Summary
The caps of the roots of Zea mays (var. Kelvedon 33) are the source of a growth inhibitor system which also acts on the root elongation of Lens culinaris.
References
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Schachar, B.: The root cap and its significance in graviperception. Thesis Univ. London (Bedford College) (1967).
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Pilet, PE. Root cap and root growth. Planta 106, 169–171 (1972). https://doi.org/10.1007/BF00383996
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DOI: https://doi.org/10.1007/BF00383996