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. 2019 Mar 22;10:351. doi: 10.3389/fpls.2019.00351

Figure 1.

Figure 1

Bifurcating tree identification showing 11 hierarchical balances representing a subcomposition of nutrients in the lettuce ionome: [Fv | Fe,Mn,Zn,Cu,Mg,Ca,Na,K,S,N,P], [Fe, Mn,Zn,Cu | Mg,Ca,Na,K,S,N,P], [Fe | Mn,Zn,Cu], [Na,Mg,K,Ca | N,S,P], [Mn | Zn,Cu], [Mg,Ca | Na,K], [S,N | P], [Zn | Cu], [Mg | Ca], [Na | K], [S | N]. The experimental effect on nutrient balances was removed prior to data processing using mixed modeling with the nutrient balance as response and the experiment as random intercept (more details in the Results section).