Fait partie de [OMA81]

2008 - 481 p.
p. 403-405

Assessment of durum wheat yield and carbon isotope discrimination by reflectance indices WI and PRI

Villegas D., Aparicio N., Royo C.

Relationships between grain yield, carbon isotope discrimination against 13C (?), and the spectral reflectance indices water index (WI) and photochemical reflectance index (PRI) were explored under Mediterranean conditions. Twenty-five durum wheat genotypes were grown in four environments in NE Spain, with a range of drought events that resulted in yield levels from low to high. Environment had a strong influence on all the traits studied, the genotype being also significant. WI proved to be a good indicator of yield when drought occurred during grain filling. PRI was also strongly related to yield, except in the driest environment. Relationship between these spectral reflectance indices and ? were inconsistent.

Mots-clés    

BLE DUR, CARACTERE AGRONOMIQUE, ESPAGNE, EXPERIMENTATION, FACTEUR DU MILIEU, INTERACTION GENOTYPE ENVIRONNEMENT, METHODE STATISTIQUE, SECHERESSE

Citer cet article    

Villegas D., Aparicio N., Royo C. Assessment of durum wheat yield and carbon isotope discrimination by reflectance indices WI and PRI. In : Molina-Cano J.L. (ed.), Christou P. (ed.), Graner A. (ed.), Hammer K. (ed.), Jouve N. (ed.), Keller B. (ed.), Lasa J.M. (ed.), Powell W. (ed.), Royo C. (ed.), Shewry P. (ed.), Stanca A.M. (ed.). Cereal science and technology for feeding ten billion people: genomics era and beyond. Zaragoza : CIHEAM / IRTA, 2008. p. 403-405. (Options Méditerranéennes : Série A. Séminaires Méditerranéens; n. 81). Meeting of the Eucarpia Cereal Section, 2006/11/13-17, Lleida (Spain). http://om.ciheam.org/om/pdf/a81/00800890.pdf