All 700+ cultivars listed by Ira Condit in his 1955 Monograph were examined for attributes of agricultural importance. Sixty three were identified, having skipped those solely for plant ID. Several data products were generated and are publically available here.
See "Ira Condit's 1955 Fig Monograph - Guide to Data.pdf" for details.
Spreadsheet and image files are located in "condit monograph database files.zip".
Software source files are located in "condit monograph software files.zip".