Photosynthetic Induction Under Fluctuating Light Is Affected by Leaf Nitrogen Content in Tomato.

ABSTRACT: The response of photosynthetic CO₂ assimilation to changes of illumination affects plant growth and crop productivity under natural fluctuating light conditions. However, the effects of nitrogen (N) supply on photosynthetic physiology after transition from low to high light are seldom studied. To elucidate this, we measured gas exchange and chlorophyll fluorescence under fluctuating light in tomato (Solanum lycopersicum) seedlings grown with different N conditions. After transition from low to high light, the induction speeds of net CO₂ assimilation (A _N ), stomatal conductance (g _s ), and mesophyll conductance (g _m ) delayed with the decline in leaf N content. The time to reach 90% of m

SUBMITTER: Sun H 

PROVIDER: S-EPMC8891375 | biostudies-literature | 2022

REPOSITORIES: biostudies-literature