Plant and Soil

, Volume 250, Issue 2, pp 183–191

Salinity induced differences in growth, ion distribution and partitioning in barley between the cultivar Maythorpe and its derived mutant Golden Promise

  • Wenxue Wei
  • Paul E. Bilsborrow
  • Paul Hooley
  • Daron A. Fincham
  • Enzo Lombi
  • Brian P. Forster
Article

DOI: 10.1023/A:1022832107999

Cite this article as:
Wei, W., Bilsborrow, P.E., Hooley, P. et al. Plant and Soil (2003) 250: 183. doi:10.1023/A:1022832107999

Abstract

Dry matter changes and ion partitioning in two near isogenic barley cultivars Maythorpe (relatively salt sensitive) and Golden Promise (relatively salt tolerant) were studied in response to increasing salinity. Although the growth of both cultivars was significantly reduced by exposure to NaCl, the effect was greater in Maythorpe, whilst Golden Promise maintained an increased ratio of young to old leaf blade. Golden Promise maintained significantly lower Na+ concentrations in young expanding tissues compared with Maythorpe. Partitioning of Cl was evident in that both varieties maintained lower Cl concentrations in mesophyll than in epidermal cells. Golden Promise maintained higher K+/Na+ and Ca2+/Na+ ratios in young leaf blade and young sheath tissues than Maythorpe when exposed to salt. Differences in ion partitioning and the maintenance of higher K+ and Ca2+ to Na+ ratios, especially in young growing and recently expanded tissues, would appear to be important mechanisms contributing to the improved salt tolerance of Golden Promise.

ari-e.GP barley (Hordeum vulgaregrowth ion distribution salinity 

Copyright information

© Kluwer Academic Publishers 2003

Authors and Affiliations

  • Wenxue Wei
    • 1
  • Paul E. Bilsborrow
    • 1
  • Paul Hooley
    • 1
  • Daron A. Fincham
    • 1
  • Enzo Lombi
    • 4
  • Brian P. Forster
    • 5
  1. 1.Biosciences DivisionUniversity of WolverhamptonWolverhamptonUK
  2. 2.Department of Biological SciencesUniversity of PaisleyUK
  3. 3.Soil Science DepartmentIACR-RothamstedHarpendenUK
  4. 4.Scottish Crop Research Institute, InvergowrieDundeeUK
  5. 5.School of Agriculture, Food and Rural Development, University of Newcastle-upon-TyneUK