffee farmers are higher than those of organic farmers. Keywords: Organic Coffee, Production Risks, Income Risks
English English: Indonesia Fitriani Fitriani; Bustanul Arifin; Fembruari Erry Prasmatiwi; R Hanung Ismono; Dyah Aring Hepiana Lestari; Sutarni Sutarni; Didik Kuswadi
Jurnal Penelitian Pertanian Terapan Vol 22 No 1 (2022)
Publisher : Politeknik Negeri Lampung.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25181/jppt.v22i1.2174

Abstract

This study conducted to analysis the unsustainable risk of coffee farming based on the farmer’s perspective. The field survey set with questioner as a tool in exploring the farmers’ condition. The method of analysis applied Chi-square and regression model. The results indicated that coffee farmer’s perspectives on risk significantly differ based on the education level. Environment risk conditions referred to land degradation, decrease water quality, and water shortage, biodiversity loss, and global warming impact. The economics risk referred to land certainty and decrease of yield (failure). On the other side, the coffee farming income has determined by land area, a number of coffee trees, land tenure, and the participation in the certification scheme.

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