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Ida Royani
Program Studi Pendidikan Biologi FPMIPA IKIP Mataram
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Education Immunology & microbiology Social Sciences

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REGENERASI TUNAS DAN AKAR DARI KALUS DAUN KACANG TANAH (Arachis hypogaea L.) VARIETAS KELINCI DENGAN KOMBINASI 2,4-D DAN BAP Ida Royani; Lalu Zulkifili; Prapti Sedijani
Bioscientist : Jurnal Ilmiah Biologi Vol 3, No 1 (2015): June
Publisher : Department of Biology Education, FSTT, Mandalika University of Education, Indonesia.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33394/bjib.v3i1.1335

Abstract

This is aimed todeterminethe effect of 2,4-D and BAP onshoot regeneration of peanut (Arachis hypogaea L.) Kelinci variety. This research was conducted in tissue culture laboratory of BBI-PPH Narmada. Competely randomized design (CDR) was applied on this rescarch which involved 2 factorial concentration of (0-4 mg/L) 2,4-D and (0-2 mg/L) BAP for both shoot regeneration on MS medium speed of the emerging shoots, number of shoots, theroots appear, and the amount ofroots. Statistical analysis showed that 2,4-D and BAP affect the speed of the emerging shoots, number of shoots, rootsand the number of days appear roots, and there is the effect of the combination of 2,4-D and BAP. Fastest emerging shoots obtained on MS medium with the addition of 2mg/LBAP with an average of 90.33days and the highest number of shoots contained on MS medium with the addition of 1mg/LBAP with an average of 4.33 shoots. While the earliest root formation was found on MS medium with the addition of 1mg/L2,4-D.
PENGARUH MODEL PEMBELAJARAN KOOPERATIF TIPE TGT TERHADAP KEMAMPUAN BERPIKIR KRITIS SISWA Evi Kurniawati Anwar; Hunaepi Hunaepi; Ida Royani
Bioscientist : Jurnal Ilmiah Biologi Vol 3, No 1 (2015): June
Publisher : Department of Biology Education, FSTT, Mandalika University of Education, Indonesia.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33394/bjib.v3i1.1338

Abstract

The formulation the problem asked in this study is “is there any significant influence of cooperative TGT learning model towards students’ critical thinking ability?” Meanwhile, this research is aimed to know whether or not there is any significant influence of cooperative TGT learning model towards students’ critical thinking ability.  The type of the research in this study is experimental research in which the researcher uses nonequivalent control group design. The population of the study is the whole number of the VII grade students of SMPN SATAP 1 Wanasaba. The researcher takes the two classes as the sample of the study; those two classes are VIIA as the experimental group and the VIIB as the control group of the study. The result of data analysis in this study show the result that the result gained by the students before having the treatment is lower than students’ score after having the treatment. The result of t-calculation shows that the t-test is 0.678 and the value of t-table at the significance level 5% is 1.679. Based on the result of data analysis, it can be inferred that the t-test is higher than the value of t-table which means that the alternative hypothesis is accepted and the null hypothesis is rejected. Thus, the study concluded that there is any significant influence of cooperative TGT learning model towards students’ critical thinking ability.
Co-Authors Evi Kurniawati Anwar Hunaepi, Hunaepi Lalu Zulkifili Prapti Sedijani