2006/02/01 by Kateřina Valentová, A. Lebeda, Ivana Doležalová +7 · 1 citation
Nursing · Agricultural and Biological Sciences · #Microbial Metabolites in Food Biotechnology #Potato Plant Research #Botanical Research and Applications
paper · doi:10.1021/jf052645u
openalex publication_date 2006/02/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/06/16
This paper focuses on the biological and chemical variability of four yacon ( Smallanthus sonchifolius ) accessions cultivated under field conditions. Significant variations in tuber shape, weight, content of oligofructans, as well as in leaf isozymes, phenolics, and relative DNA contents were found. Accessions 6 and 88 were the most productive (up to 3.01 and 3.74 kg/plant); accession 48 was the most balanced from the yield aspect in three vegetative periods. A significantly higher content of β-(2→1) oligofructans was noted in accessions 48 and 88 as compared to 6 and 60. No difference in sucrose, glucose, and fructose level was observed. Only accession 6 exhibited separate acid phosphatase and esterase isoforms. Accessions 6 and 60 had the highest content of phenolics, and accession 88 had the lowest relative DNA content. Large yacon intraspecific variation may be useful in future detailed research as a good background for breeding, growing, and utilization in industrial processing. Keywords: Smallanthus sonchifolius; germplasm; variability; tubers; leaves; morphology; yield; isozymes; phenolics; saccharides; relative DNA content; agronomic suitability; growing; industrial processing