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Pertumbuhan Kalus Rejasa (Elaeocarpus grandiflorus) dari Eksplan Tangkai Daun pada Kondisi Gelap

Life Science · Vol. 8 No. 1 (2019) · pp. 17–24

DOI
10.15294/lifesci.v8i1.29986
ISSN
2528-5009, 2252-6277
Published
2019-04-25
Publisher
Universitas Negeri Semarang
Language
eng

Abstract

Rejasa (Elaeocarpus grandiflorus) is a Salatiga identity plant which is now rarely found. Rejasa produces secondary metabolites that have the potential as drugs. This study tested the growth of rejasa callus in the medium with the addition of various types and concentrations of growth regulators. The independent variables used were the type and concentration of growth regulators (2,4-dichlorophenoxyacetic acid (2,4-D) with concentrations of 1.5; 2.5 and 3.5 ppm and Picloram with a concentration of 3.5; 5; and 7.5 ppm). The dependent variable in this study was the growth of callus regeneration (percentage of callus growth, time of callus formation and morphology of callus) observed for five months in dark conditions. Explants used were young petiolus and the medium used in this study was medium Murashige and Skoog (MS). The results showed the lowest percentage of callus induction was found in explants with the addition of Picloram growth regulators with a concentration of 7.5 ppm (14%). Explants maintained in the medium with the addition of Picloram with a concentration of 5 ppm resulted in the highest percentage of callus induction. The time of callus induction is in the range of 10-22 days. The explants with the addition of Picloram growth regulator substances with a concentration of 5 ppm had the best callus induction time, which was 12 days. Most of the callus formed was friable and yellowish. Based on the results of this research, the best medium for callus induction of rejasa in dark conditions was medium with the addition of 5 ppm Picloram. Rejasa (Elaeocarpus grandiflorus) adalah tanaman identitas Salatiga yang mulai jarang ditemukan. Pertumbuhan populasinya memiliki perkembangan yang lambat. Perkembangan generatif melalui perkecambahan biji terjadi dalam tingkat yang sangat rendah. Dalam kelangkaannya, rejasa memiliki khasiat sebagai tanaman obat melalui metabolit sekunder yang dihasilkan. Penelitian ini menguji pertumbuhan kalus rejasa dalam variasi jenis dan konsentrasi zat pengatur tumbuh. Variabel bebas yang digunakan adalah jenis dan konsentrasi zat pengatur tumbuh (2,4-dichlorophenoxyacetic acid (2,4-D) dengan konsentrasi 1,5; 2,5; dan 3,5 ppm serta pikloram dengan konsentrasi 3,5; 5; dan 7,5 ppm). Variabel terikat dalam penelitian ini adalah pertumbuhan kalus rejasa (persentase tumbuh kalus, waktu berkalus, dan morfologi kalus) dalam medium yang diamati selama 5 bulan. Eksplan yang digunakan adalah tangkai muda yang ditanam dalam medium agar Murashige & Skoog dengan penambahan zat pengatur tumbuh 2,4-D dan pikloram dalam berbagai konsentrasi dan dipelihara dalam kondisi gelap. Hasil penelitian menunjukkan persentase induksi kalus paling rendah terdapat pada eksplan dengan penambahan zat pengatur tumbuh pikloram dengan konsentrasi 7,5 ppm (14%). Eksplan yang dipelihara pada medium dengan penambahan pikloram konsentrasi 5 ppm memghasilkan persentasi induksi kalus tertinggi. Waktu induksi kalus berada dalam rentang 10-22 hari. Eksplan dengan penambahan zat pengatur tumbuh pikloram konsentrasi 5 ppm memiliki rerata waktu induksi kalus paling baik yaitu 12 hari. Kalus yang terbentuk dominan berwarna kekuningan dengan jenis meremah. Berdasarkan hasil penelitiaan, medium yang paling baik untuk induksi kalus dalam kondisi gelap adalah medium MS dengan penambahan zat pengatur tumbuh pikloram konsentrasi 5 ppm.

Collaboration network of the authors

40 authors · 108 co-authorship links · 2 across different organisations · showing the 40 most connected

Hover or tap a name to highlight its co-authors. Double-click to open the author's page.

  • State University of Semarang
  • Universitas Sumatera Utara
  • Diponegoro University
  • Affiliation unknown
  • Different organisations
  • Same organisation
  • Affiliation unknown
  • Thicker line = more joint articles · bigger circle = more articles
Show as table
Co-authorOrganisationJoint articles
Pramesti DewiAffiliation unknown4
Enni Suwarsi RahayuState University of Semarang4
Dewi MustikaningtyasAffiliation unknown3
Sucihatiningsih Dian Wisika PrajantiState University of Semarang3
Amin RetnoningsihAffiliation unknown3
Yustinus Ulung AnggraitoAffiliation unknown3
Siti Harnina BintariAffiliation unknown2
Edi KurniawanUniversitas Sumatera Utara2
Furzani Pa’eeAffiliation unknown2
Christina LitaayAffiliation unknown2
Sri NgabektiState University of Semarang2
Lina HerlinaDiponegoro University2
Sholihatur RohmahAffiliation unknown1
Fira Putri Nur AwwaliaAffiliation unknown1
Atiqah BahrunnisaAffiliation unknown1
Ghani WalandipaAffiliation unknown1
Nadya Audina Nurkhafiya SadikinAffiliation unknown1
Anisa Dewi Sri PuspitasariAffiliation unknown1
Adninta Husnu AmaliaAffiliation unknown1
Niken SubektiState University of Semarang1
Ning SetiatiAffiliation unknown1
Mutiarani Kartika DewiAffiliation unknown1
Tristiana Hidayatul WahidahAffiliation unknown1
Siti SulaihaAffiliation unknown1
Ely RudyatmiAffiliation unknown1
Reny RahayuAffiliation unknown1
Andin IrsadiState University of Semarang1
Nugroho Edi KartijonoState University of Semarang1
Afia Firna WahidaAffiliation unknown1
Nurul Huda Am Zen AriefAffiliation unknown1
Dinda MelatiAffiliation unknown1
Na Dame Maulibulung SinagaAffiliation unknown1
Ulfah Mediaty AriefState University of Semarang1
Delano Hafis AfdamAffiliation unknown1

Affiliations come from OpenAlex; journal OAI-PMH metadata carries none. Authors without an OpenAlex ID are matched by name, which can merge or split people.

Metadata source: OAI-PMH (metadata jurnal) https://journal.unnes.ac.id/sju/index.php/UnnesJLifeSci/oai, first harvested 5 Nov 2026, last seen 5 Nov 2026.
Original metadata (oai_dc)
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	<dc:title xml:lang="en-US">Pertumbuhan Kalus Rejasa (Elaeocarpus grandiflorus) dari Eksplan Tangkai Daun pada Kondisi Gelap</dc:title>
	<dc:creator>Wijawati, Nur</dc:creator>
	<dc:creator>Habibah, Noor Aini</dc:creator>
	<dc:creator>Musafa, Fajar</dc:creator>
	<dc:creator>Mukhtar, Khoirul</dc:creator>
	<dc:creator>Anggraito, Y. Ulung</dc:creator>
	<dc:creator>Widiatningrum, Talitha</dc:creator>
	<dc:description xml:lang="en-US">Rejasa (Elaeocarpus grandiflorus) is a Salatiga identity plant which is now rarely found. Rejasa produces secondary metabolites that have the potential as drugs. This study tested the growth of rejasa callus in the medium with the addition of various types and concentrations of growth regulators. The independent variables used were the type and concentration of growth regulators (2,4-dichlorophenoxyacetic acid (2,4-D) with concentrations of 1.5; 2.5 and 3.5 ppm and Picloram with a concentration of 3.5; 5; and 7.5 ppm). The dependent variable in this study was the growth of callus regeneration (percentage of callus growth, time of callus formation and morphology of callus) observed for five months in dark conditions. Explants used were young petiolus and the medium used in this study was medium Murashige and Skoog (MS). The results showed the lowest percentage of callus induction was found in explants with the addition of Picloram growth regulators with a concentration of 7.5 ppm (14%). Explants maintained in the medium with the addition of Picloram with a concentration of 5 ppm resulted in the highest percentage of callus induction. The time of callus induction is in the range of 10-22 days. The explants with the addition of Picloram growth regulator substances with a concentration of 5 ppm had the best callus induction time, which was 12 days. Most of the callus formed was friable and yellowish. Based on the results of this research, the best medium for callus induction of rejasa in dark conditions was medium with the addition of 5 ppm Picloram.
&amp;nbsp;
Rejasa (Elaeocarpus grandiflorus) adalah tanaman identitas Salatiga yang mulai jarang ditemukan. Pertumbuhan populasinya memiliki perkembangan yang lambat. Perkembangan generatif melalui perkecambahan biji terjadi dalam tingkat yang sangat rendah. Dalam kelangkaannya, rejasa memiliki khasiat sebagai tanaman obat melalui metabolit sekunder yang dihasilkan. Penelitian ini menguji pertumbuhan kalus rejasa dalam variasi jenis dan konsentrasi zat pengatur tumbuh. Variabel bebas yang digunakan adalah jenis dan konsentrasi zat pengatur tumbuh (2,4-dichlorophenoxyacetic acid (2,4-D) dengan konsentrasi 1,5; 2,5; dan 3,5 ppm serta pikloram dengan konsentrasi 3,5; 5; dan 7,5 ppm). Variabel terikat dalam penelitian ini adalah pertumbuhan kalus rejasa (persentase tumbuh kalus, waktu berkalus, dan morfologi kalus) dalam medium yang diamati selama 5 bulan. Eksplan yang digunakan adalah tangkai muda yang ditanam dalam medium agar Murashige &amp;amp; Skoog dengan penambahan zat pengatur tumbuh 2,4-D dan pikloram dalam berbagai konsentrasi dan dipelihara dalam kondisi gelap. Hasil penelitian menunjukkan persentase induksi kalus paling rendah terdapat pada eksplan dengan penambahan zat pengatur tumbuh pikloram dengan konsentrasi 7,5 ppm (14%). Eksplan yang dipelihara pada medium dengan penambahan pikloram konsentrasi 5 ppm memghasilkan persentasi induksi kalus tertinggi. Waktu induksi kalus berada dalam rentang 10-22 hari. Eksplan dengan penambahan zat pengatur tumbuh pikloram konsentrasi 5 ppm memiliki rerata waktu induksi kalus paling baik yaitu 12 hari. Kalus yang terbentuk dominan berwarna kekuningan dengan jenis meremah. Berdasarkan hasil penelitiaan, medium yang paling baik untuk induksi kalus dalam kondisi gelap adalah medium MS dengan penambahan zat pengatur tumbuh pikloram konsentrasi 5 ppm.</dc:description>
	<dc:publisher xml:lang="en-US">Universitas Negeri Semarang</dc:publisher>
	<dc:date>2019-04-25</dc:date>
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	<dc:identifier>10.15294/lifesci.v8i1.29986</dc:identifier>
	<dc:source xml:lang="en-US">Life Science; Vol 8 No 1 (2019): April 2019; 17-24</dc:source>
	<dc:source>2528-5009</dc:source>
	<dc:source>2252-6277</dc:source>
	<dc:source>10.15294/lifesci.v8i1</dc:source>
	<dc:language>eng</dc:language>
	<dc:relation>https://journal.unnes.ac.id/sju/UnnesJLifeSci/article/view/29986/13222</dc:relation>
	<dc:rights xml:lang="en-US">Copyright (c) 2019 Life Science</dc:rights>
	<dc:rights xml:lang="en-US">http://journal.unnes.ac.id/sju/index.php/ujls</dc:rights>
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