CotLeaf-2: Cotton Leaf Surface Images dataset 2021-23

This dataset is a collection of 810 images of cotton leaf surfaces acquired with a hand-held microscope to develop deep learning models for leaf hairiness and assist Cotton breeders in their variety selection efforts. These images were collected from 27 genotypes grown across 2 seasons (2021-2022 and 2022-2023), one site (Australian Cotton Research Institute, -30.21, 149.60, Narrabri, NSW, Australia) and two growth conditions (Field [both years] and Glasshouse [2021-2022]). Genotypes have been anonymized to protect germplasm Intellectual Property.