Morphometric and phytochemical characterization and elevation effect on yield of three potato landraces of the Ligurian Apennines (Northern Italy)
DOI:
https://doi.org/10.5073/JABFQ.2020.093.028Abstract
The great adaptability, productivity and importance in human diet conditioned the diffusion of potato (Solanum tuberosum L.) in very different areas, leading to the formation of numerous landraces through anthropic or natural selection. Genoa mountainous inland is an historical area for potato cultivation and landraces are preserved by farmers associations as “Consorzio della Quarantina”. The aim of this study was the phytochemical and morphometric characterization of three potato landraces of the consortium (Quarantina Bianca, Quarantina Prugnona and Rubra spes) analysing the bio-agronomical performance at different elevations. The commercial cultivar Kennebec was used as control. For the morphometric analysis, the results of pairwise MANOVA shows that only Quarantina Bianca does not present significant differences with Kennebec in the mean shape. The four potato varieties resulted significantly different for the most of the considered phytochemical aspects (among content in ash, starch, solanine, total flavonoids, total phenols, chlorogenic acid, caffeic acid, ferulic acid and radical scavenging activity only starch and solanine content didn’t result statistically different). A remarkable result was a more consistent yield for all the varieties with the increase of elevation in the agronomical trials. We can conclude that Genovese landraces are a good choice to exploit Genovese mountain marginal territories.
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