Para acceder a los documentos con el texto completo, por favor, siga el siguiente enlace: http://hdl.handle.net/2445/64729

The effects of depleted, current and elevated growth [CO2] in wheat are modulated by water availability
ALJAZAIRI, Salvador; Nogués Mestres, Salvador
Universitat de Barcelona
Drought is the main constraint on wheat yield in Mediterranean conditions. The photosynthesis, chlorophyll fluorescence and plant growth parameters of durum wheat (Triticum turgidum, L. var. durum) were compared at three [CO2] (i.e., depleted 260 ppm, current 400ppm and elevated 700 ppm) in plants subjected to twowater regimes (i.e.,well-wateredWW, and mildwater stress by drought orwater deficit WS), during pre-anthesis, post-anthesis and the end of grain filling. We showed that [CO2] effects on plants are modulated by water availability. Plants at depleted [CO2] showed photosynthetic acclimation (i.e., up-regulation) and reduced plant biomass and Harvest Index, but depleted [CO2] combined with WS has a more negative impact on plants with decreases in C assimilation and biomass. Plants at elevated [CO2] had decreased plant growth and photosynthesis in response to a down-regulation mechanism resulting from a decrease in Rubisco and N content, but plants exposed to a combination of elevated [CO2] and WS were the most negatively affected (e.g., on plant biomass).
Canvis climàtics
Nitrogen
Oxigen
Fotosíntesi
Climatic changes
Nitrogen
Oxygen
Photosynthesis
(c) Elsevier B.V., 2015
Artículo
info:eu-repo/semantics/acceptedVersion
Elsevier B.V.
         

Mostrar el registro completo del ítem

Documentos relacionados

Otros documentos del mismo autor/a

Villegas i Tort, Dolors; Casadesús i Brugués, Jaume; Atienza, Sergio G.; Martos, Vanessa; Maalouf, Fouad; Karam, Fadi; Aranjuelo, Iker; Nogués Mestres, Salvador
Aljazairi López, Salvador; Arias, Claudia; Sánchez, Elena; Lino, Gladys; Nogués Mestres, Salvador
Sánchez, Elena; Scordia, D.; Lino, Gladys; ARrias, Claudia; Cosentino S.; Nogués Mestres, Salvador
Gauthier, P.; Lamothe, M.; Molero Milán, Gemma; Mahé, A.; Hodges, M.; Nogués Mestres, Salvador; Tcherkez, G.