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Correlations between crown root number and rooting depth (D 95, cm) and root length density (cm cm−3) from 80–140cm soil depths of maize at 35 DAP in greenhouse mesocosms (A, C), and from 40–60cm soil depth at anthesis in the field (B, D) under water-stressed conditions. Each point is the mean of four replicates of each genotype (±SE).
