The authors of Chen et al. (2019) have misquoted Nayar et al. (2013) in regard to CKX2, a mistake for which they apologize. To rectify this, the following changes should be made to their article:In Table 2, the reference to Nayar et al. (2013) should be removed. The respective row in the table should read as follows:In the first paragraph of page 622, the sentence ‘Two papers on CKX2 in rice give cause for concern.’ should read ‘Two papers on cytokinin in rice give cause for concern.’