double cross hybrid
Quick Summary
The term "double cross" has two primary meanings. In genetics, it refers to a specific method used in plant breeding, particularly for producing hybrid seed corn. This process involves crossing four different inbred lines in stages to create a hybrid variety with enhanced traits, a phenomenon known as hybrid vigour. This technique, developed by Donald F. Jones, combines desirable characteristics from multiple inbred lines to produce offspring superior to their parents.123
The other meaning of "double cross" relates to betrayal or cheating, or winning a contest after agreeing to lose.1
Ask Britannica AI about this topic
Britannica doesn't have a full article on this topic, so we've curated a list of our relevant coverage.
