Effect of Deficiency on the Net Photosynthesis, Chlorophyll Fluorescence and Pigment Composition of Cucumber

Mészáros, Ilona; Tóth, Viktor R.; Váradi, Gy.

doi:10.1007/978-94-009-0173-5_868

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“…Another disadvantage of the F v /F m parameter is the dependence of its values on leaf age (Šesták and Šiffel 1997, Šesták 1999). The stabilization stage of F v /F m ratio was discovered after the initial decrease and further increase (Mészáros et al 1995). Nevertheless, today the F v /F m parameter is actively applied to the estimation of plant resistance to different adverse influences, because during strengthening of the effect and after-effect of the extreme factor, F v /F m decreases, which may be the criterion of certain disorders in the electron transport chain (ETC) of PS2 (Venediktov et al 1999, Roháček 2002.…”

Section: Chl Fik Parameters Used For Estimation Of Psa Resistance Of mentioning

confidence: 97%

Ontogenetic approach to the assessment of plant resistance to prolonged stress using chlorophyll fluorescence induction method

2006

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The review deals with objective reasons that limit the use of chlorophyll fluorescence induction kinetics (Chl FIK) method in plant ecology. Based on the ontogenetic approach (analysis and comparison of the dynamics of the Chl fluorescence ratio F p /F s and physiological characteristics of plant leaves in ontogeny) possible criteria for the estimation of general plant resistance of photosynthetic apparatus (PSA) to prolonged stress affects are proposed. One of these criteria is the presence or absence of a steady-state phase in the dynamics of Chl fluorescence ratio F p /F s (or R fd ) of plant leaves after they stop growing. We also propose to use the duration of the steady-state phase and variability of Chl fluorescence ratios R fd and F p /F s in this period for quantitative assessment of plant PSA resistance to prolonged stress during plant leaf ontogeny.Additional key words: leaf age; photosystems 1 and 2; radiation colour; specific leaf growth rate.

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Section: Chl Fik Parameters Used For Estimation Of Psa Resistance Of mentioning

confidence: 97%

Ontogenetic approach to the assessment of plant resistance to prolonged stress using chlorophyll fluorescence induction method

2006

View full text Add to dashboard Cite

show abstract

Effect of Deficiency on the Net Photosynthesis, Chlorophyll Fluorescence and Pigment Composition of Cucumber

Cited by 1 publication

References 2 publications

Ontogenetic approach to the assessment of plant resistance to prolonged stress using chlorophyll fluorescence induction method

Ontogenetic approach to the assessment of plant resistance to prolonged stress using chlorophyll fluorescence induction method

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