Effects of artificial light at night and drought on the photosynthesis and physiological traits of two urban plants.

ABSTRACT: Urban plants are currently confronted with the stresses posed by artificial light at night (ALAN) and drought. A field block experiment was designed to explore the potential effects of ALAN and drought on the photosynthesis and physiological characters of two common urban plants, Euonymus japonicus (E. japonicus) and Rosa hybrida (R. hybrida). Each plant species was subjected to four distinct treatments: neither ALAN nor drought, ALAN, drought, and both ALAN and drought. The result showed the following: (1) ALAN significantly reduced the effective quantum yield (Φ_PSII), apparent electron transfer rate (ETR), photochemical quenching parameter (_qp), net photosynthetic (Pn), stomatal conductance (Gs), stomatal limit value (Ls), and the pigment

SUBMITTER: Wei Y 

PROVIDER: S-EPMC10602676 | biostudies-literature | 2023

REPOSITORIES: biostudies-literature