Effect of gibberellic acid on photosynthesis and oxidative stress response in maize under weak light conditions.

ABSTRACT: Gibberellin (GA) is an important endogenous hormone involved in plant responses to abiotic stresses. Experiments were conducted at the Research and Education Center of Agronomy, Shenyang Agricultural University (Shenyang, China) in 2021.We used a pair of near-isogenic inbred maize lines comprising, SN98A (light-sensitive inbred line) and SN98B (light-insensitive inbred line) to study the effects of exogenous gibberellin A3 (GA₃) application on different light-sensitive inbred lines under weak light conditions. The concentration of GA₃ was selected as 20, 40 and 60 mg L^-1. After shade treatment, the photosynthetic physiological indexes of SN98A were always lower than SN98B, and the net photosynthetic rate of SN98A was 10.12% lower than SN98B on the 20th day

SUBMITTER: Fu J 

PROVIDER: S-EPMC9978513 | biostudies-literature | 2023

REPOSITORIES: biostudies-literature