Silicon Accumulation and Photosynthetic Capacity of Dendrocalamus brandisii in Response to Sodium Silicate Foliar Application Across Vegetative Phenological Stages
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View abstract on PubMed
Summary
This summary is machine-generated.Sodium silicate foliar application boosts silicon accumulation and photosynthetic capacity in bamboo (Dendrocalamus brandisii). Critical periods for silicon uptake are May and August, enhancing growth and carbon assimilation.
Area Of Science
- Plant Physiology
- Agricultural Science
- Biochemistry
Background
- Silicon is vital for plant growth but underutilized in bamboo cultivation.
- Understanding silicon's role in bamboo physiology is crucial for optimizing growth.
Purpose Of The Study
- To investigate silicon accumulation and photosynthetic responses of Dendrocalamus brandisii to sodium silicate foliar application.
- To identify critical phenological stages for silicon uptake in bamboo.
Main Methods
- Foliar application of sodium silicate (SS) to Dendrocalamus brandisii.
- Monitoring silicon content, photosynthetic rates (Pn), chlorophyll content, and photosystem activity (Fv/Fm, Fv'/Fm') across phenological stages.
- Correlation analysis between silicon content and physiological parameters.
Main Results
- Silicon accumulation peaked during the shooting (August) and branching/leafing (May) stages.
- Sodium silicate significantly improved net photosynthetic rate, chlorophyll content, and photosystem efficiency in May and August.
- Higher silicon content correlated positively with photosynthetic parameters and photoassimilate accumulation.
Conclusions
- Silicon application enhances bamboo photosynthetic capacity and carbon assimilation by promoting phytolith formation.
- May and August are key phenological stages for effective silicon fertilization in Dendrocalamus brandisii.
- This study provides a basis for silicon fertilizer use in bamboo cultivation.
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