The Biological Intelligence (BI) Lab, School of Life and Environmental Sciences, University of Sydney, Camperdown, Australia; School of Science and Engineering and School of Creative Industries, University of the Sunshine Coast, Maroochydore, Australia
In 2016 we reported evidence for associative learning in plants (Gagliano et al., 2016). In view of the far-reaching implications of this finding we welcome the attempt made by Markel to replicate our study (Markel, 2020). However, as we discuss here, the protocol employed by Markel was unsuitable for testing for associative learning.