When trying to classify a variety I found a number of varieties including the following:
a) Line
b) Simple cross hybrid (AxB)
c) Three line hybrid (AxB)xD
d) Double hybrid (AxB)x(CxD)
e) Intervarietal hybrid
f) Free pollination variety
g) Synthetic variety
h) Multilineal variety
i) Mestizo
j) Clone
k) Other (indicate formula).
If you happen yo know any bibliography wherein I can read more about the topic, please let me know.
Thank you.