Abstract
The distribution of elongation and surface pH patterns along the primary roots of maize (cv. LG 11), maintained vertically in humid air (darkness, 22°C), have been analysed quantitatively. A new technique employing Sephadex G 25 beads containing a pH indicator dye (bromocresol purple), was used for measuring both the growth gradient of the roots (Sephadex beads as markers) and at the same time, the surface pH changes (referring to a standard scale). The optimal axial growth was located between 2 and 4 mm from the tip. This coincides with the optimal decrease in surface pH.
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Pilet, PE., Versel, JM. & Mayor, G. Growth distribution and surface pH patterns along maize roots. Planta 158, 398–402 (1983). https://doi.org/10.1007/BF00397731
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DOI: https://doi.org/10.1007/BF00397731