Relationships Between Yield and Mineral Concentrations in Potato Tubers

Abstract

<jats:p>There is concern that modern cultivars and/or agronomic practices have resulted in reduced concentrations of mineral elements essential to human nutrition in edible crops. Increased yields are often associated with reduced concentrations of mineral elements in produce, and a number of recent studies have indicated that, when grown under identical conditions, the concentrations of several mineral elements are lower in genotypes yielding more grain or shoot biomass than in older, lower-yielding genotypes. Potato is a significant crop, grown worldwide, yet few studies have investigated whether increasing yields, through agronomy or breeding, affects the concentrations of mineral elements in tubers. This article examines the hypothesis that increasing yields, either by the application of mineral fertilizers and/or by growing higher-yielding varieties, leads to decreased concentrations of mineral elements in tubers. It reports that the application of fertilizers influences tuber elemental composition in a complex manner, presumably as a consequence of soil chemistry and interactions between mineral elements within the plant, that considerable variation exists between potato genotypes in the concentrations of mineral elements in their tubers, and that, like in other crops, higher-yielding genotypes occasionally have lower concentrations of some mineral elements in their edible tissues than lower-yielding genotypes.</jats:p>

High efficacy on diclofenac removal by activated carbon produced from potato peel waste

“…The high potassium content was already reported in previous works (Hoseinzadeh et al 2013;Bozym et al 2015), which was expected since potatoes are the highest source of dietary potassium (White et al 2009). The high content of silicon was not expected, but it may be attributed to inert contaminants from soils (coarse and fine sand) which were visually observed in PPW.…”

Cultivar choice provides options for local production of organic and conventionally produced tomatoes with higher quality and antioxidant content

“…As a result, Davis recommended the use of side‐by‐side comparisons as a more accurate, controlled approach in which specific foods and nutrients can be evaluated 33. Few such side‐by‐side comparisons have been conducted, though studies looking at potato,35 wheat,36, 37 and broccoli38 have found that cultivars with higher yields (or larger heads for broccoli) often experience low to moderate declines in many nutrients compared to lower‐yielding (or smaller‐head) cultivars.…”

Genetic Evaluation of Micronutrient Traits in Diploid Potato from a Base Population of Andean Landrace Cultivars

“…Posterior modes for heritability (diagonal, boldface) and additive genetic correlations (below diagonal) for Fe, Zn, Ca, vitamin C, and tuber dry matter content from a multivariate analysis of G 1 and G 2 data (Model 4) estimated on a dry-weight or fresh-weight basis. Soil Zn deficiency is common in many crop growing regions (Cakmak, 2008;White and Zasoski, 1999), and its availability and accumulation in the edible portions of crops is therefore likely to be a complex function of soil mineral status and interactions with other environment, agronomic, and management factors (e.g., Po et al, 2010;White and Zasoski, 1999;White et al, 2009). Accumulation of Zn (and, to a lesser extent, Fe) in edible portions of food crops is reported to be particularly sensitive to environmental variables (Pfeiffer and McClafferty, 2007b), which suggests that more effective strategies to identify genotypes with high stable mineral expression across environments may be required.…”