Daytime, Not Nighttime, Elevated Atmospheric Carbon Dioxide Exposure Improves Plant Growth and Leaf Quality of Mulberry (Morus alba L.) Seedlings.

ABSTRACT: Almost all elevated atmospheric CO₂ concentrations (eCO₂) studies have not addressed the potential responses of plant growth to different CO₂ in daytime and nighttime. The present study was to determine the impact of daytime and/or nighttime eCO₂ on growth and quality of mulberry (Morus alba L.), a perennial multipurpose cash plant. Six-month-old mulberry seedlings were hence grown in environmentally auto-controlled growth chambers under four CO₂ concentrations: (1) ambient CO₂ (ACO₂, 410 μmol mol^-1 daytime/460 μmol mol^-1 nighttime), (2) sole daytime elevated CO₂ (DeCO₂, 710 μmol mol^-1/460 μmol mol^-1), (3) sole nighttime elevated CO₂

SUBMITTER: Shi S 

PROVIDER: S-EPMC7890035 | biostudies-literature | 2020

REPOSITORIES: biostudies-literature