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All Journal Biota: Jurnal Ilmiah Ilmu-Ilmu Hayati Lokawati: Jurnal Penelitian Manajemen dan Inovasi Riset
Niken Handayani
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Decision Sciences, Operations Research & Management Economics, Econometrics & Finance

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Uji Patogenisitas Isolat Bakteri Indigenous (Bacillus thuringiensis) terhadap Serangga Hama Kubis (Crocidolomia binotalis Zell) Christina L. Salaki; Jesmandt Situmorang; Langkah Sembiring; Niken Handayani
Biota : Jurnal Ilmiah Ilmu-Ilmu Hayati Vol 14, No 3 (2009): October 2009
Publisher : Universitas Atma Jaya Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24002/biota.v14i3.2582

Abstract

Pathogenicity of 34 indigenous B. thuringiensis isolates against C. binotalis were determined. The pathogenicity test was conducted by using leaf dipped method with various spore concentrations. Third instar larvae of C. binotalis were used as insect test. Mortality data of test larvae were used to determine the pathogenicity of the isolates in terms of 72 hours LC50 by using probit analysis. The results of experiments showed YPPA 1. was the most pathogenic isolate, producing 72 hours LC50 = 9.5 x 103 spore.ml-1 with LT50 (1.5 x 107 spore.ml-1) of 24.6 hours while the ACH 2.3 was found to be the least pathogenic isolate with 72 hours LC50 = 2.3 x 106 spore.ml-1 and LT50 (1.5 x 107 spoore.ml-1) of 40.7 hours. The shortest LT50 (1.5 x 107 spore.ml-1 was found to be 18.2 hours produced by TUS.1 with 72 hours LC50 = 3.9 x 105 spore.ml-1 whereas the longest LT50 (1.5 x 107 spore.ml-1) was found tobe 83.2 hours produced by the SLK 4.1 with 72 hours LC50 = 3.1 x 104 spore.ml-1. Therefore, it can be concluded that both YPPA.1 and TUS.1 isolates are potential candidate to be developed for biological control agent.
Analisis Keanekaragaman Isolat Bacillus thuringiensis yang Patogenik terhadap Serangga Hama Kubis (Crocidolomia binotalis) dengan Pendekatan Sistematika Numerik Christina L. Salaki; Jesmandt Situmorang; Langkah Sembiring; Niken Handayani
Biota : Jurnal Ilmiah Ilmu-Ilmu Hayati Vol 15, No 3 (2010): October 2010
Publisher : Universitas Atma Jaya Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24002/biota.v15i3.2605

Abstract

Diversity of B. thuringiensis (Bt.) isolates pathogenic to C. binotalis was determined by using Numerical Systematic Method. Ten isolates were taken to represent 34 pathogenic isolates along with two reference strains namely B. thuringiensis serovar kurstaki and B. thuringiensis serovar israelensis. The test isolates were examined for 89 phenotypic characters by using convensional method for colonial and cell morphology (37 characters) as well as physiological characteristics (3 characters) but biochemical characterization (49 characters) was conducted by using commercial API-50 CHB procedures. All phenotypic characters existed in one of two mutually exclusive states and were either scored plus (1) of minus (0). The binary data were prepared in Programmer’s File Editor (PFE) software. The data then were analysed by using the Multi Variate statistical Package (MVSP) Plus-Version 3.1 using the Simple Matching Coefficient (SSM). Clustering was achieved using the UPGMA algorithm. The results were presented as dendrograms. It was obtained that the test isolates were clearly assigned to two distinct multimembered clusters defined by 79.6 similarity level (S-level) in the SSM, UPGMA analysis. The two distinct clusters represented by each of two widely known different group of Bt. strains, namely serovar israelensis and serovar kurstaki. The first cluster contained reference strain of B. thuringiensis serovar israelensis, and two of the isolates (Slk2.3, and YPPA1) and the second cluster contained another reference strain of B. thuringiensis serovar kurstaki, and 8 of the isolates. Therefore, it strongly suggested that the application of numerical-fenetic analysis could provide a tool to unravel the strain diversity belong to B. thuringiensis.
Pengaruh Kepribadian, Kecerdasan Emosional dan Motivasi Terhadap Kinerja Driver Go Food Menurut Persepektif Bisnis Islam : (Studi Pada Driver Go Food di Bandar Lampung) Fatih Fuadi; Adib Fachri; Niken Handayani
Lokawati : Jurnal Penelitian Manajemen dan Inovasi Riset Vol. 2 No. 4 (2024): Juli : Jurnal Penelitian Manajemen dan Inovasi Riset
Publisher : Asosiasi Riset Ilmu Manajemen Kewirausahaan dan Bisnis Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61132/lokawati.v2i4.970

Abstract

Transportation makes it easier for people to carry out their daily activities. Transportation is really needed by the community, considering the density of people's activities which require moving from one place to another and also makes it easier for people to order the goods or food they want from a place that consumers want. Therefore, drivers with personality, emotional intelligence and good motivation are needed, where there is a decline in the performance of gofood drivers, one of which is the gofood driver in Bandar Lampung. This research aims to examine the influence of Personality, Emotional Intelligence, and Motivation on the Performance of Gofood Drivers in Bandar Lampung City from an Islamic Business Perspective. This research used a quantitative approach with a sample of 98 gofood drivers in Bandar Lampung. Sampling was carried out using an associative approach which connects one variable to another variable. The data analysis method uses SPSS (Statistical Program for Social Science) version 20 and then the data obtained is processed using SPSS 20 software. Data analysis in this research uses multiple linear regression analysis with Personality, Emotional Intelligence and Motivation as independent variables and performance as the dependent variable .Based on the research results, it shows that personality does not have a significant effect on the performance of Gofood drivers. Emotional Intelligence also has no significant effect on Gofood driver performance. Motivation has a positive and significant influence on Gofood driver performance. However, personality, emotional intelligence and motivation simultaneously have a significant effect on the performance of gofood drivers in Bandar Lampung City.
Co-Authors Adib Fachri Christina Salaki Fatih Fuadi Jesmandt Situmorang Langkah Sembiring