Plant and Soil

, Volume 72, Issue 2–3, pp 379–383 | Cite as

Genetic differences in phosphorus absorption among white clover populations

  • J. R. Caradus
Article

Summary

Eight semi-natural white clover populations and two cultivars were grown in culture solutions containing 10 ppm and 0.01 ppm phosphorus (P). The rate of P uptake by the intact plants was then measured in solutions containing 10 ppm P.

Phosphorus uptake per unit root length was twice as great by plants previously grown at 0.01 ppm P than those grown at 10 ppm P. Large differences in total P uptake were found among populations regardless of the pretreatment; most of this variation was accounted for by differences in root length. Only small differences were found between populations for P uptake per unit root length, and then only after pretreatment with 10 ppm P; this variation was largely accounted for by relative growth rate and shoot %P.

Key words

Clover Phosphorus Populations Root Shoot Trifolium repens White clover 

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Copyright information

© Martinus Nijhoff/Dr W. Junk Publishers 1983

Authors and Affiliations

  • J. R. Caradus
    • 1
  1. 1.Agricultural Botany DepartmentReading UniversityReadingUK

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