Effectiveness of the photochemical reflectance index to track photosynthetic activity over a range of forest tree species and plant water statuses (Articolo in rivista)

Type

• Prodotto della ricerca (Classe)
• Articolo in rivista (Classe)

Label

• Effectiveness of the photochemical reflectance index to track photosynthetic activity over a range of forest tree species and plant water statuses (Articolo in rivista) (literal)

Anno

• 2011-01-01T00:00:00+01:00 (literal)

Alternative label

• F. RipulloneA, A. R. Rivelli, R. Baraldi , R. Guarini, R. Guerrieri, F. Magnani, J. Peñuelas, S. Raddi and M. Borghetti (2011)
  Effectiveness of the photochemical reflectance index to track photosynthetic activity over a range of forest tree species and plant water statuses
  in Functional plant biology (Print)
  (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori

• F. RipulloneA, A. R. Rivelli, R. Baraldi , R. Guarini, R. Guerrieri, F. Magnani, J. Peñuelas, S. Raddi and M. Borghetti (literal)

Pagina inizio

• 177 (literal)

Pagina fine

• 186 (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume

• 38 (literal)

Rivista

• Functional plant biology (Rivista)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni

• Department of Crop Systems, Forestry and Environmental Sciences, University of Basilicata, Institute of Biometeorology,CNR, Bologna Department of Fruit and Trees, University of Bologna Global Ecology Unit, Center for Ecological Research and Forestry Applications (CREAF), Barcelona Department of Agricultural and Forest Economics, Engineering, Sciences and Technologies,University of Florence (literal)

Titolo

• Effectiveness of the photochemical reflectance index to track photosynthetic activity over a range of forest tree species and plant water statuses (literal)

Abstract

• In this study, we investigated the potential of the photochemical resistance index (PRI) to track photosynthetic activity under water stress conditions by measuring PRI, leaf fluorescence, the xanthophyll cycle and photosynthetic activity in different forest tree species subjected to progressive drought. The PRI declined with pre-dawn water potential and a significant relationship between PRI and the xanthophyll de-epoxidation state (DEPS) was observed, although with large interspecific variability in the sensitivity of PRI to changes in DEPS. For single tree species, a strong relationship was observed on either PRI light saturated photosynthesis or PRI maximum photochemical efficiency of PSII (DF/Fm 0); a larger variability in both relationships was apparent when data from different species were pooled together. However, an improved correlation was shown only in the former relationship by plotting the DPRI (dawn PRI minus the midday PRI values). Thus, we conclude that PRI is able to provide a good estimate of maximum CO2 assimilation at saturating light and DF/Fm 0 for single tree species, despite the severe drought conditions applied. PRI should be applied more cautiously when dealing with multispecific forests because of confounding factors such as the strong interspecific differences in the initial value of PRI and in the sensitivity of PRI to changes in DEPS in response to drought. (literal)

Prodotto di

• Institute for biometeorology (IBIMET) (Istituto)
• Micrometeorologia, ecofisiologia e produttività dei sistemi naturali e antropizzati. (AG.P04.032.006) (Modulo)

Autore CNR

• RITA BARALDI (Unità di personale interno)

Insieme di parole chiave

• Parole chiave di "Effectiveness of the photochemical reflectance index to track photosynthetic activity over a range of forest tree species and plant water statuses" (Insieme di parole chiave)

Incoming links:

Prodotto

• Institute for biometeorology (IBIMET) (Istituto)
• Micrometeorologia, ecofisiologia e produttività dei sistemi naturali e antropizzati. (AG.P04.032.006) (Modulo)

Autore CNR di

• RITA BARALDI (Unità di personale interno)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#rivistaDi

• Functional plant biology (Rivista)

Insieme di parole chiave di

• Parole chiave di "Effectiveness of the photochemical reflectance index to track photosynthetic activity over a range of forest tree species and plant water statuses" (Insieme di parole chiave)