Variation of Photosynthetic Induction in Major Horticultural Crops Is Mostly Driven by Differences in Stomatal Traits.

ABSTRACT: Under natural conditions, irradiance frequently fluctuates, causing net photosynthesis rate (A) to respond slowly and reducing the yields. We quantified the genotypic variation of photosynthetic induction in 19 genotypes among the following six horticultural crops: basil, chrysanthemum, cucumber, lettuce, tomato, and rose. Kinetics of photosynthetic induction and the stomatal opening were measured by exposing shade-adapted leaves (50 μmol m^-2 s^-1) to a high irradiance (1000 μmol m^-2 s^-1) until A reached a steady state. Rubisco activation rate was estimated by the kinetics of carboxylation capacity, which was quantified using dynamic A vs. [CO₂] curves. Generally, variations in photosynthetic induction kinetics were

SUBMITTER: Zhang N 

PROVIDER: S-EPMC9094112 | biostudies-literature | 2022

REPOSITORIES: biostudies-literature