Journal Article Research Support, Non-U.S. Gov't Rubisco 142M471B3J Carbon Dioxide Triticum aestivum leaf nitrogen photosynthesis 7440-57-5 CO2 assimilation CO2 response curves Carbon assimilation Electron transport rate Gold Research Support, U.S. Gov't, Non-P.H.S. SPAD Triticum turgidum electron transport electron transport rate genotypic diversity grain yield hyperspectral reflectance leaf dry mass per area partial least squares phenotyping radiation use efficiency synthetic biology velocity of carboxylation yield