Variation of photosynthetic pigment concentration and composition and their association with yield in irrigated wheat
Material type:
ArticleLanguage: English Publication details: Italy : Experimental Institute for Cereal Research, 2003.ISSN: - 0394-9257
| Item type | Current library | Collection | Call number | Copy number | Status | Date due | Barcode | Item holds | |
|---|---|---|---|---|---|---|---|---|---|
| Article | CIMMYT Knowledge Center: John Woolston Library | CIMMYT Staff Publications Collection | CIS-4254 (Browse shelf(Opens below)) | 1 | Available | 630453 |
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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.
Global Wheat Program
Text in English
0411|AL-Wheat Program
INT1511
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