Elevated carbon dioxide ameliorates the effect of Zn deficiency and terminal drought on wheat grain yield but compromises nutritional quality

Elevated atmospheric carbon dioxide (CO2) has a positive impact on grain yield as a consequence of increased photosynthetic rate and efficient utilization of water, but may negatively affect nutritional quality of the grains. This study aimed at revealing the impact of elevated CO2 and terminal drought on yield performance and nutritional status of bread wheat as affected by Zn availability in soil.