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This study aims to understand how exogenous gibberellin (GA₃) affects soybean stem growth at different developmental stages.

April 29, 2026BMC Plant BiologyOpen Access

Stage-specific regulation of soybean stem growth by exogenous gibberellin (GA₃)

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Randomized trial investigates gibberellin effects on soybean stem growth across developmental stages, suggesting tailored applications.

This study aims to understand how exogenous gibberellin (GA₃) affects soybean stem growth at different developmental stages.
Exogenous GA₃ was applied to soybean stems at the V1 and V4 growth stages.
Changes in cell wall components and gene expression were analyzed.
Transcriptome analysis was conducted to identify differentially expressed genes.
GA₃ treatment significantly promoted plant height and internode elongation at the V1 stage.
Cellulose, lignin, and hemicellulose contents were reduced, more prominently at V1 than V4.
Transcriptome analysis revealed significant enrichment in pathways related to plant hormone signaling and biosynthesis at V1.

Shan et al. (2026) studied this question.

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