About Lesson
- Most labor, time and resource intensive method; usually compromise between crosses and population sizes;
- Very dependent on skill of breeder in recognizing promising material;
- Not very effective with low h2 traits;
- Slow; can usually put through only one generation per year, and the right environmental conditions must be at hand for accurate selection.
- Upper ceiling set by allelic contents of F2; cannot purge selections of undesirable alleles once ‘fixed’.
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