Plant material. An initial selection of 15
C. moschata and 15 C. pepo cultigens (cultivars,
heirlooms, and PIs) was made based
on subjective descriptions of flesh color
with samples representing a range of whites,
yellows, and oranges. Cultivars and heirlooms
were purchased from commercial seed
producers, whereas PIs were obtained from
the USDA-ARS North Central (Ames, IA)
and Southern (Athens, GA) Regional Plant
Introduction Stations.