Primka, E. J., & Smith, W. K. (2019). Synchrony in fall leaf drop: chlorophyll degradation, color change, and abscission layer formation in three temperate deciduous tree species. American Journal of Botany, 106(3), 377–388. https://doi.org/10.1002/ajb2.1247
The article titled “Synchrony in Fall Leaf Drop: Chlorophyll Degradation, Color Change, and Abscission Layer Formation in Three Temperate Deciduous Tree Species,” published in the American Journal of Botany, represents an academic peer-reviewed research material.
This is an academic material written by experts in their field from various academic institutions, with a list of in-text citations and bibliography sources listed at the end of the article. This can further be classified as peer-reviewed academic material which was indicated in the acknowledgment section, and thus can be classified as an academic peer-reviewed research material based on the article method and result section.