IDEAS home Printed from https://ideas.repec.org/a/caa/jnlpse/v54y2008i4id392-pse.html
   My bibliography  Save this article

Performance index as a sensitive indicator of water stress in Triticum aestivum L

Author

Listed:
  • M. Živčák

    (Slovak Agricultural University in Nitra, Nitra, Slovak Republic)

  • M. Brestič

    (Slovak Agricultural University in Nitra, Nitra, Slovak Republic)

  • K. Olšovská

    (Slovak Agricultural University in Nitra, Nitra, Slovak Republic)

  • P. Slamka

    (Slovak Agricultural University in Nitra, Nitra, Slovak Republic)

Abstract

Polyphasic chlorophyll α fluorescence represents a promising tool for detection of plant tolerance to various environmental stresses. In pot vegetation experiments, plants of seven winter wheat varieties were screened for their drought tolerance. The drought stress was initiated in plants by withholding water at the beginning of anthesis. While water content was measured continuously as relative water content (RWC), fast chlorophyll α fluorescence kinetics was measured and analysed on dehydrating intact leaves by the JIP-test (analysis of O-J-I-P fluorescence transient). Maximum quantum efficiency of PS II photochemistry (FV/FM) parameter was almost unaffected by dehydration until the severe water stress occurred. In contrast to this a continuous decrease of performance index (PIabs) parameter (Strasser et al. 1995) was observed from the very beginning of dehydration following the decrease of RWC. Statistically significant differences were also found in the PIabs parameter among all tested varieties. The results show that PIabs may serve as an index of plant/variety vitality and/or sensitivity to water stress reflecting their different drought tolerance.

Suggested Citation

  • M. Živčák & M. Brestič & K. Olšovská & P. Slamka, 2008. "Performance index as a sensitive indicator of water stress in Triticum aestivum L," Plant, Soil and Environment, Czech Academy of Agricultural Sciences, vol. 54(4), pages 133-139.
    • Handle: RePEc:caa:jnlpse:v:54:y:2008:i:4:id:392-pse
    DOI: 10.17221/392-PSE
    as

    Download full text from publisher

    File URL: http://pse.agriculturejournals.cz/doi/10.17221/392-PSE.html
    Download Restriction: free of charge
    File URL: http://pse.agriculturejournals.cz/doi/10.17221/392-PSE.pdf
    Download Restriction: free of charge
    File URL: https://libkey.io/10.17221/392-PSE?utm_source=ideas
    LibKey link: if access is restricted and if your library uses this service, LibKey will redirect you to where you can use your library subscription to access this item
    ---><---

    As the access to this document is restricted, you may want to search for a different version of it.

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:caa:jnlpse:v:54:y:2008:i:4:id:392-pse. See general information about how to correct material in RePEc.

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    We have no bibliographic references for this item. You can help adding them by using this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: Ivo Andrle (email available below). General contact details of provider: https://www.cazv.cz/en/home/ .

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.