Abstract
Extension growth of tap-roots, initiation of lateral roots and extension growth of first lateral roots were investigated with young radish plants (Raphanus sativus cv. Rex) in aeroponic growth cabinets.
Growth was not affected by 50 mM NaCl. At higher NaCl concentrations the three growth processes were adversely affected, but not at the same magnitude: Initiation of new laterals was found to be the most salt-tolerant process, whereas growth of laterals was the most sensitive one. Thus, it seems that even within one root sytem, different root-types respond independently to environmental stresses. Such individual responses may alter the appearance of the root system and, thus, be of ecological significance.
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Waisel, Y., Breckle, S.W. Differences in responses of various radish roots to salinity. Plant Soil 104, 191–194 (1987). https://doi.org/10.1007/BF02372532
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DOI: https://doi.org/10.1007/BF02372532