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All Journal Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy)
Jaminton Marpaung
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Agriculture, Biological Sciences & Forestry Economics, Econometrics & Finance

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Studi Karakter Umbi dan Kandungan Nutrisi Dioscorea spp. Sulistyono, Eko; Marpaung, Jaminton
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol. 32 No. 2 (2004): Buletin Agronomi
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 (767.806 KB) | DOI: 10.24831/jai.v32i2.1454

Abstract

Dioscorea was a member of Dioscoreaceae, ordo of liliales and class of Monocotyledoneae, Two types of Dioscorea were annual and perennial. As much as 50-60 species of 600 species was cultivated as food source. This research was conducted to study tuber characters and nutrition content of Dioscorea sp. Plant material was Dioscorea collection from some places in Indonesia. Five accessions of Dioscorea alata. Dioscorea esculenta and Dioscorea hispida. were analyzed for the content of fat, protein and starch. Tube characters observed were tuber number, tuber weight, length and diameter. There were significant differences of tube character, protein and starch content between Dioscorea accession. The highest tuber weight and starch content were resulted by D.alata especially accession number 49. The highest protein content was resulted by accession number 67 of D. esculenta. Positive correlation between tuber diameter and tuber weight of D. alata showed that higher accumulation of fotosynthate was followed by increasing tuber diameter. In other words, sink capacity was determined by tuber diameter. Key words: Tuber, Dioscorea spp., Nutrition content
Co-Authors Eko Sulistyono