Photosynthetic pigments, nitrogen, chlorophyll a fluorescence and SPAD-502 readings in coffee leaves

Photosynthetic pigments, nitrogen, chlorophyll a fluorescence and SPAD-502 readings in coffee leaves The chlorophyll meter (SPAD-502) is a simple, portable diagnostic tool that measures the greenness or relative content of leaves. Compared to the traditional destructive methods, the use of this equipment saves time, space and resources. The objective of this study was to establish a correlation between the photosynthetic pigments content extracted in DMSO, the total nitrogen content and the chlorophyll a fluorescence variables with the SPAD-502 readings in Coffea canephora Pierre leaves. The SPAD-502 has been shown to be a good tool to diagnose the integrity of the photosynthetic system in coffee leaves, and can thus help in the advanced interpretations of the photochemical process of these plants. The SPAD readings lower 40 show impairment in photosynthetic process. Thus, the portable chlorophyll SPAD-502 can be used to analyze the photosynthetic pigments, and total nitrogen can also help in interpretation of the photochemical process in coffee plants. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Scientia Horticulturae Elsevier

Photosynthetic pigments, nitrogen, chlorophyll a fluorescence and SPAD-502 readings in coffee leaves

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Publisher
Elsevier
Copyright
Copyright © 2004 Elsevier B.V.
ISSN
0304-4238
eISSN
1879-1018
DOI
10.1016/j.scienta.2004.08.013
Publisher site
See Article on Publisher Site

Abstract

The chlorophyll meter (SPAD-502) is a simple, portable diagnostic tool that measures the greenness or relative content of leaves. Compared to the traditional destructive methods, the use of this equipment saves time, space and resources. The objective of this study was to establish a correlation between the photosynthetic pigments content extracted in DMSO, the total nitrogen content and the chlorophyll a fluorescence variables with the SPAD-502 readings in Coffea canephora Pierre leaves. The SPAD-502 has been shown to be a good tool to diagnose the integrity of the photosynthetic system in coffee leaves, and can thus help in the advanced interpretations of the photochemical process of these plants. The SPAD readings lower 40 show impairment in photosynthetic process. Thus, the portable chlorophyll SPAD-502 can be used to analyze the photosynthetic pigments, and total nitrogen can also help in interpretation of the photochemical process in coffee plants.

Journal

Scientia HorticulturaeElsevier

Published: Mar 30, 2005

References

  • Chlorophyll fluorescence as a selection criterion for grain yield in durum wheat under Mediterranean conditions
    Araus, J.L.; Amaro, T.; Voltas, J.; Nakkoul, H.; Nachit, M.M.
  • Photosynthesis in coffee ( Coffea arabica and C. canephora ) as affected by winter and summer conditions
    Da Matta, F.M.; Maestri, M.; Mosquim, P.R.; Barros, R.S.
  • Extinction coefficients of chlorophyll a and b in N , N -dimethylformamide and 80% acetone
    Inskeep, W.P.; Bloom, P.R.
  • Formulae for determination of chlorophyllous pigments extracted with N , N -dimethylformamide
    Moran, R.
  • Chlorophyll determinations in intact tissue using N , N -dimethylformamide
    Moran, R.; Porath, D.
  • When there is too much light
    Ort, D.
  • Salt tolerance in crop plants monitored by chlorophyll fluorescence in vivo
    Smille, R.M.; Nott, R.
  • Effects of frost hardening, dehardening and freezing stress on in vivo chlorophyll fluorescence of scots pine seedlings ( Pinus sylvestris L.)
    Strand, M.; Öquist, G.

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