Abstract
AbstractIncreasing awareness of heart health and disease prevention has led consumers to more proactive grocery food choices. Fibre and its associated health benefits remains an important area of research given the current interest in food, nutrition, and health. To position the potato as a good source of fibre, breeding efforts have focused on developing cultivars and germplasm with high fibre content. The current study examined eight elite potato clones and four commercial cultivars (checks) across six environments (three locations over two years) for their total dietary fibre (TDF), neutral detergent fibre (NDF), and soluble fibre (SF) content. Genotype by environment interaction (GEI) and stability analysis were conducted with SAS and GGE Biplot software. Significant genotypic (G), environmental (E) and GEI effects were found. The six environments differed in temperature and moisture levels, which were linked to levels of NDF and TDF. Some genotypes had high levels of stability for fibre content. GGE biplot analysis found no significant mega-environments for fibre components. Two elite clones (CV96044-3 and F05081) were identified as high fibre sources (13.3 and 14.4 %, respectively) compared to the other elite clones and commercial cultivars (e.g., Russet Burbank: 11.7 %). These lines may also be suitable as parents with high fibre and stability to breed into backgrounds with other desirable qualities.
Highlights
The potato (Solanum tuberosum L.) is the third most important crop grown in the world today for human consumption—surpassed only by rice and wheat—and is the most important non-cereal crop (CIP 2011)
The current study examined eight elite potato clones and four commercial cultivars across six environments for their total dietary fibre (TDF), neutral detergent fibre (NDF), and soluble fibre (SF) content
Gilbert’s (2000) functional food trend report, which has summarized a decade of research, has found that shoppers believe foods are a source of functional nutrition for health benefits and disease prevention
Summary
The potato (Solanum tuberosum L.) is the third most important crop grown in the world today for human consumption—surpassed only by rice and wheat—and is the most important non-cereal crop (CIP 2011). Canadian consumption declined 27 % from 1996 to 2005 (Agriculture and Agri-Food Canada 2007). This movement towards reduced potato consumption has negatively impacted the potato industry, and plant breeding efforts have been made to improve the health benefits of potatoes. Picheand Garcia (2001) found health considerations to be one of the top three factors when purchasing food at the grocery store and consumers wanted more information on healthy food choices. This information can come from dietitians and health professionals, but can come through mainstream media communication. The latter form of communication can be misinformed, it is still capable of driving consumer trends
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