Discussion
Thai bitter melon has been reported as one of the under-utilized
vegetables in Thailand; even it was well-known and often consumed by Thai
people especially in rural areas. It was suggested that a research should
emphasize its potential as a health food vegetable and as a medicinal plant
(Nath et al., 1999), as the previous work conducted by Ditchaiwong et al.
(2002). This current study focusing germplasm collection is a primary step for
the breeding program. To make more understanding of these genetic resources
for future breeding efforts, it is significant to evaluate the most useful
characters to define groups. Presently, multiple traits analyses such as principal