“…Much of our knowledge pertaining to the genetic basis of potato skin and flesh color has been ascertained from manual qualitative scoring of individual clones for their color characteristics (Salaman, 1910;Zhang et al, 2009), whereas visual inspection of skin quality and internal flesh color is an important component of tuber grading protocols. To date, most research studies have relied upon categorical scoring of skin and flesh color performed by human subjects (Buhrig et al, 2015;De Jong, 1987;Jung et al, 2009) or based upon subsampling within a single tuber using a digital colorimeter (Buhrig et al, 2015;Qin et al, 2020;Roe et al, 2014;Thornton et al, 2013;Waterer, 2010). These types of measurement strategies are subject to many of the challenges associated with manual measurements of tuber shape; particularly the tradeoffs observed between accuracy, precision, resolution, and throughput (Krupek et al, 2021;Miller et al, 2023;Roe et al, 2014).…”