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Ika Roostika
Balai Besar Penelitian dan Pengembangan Bioteknologi dan Sumber Daya Genetik Pertanian, Jl. Tentara Pelajar 3A, Bogor 16111 Telp. (0251) 8337975; Faks. (0251) 8338820
Agriculture, Biological Sciences & Forestry

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Pemanfaatan Teknik Kultur In Vitro untuk Konservasi Plasma Nutfah Ubi-ubian Nurwita Dewi; Iswari S. Dewi; Ika Roostika
Jurnal AgroBiogen Vol 10, No 1 (2014): April
Publisher : Balai Besar Penelitian dan Pengembangan Bioteknologi dan Sumber Daya Genetik Pertanian

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21082/jbio.v10n1.2014.p34-44

Abstract

Except for potato, sweet potato, taro, yam, andcassava, most of tuber crops are considered as underutilizedcrops. However, tuber crops are potential as alternativecarbohydrate sources, so they can be used as food reservesto face global climate change that affects food security incertain area throughout the world, including Indonesia.Having high diversity in tuber crops germplasm, Indonesiamust be able to conserve those germplasm to ensure theiravailability in the future. In the future, without ignoring allthe probable constraints, the prospect in utilization of in vitroculture technique will be higher for improvement ofconservation and management of genetic resources in theform of active and base collections. In this paper, strategy indeveloping in vitro collection of tuber crops germplasm, i.e.slow growth technique for medium term storage andcryopreservation technique for long term storage, isdiscussed including how to analyze genetic stability of thecollections. Several national and international researchcenters dealing with research and development of in vitroconservation technique are presented.
Konservasi In Vitro Tanaman Jeruk Besar (Citrus maxima (Burm.) Merr.) Kultivar Srinyonya Menggunakan Osmotikum dan Retardan Iswari S Dewi; Gani Jawak; Ika Roostika; Muhammad Sabda; Bambang S Purwoko; Widiati H Adil
Jurnal AgroBiogen Vol 6, No 2 (2010): Oktober
Publisher : Balai Besar Penelitian dan Pengembangan Bioteknologi dan Sumber Daya Genetik Pertanian

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21082/jbio.v6n2.2010.p84-90

Abstract

In Vitro Conservation of Pomelo (Citrus maxima (Burm.)Merr.) cv Srinyonya Using Osmoticum and Retardant.Iswari S. Dewi, Gani Jawak, Ika Roostika, M. Sabda,Bambang S. Purwoko, and Widiati H. Adil. Pomelo is anunderutilized citrus fruit with a potential for commercialization.Only some cultivars have been conserved ex situ, suchas in home yards or in botanical gardens. Such collectionsare vulnerable to biotic and abiotic hazards. The goal of theexperiment was to study the effect of osmoticum (sorbitol)and retardant (ancymidol) on in vitro growth of pomelo.Four-leaf in vitro shoots of pomelo cultivar Srinyonya wereused as plant materials. Murashige-Skoog (MS) medium wasused as the basal medium for the culture. The trial wasarranged in a completely randomized design with threereplications. The treatments consisting of MS + sorbitol (0,20, 40, and 60 g/l) and MS + ancymidol (0, 1, 3, and 5 mg/l).The results indicated that based on plant height, number ofnew leaves, and visual plant architecture, sorbitol treatmentsfrom 20-60 g/l retard the growth of the pomelo plant significantly.On the other hand, ancymidol did not inhibit thepomelo growth significantly, but it was a suitable osmoticumfor improvement of in vitro plant vigor, increasing greencolor of leaf, and increasing root initiation. Leaf senescenceof in vitro plants cultured on media containing sorbitol 40and 60 g/l began 20 week after storage. The best medium forconservation of pomelo cv Srinyonya was MS + 20 gsorbitol/l.
Co-Authors Bambang S Purwoko Gani Jawak Iswari S Dewi Iswari S. Dewi Muhammad Sabda Nurwita Dewi Widiati H Adil