Interactive Effects of Exogenous Hormones, Sucrose, and Environmental Factors on the Growth of Phyllostachys edulis Shoots
2025
Chongyang Wu | Junlei Xu | Changhong Mu | Yali Xie | Wenlong Cheng | Jian Gao
The growth of bamboo shoots during the rapid growth phase critically determines overall bamboo height development. While exogenous hormones and sugars promote plant growth, their interactions with environmental factors and regional variations remain unclear. This study examined moso bamboo (Phyllostachys edulis) from Anhui and Hubei provinces using random forest and Bayesian hierarchical models to analyze direct and interactive effects of auxin, gibberellin, sucrose, auxin transport inhibitors, mTOR signaling pathway inhibitors, and environmental factors on shoot height. Results identified mean temperature, minimum temperature, precipitation, and subsurface runoff as key environmental drivers. Regional adaptations were evident: Anhui bamboo showed positive correlations with temperature factors, while Hubei bamboo exhibited negative correlations. Subsurface runoff consistently promoted growth, whereas precipitation negatively impacted development. Gibberellin and auxin treatments significantly enhanced bamboo responsiveness to favorable environmental conditions, while inhibitor treatments reduced these responses. This research elucidates complex interactions among exogenous hormones, sugars, and environmental factors affecting bamboo shoot growth. The findings reveal distinct regional adaptation patterns and demonstrate how hormone treatments can modulate environmental responsiveness. These insights provide theoretical foundations and practical guidance for optimizing regional bamboo forest management strategies and improving yield outcomes.
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