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All Journal Jurnal Penelitian Hutan Tanaman JURNAL PERBENIHAN TANAMAN HUTAN
Yulianti Bramasto
Balai Penelitian dan Pengembangan Teknologi Perbenihan Tanaman Hutan
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Decision Sciences, Operations Research & Management Earth & Planetary Sciences

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KARAKTERISTIK TAPAK, BENIH DAN BIBIT 11 POPULASI JABON PUTIH (Anthocepalus cadamba Miq.) Dede J Sudrajat; Yulianti Bramasto; Iskandar Z Siregar
Jurnal Penelitian Hutan Tanaman Vol 11, No 1 (2014): JURNAL PENELITIAN HUTAN TANAMAN
Publisher : Pusat Penelitian dan Pengembangan Hutan

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (644.309 KB) | DOI: 10.20886/jpht.2014.11.1.31-44

Abstract

Jabon putih (Anthocephalus cadamba Miq.) merupakan salah satu jenis tanaman hutan cepat tumbuh potensial yang tersebar secara alami di sebagian besar pulau-pulau Indonesia. Penelitian ini bertujuan untuk mengkaji karakteristik tapak dan keragaman morfofisiologi benih dan bibit jabon putih. Benih dikumpulkan dari 11 populasi alami, yaitu di Sumatera (3 populasi), Jawa (2 populasi), Nusa Kambangan (1 populasi), Kalimantan (2 populasi), Sulawesi (2 populasi) dan Sumbawa (1 populasi). Hasil penelitian menunjukkan bahwa jabon putih mempunyai sebaran tempat tumbuh yang sangar luas dan kisaran kondisi tapak secara alami yang cukup beragam. Jenis ini mampu tumbuh baik pada kisaran ketinggian tempat 23–628 m dpl dengan kisaran pH tanah 4,4–6,7 dan tingkat kesuburan rendah hingga tinggi. Karakteristik morfofisiologi benih dan bibit berbeda nyata antar populasi, kecuali untuk karakter panjang radikula. Buah dengan ukuran dan berat yang lebih tinggi berkorelasi dengan pertumbuhan bibit yang lebih baik. Panjang benih berkorelasi dengan waktu rata-rata berkecambah dan panjang radikula. Korelasi juga terjadi antar karakter pada tingkat bibit. Sebagian besar karakter benih dan bibit yang diamati tidak berkorelasi dengan faktor- faktor geoklimat. Koefisien keragaman genotipe untuk semua parameter buah, benih, dan bibit ditemukan lebih tinggi daripada koefisien keragaman lingkungan.
The Control of Fungus Uromycladium tepperianum on Seedling of Sengon (Falcataria moluccana (Miq.) Barneby & J.W.Grimes) in a nursery Kurniawati Purwaka Putri; Yulianti Bramasto
Jurnal Perbenihan Tanaman Hutan Vol 5, No 1 (2017): Jurnal Perbenihan Tanaman Hutan
Publisher : Forest Tree Seed Technology Research & Development Center (FTSTRDC)/ Balai Penelitian dan

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (2408.942 KB) | DOI: 10.20886/bptpth.2017.5.1.13-22

Abstract

Sengon (Falcataria moluccana (Miq. Barneby & J.W.Grimes) is one of timber producing species of high economic value. Recently, sengon productivity decreases due to pests and diseases, attack is caused by the fungus Uromycladium tepperianum (SACE.) McAlp. The control of gall rust disease at seedling level is important, because the stadia nursery are the most vulnerable. The aim of this research was to determine the effectiveness of the type of control in supressing the fungus of U. tepperianum and the growth of sengon in a nursery. The research design used a completely randomized design (CRD) with five treatments of gall rust disease control types i.e. control ; biological fertilizer of Plant Growth Promoting Rhizobacteria (PGPR) (5 g -L of water), biofungicide (5 g-L of water); chemical fungicide (2 g-L of water); and boron (300 ppm). Each treatment consisted of 20 seedlings repeated 4 times. The observed response were the number of fungal spores, diameter and height of seedlings. In addition, calculation of the effectiveness of the type of controller was counted. The results showed that after two weeks of fungal infections, the highest seedling growth was the seedling treated with fungicide (0.53 cm), while the lowest was the seedling treated with biological fungicide (0.32 cm). PGPR, fungicide biological, chemical fungicides and boron did not effective to the attack of fungus and to increase the growth of height and diameter of sengon seedling after the 4th week of the fungus infection.
Selection of the Optimum Seed and Media Sterilization Techniques for Muna Teak (Tectona grandis L.) Micropropagation Ratna Uli Damayanti Sianturi; Yulianti Bramasto; Naning Yuniarti; Muhammad Zanzibar; NFN Megawati
Jurnal Perbenihan Tanaman Hutan Vol 8, No 1 (2020): Jurnal Perbenihan Tanaman Hutan
Publisher : Forest Tree Seed Technology Research & Development Center (FTSTRDC)/ Balai Penelitian dan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20886/bptpth.2020.8.1.33-46

Abstract

The existence of the muna teak  (Tectona grandis L.), is currently threatened with extinction,  so a muna teak replanting program is needed. Micropropagation techniques can be one solution for the supply of high quality seedlings. The purpose of this study was to obtain the optimum sterilization technique to get the sterilize explants  of  muna  teak and to get the suitable  media for in vitro multiplication. The study was conducted in a tissue culture laboratory of the Forest Tree Seed Technology Research and Development Centre in Bogor. This study consisted of two stages and the experimental design used was a completely randomized design. The first phase of the study was the treatment of sterilization techniques consisted of soaking explants in various concentration of clorox solution and the second stage of the study was the treatment of multiplication media. The results showed that the proper sterilization technique to obtain sterilize explants of muna teak seedlings was immersed in 20% chlorox solution for 10 minutes, then immersed in 15% of  chlorox for 15 minutes. The best medium for the induction stage and multiplication of Muna teak buds which are modified media  plus Benzyl Amino Purine (BAP) hormone as much as 0.1 mg.l-1
Co-Authors Dede J Sudrajat Fiona Azzahro Iskandar Z Siregar Kurniawati Purwaka Putri Muhammad Zanzibar Naning Yuniarti NFN Megawati Ratna Uli Damayanti Sianturi Tri Saptari Haryani