About Lesson
- Environmental changes from season to season so adaptive advantages shift
- Most grow bulk seed lots in area of adaptation
- Less efficient than pedigree method on highly heritable traits (because can purge non-selections in early generations)
- Not useful in selecting plant types at a competitive disadvantage (dwarf types)
- Final genotypes may be able to withstand environmental stress, but may not be highest yielding
- If used with a cross pollinated species, inbreeding depression may be a problem
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