References

Acquaah, G. (2012). Principles of Plant Genetics and Breeding (2nd ed.). Wiley-Blackwell.

Allard, R. W. (1960). Principles of plant breeding. John Willey and Sons. Inc. New York, 485. ISBN: 0 471 02310 8. See Chapter 14.

Fehr, W. (1991). Principles of cultivar development: Theory and technique. ISBN: 0-9635989-0-2. See Chapter 28.