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Plant and Soil

, Volume 97, Issue 3, pp 429–437 | Cite as

The uptake and transport of silicon by perennial ryegrass and wheat

  • S. C. Jarvis
Article

Summary

In experiments with perennial ryegrass and wheat, silicon (Si) concentration in flowing solution culture was maintained constant at 0, 10 and 20 mgl−1 (ryegrass) or 0, 20 and 40 mgl−1 (wheat). Uptake and transport were measured in both species at frequent harvests over periods of up to 80 days. By the final harvests the initial differences in concentration between plants grown at high or low Si were largely eliminated. Much more Si was taken up by both species from the culture solution than was present in the transpiration stream. With ryegrass, the calculated cumulative amounts taken up through mass flow by plants grown at 10 or 20mgl−1 Si, represented less than 40 and 70 per cent, respectively, of the total Si uptake. Up to 94 per cent of the Si taken up by wheat was transported rapidly to the shoots; older leaves contained up to 11.8 per cent Si.

Key words

Flowing solution culture Perennial ryegrass Silicon Transport Uptake Wheat 

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Copyright information

© Martinus Nijhoff Publishers 1987

Authors and Affiliations

  • S. C. Jarvis
    • 1
  1. 1.The Animal and Grassland Research InstituteMaidenhead

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