Brassinolide Application Mitigates Blossom-End Rot in Tomato by Enhancing Calcium Homeostasis and Antioxidant Defense Under Calcium Deficiency.

ABSTRACT: Blossom-end rot (BER) in tomatoes is a physiological disorder primarily caused by the disruption of calcium absorption and transport. This study cultivated tomatoes using a trough-based vermiculite system. Two treatments were established: a calcium-deficient nutrient solution and a calcium-deficient nutrient solution supplemented with 0.1 mg/L BR (n = 40 plants per treatment). The activities of catalase (CAT), peroxidase (POD), and superoxide dismutase (SOD), as well as the contents of malondialdehyde (MDA) and hydrogen peroxide (H₂O₂), were measured in the leaves. Calcium ion content was also determined in various plant parts. Statistical analysis of differences was performed using Duncan's multiple range test at a significance level of p < 0.01. Concur

SUBMITTER: Wang D 

PROVIDER: S-EPMC12899996 | biostudies-literature | 2026 Jan

REPOSITORIES: biostudies-literature