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Journal : AGRIC

INDUKSI KALUS DAN PROLIFERASI ARTEMISIA CINA BERG EX POLJAKOV Maria Marina Herawati; Aziz Purwantoro; Endang Sulistyaningsih; Suwijiyo Pramono
Agric Vol. 26 No. 1 (2014)
Publisher : Fakultas Pertanian dan Bisnis, Universitas Kristen Satya Wacana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24246/agric.2014.v26.i1.p45-51

Abstract

Penelitian ini bertujuan untuk mengevaluasi efek kondisi terang dan gelap pada induksi dan proliferasi kalus dari kalus Artemisia cina. Eksplan steril akan dikulturkan pada media MS dengan kandungan 2.4-D 1 mg/L dan diletakkan pada kondisi terang dan gelap. Hasil penelitian menunjukkan bahwa induksi kalus akan lebih efektif pada kondisi gelap, sedangkan proliferasi kalus lebih efektif pada kondisi terang. Tahap terbaik untuk proses regenerasi adalah hari ke-48 setelah transfer dari media induksi.
SKRINING FITOKIMIA DAN AKTIVITAS ANTIBAKTERI in vitro EKSTRAK HEKSANA-PETROLEUM ETER Artemisia cina Berg. ex Poljakov Elizabeth B.E Kristiani; Sri Kasmiyati; Maria Marina Herawati
Agric Vol. 27 No. 1 (2015)
Publisher : Fakultas Pertanian dan Bisnis, Universitas Kristen Satya Wacana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24246/agric.2015.v27.i1.p30-37

Abstract

The objectives of this reserch were to determine the antibacterial activity of hexane-petroleum ether (1 : 1 v/v) extract of Artemisia cinaBerg. ex Poljakov on Escherichia coli and Staphylococcus aureus and its compounds. The design of the research was using completely Randomized Design in five concentration of extract that were 0, 50, 75, 100, 150, dan 200 mg/ml with four repliceted. Ethanol 60% was used as negative control and tetracycline as positive control. There were three steps of research. First step was extracted the plant using soxhlet method with hexane-petroleum ether (1:1 v/v). Second step was determined the antibacterial activity of hexane-petroleum ether (1:1 v/v) extract in various concentration of that extracts on E. Coli and S. aureus using agar diffusion method. Analysis of Variance (ANOVA) and was used to determined the significan different of diameter of inhibition between the treatments. Thirdsteps was phytochemical analysis of extract. The highest antibactrial activity on E. Coli was at 100 mg/ml whereas on S. Aureus at 150 mg/ml. That extract was contained flavonoid, alkaloid, essential oils, saponin, sterol, tritepene, hydrolized tannin, and coumarin.
Study Of Pineapple Exocarp, Gadung Tuber And Liquid Of Pulp Cocoa Fermentation As Latex Coagulants Toward Rubber Quality Ayu Valentina; Yohanes Hendro Agus; Maria Marina Herawati
Agric Vol. 32 No. 1 (2020)
Publisher : Fakultas Pertanian dan Bisnis, Universitas Kristen Satya Wacana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24246/agric.2020.v32.i1.p1-12

Abstract

Some rubber farmers in Indonesia use un-recommended latex coagulant and it causes bad quality of rubber. The utilization of organic latex coagulants has the potential way to improve rubber quality. The aim of this study was to determine the effect of pineapple exocarp extract, gadung tuber extract and liquid of pulp cocoa fermentation as latex coagulants toward rubber quality. The study was using Randomized Completely Block Design with six treatments and four replications the treatments tested was 10 ml and 20 ml pineapple exocarp extract, 10 ml and 20 ml gadung extract and 10 ml and 20 ml liquid of pulp cocoa fermentation. The parameters observed were contact time, weight of rubber and rubber characteristic which are comprised of serum clarity, rubber color and rubber stinky smell produced, ash content and volatile matter compared to Standart Indonesian Rubber (SIR) 20. The result of this study showed that 20 ml latex coagulant had faster contact time than others and increased weight of the rubber. It showed that rubbers produced a bit stinky smell as well, it was better than rubbers produced by inorganic latex coagulant.
PENGARUH KONSENTRASI DAN FREKUENSI PEMBERIAN GIBERELIN TERHADAP PERTUMBUHAN TANAMAN ARTEMISIA ANNUA Linn Fransisca Mareta Kurnia Sari; Maria Marina Herawati; Endang Pudjihartati; Martinus Andree Wijaya Setiawan
Agric Vol. 34 No. 1 (2022)
Publisher : Fakultas Pertanian dan Bisnis, Universitas Kristen Satya Wacana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24246/agric.2022.v34.i1.p15-22

Abstract

Artemisia is one of the plants that can be used as an alternative medicine for malaria. The Artemisia plant contains secondary metabolites in the form of artemisinin compounds that function as antimalarials. One of the efforts that can be done to increase the growth of Artemisia annua. plants is by using a growth regulator of gibberellins (GA3). Using a Randomized Block Factorial Designs (RBFD) with the first factor being the concentration of 50 mg.L-1 (K1), mg.L-1(K2), 150 mg.L-1 (K3), 200 mg.L-1 (K4). The second factor has 3 frequencies, 1 time giving 7HSPT (F1), 2 times giving 7HSPT and 14HSPT (F2), and 3 times giving 7HSPT, 14HSPT and 30HSPT (F3). In addition, there were plants that were not given GA3 control (without treatment). Parameters observed were plant height, leaf area, glandular trichome density, and plant dry weight. The results showed that the administration of gibberellins (GA3) with different concentrations and frequencies on plant height, leaf area, glandular trichome density, and dry weight of A. annua plants had no significant effect. Plants have not been able to grow properly because the provision of gibberellins that have not been active stimulates all plant tissues and directly seeps through the roots, stems and leaves.
Co-Authors Adella Natasha Alfred Jansen Sutrisno Andre Agusta Andreas Binar Aji Sukmana Andree Wijaya Setiawan Anggrayni, Puteri Ayu Valentina Ayu Valentina Aziz Purwantoro Aziz Purwantoro Bangkit Lutfiaji Syaefullah Bayu Nuswantara Bayu Setyaji Bistok Hasiholan Simanjuntak Chrismita B. Lusihanne Clement Panji Dinda Sukma Wibowo Djoko Murdono Dwi Haryono Dwi Septian, Bagas Dyan Yulianti Ebit Eko Bachtiar Elizabeth B.E Kristiani Elizabeth Betty Elok Kristiani Endang Pudjihartati Endang Sulistyaningsih Exvaricha Exvaricha Farid Maulana Fransisca Mareta Kurnia Sari Harefa, Thessalonika Elberta Hendrik Johannes Nadapdap Herry Susanto Ivan Tjahja Pranata Jayanti, Ruth Meike Jennifer Larisa Liem Jonathan Galih Raka Kusuma Kezia Natalia Kirani, Devi Kusuma, Jonathan Galih Raka Lestari, Dyah Aring Hepiana Lim, Intan Junita Liska Simamora Maria Maria Maria Maria Maria Melycorianda H. Ndapamuri Natalia, Kezia Natallie Whihel Mita Ndruru, Celvia Carlinawati Ni Putu Vidia Tiara Timur Ni Putu Vidia Tiara Timur Novinanto, Antonius Nugraheni Widyawati Pangaribuan, Armando Beresman Purwoko, Agus Putri, Anindya N Rastosari A Sabrina Ayu Sari Setiyowati Sembiring, Etimanta Pratama Septiandhani, Anugraheni Setiyani, Catur Simanjuntak, istok Hasiholan Simarmata, Elvi Fitriani Sri Kasmiyati Suprayogi, Syahtian Suprihati Suprihati Suwijiyo Pramono Suwijiyo Pramono Theresa Dwi Kurnia Tinjung Mary Prihtanti Titaley, Naning Restiani Vincentia Irene Meitiniarti Yayi Suryo Prabandari Yoga Aji Handoko Yohanes Hendro Agus Yohanes Hendro Agus Yohanes Hendro Agus yulaekhah, siti Yuliana Pratiwi Asti Yuliawati Yuliawati Zebrina Alfacesara Dewayanti