Photosynthetic capacity of field-grown durum wheat under different N availabilities: a comparative study from leaf to canopy (Articolo in rivista)

Type

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

Label

• Photosynthetic capacity of field-grown durum wheat under different N availabilities: a comparative study from leaf to canopy (Articolo in rivista) (literal)

Anno

• 2009-01-01T00:00:00+01:00 (literal)

Alternative label

• Cabrera-Bosquet L.; Albrizio R.; Araus J. L.; Nogués S. (2009)
  Photosynthetic capacity of field-grown durum wheat under different N availabilities: a comparative study from leaf to canopy
  in Environmental and experimental botany
  (literal)

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

• Cabrera-Bosquet L.; Albrizio R.; Araus J. L.; Nogués S. (literal)

Pagina inizio

• 145 (literal)

Pagina fine

• 152 (literal)

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

• 67 (literal)

Rivista

• Environmental and experimental botany (Rivista)

Note

• ISI Web of Science (WOS) (literal)

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

• Cabrera-Bosquet L.; Nogués S. Unitat de Fisiologia Vegetal, Facultat de Biología, Universitat de Barcelona, Diagonal 645, E-08028 Barcelona, Spain. Albrizio R. CNR-ISAFOM Via Cupa Patacca 85, E-80056 Ercolano, Napoli, Italy Araus J.L International Maize and Wheat Improvement Center (CIMMYT), El Batán, México (literal)

Titolo

• Photosynthetic capacity of field-grown durum wheat under different N availabilities: a comparative study from leaf to canopy (literal)

Abstract

• The effect of N availability on photosynthetic capacity, growth parameters and yield was studied in fieldgrown durum-wheat plants at both the leaf and canopy levels. Two contrasting nitrogen levels (120 and 0kgha-1) were assayed in a randomised block design with nine replicates each. Total biomass was measured at anthesis and yield and its agronomical components at maturity. Photosynthetic measurements were performed 2weeks after anthesis in two plots of eachNtreatment. Flag leaveswere measured, using a LI-COR 6400 combined with the chlorophyll fluorescence meter, and the whole canopy by measuring CO2 and H2O fluxes in an innovative canopy-chamber system. We showed a clear increase in photosynthetic gas exchange and chlorophyll contents with N fertilisation at both canopy and leaf levels. As a consequence the increase in yield as response to N fertilisation seems the result of a larger green leaf area combined with a higher photosynthetic capacity of the leaves attributable to an increase in the maximum carboxylation velocity of Rubisco. Moreover gas-exchange measurements of the flag leaf during grain filling seem to provide a realistic characterisation, not just of the photosynthetic performance of the crop, but also about the impact of N availability on yield. Thus, measurements performed on the flag leaf matched those at the canopy level, with proportional increases in terms of gas exchange and chlorophyll content, providing a fast, cheap and reliable estimation of canopy photosynthesis and the grain yield attained by the crop. (literal)

Prodotto di

• Vulnerabilità del territorio agricolo e forestale all'uso ed agli stress abiotici (AG.P04.019.001) (Modulo)
• Institute for Agricultural and Forest Systems in the Mediterranean (ISAFoM) (Istituto)

Autore CNR

• ROSSELLA ALBRIZIO (Unità di personale interno)

Incoming links:

Prodotto

• Institute for Agricultural and Forest Systems in the Mediterranean (ISAFoM) (Istituto)
• Vulnerabilità del territorio agricolo e forestale all'uso ed agli stress abiotici (AG.P04.019.001) (Modulo)

Autore CNR di

• ROSSELLA ALBRIZIO (Unità di personale interno)

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

• Environmental and experimental botany (Rivista)