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Pengaruh Tingkat Kemasakan Buah, Metode Ekstraksi Buah, Metode Pengeringan, Jenis Kemasan, dan Lama Penyimpanan pada Mutu Benih Jarak Pagar (Jatropha curcas) Memen Surahman; Endang Murniati; Fifin Nashirotun Nisya
Jurnal Ilmu Pertanian Indonesia Vol. 18 No. 2 (2013): Jurnal Ilmu Pertanian Indonesia
Publisher : Institut Pertanian Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (401.749 KB)

Abstract

Provision of jatropha (Jatropha curcas) seeds along with providing high yielding varieties, is needed to ensure high seed quality. This experiment aimed to observe the pattern of jatropha seed treatment, namely the effect of fruit maturity, fruit extraction methods, seed drying, seed packaging type, and storage duration of seed on the seeds quality. The experiment was conducted from June to November 2011. Jatropha plants used as sources of seeds were obtained from jatropha plantations PT Indocement Tunggal, Tbk, Citeureup, Bogor. Seed handling experiments was conducted at the Seed Technology Laboratory, IPB. The results showed that the level of fruit maturity did not significantly affect the moisture content of seeds, the seeds germination and speed of seedlings growth, but it was significantly affect the dry weight of seed, dry weight of normal seedling, and oil content. The fruit extraction affected the time of peeling, duration of seed sortage, amount of impurities and the extent of seed damage, but it was not significantly affect the seed germination. The seed drying did not significantly affect the seed germination. The length of storage that can retain up to 51% seed germination during 3 months storage was the seed that have been stored in earthen barrel.
Karakterisasi dan Analisis Gerombol Plasma Nutfah Jarak Pagar Indonesia dan Beberapa Negara Lain Menggunakan Marka Morfologi dan Molekuler Surahman, Memen; Santosa, Edi; Nisya, Fifin Nashirotun
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol. 37 No. 3 (2009): Jurnal Agronomi Indonesia
Publisher : Indonesia Society of Agronomy (PERAGI) and Department of Agronomy and Horticulture, Faculty of Agriculture, IPB University, Bogor, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (182.606 KB) | DOI: 10.24831/jai.v37i3.1243

Abstract

  Characterization is important in breeding program and developing superior varieties of jatropha.  Jatropha characterization can be analyzed based on its morphological and agronomical characteristics.  In this study, a molecular marker, Random Amplified Polymorphic DNA (RAPD), was applied for cluster analysis.  This study was aimed at analyzing character and similarity of 30 jatropha germplasms of SBRC-IPB collection. Results showed that 30 jatropha accessions have high character variability.  Dendogram of RAPD marker showed that at 33% similarity level, the 30 jatropha accessions could be classified into three main groups.  It was also shown that Papua and China accessions had similarity levels higher than 80%.  Based on production characteristic identification, the potential accessions to be developed further included Palembang, Pontianak, Pidi, Palembang I, Pagar Alam, Medan, Curup, Lampung I, Lampung II, Komering, and Indralaya.   Key words:  Jatropha curcas L., characterization, cluster analysis, morphological marker, RAPD marker