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All Journal Bioscientist : Jurnal Ilmiah Biologi
Iwan Doddy Dharmawibawa
Program Studi Pendidikan Dokter Hewan, Fakultas Kedokteran Hewan, Universitas Pendidikan Mandalika, Jalan Pemuda Nomor 59A, Mataram, Nusa Tenggara Barat 83125
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Education Immunology & microbiology Social Sciences

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Uji Pemberian Pupuk Organik Cair Fermentasi Daun Gamal terhadap Pertumbuhan Tanaman Sawi (Brassica juncea L.) sebagai Panduan Lembar Kerja Mahasiswa Taufik Taufik; Iwan Doddy Dharmawibawa; Masiah Masiah
Bioscientist : Jurnal Ilmiah Biologi Vol 11, No 2 (2023): December
Publisher : Department of Biology Education, FSTT, Mandalika University of Education, Indonesia.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33394/bioscientist.v11i2.8562

Abstract

Liquid organic fertilizer from gamal leaves contains the nutrients N, P, K, Ca and Mg which are useful in plant growth and vegetative development. This research aims to determine the effect of the best dose of gamal leaf liquid organic fertilizer in increasing the growth of mustard greens (Brassica juncea L.). This type of research is a pure experiment using a Completely Randomized Design (CRD), which consists of 5 dose treatments, namely P0 0 ml/l water, P1 30 ml/l water, P2 60 ml/l water, P3 90 ml/l water, and P4 130 ml/l water. Each treatment was repeated 5 times. The parameters observed were plant height, number of leaves, and leaf width. Next, the data was analyzed using One Way ANOVA 5%. The results of the research showed that the best dose of gamal leaf liquid organic fertilizer was in the 130 ml/l treatment, namely the highest plant height was 21.50 cm, the largest number of leaves was 11.8, and the largest leaf width was 10.20 cm. The significant value of the 5% ANOVA test results is 0.000. There is a significant value, namely P < 0.05, so gamal leaf liquid fertilizer has a significant effect on each dose of gamal leaf liquid fertilizer on the vegetative growth of mustard greens. The results of the validation analysis of Student Worksheets (LKM) showed that from the three expert validators, an average validation result of 82% was obtained with very good qualifications, and was declared suitable for use as a LKM guide in plant physiology courses.
Pengembangan Bahan Ajar Biologi Berbasis Jelajah Alam Sekitar (JAS) Berorientasi pada Keterampilan Proses Sains Siswa dan Hasil Belajar Siswa Kelas X SMA Ida Royani; Ali Imran; Iwan Doddy Dharmawibawa
Bioscientist : Jurnal Ilmiah Biologi Vol 11, No 2 (2023): December
Publisher : Department of Biology Education, FSTT, Mandalika University of Education, Indonesia.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33394/bioscientist.v11i2.9713

Abstract

The aim of the research is to determine the validity, practicality and effectiveness of the use of Environmental Exploration (EE)-based biology teaching materials which are oriented towards science process skills and learning outcomes for class X students at SMA Al-Hamzar Tembeng Putik, East Lombok Regency. The background of this research is the lack of direct use of learning resources from nature, learning resources only come from books provided by the school. The subjects in this research were class Xc students. The type of research carried out is Development Research (DR). The results of content feasibility validation obtained an average value of 3.08 in the valid category. Validation on the presentation aspect obtained an average of 3.21 which is included in the valid category. Validation on the language aspect obtained an average of 2.88, including the valid category. Judging from the graphic aspect, an average of 3 is found to be in the valid category. If the validity index is averaged, overall the aspects assessed at 3.04 are categorized as valid with an increase in children's learning outcomes in terms of students' attitudes, knowledge and science process skills. The conclusion of this research is that biology teaching materials in the form of Environmental Exploration (EE) based modules are declared valid and can be used as biology teaching materials in class experiment, measure, draw conclusions, and communicate the learning outcomes of class X students at SMA Al-Hamzar Tembeng Putik, East Lombok Regency.
Co-Authors Ali Imran Ida Royani Masiah Masiah Taufik Taufik