Claim Missing Document
Check
Articles

Found 3 Documents
Search

Teknik Enkapsulasi Sederhana untuk Konservasi In vitro Jangka Menengah Tanaman Nenas (Ananas comosus) [Simple Encapsulation Technique for Medium Term Pineapple (Ananas comosus) In vitro Conservation] Riry Prihatini; Sri Hadiati
Jurnal Hortikultura Vol 29, No 1 (2019): Juni 2019
Publisher : Indonesian Center for Horticulture Research and Development

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21082/jhort.v29n1.2019.p1-8

Abstract

Konservasi in vitro tanaman nenas dilakukan untuk penyimpanan materi genetik sebelum dimanfaatkan. Penelitian ini dilaksanakan untuk mengembangkan teknik enkapsulasi yang dapat memperpanjang daya simpan benih sintetik nenas melalui perlakuan konsentrasi natrium alginat, suhu, dan media penyimpanan. Penelitian dilakukan di Laboratorium Kultur Jaringan, Balai Penelitian Tanaman Buah Tropika, mulai Januari hingga Desember 2017. Bahan yang digunakan adalah plantlet nenas aksesi 5X18(10). Penelitian dibagi menjadi dua subkegiatan. Metode yang digunakan pada subkegiatan pertama yaitu tunas mikro nenas dienkapulasi dengan metode tetes menggunakan natrium alginat 3% dan 4% serta penyimpanan dalam akuades steril dan tanpa media selama 30, 60, 120, dan 240 hari pada suhu 25oC. Penggunaan 4% natrium alginat dan media akuades steril dapat memperpanjang masa simpan benih sintetik nenas hingga 240 hari dengan daya regenerasi benih 100%. Pada subkegiatan kedua, perlakuan terbaik pada subkegiatan pertama dilanjutkan dengan perlakuan suhu penyimpanan 4oC. Benih sintetik nenas pada suhu penyimpanan tersebut hanya mampu bertahan hingga 60 hari, selebihnya tunas dalam benih menghitam dan tidak dapat ditumbuhkan kembali. Metode enkapsulasi untuk penyimpanan materi genetik yang dikembangkan dalam penelitian ini lebih sederhana dan efisien serta dapat diaplikasikan pada kegiatan konservasi in vitro jangka menengah tanaman nenas.KeywordsEnkapsulasi; Konservasi; In vitro;  Tanaman nenasAbstractIn vitro conservation of pineapple was conducted as preservation of genetic material before it was further utilized. This research was conducted to obtain encapsulation technique which expanded synthetic seeds shelf life by modifying concentration of sodium alginate, incubation media, and temperature. The research was conducted on Tissue Culture Laboratory of Indonesian Tropical Fruit Research Institute on January to December 2017. The materials which were used included pineapple micro shoots accessions 5X18(10). The research was divided into subactivities. The method which was applied on the first subactivity included encapsulation of pineapple micro shoots using drop method with sodium alginate 3% and 4%,incubation media sterile aquades and without media for 30, 60, 120, and 240 days on 25oC temperature.The use of 4% sodium alginate and sterile aquades incubation media prolonged the pineapple shelf life up to 240 days with 100% regeneration capability. On the second subactivity, the best treatment on the first activity was combined with 4oC incubation temperature. The pineapple synthetic seeds on this incubation temperature only survive up to 60 days, became blackening, and could not be regrowth. Encapsulation method which was developed on this study was simpler, more efficient, and able to be applied for medium term pineapple in vitro conservation.
CHARACTERIZATION AND CLUSTERING OF SOME GUAVA GERMPLASM COLLECTIONS BASED ON LEAF AND FRUIT CHARACTERS Fitriana Nasution; Sri Hadiati
AGRIVITA, Journal of Agricultural Science Vol 36, No 1 (2014)
Publisher : Faculty of Agriculture University of Brawijaya in collaboration with PERAGI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17503/agrivita.v36i1.370

Abstract

Guava has several different accessions. Guava diversity needs to be studied and evaluated in order to determine the next steps in the guava breeding. The objective of this research was to characterize and cluster of some guava germplasm collections. The study was conducted at Aripan and Subang experimental farm, Indonesian Tropical Fruit Research Institute from January 2012 to December 2012. Five fruits of each accession were randomly selected sampled and then characterized using UPOV guidelines. Obtained data were analyzed by NTSYS ver.2.1. The Similarity level of 19 accessions ranged from 70 – 90% or the genetic distance was between 0-20%. Dendogram obtained could be clustered into two different groups, namely group I (ARP9406, ARP9407, ARP8653, ARP8742, ARP10.2, JBT001, JBT002, ARP8740, JBT003 and JBT004), group II (ARP10.7, ARP10.6, ARP10.1, ARP10.12, ARP10.9, ARP10.11, ARP8744, ARP8741 and ARP8743). The result of this research can be used for guava breeding. Species diversity and genetic resources are very important to get new varieties. This study would be highly valuable in the future. Keywords :  Guava  Germplasm, Characterization, Clustering
Genetic and Heritability Estimation of Water Apple (Syzygium aqueum (Burm.f.) Alston) Fitriana Nasution; Sri Hadiati
Journal of Tropical Horticulture Vol 2, No 2 (2019): October 2019
Publisher : Indonesian Society for Horticulture (Perhimpunan Hortikultura Indonesia Komisariat Aceh)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1584.001 KB) | DOI: 10.33089/jthort.v2i2.25

Abstract

Nine different accessions of water apples were evaluated at Indonesian Tropical Fruit Research Institute(ITFRI), Solok, West Sumatera from January 2013 to December 2014. This present study was aimed to evaluate the variability, heritability, genetic advance and its characters in nine different accessions to provide useful information in the improvement program of water apples. The research used Randomized Complete Block Design (RCBD) with two replications. The ANOVA results exposed significant differences at 5% probability level for all characters. Genotypic variance on fruit weight, fruit length, fruit diameter, leaf length were broad. However, the genotypic variance on total soluble solids, leaf width were narrow. The phenotypic variation for all characters was broad. The heritability estimation was categorized as low, moderate, and high. High heritability estimation was recorded for fruit weight, fruit length, fruit diameter, and leaf diameter. Moderate heritability estimation was noticed for total soluble solids. Leaf width had low heritability estimation. High heritability and high genetic advance were observed on fruit weight.