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All Journal Jurnal Ilmu Pertanian jurnal Ilmu Pertanian (Agricultural Science) Kibas Cenderawasih : Jurnal Ilmiah Kebahasaan dan Kesastraan
Fatmawati, Aprilia
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Agriculture, Biological Sciences & Forestry Arts Humanities Languange, Linguistic, Communication & Media

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Kesantunan Berbahasa Pelayan dan Pelanggan di Indomaret (TNSD) Kartasura: Politeness in the Language of Waiters and Pelanggans at Indomaret (TNSD) Kartasura Fatmawati, Aprilia; Pramesti, Nesgi Septian; Istiqomah, Nurul; Bachtiar, Ryko Muhammad; Putri, Tariska Eka
Kibas Cenderawasih Vol. 21 No. 1 (2024): Kibas Cenderawasih, April 2024
Publisher : Balai Bahasa Provinsi Papua

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26499/kc.v21i1.432

Abstract

The purpose of this research is to find out and describe the language politeness used by Indomart Kartasura waiters towards customers. The research method used is a descriptive qualitative method, the researcher made direct observations at Indomart Kartasura. The techniques used in qualitative data analysis are divided into four stages of data collection, namely (1) data collection, (2) data reduction, (3) data presentation, and (4) drawing conclusions. In analyzing the research data, the following steps were taken (1) collecting data in the form of conversations; (2) record and sort the data that has been obtained; (3) write down the selected data; (4) describe the data that has been selected, and (5) summarize the results of the analysis. Based on the research carried out, seven data on the principles of language politeness according to Grice were obtained by Indomart waiters. This data, among other things, fulfills the principles of conveying information, requesting information, refusing, expressing feelings, conveying a request, asking for reaffirmation, and saying thank you. This politeness in language occurs because Indomart Kartasura employees are obliged to be friendly towards customers at work.
Improving Phosphate-Solubilizing Rhizobacteria Strains via Mutation to Enhance Phosphorus Availability in Acidic Soils Nugroho, Adin Heriyan; Putri, Faizzah Kahfi; Sya'diyah, Hamda Hamidatu; Fatmawati, Aprilia; Ghiffar, Hafidho Muntazul; Oktaviani, Eka
Jurnal Ilmu Pertanian Vol 11, No 1 (2026): April
Publisher : Faculty of Agriculture, Universitas Gadjah Mada jointly with PISPI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/ipas.111550

Abstract

Acid-dry land is a suboptimal land area widely distributed in Indonesia, which has the potential to be developed as cropland to increase crop productivity. However, the low phosphorus availability in this land type often constrains plant growth, necessitating the use of microbial phosphate-solubilizing agents. To address this, the capability of the isolated rhizobacteria strain in phosphate solubilization was improved through a mutagenesis by Ethyl Methane Sulphonate (EMS). Three isolates of indigenous wild-type rhizobacteria of acid-dry land were isolated from cardamom, lemon grass, and bamboo rhizosphere. Mutagenesis of these wild-types yielded three mutant isolates, including KPG_m, SRH_m, and BMB_m, which exhibited higher Phosphate-Solubilization Indices (PSI) compared to their parental strains. The PSI values for the mutants were 2.2, 3.4, and 2.0, respectively, showing a marked improvement over the wild-type values of 2.0, 1.75, and 1.25. These results indicate an enhancement in phosphate-solubilizing ability driven by EMS mutagenesis. All the isolates were then characterized and showed similar traits to those of the Genus of Bacillus. According to the hypersensitive reaction assay, the six isolates showed a negative reaction, indicating they are non-pathogenic. Based on these findings, the mutants have the potential to be developed as biofertilizer agents due to they are non-pathogenic for plants. In addition, the mutants have a moderate PSI value (2<PSI<4) and effective solubilization rate that may improve phosphate solubilization process in acid-dry land.
Improving Phosphate-Solubilizing Rhizobacteria Strains via Mutation to Enhance Phosphorus Availability in Acidic Soils Nugroho, Adin Heriyan; Putri, Faizzah Kahfi; Sya'diyah, Hamda Hamidatu; Fatmawati, Aprilia; Ghiffar, Hafidho Muntazul; Oktaviani, Eka
Jurnal Ilmu Pertanian Vol 11, No 1 (2026): April
Publisher : Faculty of Agriculture, Universitas Gadjah Mada jointly with PISPI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/ipas.111550

Abstract

Acid-dry land is a suboptimal land area widely distributed in Indonesia, which has the potential to be developed as cropland to increase crop productivity. However, the low phosphorus availability in this land type often constrains plant growth, necessitating the use of microbial phosphate-solubilizing agents. To address this, the capability of the isolated rhizobacteria strain in phosphate solubilization was improved through a mutagenesis by Ethyl Methane Sulphonate (EMS). Three isolates of indigenous wild-type rhizobacteria of acid-dry land were isolated from cardamom, lemon grass, and bamboo rhizosphere. Mutagenesis of these wild-types yielded three mutant isolates, including KPG_m, SRH_m, and BMB_m, which exhibited higher Phosphate-Solubilization Indices (PSI) compared to their parental strains. The PSI values for the mutants were 2.2, 3.4, and 2.0, respectively, showing a marked improvement over the wild-type values of 2.0, 1.75, and 1.25. These results indicate an enhancement in phosphate-solubilizing ability driven by EMS mutagenesis. All the isolates were then characterized and showed similar traits to those of the Genus of Bacillus. According to the hypersensitive reaction assay, the six isolates showed a negative reaction, indicating they are non-pathogenic. Based on these findings, the mutants have the potential to be developed as biofertilizer agents due to they are non-pathogenic for plants. In addition, the mutants have a moderate PSI value (2<PSI<4) and effective solubilization rate that may improve phosphate solubilization process in acid-dry land.
Co-Authors Bachtiar, Ryko Muhammad Eka Oktaviani Ghiffar, Hafidho Muntazul Nugroho, Adin Heriyan Nurul Istiqomah Pramesti, Nesgi Septian Putri, Faizzah Kahfi Putri, Tariska Eka Sya'diyah, Hamda Hamidatu