Ecological Research

, Volume 10, Issue 2, pp 143–149 | Cite as

Distribution of hydraulic resistance in seedlings, sprouts and an adult tree ofPasania edulis Makino

  • Satoshi Ito
  • Kotaro Sakuta
  • Koichiro Gyokusen


Hydraulic resistance is an important factor in predicting water status. Hydraulic resistance of petiols, stems and branches, and roots was measured inPasania edulis Makino in order to compare the distribution of resistance between current seedlings, current stump sprouts and a 16 year old adult tree. Total resistance showed only minor variations despite large variations in plant size. This result is thought to be consistent with allometry between leaf mass and supportive organ mass, and with changes in permeability of conductive organs. Root resistance was low in sprouts and the adult tree due to their mature root systems. Current seedlings with undeveloped root systems had high root resistance. The proportion of petiol resistance in total resistance was high compared to the proportion of their conductive distance, and was thought to be a limiting factor of tree water status. The petiol resistance of the adult tree leaves was higher than for seedling and sprout leaves. From a comparison with the leaf water relation characteristics, the petiol resistance was thought to be provided as low values for intolerant leaves against water stress in order to compensate water inflow, and high values for tolerant leaves to regulate water inflow.

Key words

hydraulic resistance leaf water relations petiol propagation types water stress 


Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.


  1. Cowan I. R. (1982) Regulation of water use in relation to carbon gain in higher plants. In:Encylopedia of Plant Physiology 12B. Physiological Plant Ecology II (eds O. L. Lange, P. S. Bobel, C. B. Osmond & H. Ziegler) pp. 590–613. Springer-Verlag, New York.Google Scholar
  2. Ewers F. W. &Zimmermann M. H. (1984a) The hydraulic architecture of eastern hemlock (Tsuga canadensis).Canadian Journal of Botany 62: 940–946.Google Scholar
  3. Ewers F. W. &Zimmermann M. H. (1984b) The hydraulic architecture of balsam fir (Abies Balsamea).Physiologia Plantarum 60: 453–458.Google Scholar
  4. Ikeda T. &Suzaki T. (1984) Distribution of xylem resistance to water flow in stems and branches of hardwood species.Journal of Japanese Forestry Society 66: 229–236.Google Scholar
  5. Ito S. &Gyokusen K. (1993) Photosynthetic activity and water relations of sprouts ofPasania edulis.Ecological Research 8: 159–166.CrossRefGoogle Scholar
  6. Ito S. &Suzaki T. (1990) Morphology and water relations of leaves ofEucalyptus grobulus sprouts.Bulletin of the Kyushu University Forests 63: 37–52.Google Scholar
  7. Ito S., Suzaki T., Yahata H. &Okano T. (1988) Ecological studies of the coastalPasania edulis forests in northern Kyushu.Science Bulletin of the Faculty of Agriculture, Kyushu University 42: 163–186 (in Japanese with English summary).Google Scholar
  8. Ito S., Yahata H. &Suzaki T. (1989) Comparisons of early growth between seedlings and sprouts, and the relationship between original tree size and vigor of sprouts ofPasania edulis.Journal of the Faculty of Agriculture, Kyushu University 34: 77–94.Google Scholar
  9. Koike T. (1988) Leaf structure and photosynthetic performance as related to the forest succession of deciduous broad-leaved trees.Plant Species Biology 3: 77–87.CrossRefGoogle Scholar
  10. Maruyama Y. &Morikawa Y. (1984) Seasonal changes of several water relations parameters inQuercus crispula, Betula ermani andAbies homolepis.Journal of Japanese Forestry Society 66: 499–505.Google Scholar
  11. Scholander P. F., Hammel H. T., Bradstreet E. D. &Hemmingsen E. A. (1965) Sap pressure in vascular plants.Science 148: 339–346.Google Scholar
  12. Shinozaki K., Yoda K., Hozumi K. &Kira K. (1964a) A quantitative analysis of plant form — the pipe model theory I. Basic analysis.Japanese Journal of Ecology 14: 97–105.Google Scholar
  13. Shinozaki K., Yoda K., Hozumi K. &Kira K. (1964b) A quantitative analysis of plant form — the pipe model theory II. Further evidence of the theory and its application in forest ecology.Japanese Journal of Ecology 14: 133–139.Google Scholar
  14. Tyree M. T., Graham M. E. D., Cooper K. E. &Bazos L. A. (1983) The hydraulic architecture ofThuja occidentalis.Canadian Journal of Botany 61: 2105–2111.Google Scholar
  15. Tyree M. T. &Hammel H. T. (1972) The measurement of the turgor pressure and water relations of plant by the pressure-bomb technique.Journal of Experimental Botany 23: 267–282.Google Scholar
  16. Tyree M. T. &Sperry J. S. (1988) Do woody plants operate near the point of catastrophic xylem dysfunction caused by dynamic water stress?Plant Physiology 88: 574–580.Google Scholar
  17. Yahata H. (1987) Water relations characteristics ofCryptomeria japonica D. Don (VI) A simulation model of water regime using the parameter obtained by the P-V curve technique.Journal of the Faculty of Agriculture, Kyushu University 31: 235–245.Google Scholar
  18. Zimmermann M. H. (1978) Hydraulic architecture of some diffusive-porous trees.Canadian Journal of Botany 56: 2286–2295.Google Scholar
  19. Zimmermann M. H. (1983) Xylem Structure and the Ascent of Sap, pp. 66–82. Springer-Verlag, New York.Google Scholar

Copyright information

© Ecological Society of Japan 1995

Authors and Affiliations

  • Satoshi Ito
    • 1
  • Kotaro Sakuta
    • 2
  • Koichiro Gyokusen
    • 2
  1. 1.The University Forests, Faculty of AgricultureMiyazaki UniversityMiyazakiJapan
  2. 2.Laboratory of Silviculture, Faculty of AgricultureKyushu UniversityFukuokaJapan

Personalised recommendations