TitleVARIATIONS IN THE MINERAL CONCENTRATION AMONG DIFFERENT POTATO (SOLANUM TUBEROSUM L.) ACCESSIONS
Publication TypeJournal Article
Year of Publication2021
AuthorsSingh, B, Sharma, J, Bhardwaj, V, Sood, S, Siddappa, S, Goutam, U, Dalamu,, Kardile, H, Dipta, B, Pandey, NK
JournalPotato Journal
Volume48
Pagination99-107
Date Published7
Abstract

A collection of one hundred tetraploid potato accessions was evaluated in relation to the concentrations of nine minerals (Fe, Zn, Cu, Mn, Ca, Mg, S, P and K) required for human nutrition. Large amount of variability for selected minerals was observed in the germplasm. Significant positive correlations (P < 0.001) were found between Fe-Cu (r2=0.41), Zn-Cu (r2=0.46), Mn-K (r2=0.51) and Ca-Mg (r2=0.40), whereas significant negative correlation (P < 0.001) was observed between P-K (r2= -0.36). The first two principle components accounted 42.72% of the total observed variations. Unweighted pair group method with arithmetic mean (UPGMA) based clustering distinguished the potato accessions into different groups based on Gower distances. These results will be useful for developing biofortified potato varieties using traditional and modern breeding methods. Moreover, variations in the mineral contents within the potato germplasm could also be used for the identification of molecular markers associated with mineral concentrations through genome wide association studies (GWAS).