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Root length density and D95 of maize lines with MS (many short) and FL (few long) lateral root phenotypes at the VT stage in the field under low phosphorus (A) and high phosphorus (B) availability. Correlation of D95 with lateral root branching density of crown roots in the field under low phosphorus availability (C). Data shown are means of four replicates of the four genotypes in each phenotypic class in either HP or LP ±SE.
