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All Journal Primary: Jurnal Pendidikan Guru Sekolah Dasar BERITA BIOLOGI Berkala Penelitian Hayati
Dwi Setyo Rini
Botany Division, Research Center For Biology, Indonesian Institute Of Sciences (LIPI), Indonesia
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Education Immunology & microbiology Materials Science & Nanotechnology Medicine & Pharmacology Other

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RESPON PERKECAMBAHAN BENIH SORGUM {Sorghum bicolor (L.) Moench} TERHADAP PERLAKUAN OSMOCONDITIONING DALAM MENGATASI CEKAMAN SALINITAS Dwi Setyo Rini; Mustikoweni Mustikoweni; Surtiningsih T
BERITA BIOLOGI Vol 7, No 6 (2005)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v7i6.865

Abstract

The research was undertaken in two experiments. The first experiment was carried out to find out the germination capacity and vigor of sorghum seeds that consisted of four varieties namely Rio, Mandau, Sangkur and Keris. The second experiment was to determine the response of two sorghum varieties which had good germination capacities and so vigorous from the first experiment by osmoconditioning treatments. The growth media is saline soil with NaCl content 8.61% and pH 8.2. The osmoconditioning treatments were soaking seeds in each Na,SO4 0.2 M, NH4C1 0.2 M, KNO3 0.2 M solution for 48 hours and untreated sorghum seeds served as the control. The results showed that there was no interaction between varieties of sorghum seeds and osmoconditioning treatments on germination percentage but osmoconditioning treatments with Na,SO4 0.2 M and NH4C1 0.2 M could promote germination percentage of sorghum seeds on saline condition.
MEKANISME RESPON TANAMAN TERHADAP CEKAMAN KEKERINGAN Dwi Setyo Rini; Budiarjo Budiarjo; Indra Gunawan; Radi Hidayat Agung; Rina Munazar
BERITA BIOLOGI Vol 19, No 3B (2020)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v19i3B.4025

Abstract

Drought stress is the major abiotic stress affecting plant growth and productivity. This review emphasizes the discussion of plant response mechanisms when experiencing drought stress. The plant develops the strategies under water deficit conditions in the form of drought escape, drought avoidance, drought tolerance, or a combination of those strategies. Drought stimulates a wide variety of plant adaptation by changes in morphological, physiological, biochemical, and molecular levels. This mechanism is organized by a complex signaling network system comprising of signal perception, signal transduction pathway, and the regulation of drought-responsive genes expression.   
PENGKAJIAN BERBAGAI KONSENTRASI RAGI ROTI UNTUK PERTUMBUHAN PLANLET TEBU Saccharum spp var PS 61 IN VITRO Edy Setiti Wida Utami; Dwi Setyo Rini; Eka Sugiyarta
JURNAL PENELITIAN BIOLOGI BERKALA PENELITIAN HAYATI Vol 6 No 2 (2001): June 2001
Publisher : The East Java Biological Society

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23869/499

Abstract

This experiment was expect for the find of alternative substitution of dalapon’s herbicide, its have active materials as 2,2 dichloropropionat acid. The fuction of dichloropropionat is very important on the differentiation and growing of sugarcane plantlet. The purpose of the research was to know the effect some concentration of Baker’s yeast that consist Saccharomyces cereviceae to growth of sugarcane (Saccharum spp) var PS61 plantlet. This experiment was arranged in a Completely Randomized Design with eight treatments and four replications. The treatment were: (K) control; (Po) without dalapon’s herbicide and Baker’s yeast; (0.25 g/l) medium; Bakers yeast 0.5 g/l medium; (P0.75) g/l medium; (P1.0) Baker’s yeast 1.0 g/l medium; (P1.25) Baker’s yeast 1.25 g/l medium; (P1.5) Baker’s yeast 1.5 g/l medium. The observation was done by destruction of the media every two weeks until the twelve weeks to the height of shoots, and length of primary roots. The result of this experiment showed that the application of Baker’s yeast media could be increasing the heigh of shoots and the length of primary roots. Concentration of Baker’s yeast that the suitable for growing of the sugarcane plantlet is 0.25 mg/l.
THE EFFECT OF PROBLEM BASED LEARNING MODEL AND DISCOVERY LEARNING TOWARD PROBLEM SOLVING SKILLS IN MATHEMATIC OF GRADE 5 ELEMENTARY Dwi Setyo Rini; Wasitohadi
Primary: Jurnal Pendidikan Guru Sekolah Dasar Vol. 9 No. 2 (2020): April
Publisher : Laboratorium Program Studi Pendidikan Guru Sekolah Dasar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33578/jpfkip.v9i2.7890

Abstract

The purpose of this research is to know about implementation of influence PBL and DL model to Mathematic Problem Solving for 5th grade student at elementary school. The type of this research was Quasy Experiment. The result of prerequisite test by using SPSS 25 for windows showed that the data was distributed in normal and homogeny. The independent sample test result showed the significant 0.000 < 0.05 that meant Hₒ was rejected and Hₐ was accepted. Based on the result obtained, there are significance difference in the implementation between PBL and DL models toward Mathematic Problem Solving ability in 5th grader elementary school students, and there was a significant difference of improvement toward Mathematic problem solving ability in 5th grade elementary school students which can be seen from the comparison of diagram that using PBL had more influence with pretest result 69% and posttest 80%, while using DL model result pretest 66% and posttest 73%.
Co-Authors Agwin Fahmi Fahanani Aurick Yudha Nagara Budiarjo Budiarjo Djanggan Sargowo Djanggan Sargowo Edy Setiti Wida Utami Eka Sugiyarta Indra Gunawan Jannatul Arviani Mohammad Fahri Ferdiansyah Monifa Arini Mustikoweni Mustikoweni Nabila Nur Fitriani Nurma Afiani Nurma Afiani Radi Hidayat Agung Raghnal Arradya Pratama Rina Munazar Sevito Fernanda Pambudi Surtiningsih T Wasitohadi