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. 2022 Mar 3;129(6):657–668. doi: 10.1093/aob/mcac029

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© The Author(s) 2022. Published by Oxford University Press on behalf of the Annals of Botany Company. All rights reserved. For permissions, please e-mail: journals.permissions@oup.com.

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Fig. 6. — Structural mechanical properties are lower from senesced roots (R6+) compared to hydrated roots (R1/R2). A three-way ANOVA showed that: (A) the structural stiffness (K) was impacted by whorl, genotype and reproductive stage (P < 0.05). Brace roots from the bottom whorl (WR1) of B73 were significantly lower at the R6+ reproductive stage than the R1/R2 reproductive stage. (B) The ultimate load (UL) was impacted by whorl, genotype and reproductive stage (P < 0.05). The UL was significantly lower for the R6+ reproductive stage within the same whorl for B73 (WR1 and WR2), Oh43 (WR2) and A632 (WR2). (C) The break load (BL) was not impacted by whorl, genotype or reproductive stage (P ≥ 0.05). On average brace roots had a lower BL at the R6+ reproductive stage, but these differences were not statistically significant.