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. 2020 Feb 13;11:61. doi: 10.3389/fpls.2020.00061

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Copyright © 2020 Blösch, Plaza-Wüthrich, Barbier de Reuille, Weichert, Routier-Kierzkowska, Cannarozzi, Robinson and Tadele

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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Principal Component Analysis for the top two components. (A) Scores of the first two principle components colored by genotype. Quncho (Q): green; Dukem (D): teal; kinde (K): purple; Key Murrie (KM): pink; and Gommadie (G): orange are shown for the 95 observations which had measurements for both panicle angle and panicle weight. Significant overlap is seen for Quncho and one of its parents, Dukem. Kinde is separated on both principle components. (B) Loadings of the first two principle components. Panicle angle (P_angle) is highly correlated with lodging angle (L_angle). In a correlation circle plot, the angle formed by any two variables and the origin reflects their pairwise correlation.