The following is an excerpt.
Wheat yields could potentially double as scientists seek to make the crop’s efficiency of photosynthesis similar to that of maize plants.
Maize draws in more carbon dioxide than wheat does, making it twice as efficient at transforming light energy into biomass and hence yield.
They are confident this yield lift can be reached without using genetic modification (GM) technology, although GM is being used in the laboratory to map particular traits.
Read the full article here: Could wheat be made more like maize?