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Gradients in maize roots: local elongation and pH

✍ Scribed by Jean-Marc Versel; Guy Mayor

Book ID
104752326
Publisher
Springer-Verlag
Year
1985
Tongue
English
Weight
478 KB
Volume
164
Category
Article
ISSN
0032-0935

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✦ Synopsis

The elongation rate, the gradient of the local elongation rate and the surface pH of maize roots were measured over 12 h. A data bank was constituted by storing these values. By sorting these results on the basis of different elongation rates, different classes of root were obtained. Two classes were chosen: the low-growth roots and the high-growth roots. The mean growth of these two root classes was stable with time and differed significantly from one another. The surface pH of the elongation zone was the same for the roots of these two classes, but the roots selected for their higher growth rate had a larger acid effiux in this zone.

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