Fluorescence decline ratio comparison with quantum yield ratio for plant physiological status and herbicide treatment responses

Authors

  • D.B. Horgan
  • J.A. Zabkiewicz

DOI:

https://doi.org/10.30843/nzpp.2008.61.6802

Abstract

Plant fluorescence is normally measured using the ratio Fv/Fm (quantum yield) An alternative measurement fluorescence decline ratio (Rfd) can be used instead of Fv/Fm The usefulness of the Rfd ratio in comparison to Fv/Fm was tested with three plant species of differing leaf character Diurnal trends were measured after treatment with two herbicides diuron a lipophilic photosynthesis inhibiting herbicide and dalapon a lesslipophilic nonphotosynthesis inhibiting herbicide In wheat both herbicides were tested with three nonionic surfactants of differing hydrophile lipophile balance (HLB) The Rfd ratio was a more sensitive numerical indicator of plant responses and provides an alternative approach to monitoring and measuring the effect of stress factors in plants

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Published

2008-08-01

How to Cite

Horgan, D.B., and J.A. Zabkiewicz. “Fluorescence Decline Ratio Comparison With Quantum Yield Ratio for Plant Physiological Status and Herbicide Treatment Responses”. New Zealand Plant Protection 61 (August 1, 2008): 169–173. Accessed October 3, 2022. https://journal.nzpps.org/index.php/nzpp/article/view/6802.

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