Variation of photosynthetic pigment concentration and composition and their association with yield in irrigated wheat
Monneveux, P.
Variation of photosynthetic pigment concentration and composition and their association with yield in irrigated wheat - Italy : Experimental Institute for Cereal Research, 2003. - Computer File
Peer review Peer-review: No - Open Access: No
Chlorophyll concentration increase and chlorophyll a/b ratio decrease have been reported to be associated with yield progress in wheat. Association between chlorophyll concentration and composition, and potential yield was suggested by several authors. In the present study, twenty bread wheat and twenty durum wheat genotypes were grown under irrigated conditions, in a high light environment (North-West Mexico). Chlorophyll concentration, chlorophyll a/b ratio and nitrogen concentration were assessed at heading stage on the flat leaf. Durum wheat had, on average, higher chlorophyll concentration and lower chlorophyll a/b ratio than bread wheat. No correlation was found between these traits and grain yield of the bread and durum genotypes. A significant negative correlation was found between total chlorophyll concentration and chlorophyll a/b ratio in bread wheat, but not in durum wheat. These data do not support the use of chlorophyll concentration and composition as indirect selection criteria for potential yield in wheat breeding programs.
Text in English
0394-9257
Triticum aestivum
Chlorophylls
Nitrogen
Yield potential
Variation of photosynthetic pigment concentration and composition and their association with yield in irrigated wheat - Italy : Experimental Institute for Cereal Research, 2003. - Computer File
Peer review Peer-review: No - Open Access: No
Chlorophyll concentration increase and chlorophyll a/b ratio decrease have been reported to be associated with yield progress in wheat. Association between chlorophyll concentration and composition, and potential yield was suggested by several authors. In the present study, twenty bread wheat and twenty durum wheat genotypes were grown under irrigated conditions, in a high light environment (North-West Mexico). Chlorophyll concentration, chlorophyll a/b ratio and nitrogen concentration were assessed at heading stage on the flat leaf. Durum wheat had, on average, higher chlorophyll concentration and lower chlorophyll a/b ratio than bread wheat. No correlation was found between these traits and grain yield of the bread and durum genotypes. A significant negative correlation was found between total chlorophyll concentration and chlorophyll a/b ratio in bread wheat, but not in durum wheat. These data do not support the use of chlorophyll concentration and composition as indirect selection criteria for potential yield in wheat breeding programs.
Text in English
0394-9257
Triticum aestivum
Chlorophylls
Nitrogen
Yield potential