| Autor: |
PINTO, M. L. P. B., CRASQUE, J., CERRI NETO, B., FERREIRA, T. R., SOUZA, C. A. S., FALQUETO, A. R., DE SOUZA, T. C., MACHADO FILHO, J. A., ARANTES, L. O., DOUSSEAU-ARANTES, S. |
| Předmět: |
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| Zdroj: |
Photosynthetica; 2023, Vol. 61 Issue 3, p377-389, 13p |
| Abstrakt: |
This study investigates how cocoa rootstocks respond to flooding and post-flooding conditions, offering insights for cocoa plantation sustainability in flood-prone areas due to climate change. We studied Theobroma cacao L. rootstocks for 60 d of flooding and 30 d post-flooding, grafting PS-1319 scions onto five rootstocks (TSH-1188, Cepec-2002, Pará, Esfip-02, SJ-02). Photochemical performance remained stable across rootstocks, while flooding progressively reduced electron transport efficiency. Photochemical damage emerged after 7 d, worsening occurred at 19 d. Although post-flooding efficiency improved, recovery time was insufficient for full restoration. Stem diameter increased less in Esfip-02. TSH-1188 had the highest stem dry mass during flooding and the most root and total dry mass during postflooding. SJ-02 had the lowest stem dry mass and post-flooding total dry mass. Principal component analysis revealed stem and root development as a key for recovery. SJ-02 and Esfip-02 showed lower flooding tolerance and recovery, while TSH-1188 and Pará exhibited higher resilience. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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