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Masna Maya SINTA
Indonesian Research Institute for Biotechnology and Bioindustry

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Back matter 2018 no 2 Masna Maya Sinta
Menara Perkebunan Vol. 86 No. 2 (2018): 86 (2), 2018
Publisher : INDONESIAN OIL PALM RESEARCH INSTITUTE

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22302/iribb.jur.mp.v86i2.320

Abstract

Acclimatization and early growth of tissue culture-derived Stevia rebaudiana at low altitude area in Bogor, Indonesia (Aklimatisasi dan pertumbuhan awal Stevia rebaudiana asal kultur jaringan pada dataran rendah di Bogor, Indonesia) Masna Maya SINTA; Dian Mutiara AMANAH
Menara Perkebunan Vol. 87 No. 1 (2019): 87 (1), 2019
Publisher : INDONESIAN OIL PALM RESEARCH INSTITUTE

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22302/iribb.jur.mp.v87i1.326

Abstract

Aklimatisasi merupakan masa transisi sebelum kultur in vitro dapat ditanam di lingkungan ex vitro. Di daerah tropis, stevia seyogianya ditanam di dataran tinggi. Pengembangan klon stevia yang sesuai untuk dataran rendah di kawasan tropis sangat penting untuk memungkinkan penggunaan mekanisasi pada pertanaman stevia yang luas. Tujuan penelitian ini adalah menentukan pengaruh kondisi eksplan dan periode hardening terhadap daya hidup dan pertumbuhan pada tahap aklimatisasi dan pertumbuhan awal stevia klon BS 22 pada area terbuka di dataran rendah di wilayah tropis. Penelitian pertama dilangsungkan menggunakan umur tunas yang berbeda: 0, 1, 2, dan 3 minggu yang dikultur pada media padat sebagai sumber bahan eksplan. Penelitian kedua menggunakan satu buku stevia pada periode hardening dalam media cair selama 1, 4, 7 dan 10 hari. Aklimatisasi dilaksanakan dengan menanam eksplan dalam medium tumbuh campuran pada multi-tray dan diletakkan di dalam sungkup plastik tertutup selama 1 bulan. Tanaman yang berhasil hidup kemudian dipindah ke polibeg pada area terbuka dengan sinar matahari penuh. Pengamatan daya hidup dan pertumbuhan dilakukan pada akhir tahap aklimatisasi dan setelah 2 bulan di area terbuka. Hasil penelitian menunjukkan bahwa eksplan umur 1 minggu yang dikultur pada media padat mempunyai daya hidup tertinggi yakni 83%. Buku tunggal stevia yang dikultur pada medium cair pada tahap hardening selama 4 hari meningkatkan daya hidup menjadi 97% selama aklimatisasi 1 bulan. Setelah aklimatisasi, tinggi tanaman secara rata-rata adalah 2,6 cm dengan 10,6 helai daun. Tanaman yang dipindah ke area terbuka tumbuh pesat dengan tinggi tanaman mencapai 12 cm dengan 30 helai daun dan daya hidup 63% setelah 2 bulan. Hal ini menunjukkan bahwa stevia klon BS 22 mungkin sesuai untuk dataran rendah di daerah tropis.  [Kata kunci: tanaman pemanis, eksplan tunas, tahap hardening, daya hidup, tropika] AbstractAcclimatization is a transition period before in vitro culture can be planted in ex vitro environment. In the tropical region, stevia is should be planted at high altitude areas. The development of stevia clones suitable for low land area in the tropics is important to make it possible to apply mechanization in a large scale stevia plantation. The purpose of this research was to determine the effect of explant conditions and hardening period on survival rate and growth during acclimatization stage and early growth of stevia clone B 22 in an open area at low altitude area in the tropics. The first experiment was conducted using different shoot ages: 0, 1, 2 and 3 weeks cultured on solid media as an explant material source. The second experiment was using single node of stevia in different hardening periods in liquid media for 1, 4, 7 and 10 days.  Acclimatization was carried out by planting the explants on a mixture growing medium in multi-trays and placed inside a closed plastic tunnel for 1 month. The survival rate and growth parameters were observed at the end of acclimatization stage and after 2 months in the open area. The results show that 1-week explant age on solid media had the highest survival rate at 83%. Hardening single node of shoot in a liquid medium for 4 days increased the survival rate to 97% in 1 month acclimatization stage.  After acclimatization, the plant height on average was 2.6 cm with 10.6 leaves. The survived plants planted in an open area grew rapidly to 12 cm in height with 30 leaves and survival rate 63% within 2 months. It indicates that stevia clone BS 22 may suitable for a low altitude area in the tropics. [Key words: sweetener plant, shoot explant, hardening period, survival rate, tropics]  
Front matter 2019 no 1 Masna Maya Sinta
Menara Perkebunan Vol. 87 No. 1 (2019): 87 (1), 2019
Publisher : INDONESIAN OIL PALM RESEARCH INSTITUTE

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22302/iribb.jur.mp.v87i1.333

Abstract

Back matter 2019 no 1 Masna Maya Sinta
Menara Perkebunan Vol. 87 No. 1 (2019): 87 (1), 2019
Publisher : INDONESIAN OIL PALM RESEARCH INSTITUTE

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22302/iribb.jur.mp.v87i1.334

Abstract

Propagasi in vitro tanaman kurma (Phoenix dactylifera L.) pada bioreaktor dengan perendaman sesaat Rizka Tamania SAPTARI; Masna Maya SINTA; Imron RIYADI; . PRIYONO; . SUMARYONO
Menara Perkebunan Vol. 88 No. 2 (2020): 88 (2), 2020
Publisher : INDONESIAN OIL PALM RESEARCH INSTITUTE

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22302/iribb.jur.mp.v88i2.394

Abstract

The cultivation of date palm in Indonesia has increased since the last decade. However, the superior date palm seedlings are still limited and most of them are imported from other countries. The mass supply of superior date palm seedlings can be provided by in vitro propagation in the bioreactor. Therefore, the research was conducted to develop a protocol of date palm in vitro propagation by using Temporary Immersion Bioreactor (TIB). The in vitro propagation was carried out through somatic embryogenesis technique using meristematic tissues isolated from offshoots of date palm female clone cv. Zambli as explants. The explants were sterilized and then cultured to produce embryogenic calli and somatic embryos. Afterwards, somatic embryos germination and plantlets formation were conducted in TIB with treatments of immersion period: 3, 10, and 30 minutes every 6 hours, with 8 replications, The results showed that the optimal somatic embryo germination in TIB was with the immersion period of 30 min every 6 h, resulting in the most formation of shoots and fresh biomass weight increment up to nearly threefold in 6 weeks. Thereafter, plantlets formation in TIB with immersion period of 10 min and 30 min every 6 h exhibited similar performances in producing more plantlets with higher total fresh weight and better vigor than those of 3 min every 6 h. However, there were more rooted plantlets in the TIB with immersion period of 10 min every 6 h. Based on the results, an in vitro propagation protocol via somatic embryogenesis in TIB has been successfully developed for mass propagation of date palm cv. Zambli, which produced plantlets with good vigor and rooting.
Determination of the optimum initial callus weight for the efficient propagation of sugarcane in temporary immersion bioreactor Rizka Tamania SAPTARI; Imron RIYADI; Masna Maya SINTA; M Eko Riyo Bayu PRASETYO; Sylvia LINDAWATI; Sumaryono SUMARYONO
Menara Perkebunan Vol. 90 No. 2 (2022): 90 (2), 2022
Publisher : INDONESIAN OIL PALM RESEARCH INSTITUTE

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22302/iribb.jur.mp.v90i2.505

Abstract

AbstrakBioreaktor perendaman sesaat (BPS) telah digunakan secara luas untuk propagasi skala massal berbagai tanaman penting, termasuk tanaman tebu. BPS menyediakan sistem kultur semi-otomatis dan kondisi optimal bagi pertumbuhan tanaman. Beberapa faktor menentukan pertumbuhan tanaman pada BPS, salah satunya densitas dari eksplan. Oleh karena itu, penelitian dilakukan untuk menentukan bobot awal yang optimal untuk kalus tebu yang dikulturkan pada BPS, serta mengevaluasi pengaruh perbedaan bobot awal kalus tersebut terhadap proliferasi dan regenerasi kalus tebu. Kalus tebu diinduksi dari daun muda yang masih menggulung dari empat varietas tebu unggul Indonesia. Bobot awal kalus yang dikultur ke dalam bejana TIB yaitu 0,05 g; 0,1 g; 0,2 g; 0,5 g; dan 1,0 g untuk setiap bejana. Kalus kemudian melalui tahap proliferasi pada BPS sebanyak tiga siklus, kemudian kalus diregenerasi pada BPS dengan perlakuan auksin dan sitokinin. Hasil penelitian menunjukkan bahwa 0,2 g merupakan bobot awal kalus yang efisien untuk proliferasi kalus tebu pada TIB, dimana eksponensial multiplikasi kalus tercapai pada bobot awal tersebut, yaitu untuk masing-masing varietas 130,3 kali (PSKA 942), 136,8 kali (PS 094), 21,3 (PS 881), dan 12,9 kali (PS 091) setelah 12 minggu. Densitas kalus pada TIB berkorelasi negatif dengan karakteristik fisikokimia medium. Hal ini menggambarkan variasi intensitas pertumbuhan dan metabolisme kalus dengan adanya perbedaan densitas pada BPS. Penggunaan BAP 0,2 mg L-1 bersama kinetin 0,2 mg L-1 paling sesuai untuk memacu regenerasi kalus tebu dengan menghasilkan jumlah tunas terbanyak dalam waktu relatif lebih cepat (1 – 2 minggu lebih cepat) dibandingkan perlakuan lainnya dan dengan tingkat kejadian pencoklatan yang rendah.[Kata kunci: kultur in vitro, kultur cair, proliferasi]AbstractTemporary immersion bioreactor (TIB) has been utilized for the mass-scale propagation of many important plants, including sugarcane. TIB facilitates a semiautomated culture system and provides optimal conditions for plant growth. Several factors determine plant growth in the TIB, such as explant density. Therefore, an experiment was carried out to determine the optimal initial weight of sugarcane calli and to evaluate its effect on the proliferation and regeneration in TIB. Sugarcane calli were induced from spindle leaves isolated from four Indonesian prime sugarcane varieties. The initial weights of the calli cultured in the TIB flasks were 0.05 g, 0.1 g, 0.2 g, 0.5 g and 1.0 g per flask. The calli were proliferated through three cycles in TIB, and subsequently regenerated in TIB with auxin and cytokinin treatments. The results of the experiments showed that 0.2 g was the most efficient initial weight for sugarcane callus proliferation in the TIB, resulting in an exponential multiplication rate of 130.3-fold (PSKA 942), 136.8-fold (PS 094), 21.3-fold (PS 881), and 12.9-fold (PS 091) within 12 weeks. In the TIB, callus density showed a negative correlation with the physicochemical properties of the medium, demonstrating various growth intensities or metabolic activities of calli at different densities in the TIB. The use of 0.2 mg L-1 BAP along with 0.2 mg L-1 kinetin was suitable for promoting the regeneration of sugarcane calli and producing the highest number of shoots in a relatively short amount of time (1 – 2 weeks faster) with low incidences of browning.[Keywords: in vitro culture, liquid culture, proliferation]