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All Journal Biota: Jurnal Ilmiah Ilmu-Ilmu Hayati Indonesian Journal Of Educational Research and Review
Lavenia, Jovita
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Education

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Utilization of Used Cardboard and Vegetable Waste as Growth Media for White Oyster Mushroom (Pleurotus ostreatus) Lavenia, Jovita; Prasetyaningsih, Aniek; Ariestanti, Catarina Aprilia
Biota : Jurnal Ilmiah Ilmu-Ilmu Hayati Vol 6, No 2 (2021): June 2021
Publisher : Universitas Atma Jaya Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24002/biota.v6i2.4278

Abstract

White oyster mushroom (Pleurotus ostreatus) is a highly nutritious food with simple cultivation process using sawdust as its main substrate. Nowadays, availability of sawdust become a problem for some mushroom farmers. Cardboard and vegetable wastes are easily found and difficult to maintain. Based on their characteristics, those wastes can be used as mushroom growth media. This study aims to determine the effect of cardboard and vegetable waste on mushroom growth and the best media composition to obtain maximum productivity. Those wastes are used as the main substrate in eleven composition variations with complete randomized design (CRD) analysis method using One-Way ANOVA and simple linear regression statistical test. The results showed, variations in media composition affect the condition of the media which then influence the growth of P. ostreatus. Maximum productivity was found in media composition XI with mycelium growth rate up to 3.91 cm/day, media IX with the biological efficiency up to 45.38%, and media X with the highest total yield up to 97.28 grams. From this study it can be concluded that cardboard and vegetable waste can be an alternative growth substrate for P. ostreatus in urban areas with a maximum concentration of vegetable waste no more than 30% by weight of the media used.
Face-to-Face Instruction and Blended Learning Related to Students’ Commitment in Science Courses Lavenia, Jovita; Tiarani, Vinta
Indonesian Journal of Educational Research and Review Vol. 6 No. 3: October 2023
Publisher : Universitas Pendidikan Ganesha

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23887/ijerr.v6i3.67182

Abstract

Changes in instructional modes that have occurred can trigger various perceptions and different learning commitments, especially in lectures that are identic to perform hands-on science, such as science courses. This study aims to analyze students’ perceptions of blended learning and face-to-face modes in science courses related to learning commitment after the Covid-19 pandemic. Using phenomenological method, the research was conducted with six students as participants. The data was collected by interview, observation, and documentation techniques. Triangulation was used to validate the data, while a data analysis technique is using Miles and Huberman. The results show that there are differences in students' perceptions and commitments in science courses with both learning modes. Students tend to perceive face-to-face learning more positively than blended learning because activities perform more interactively. Students’ commitments are better during face-to-face learning than during blended learning. Based on the results, this study concludes that positive perceptions shape better learning commitments than negative perceptions.
Co-Authors Aniek Prasetyaningsih Catarina Aprilia Ariestanti Tiarani, Vinta