Conclusive remarks : reliability and comparability of chlorophyll fluorescence data from several field teams
Articolo
Data di Pubblicazione:
2011
Citazione:
Conclusive remarks : reliability and comparability of chlorophyll fluorescence data from several field teams / F. Bussotti, M. Pollastrini, C. Cascio, R. Desotgiu, G. Gerosa, R. Marzuoli, C. Nali, G. Lorenzini, E. Pellegrini, M.G. Carucci, E. Salvatori, L. Fusaro, M. Piccotto, P. Malaspina, A. Manfredi, E. Roccotello, S. Toscano, E. Gottardini, A. Cristofori, A. Fini, D. Weber, V. Baldassarre, L. Barbanti, A. Monti, R.J. Strasser. - In: ENVIRONMENTAL AND EXPERIMENTAL BOTANY. - ISSN 0098-8472. - 73:1(2011), pp. 116-119.
Abstract:
Two field exercises were carried out to compare chlorophyll a fluorescence measurements taken in the
field by field teams working on the same project. In the first exercise (2007, Passo Pura, Ampezzo, Udine,
Northern Italy) the operators took measurements on the same leaf areas (maintaining fixed leaf clips);
in the second (2009, Monterotondo Marittimo, Grosseto, Central Italy) the teams worked independently,
but addressing a common research question. The results of the first exercise showed that: (a) FV/FM was
stable and had little variation among teams and instruments; (b) the results from the different teams
correlated well; (c) the most suitable parameters of fast kinetics analysis are those measured on the
normalized fluorescence transients. In the second exercise, when the teams worked independently, the
results were much more variable and the correlations between measurements of different operators
were weak. These results suggest that field chlorophyll a fluorescence measurements taken by different
teams/operators can be comparable only if particular care is taken to the internal variability of the samples
and a standardized sampling strategy is applied. A statistically sound representation of a population can
be then reached.
Tipologia IRIS:
01 - Articolo su periodico
Keywords:
Chlorophyll fluorescence; Field exercises; FV/FM; Harmonization; Intercalibration
Elenco autori:
F. Bussotti, M. Pollastrini, C. Cascio, R. Desotgiu, G. Gerosa, R. Marzuoli, C. Nali, G. Lorenzini, E. Pellegrini, M.G. Carucci, E. Salvatori, L. Fusaro, M. Piccotto, P. Malaspina, A. Manfredi, E. Roccotello, S. Toscano, E. Gottardini, A. Cristofori, A. Fini, D. Weber, V. Baldassarre, L. Barbanti, A. Monti, R.J. Strasser
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