Potato Research

, Volume 32, Issue 2, pp 133–141

Effects of shoot, root and stolon temperature on the development of the potato (Solanum tuberosum L.) plant. I. Development of the haulm

Authors

  • Paul C. Struik
    • Department of Field Crops and Grassland ScienceWageningen Agricultural University
  • Jan Geertsema
    • Department of Field Crops and Grassland ScienceWageningen Agricultural University
  • Constan H. M. G. Custers
    • Department of Field Crops and Grassland ScienceWageningen Agricultural University
Article

DOI: 10.1007/BF02358225

Cite this article as:
Struik, P.C., Geertsema, J. & Custers, C.H.M.G. Potato Res (1989) 32: 133. doi:10.1007/BF02358225

Summary

Cultivars Bintje and Désirée were grown in a set-up that allowed temperatures of the shoot, root, and stolon environments to be separately varied. Shoot and root temperatures were either low, 18°C, or high, 28°C. Stolon temperatures were either ‘normal’, i.e. allowed to equilibrate at an ambient that depended on the temperatures of the shoot and root compartments, or ‘in-creased’ by fixed supplementary heating units in the stolon chambers.

Haulm longevity was increased by the combination high shoot temperature and low root temperature, but greatly decreased by high shoot temperature combined with high root temperature. The increased stolon temperature also advanced senescence.

The number of branches per stem (and thereby the number of leaves) was increased by an increase in stolon temperature, but the interaction with air temperature was significant. A high root temperature reduced the number of leaves significantly.

The effects on stem yield were complex; several interactions proved significant. The total drymatter yield was affected by all single factors except shoot temperature.

Additional key words

vegetative developmentleaf numberheat stressyield

Copyright information

© Kluwer Academic Publishers 1989