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The hydrion concentration of plant tissues

VI. Stem tissue reactions throughout the year

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Summary

  1. 1.

    The Range Indicator Method has been applied to the determination of the hydrion concentration of the stem tissues of selected herbaceous and woody plants throughout the year.

  2. 2.

    A striking uniformity of pH has been found in several cases, see Tables II, III, IV, VIII, and X.

  3. 3.

    Variations have been observed, and these may be grouped as changes with maturing, seasonal changes and fluctuations.

  4. 4.

    Maturing changes show from upper to lower parts of the stems and are usually in the direction of increased acidity.

  5. 5.

    Seasonal changes occur in the outer rather than in the inner tissues.

  6. 6.

    For general deductions the reader is referred to the section headed “Conclusions”.

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References

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Authors and Affiliations

  1. Department of Botany, Queen's University, Belfast, Northern Ireland

    M. W. Rea M. Sc. & J. Small D. Sc.

Authors
  1. M. W. Rea M. Sc.
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  2. J. Small D. Sc.
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Rea, M.W., Small, J. The hydrion concentration of plant tissues. Protoplasma 2, 428–459 (1927). https://doi.org/10.1007/BF01604750

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  • DOI: https://doi.org/10.1007/BF01604750

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