PowerPoint Presentation - The American Chestnut Foundation’s Breeding Program

Backcrossing

• C x A

• ¯

• F1 x A

• ¯

• B1 x A

• ¯

• B2 x A

• ¯

• B3 x B3

•

• ¯

• B3-F2 x B3-F2

•

• ¯

• B3-F3

Year crosses

made

old

days

1989-1995

1995-2003

2001-2011

2005-2020