Will elevated CO2 concentrations protect the yield of wheat from O3 damage?

I. F. McKee, J. F. Bullimore, S. P. Long

Research output: Contribution to journalArticlepeer-review

Abstract

This study investigated the interacting effects of carbon dioxide and ozone concentrations on the growth and yield of spring wheat (Triticum aestivum L. cv. Wembley). Plants were exposed from time of sowing to harvest to reciprocal combinations of two carbon dioxide and two ozone treatments: [CO2] at 350 or 700 μmol mol-1, and [O2] at <5 or 60 nmol mol-1. Records of leaf emergence, leaf duration and tillering were taken throughout leaf development. At harvest, biomass, yield and partitioning were analysed. Our data showed that elevated [CO2] fully protected against the detrimental effect of elevated [O3] on biomass, but not yield.

Original languageEnglish (US)
Pages (from-to)77-84
Number of pages8
JournalPlant, Cell and Environment
Volume20
Issue number1
DOIs
StatePublished - Jan 1997
Externally publishedYes

Keywords

  • Triticum aestivum L.
  • carbon dioxide
  • growth
  • ozone
  • partitioning
  • yield

ASJC Scopus subject areas

  • Physiology
  • Plant Science

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