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. 2016 Oct 24;6:35958. doi: 10.1038/srep35958

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Copyright © 2016, The Author(s)

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Samples are replicates of element concentrations in winter wheat at different developmental stages, i.e. seed grain, above ground plant biomass in spring (BBCH 31), above ground plant biomass in summer (BBCH 61), and grain yield. The wheat was field-grown in Central Sweden during two growing seasons (2013, open symbols; and 2014, closed symbols) and with different preceding crops (wheat monoculture, blue symbols; non-wheat preceding crop, red symbols). Eigenvalues 7.78 for dimension 1 (explanatory power 71%), and 1.76 for dimension 2 (explanatory power 16%).