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roothair defective roothair defective: root hairs fail to elongate, field grown plants are stunted.

roothair defective primary root of germinating mutant kernel showing absence of root hairs. (Photos courtesy P. Schnable.)

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roothair defective for comparison with rth1, primary root of germinating normal kernel showing normal root hairs. (Photos courtesy P. Schnable.)

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roothair defective electron micrograph of the surface of an rth3 primary root showing aberrant "stocking cap" root hair initials. (Photos courtesy P. Schnable.)

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